165 files changed, 9881 insertions, 2919 deletions

diff --git a/gl/Makefile.am b/gl/Makefile.am
index 67c9872d..92c675ea 100644
--- a/gl/Makefile.am
+++ b/gl/Makefile.am
@@ -9,7 +9,7 @@
 # the same distribution terms as the rest of that program.
 #
 # Generated by gnulib-tool.
-# Reproduce by: gnulib-tool --import --dir=. --lib=libgnu --source-base=gl --m4-base=gl/m4 --doc-base=doc --aux-dir=. --no-libtool --macro-prefix=gl dirname fsusage getaddrinfo gethostname getloadavg getopt gettext mountlist regex vasprintf vsnprintf
+# Reproduce by: gnulib-tool --import --dir=. --lib=libgnu --source-base=gl --m4-base=gl/m4 --doc-base=doc --aux-dir=build-aux --no-libtool --macro-prefix=gl dirname fsusage getaddrinfo gethostname getloadavg getopt gettext mountlist regex vasprintf vsnprintf
 
 AUTOMAKE_OPTIONS = 1.5 gnits
 
@@ -34,6 +34,15 @@ libgnu_a_LIBADD = $(gl_LIBOBJS)
 libgnu_a_DEPENDENCIES = $(gl_LIBOBJS)
 EXTRA_libgnu_a_SOURCES =
 
+## begin gnulib module absolute-header
+
+# Use this preprocessor expression to decide whether #include_next works.
+# Do not rely on a 'configure'-time test for this, since the expression
+# might appear in an installed header, which is used by some other compiler.
+HAVE_INCLUDE_NEXT = (__GNUC__ || 60000000 <= __DECC_VER)
+
+## end   gnulib module absolute-header
+
 ## begin gnulib module alloca
 
 
@@ -51,14 +60,14 @@ BUILT_SOURCES += $(ALLOCA_H)
 
 # We need the following in order to create <alloca.h> when the system
 # doesn't have one that works with the given compiler.
-alloca.h: alloca_.h
+alloca.h: alloca.in.h
         { echo '/* DO NOT EDIT! GENERATED AUTOMATICALLY! */'; \
-          cat $(srcdir)/alloca_.h; \
+          cat $(srcdir)/alloca.in.h; \
         } > $@-t
         mv -f $@-t $@
 MOSTLYCLEANFILES += alloca.h alloca.h-t
 
-EXTRA_DIST += alloca_.h
+EXTRA_DIST += alloca.in.h
 
 ## end   gnulib module alloca-opt
 
@@ -69,7 +78,7 @@ BUILT_SOURCES += $(ARPA_INET_H)
 # We need the following in order to create <arpa/inet.h> when the system
 # doesn't have one.
 arpa/inet.h:
-        test -d arpa || mkdir arpa
+        @MKDIR_P@ arpa
         rm -f $@-t $@
         { echo '/* DO NOT EDIT! GENERATED AUTOMATICALLY! */'; \
           echo '#include <sys/socket.h>'; \
@@ -98,6 +107,62 @@ EXTRA_libgnu_a_SOURCES += cloexec.c
 
 ## end   gnulib module cloexec
 
+## begin gnulib module configmake
+
+# Retrieve values of the variables through 'configure' followed by
+# 'make', not directly through 'configure', so that a user who
+# sets some of these variables consistently on the 'make' command
+# line gets correct results.
+#
+# One advantage of this approach, compared to the classical
+# approach of adding -DLIBDIR=\"$(libdir)\" etc. to AM_CPPFLAGS,
+# is that it protects against the use of undefined variables.
+# If, say, $(libdir) is not set in the Makefile, LIBDIR is not
+# defined by this module, and code using LIBDIR gives a
+# compilation error.
+#
+# Another advantage is that 'make' output is shorter.
+#
+# Listed in the same order as the GNU makefile conventions.
+# The Automake-defined pkg* macros are appended, in the order
+# listed in the Automake 1.10a+ documentation.
+configmake.h: Makefile
+        rm -f $@-t $@
+        { echo '/* DO NOT EDIT! GENERATED AUTOMATICALLY! */'; \
+          echo '#define PREFIX "$(prefix)"'; \
+          echo '#define EXEC_PREFIX "$(exec_prefix)"'; \
+          echo '#define BINDIR "$(bindir)"'; \
+          echo '#define SBINDIR "$(sbindir)"'; \
+          echo '#define LIBEXECDIR "$(libexecdir)"'; \
+          echo '#define DATAROOTDIR "$(datarootdir)"'; \
+          echo '#define DATADIR "$(datadir)"'; \
+          echo '#define SYSCONFDIR "$(sysconfdir)"'; \
+          echo '#define SHAREDSTATEDIR "$(sharedstatedir)"'; \
+          echo '#define LOCALSTATEDIR "$(localstatedir)"'; \
+          echo '#define INCLUDEDIR "$(includedir)"'; \
+          echo '#define OLDINCLUDEDIR "$(oldincludedir)"'; \
+          echo '#define DOCDIR "$(docdir)"'; \
+          echo '#define INFODIR "$(infodir)"'; \
+          echo '#define HTMLDIR "$(htmldir)"'; \
+          echo '#define DVIDIR "$(dvidir)"'; \
+          echo '#define PDFDIR "$(pdfdir)"'; \
+          echo '#define PSDIR "$(psdir)"'; \
+          echo '#define LIBDIR "$(libdir)"'; \
+          echo '#define LISPDIR "$(lispdir)"'; \
+          echo '#define LOCALEDIR "$(localedir)"'; \
+          echo '#define MANDIR "$(mandir)"'; \
+          echo '#define MANEXT "$(manext)"'; \
+          echo '#define PKGDATADIR "$(pkgdatadir)"'; \
+          echo '#define PKGINCLUDEDIR "$(pkgincludedir)"'; \
+          echo '#define PKGLIBDIR "$(pkglibdir)"'; \
+          echo '#define PKGLIBEXECDIR "$(pkglibexecdir)"'; \
+        } | sed '/""/d' > $@-t
+        mv $@-t $@
+BUILT_SOURCES += configmake.h
+CLEANFILES += configmake.h configmake.h-t
+
+## end   gnulib module configmake
+
 ## begin gnulib module dirname
 
 
@@ -116,12 +181,6 @@ EXTRA_libgnu_a_SOURCES += error.c
 
 ## end   gnulib module error
 
-## begin gnulib module exit
-
-libgnu_a_SOURCES += exit.h
-
-## end   gnulib module exit
-
 ## begin gnulib module exitfail
 
 
@@ -140,6 +199,26 @@ EXTRA_libgnu_a_SOURCES += creat-safer.c open-safer.c
 
 ## end   gnulib module fcntl-safer
 
+## begin gnulib module float
+
+BUILT_SOURCES += $(FLOAT_H)
+
+# We need the following in order to create <float.h> when the system
+# doesn't have one that works with the given compiler.
+float.h: float.in.h
+        rm -f $@-t $@
+        { echo '/* DO NOT EDIT! GENERATED AUTOMATICALLY! */' && \
+          sed -e 's/@''INCLUDE_NEXT''@/$(INCLUDE_NEXT)/g' \
+              -e 's|@''NEXT_FLOAT_H''@|$(NEXT_FLOAT_H)|g' \
+              < $(srcdir)/float.in.h; \
+        } > $@-t
+        mv $@-t $@
+MOSTLYCLEANFILES += float.h float.h-t
+
+EXTRA_DIST += float.in.h
+
+## end   gnulib module float
+
 ## begin gnulib module fsusage
 
 
@@ -194,14 +273,14 @@ BUILT_SOURCES += $(GETOPT_H)
 
 # We need the following in order to create <getopt.h> when the system
 # doesn't have one that works with the given compiler.
-getopt.h: getopt_.h
+getopt.h: getopt.in.h
         { echo '/* DO NOT EDIT! GENERATED AUTOMATICALLY! */'; \
-          cat $(srcdir)/getopt_.h; \
+          cat $(srcdir)/getopt.in.h; \
         } > $@-t
         mv -f $@-t $@
 MOSTLYCLEANFILES += getopt.h getopt.h-t
 
-EXTRA_DIST += getopt.c getopt1.c getopt_.h getopt_int.h
+EXTRA_DIST += getopt.c getopt.in.h getopt1.c getopt_int.h
 
 EXTRA_libgnu_a_SOURCES += getopt.c getopt1.c
 
@@ -219,6 +298,8 @@ EXTRA_libgnu_a_SOURCES += getopt.c getopt1.c
 # "gettextize --intl".
 AM_CPPFLAGS += -I$(top_builddir)/intl
 
+EXTRA_DIST += $(top_srcdir)/build-aux/config.rpath
+
 ## end   gnulib module gettext
 
 ## begin gnulib module gettext-h
@@ -227,6 +308,13 @@ libgnu_a_SOURCES += gettext.h
 
 ## end   gnulib module gettext-h
 
+## begin gnulib module havelib
+
+
+EXTRA_DIST += $(top_srcdir)/build-aux/config.rpath
+
+## end   gnulib module havelib
+
 ## begin gnulib module inet_ntop
 
 
@@ -243,44 +331,89 @@ EXTRA_DIST += intprops.h
 
 ## end   gnulib module intprops
 
-## begin gnulib module malloc
-
-
-EXTRA_DIST += malloc.c
-
-EXTRA_libgnu_a_SOURCES += malloc.c
-
-## end   gnulib module malloc
-
-## begin gnulib module mbchar
+## begin gnulib module link-warning
+
+LINK_WARNING_H=$(top_srcdir)/build-aux/link-warning.h
+
+EXTRA_DIST += $(top_srcdir)/build-aux/link-warning.h
+
+## end   gnulib module link-warning
+
+## begin gnulib module localcharset
+
+libgnu_a_SOURCES += localcharset.h localcharset.c
+
+# We need the following in order to install a simple file in $(libdir)
+# which is shared with other installed packages. We use a list of referencing
+# packages so that "make uninstall" will remove the file if and only if it
+# is not used by another installed package.
+# On systems with glibc-2.1 or newer, the file is redundant, therefore we
+# avoid installing it.
+
+all-local: charset.alias ref-add.sed ref-del.sed
+
+charset_alias = $(DESTDIR)$(libdir)/charset.alias
+charset_tmp = $(DESTDIR)$(libdir)/charset.tmp
+install-exec-local: all-local
+        test $(GLIBC21) != no || $(mkinstalldirs) $(DESTDIR)$(libdir)
+        if test -f $(charset_alias); then \
+          sed -f ref-add.sed $(charset_alias) > $(charset_tmp) ; \
+          $(INSTALL_DATA) $(charset_tmp) $(charset_alias) ; \
+          rm -f $(charset_tmp) ; \
+        else \
+          if test $(GLIBC21) = no; then \
+            sed -f ref-add.sed charset.alias > $(charset_tmp) ; \
+            $(INSTALL_DATA) $(charset_tmp) $(charset_alias) ; \
+            rm -f $(charset_tmp) ; \
+          fi ; \
+        fi
+
+uninstall-local: all-local
+        if test -f $(charset_alias); then \
+          sed -f ref-del.sed $(charset_alias) > $(charset_tmp); \
+          if grep '^# Packages using this file: $$' $(charset_tmp) \
+              > /dev/null; then \
+            rm -f $(charset_alias); \
+          else \
+            $(INSTALL_DATA) $(charset_tmp) $(charset_alias); \
+          fi; \
+          rm -f $(charset_tmp); \
+        fi
 
+charset.alias: config.charset
+        rm -f t-$@ $@
+        $(SHELL) $(srcdir)/config.charset '$(host)' > t-$@
+        mv t-$@ $@
 
-EXTRA_DIST += mbchar.c mbchar.h
+SUFFIXES += .sed .sin
+.sin.sed:
+        rm -f t-$@ $@
+        sed -e '/^#/d' -e 's/@''PACKAGE''@/$(PACKAGE)/g' $< > t-$@
+        mv t-$@ $@
 
-EXTRA_libgnu_a_SOURCES += mbchar.c
+CLEANFILES += charset.alias ref-add.sed ref-del.sed
 
-## end   gnulib module mbchar
+EXTRA_DIST += config.charset ref-add.sin ref-del.sin
 
-## begin gnulib module mbuiter
+## end   gnulib module localcharset
 
-libgnu_a_SOURCES += mbuiter.h
+## begin gnulib module malloc
 
-## end   gnulib module mbuiter
 
-## begin gnulib module memchr
+EXTRA_DIST += malloc.c
 
+EXTRA_libgnu_a_SOURCES += malloc.c
 
-EXTRA_DIST += memchr.c
+## end   gnulib module malloc
 
-EXTRA_libgnu_a_SOURCES += memchr.c
+## begin gnulib module malloc-posix
 
-## end   gnulib module memchr
 
-## begin gnulib module minmax
+EXTRA_DIST += malloc.c
 
-libgnu_a_SOURCES += minmax.h
+EXTRA_libgnu_a_SOURCES += malloc.c
 
-## end   gnulib module minmax
+## end   gnulib module malloc-posix
 
 ## begin gnulib module mountlist
 
@@ -297,16 +430,21 @@ BUILT_SOURCES += $(NETINET_IN_H)
 
 # We need the following in order to create <netinet/in.h> when the system
 # doesn't have one.
-netinet/in.h:
-        test -d netinet || mkdir netinet
+netinet/in.h: netinet_in.in.h
+        @MKDIR_P@ netinet
         rm -f $@-t $@
         { echo '/* DO NOT EDIT! GENERATED AUTOMATICALLY! */'; \
-          echo '#include <sys/socket.h>'; \
+          sed -e 's/@''INCLUDE_NEXT''@/$(INCLUDE_NEXT)/g' \
+              -e 's|@''NEXT_NETINET_IN_H''@|$(NEXT_NETINET_IN_H)|g' \
+              -e 's|@''HAVE_NETINET_IN_H''@|$(HAVE_NETINET_IN_H)|g' \
+              < $(srcdir)/netinet_in.in.h; \
         } > $@-t
         mv $@-t $@
 MOSTLYCLEANFILES += netinet/in.h netinet/in.h-t
 MOSTLYCLEANDIRS += netinet
 
+EXTRA_DIST += netinet_in.in.h
+
 ## end   gnulib module netinet_in
 
 ## begin gnulib module regex
@@ -345,7 +483,7 @@ libgnu_a_SOURCES += size_max.h
 ## begin gnulib module snprintf
 
 
-EXTRA_DIST += snprintf.c snprintf.h
+EXTRA_DIST += snprintf.c
 
 EXTRA_libgnu_a_SOURCES += snprintf.c
 
@@ -357,15 +495,15 @@ BUILT_SOURCES += $(STDBOOL_H)
 
 # We need the following in order to create <stdbool.h> when the system
 # doesn't have one that works.
-stdbool.h: stdbool_.h
+stdbool.h: stdbool.in.h
         rm -f $@-t $@
         { echo '/* DO NOT EDIT! GENERATED AUTOMATICALLY! */'; \
-          sed -e 's/@''HAVE__BOOL''@/$(HAVE__BOOL)/g' < $(srcdir)/stdbool_.h; \
+          sed -e 's/@''HAVE__BOOL''@/$(HAVE__BOOL)/g' < $(srcdir)/stdbool.in.h; \
         } > $@-t
         mv $@-t $@
 MOSTLYCLEANFILES += stdbool.h stdbool.h-t
 
-EXTRA_DIST += stdbool_.h
+EXTRA_DIST += stdbool.in.h
 
 ## end   gnulib module stdbool
 
@@ -375,11 +513,12 @@ BUILT_SOURCES += $(STDINT_H)
 
 # We need the following in order to create <stdint.h> when the system
 # doesn't have one that works with the given compiler.
-stdint.h: stdint_.h
+stdint.h: stdint.in.h
         rm -f $@-t $@
         { echo '/* DO NOT EDIT! GENERATED AUTOMATICALLY! */'; \
           sed -e 's/@''HAVE_STDINT_H''@/$(HAVE_STDINT_H)/g' \
-              -e 's|@''ABSOLUTE_STDINT_H''@|$(ABSOLUTE_STDINT_H)|g' \
+              -e 's/@''INCLUDE_NEXT''@/$(INCLUDE_NEXT)/g' \
+              -e 's|@''NEXT_STDINT_H''@|$(NEXT_STDINT_H)|g' \
               -e 's/@''HAVE_SYS_TYPES_H''@/$(HAVE_SYS_TYPES_H)/g' \
               -e 's/@''HAVE_INTTYPES_H''@/$(HAVE_INTTYPES_H)/g' \
               -e 's/@''HAVE_SYS_INTTYPES_H''@/$(HAVE_SYS_INTTYPES_H)/g' \
@@ -399,37 +538,210 @@ stdint.h: stdint_.h
               -e 's/@''BITSIZEOF_WINT_T''@/$(BITSIZEOF_WINT_T)/g' \
               -e 's/@''HAVE_SIGNED_WINT_T''@/$(HAVE_SIGNED_WINT_T)/g' \
               -e 's/@''WINT_T_SUFFIX''@/$(WINT_T_SUFFIX)/g' \
-              < $(srcdir)/stdint_.h; \
+              < $(srcdir)/stdint.in.h; \
         } > $@-t
         mv $@-t $@
 MOSTLYCLEANFILES += stdint.h stdint.h-t
 
-EXTRA_DIST += stdint_.h
+EXTRA_DIST += stdint.in.h
 
 ## end   gnulib module stdint
 
-## begin gnulib module strcase
+## begin gnulib module stdio
+
+BUILT_SOURCES += stdio.h
+
+# We need the following in order to create <stdio.h> when the system
+# doesn't have one that works with the given compiler.
+stdio.h: stdio.in.h
+        rm -f $@-t $@
+        { echo '/* DO NOT EDIT! GENERATED AUTOMATICALLY! */' && \
+          sed -e 's/@''INCLUDE_NEXT''@/$(INCLUDE_NEXT)/g' \
+              -e 's|@''NEXT_STDIO_H''@|$(NEXT_STDIO_H)|g' \
+              -e 's|@''GNULIB_FPRINTF_POSIX''@|$(GNULIB_FPRINTF_POSIX)|g' \
+              -e 's|@''GNULIB_PRINTF_POSIX''@|$(GNULIB_PRINTF_POSIX)|g' \
+              -e 's|@''GNULIB_SNPRINTF''@|$(GNULIB_SNPRINTF)|g' \
+              -e 's|@''GNULIB_SPRINTF_POSIX''@|$(GNULIB_SPRINTF_POSIX)|g' \
+              -e 's|@''GNULIB_VFPRINTF_POSIX''@|$(GNULIB_VFPRINTF_POSIX)|g' \
+              -e 's|@''GNULIB_VPRINTF_POSIX''@|$(GNULIB_VPRINTF_POSIX)|g' \
+              -e 's|@''GNULIB_VSNPRINTF''@|$(GNULIB_VSNPRINTF)|g' \
+              -e 's|@''GNULIB_VSPRINTF_POSIX''@|$(GNULIB_VSPRINTF_POSIX)|g' \
+              -e 's|@''GNULIB_VASPRINTF''@|$(GNULIB_VASPRINTF)|g' \
+              -e 's|@''GNULIB_FOPEN''@|$(GNULIB_FOPEN)|g' \
+              -e 's|@''GNULIB_FREOPEN''@|$(GNULIB_FREOPEN)|g' \
+              -e 's|@''GNULIB_FSEEK''@|$(GNULIB_FSEEK)|g' \
+              -e 's|@''GNULIB_FSEEKO''@|$(GNULIB_FSEEKO)|g' \
+              -e 's|@''GNULIB_FTELL''@|$(GNULIB_FTELL)|g' \
+              -e 's|@''GNULIB_FTELLO''@|$(GNULIB_FTELLO)|g' \
+              -e 's|@''GNULIB_FFLUSH''@|$(GNULIB_FFLUSH)|g' \
+              -e 's|@''GNULIB_GETDELIM''@|$(GNULIB_GETDELIM)|g' \
+              -e 's|@''GNULIB_GETLINE''@|$(GNULIB_GETLINE)|g' \
+              -e 's|@''REPLACE_FPRINTF''@|$(REPLACE_FPRINTF)|g' \
+              -e 's|@''REPLACE_VFPRINTF''@|$(REPLACE_VFPRINTF)|g' \
+              -e 's|@''REPLACE_PRINTF''@|$(REPLACE_PRINTF)|g' \
+              -e 's|@''REPLACE_VPRINTF''@|$(REPLACE_VPRINTF)|g' \
+              -e 's|@''REPLACE_SNPRINTF''@|$(REPLACE_SNPRINTF)|g' \
+              -e 's|@''HAVE_DECL_SNPRINTF''@|$(HAVE_DECL_SNPRINTF)|g' \
+              -e 's|@''REPLACE_VSNPRINTF''@|$(REPLACE_VSNPRINTF)|g' \
+              -e 's|@''HAVE_DECL_VSNPRINTF''@|$(HAVE_DECL_VSNPRINTF)|g' \
+              -e 's|@''REPLACE_SPRINTF''@|$(REPLACE_SPRINTF)|g' \
+              -e 's|@''REPLACE_VSPRINTF''@|$(REPLACE_VSPRINTF)|g' \
+              -e 's|@''HAVE_VASPRINTF''@|$(HAVE_VASPRINTF)|g' \
+              -e 's|@''REPLACE_VASPRINTF''@|$(REPLACE_VASPRINTF)|g' \
+              -e 's|@''REPLACE_FOPEN''@|$(REPLACE_FOPEN)|g' \
+              -e 's|@''REPLACE_FREOPEN''@|$(REPLACE_FREOPEN)|g' \
+              -e 's|@''REPLACE_FSEEKO''@|$(REPLACE_FSEEKO)|g' \
+              -e 's|@''REPLACE_FSEEK''@|$(REPLACE_FSEEK)|g' \
+              -e 's|@''REPLACE_FTELLO''@|$(REPLACE_FTELLO)|g' \
+              -e 's|@''REPLACE_FTELL''@|$(REPLACE_FTELL)|g' \
+              -e 's|@''REPLACE_FFLUSH''@|$(REPLACE_FFLUSH)|g' \
+              -e 's|@''HAVE_DECL_GETDELIM''@|$(HAVE_DECL_GETDELIM)|g' \
+              -e 's|@''HAVE_DECL_GETLINE''@|$(HAVE_DECL_GETLINE)|g' \
+              -e 's|@''REPLACE_GETLINE''@|$(REPLACE_GETLINE)|g' \
+              -e '/definition of GL_LINK_WARNING/r $(LINK_WARNING_H)' \
+              < $(srcdir)/stdio.in.h; \
+        } > $@-t
+        mv $@-t $@
+MOSTLYCLEANFILES += stdio.h stdio.h-t
+
+EXTRA_DIST += stdio.in.h
+
+## end   gnulib module stdio
 
+## begin gnulib module stdlib
 
-EXTRA_DIST += strcase.h strcasecmp.c strncasecmp.c
+BUILT_SOURCES += stdlib.h
+
+# We need the following in order to create <stdlib.h> when the system
+# doesn't have one that works with the given compiler.
+stdlib.h: stdlib.in.h
+        rm -f $@-t $@
+        { echo '/* DO NOT EDIT! GENERATED AUTOMATICALLY! */' && \
+          sed -e 's/@''INCLUDE_NEXT''@/$(INCLUDE_NEXT)/g' \
+              -e 's|@''NEXT_STDLIB_H''@|$(NEXT_STDLIB_H)|g' \
+              -e 's|@''GNULIB_MALLOC_POSIX''@|$(GNULIB_MALLOC_POSIX)|g' \
+              -e 's|@''GNULIB_REALLOC_POSIX''@|$(GNULIB_REALLOC_POSIX)|g' \
+              -e 's|@''GNULIB_CALLOC_POSIX''@|$(GNULIB_CALLOC_POSIX)|g' \
+              -e 's|@''GNULIB_GETSUBOPT''@|$(GNULIB_GETSUBOPT)|g' \
+              -e 's|@''GNULIB_MKDTEMP''@|$(GNULIB_MKDTEMP)|g' \
+              -e 's|@''GNULIB_MKSTEMP''@|$(GNULIB_MKSTEMP)|g' \
+              -e 's|@''GNULIB_PUTENV''@|$(GNULIB_PUTENV)|g' \
+              -e 's|@''GNULIB_SETENV''@|$(GNULIB_SETENV)|g' \
+              -e 's|@''GNULIB_UNSETENV''@|$(GNULIB_UNSETENV)|g' \
+              -e 's|@''HAVE_CALLOC_POSIX''@|$(HAVE_CALLOC_POSIX)|g' \
+              -e 's|@''HAVE_GETSUBOPT''@|$(HAVE_GETSUBOPT)|g' \
+              -e 's|@''HAVE_MALLOC_POSIX''@|$(HAVE_MALLOC_POSIX)|g' \
+              -e 's|@''HAVE_MKDTEMP''@|$(HAVE_MKDTEMP)|g' \
+              -e 's|@''HAVE_REALLOC_POSIX''@|$(HAVE_REALLOC_POSIX)|g' \
+              -e 's|@''HAVE_SETENV''@|$(HAVE_SETENV)|g' \
+              -e 's|@''HAVE_UNSETENV''@|$(HAVE_UNSETENV)|g' \
+              -e 's|@''REPLACE_MKSTEMP''@|$(REPLACE_MKSTEMP)|g' \
+              -e 's|@''REPLACE_PUTENV''@|$(REPLACE_PUTENV)|g' \
+              -e 's|@''VOID_UNSETENV''@|$(VOID_UNSETENV)|g' \
+              -e '/definition of GL_LINK_WARNING/r $(LINK_WARNING_H)' \
+              < $(srcdir)/stdlib.in.h; \
+        } > $@-t
+        mv $@-t $@
+MOSTLYCLEANFILES += stdlib.h stdlib.h-t
 
-EXTRA_libgnu_a_SOURCES += strcasecmp.c strncasecmp.c
+EXTRA_DIST += stdlib.in.h
 
-## end   gnulib module strcase
+## end   gnulib module stdlib
 
 ## begin gnulib module strdup
 
 
-EXTRA_DIST += strdup.c strdup.h
+EXTRA_DIST += strdup.c
 
 EXTRA_libgnu_a_SOURCES += strdup.c
 
 ## end   gnulib module strdup
 
+## begin gnulib module strerror
+
+
+EXTRA_DIST += strerror.c
+
+EXTRA_libgnu_a_SOURCES += strerror.c
+
+## end   gnulib module strerror
+
+## begin gnulib module string
+
+BUILT_SOURCES += string.h
+
+# We need the following in order to create <string.h> when the system
+# doesn't have one that works with the given compiler.
+string.h: string.in.h
+        rm -f $@-t $@
+        { echo '/* DO NOT EDIT! GENERATED AUTOMATICALLY! */' && \
+          sed -e 's/@''INCLUDE_NEXT''@/$(INCLUDE_NEXT)/g' \
+              -e 's|@''NEXT_STRING_H''@|$(NEXT_STRING_H)|g' \
+              -e 's|@''GNULIB_MBSLEN''@|$(GNULIB_MBSLEN)|g' \
+              -e 's|@''GNULIB_MBSNLEN''@|$(GNULIB_MBSNLEN)|g' \
+              -e 's|@''GNULIB_MBSCHR''@|$(GNULIB_MBSCHR)|g' \
+              -e 's|@''GNULIB_MBSRCHR''@|$(GNULIB_MBSRCHR)|g' \
+              -e 's|@''GNULIB_MBSSTR''@|$(GNULIB_MBSSTR)|g' \
+              -e 's|@''GNULIB_MBSCASECMP''@|$(GNULIB_MBSCASECMP)|g' \
+              -e 's|@''GNULIB_MBSNCASECMP''@|$(GNULIB_MBSNCASECMP)|g' \
+              -e 's|@''GNULIB_MBSPCASECMP''@|$(GNULIB_MBSPCASECMP)|g' \
+              -e 's|@''GNULIB_MBSCASESTR''@|$(GNULIB_MBSCASESTR)|g' \
+              -e 's|@''GNULIB_MBSCSPN''@|$(GNULIB_MBSCSPN)|g' \
+              -e 's|@''GNULIB_MBSPBRK''@|$(GNULIB_MBSPBRK)|g' \
+              -e 's|@''GNULIB_MBSSPN''@|$(GNULIB_MBSSPN)|g' \
+              -e 's|@''GNULIB_MBSSEP''@|$(GNULIB_MBSSEP)|g' \
+              -e 's|@''GNULIB_MBSTOK_R''@|$(GNULIB_MBSTOK_R)|g' \
+              -e 's|@''GNULIB_MEMMEM''@|$(GNULIB_MEMMEM)|g' \
+              -e 's|@''GNULIB_MEMPCPY''@|$(GNULIB_MEMPCPY)|g' \
+              -e 's|@''GNULIB_MEMRCHR''@|$(GNULIB_MEMRCHR)|g' \
+              -e 's|@''GNULIB_STPCPY''@|$(GNULIB_STPCPY)|g' \
+              -e 's|@''GNULIB_STPNCPY''@|$(GNULIB_STPNCPY)|g' \
+              -e 's|@''GNULIB_STRCHRNUL''@|$(GNULIB_STRCHRNUL)|g' \
+              -e 's|@''GNULIB_STRDUP''@|$(GNULIB_STRDUP)|g' \
+              -e 's|@''GNULIB_STRNDUP''@|$(GNULIB_STRNDUP)|g' \
+              -e 's|@''GNULIB_STRNLEN''@|$(GNULIB_STRNLEN)|g' \
+              -e 's|@''GNULIB_STRPBRK''@|$(GNULIB_STRPBRK)|g' \
+              -e 's|@''GNULIB_STRSEP''@|$(GNULIB_STRSEP)|g' \
+              -e 's|@''GNULIB_STRSTR''@|$(GNULIB_STRSTR)|g' \
+              -e 's|@''GNULIB_STRCASESTR''@|$(GNULIB_STRCASESTR)|g' \
+              -e 's|@''GNULIB_STRTOK_R''@|$(GNULIB_STRTOK_R)|g' \
+              -e 's|@''GNULIB_STRERROR''@|$(GNULIB_STRERROR)|g' \
+              -e 's|@''GNULIB_STRSIGNAL''@|$(GNULIB_STRSIGNAL)|g' \
+              -e 's|@''HAVE_DECL_MEMMEM''@|$(HAVE_DECL_MEMMEM)|g' \
+              -e 's|@''HAVE_MEMPCPY''@|$(HAVE_MEMPCPY)|g' \
+              -e 's|@''HAVE_DECL_MEMRCHR''@|$(HAVE_DECL_MEMRCHR)|g' \
+              -e 's|@''HAVE_STPCPY''@|$(HAVE_STPCPY)|g' \
+              -e 's|@''HAVE_STPNCPY''@|$(HAVE_STPNCPY)|g' \
+              -e 's|@''HAVE_STRCHRNUL''@|$(HAVE_STRCHRNUL)|g' \
+              -e 's|@''HAVE_DECL_STRDUP''@|$(HAVE_DECL_STRDUP)|g' \
+              -e 's|@''HAVE_STRNDUP''@|$(HAVE_STRNDUP)|g' \
+              -e 's|@''HAVE_DECL_STRNDUP''@|$(HAVE_DECL_STRNDUP)|g' \
+              -e 's|@''HAVE_DECL_STRNLEN''@|$(HAVE_DECL_STRNLEN)|g' \
+              -e 's|@''HAVE_STRPBRK''@|$(HAVE_STRPBRK)|g' \
+              -e 's|@''HAVE_STRSEP''@|$(HAVE_STRSEP)|g' \
+              -e 's|@''HAVE_STRCASESTR''@|$(HAVE_STRCASESTR)|g' \
+              -e 's|@''HAVE_DECL_STRTOK_R''@|$(HAVE_DECL_STRTOK_R)|g' \
+              -e 's|@''HAVE_DECL_STRERROR''@|$(HAVE_DECL_STRERROR)|g' \
+              -e 's|@''HAVE_DECL_STRSIGNAL''@|$(HAVE_DECL_STRSIGNAL)|g' \
+              -e 's|@''REPLACE_MEMMEM''@|$(REPLACE_MEMMEM)|g' \
+              -e 's|@''REPLACE_STRCASESTR''@|$(REPLACE_STRCASESTR)|g' \
+              -e 's|@''REPLACE_STRSTR''@|$(REPLACE_STRSTR)|g' \
+              -e 's|@''REPLACE_STRERROR''@|$(REPLACE_STRERROR)|g' \
+              -e 's|@''REPLACE_STRSIGNAL''@|$(REPLACE_STRSIGNAL)|g' \
+              -e '/definition of GL_LINK_WARNING/r $(LINK_WARNING_H)' \
+              < $(srcdir)/string.in.h; \
+        } > $@-t
+        mv $@-t $@
+MOSTLYCLEANFILES += string.h string.h-t
+
+EXTRA_DIST += string.in.h
+
+## end   gnulib module string
+
 ## begin gnulib module strndup
 
 
-EXTRA_DIST += strndup.c strndup.h
+EXTRA_DIST += strndup.c
 
 EXTRA_libgnu_a_SOURCES += strndup.c
 
@@ -438,53 +750,79 @@ EXTRA_libgnu_a_SOURCES += strndup.c
 ## begin gnulib module strnlen
 
 
-EXTRA_DIST += strnlen.c strnlen.h
+EXTRA_DIST += strnlen.c
 
 EXTRA_libgnu_a_SOURCES += strnlen.c
 
 ## end   gnulib module strnlen
 
-## begin gnulib module strnlen1
-
-libgnu_a_SOURCES += strnlen1.h strnlen1.c
-
-## end   gnulib module strnlen1
-
 ## begin gnulib module sys_socket
 
 BUILT_SOURCES += $(SYS_SOCKET_H)
 
 # We need the following in order to create <sys/socket.h> when the system
 # doesn't have one that works with the given compiler.
-sys/socket.h: socket_.h
+sys/socket.h: sys_socket.in.h
         @MKDIR_P@ sys
         { echo '/* DO NOT EDIT! GENERATED AUTOMATICALLY! */'; \
-          cat $(srcdir)/socket_.h; \
+          sed -e 's/@''INCLUDE_NEXT''@/$(INCLUDE_NEXT)/g' \
+              -e 's|@''NEXT_SYS_SOCKET_H''@|$(NEXT_SYS_SOCKET_H)|g' \
+              -e 's|@''HAVE_SYS_SOCKET_H''@|$(HAVE_SYS_SOCKET_H)|g' \
+              -e 's|@''HAVE_WINSOCK2_H''@|$(HAVE_WINSOCK2_H)|g' \
+              -e 's|@''HAVE_WS2TCPIP_H''@|$(HAVE_WS2TCPIP_H)|g' \
+              < $(srcdir)/sys_socket.in.h; \
         } > $@-t
         mv -f $@-t $@
 MOSTLYCLEANFILES += sys/socket.h sys/socket.h-t
 MOSTLYCLEANDIRS += sys
 
-EXTRA_DIST += socket_.h
+EXTRA_DIST += sys_socket.in.h
 
 ## end   gnulib module sys_socket
 
 ## begin gnulib module unistd
 
-BUILT_SOURCES += $(UNISTD_H)
+BUILT_SOURCES += unistd.h
 
 # We need the following in order to create an empty placeholder for
 # <unistd.h> when the system doesn't have one.
-unistd.h: unistd_.h
+unistd.h: unistd.in.h
         rm -f $@-t $@
         { echo '/* DO NOT EDIT! GENERATED AUTOMATICALLY! */'; \
-          sed -e 's|@''ABSOLUTE_UNISTD_H''@|$(ABSOLUTE_UNISTD_H)|g' \
-              < $(srcdir)/unistd_.h; \
+          sed -e 's|@''HAVE_UNISTD_H''@|$(HAVE_UNISTD_H)|g' \
+              -e 's/@''INCLUDE_NEXT''@/$(INCLUDE_NEXT)/g' \
+              -e 's|@''NEXT_UNISTD_H''@|$(NEXT_UNISTD_H)|g' \
+              -e 's|@''GNULIB_CHOWN''@|$(GNULIB_CHOWN)|g' \
+              -e 's|@''GNULIB_DUP2''@|$(GNULIB_DUP2)|g' \
+              -e 's|@''GNULIB_FCHDIR''@|$(GNULIB_FCHDIR)|g' \
+              -e 's|@''GNULIB_FTRUNCATE''@|$(GNULIB_FTRUNCATE)|g' \
+              -e 's|@''GNULIB_GETCWD''@|$(GNULIB_GETCWD)|g' \
+              -e 's|@''GNULIB_GETLOGIN_R''@|$(GNULIB_GETLOGIN_R)|g' \
+              -e 's|@''GNULIB_GETPAGESIZE''@|$(GNULIB_GETPAGESIZE)|g' \
+              -e 's|@''GNULIB_LCHOWN''@|$(GNULIB_LCHOWN)|g' \
+              -e 's|@''GNULIB_LSEEK''@|$(GNULIB_LSEEK)|g' \
+              -e 's|@''GNULIB_READLINK''@|$(GNULIB_READLINK)|g' \
+              -e 's|@''GNULIB_SLEEP''@|$(GNULIB_SLEEP)|g' \
+              -e 's|@''HAVE_DUP2''@|$(HAVE_DUP2)|g' \
+              -e 's|@''HAVE_FTRUNCATE''@|$(HAVE_FTRUNCATE)|g' \
+              -e 's|@''HAVE_GETPAGESIZE''@|$(HAVE_GETPAGESIZE)|g' \
+              -e 's|@''HAVE_READLINK''@|$(HAVE_READLINK)|g' \
+              -e 's|@''HAVE_SLEEP''@|$(HAVE_SLEEP)|g' \
+              -e 's|@''HAVE_DECL_GETLOGIN_R''@|$(HAVE_DECL_GETLOGIN_R)|g' \
+              -e 's|@''HAVE_OS_H''@|$(HAVE_OS_H)|g' \
+              -e 's|@''HAVE_SYS_PARAM_H''@|$(HAVE_SYS_PARAM_H)|g' \
+              -e 's|@''REPLACE_CHOWN''@|$(REPLACE_CHOWN)|g' \
+              -e 's|@''REPLACE_FCHDIR''@|$(REPLACE_FCHDIR)|g' \
+              -e 's|@''REPLACE_GETCWD''@|$(REPLACE_GETCWD)|g' \
+              -e 's|@''REPLACE_GETPAGESIZE''@|$(REPLACE_GETPAGESIZE)|g' \
+              -e 's|@''REPLACE_LCHOWN''@|$(REPLACE_LCHOWN)|g' \
+              -e 's|@''REPLACE_LSEEK''@|$(REPLACE_LSEEK)|g' \
+              < $(srcdir)/unistd.in.h; \
         } > $@-t
         mv $@-t $@
 MOSTLYCLEANFILES += unistd.h unistd.h-t
 
-EXTRA_DIST += unistd_.h
+EXTRA_DIST += unistd.in.h
 
 ## end   gnulib module unistd
 
@@ -500,7 +838,7 @@ EXTRA_libgnu_a_SOURCES += dup-safer.c fd-safer.c pipe-safer.c
 ## begin gnulib module vasnprintf
 
 
-EXTRA_DIST += asnprintf.c printf-args.c printf-args.h printf-parse.c printf-parse.h vasnprintf.c vasnprintf.h
+EXTRA_DIST += asnprintf.c float+.h printf-args.c printf-args.h printf-parse.c printf-parse.h vasnprintf.c vasnprintf.h
 
 EXTRA_libgnu_a_SOURCES += asnprintf.c printf-args.c printf-parse.c vasnprintf.c
 
@@ -509,7 +847,7 @@ EXTRA_libgnu_a_SOURCES += asnprintf.c printf-args.c printf-parse.c vasnprintf.c
 ## begin gnulib module vasprintf
 
 
-EXTRA_DIST += asprintf.c vasprintf.c vasprintf.h
+EXTRA_DIST += asprintf.c vasprintf.c
 
 EXTRA_libgnu_a_SOURCES += asprintf.c vasprintf.c
 
@@ -518,7 +856,7 @@ EXTRA_libgnu_a_SOURCES += asprintf.c vasprintf.c
 ## begin gnulib module vsnprintf
 
 
-EXTRA_DIST += vsnprintf.c vsnprintf.h
+EXTRA_DIST += vsnprintf.c
 
 EXTRA_libgnu_a_SOURCES += vsnprintf.c
 
@@ -530,16 +868,22 @@ BUILT_SOURCES += $(WCHAR_H)
 
 # We need the following in order to create <wchar.h> when the system
 # version does not work standalone.
-wchar.h: wchar_.h
+wchar.h: wchar.in.h
         rm -f $@-t $@
         { echo '/* DO NOT EDIT! GENERATED AUTOMATICALLY! */'; \
-          sed -e 's|@''ABSOLUTE_WCHAR_H''@|$(ABSOLUTE_WCHAR_H)|g' \
-            < $(srcdir)/wchar_.h; \
+          sed -e 's/@''INCLUDE_NEXT''@/$(INCLUDE_NEXT)/g' \
+              -e 's|@''NEXT_WCHAR_H''@|$(NEXT_WCHAR_H)|g' \
+              -e 's/@''HAVE_WCHAR_H''@/$(HAVE_WCHAR_H)/g' \
+              -e 's|@''GNULIB_WCWIDTH''@|$(GNULIB_WCWIDTH)|g' \
+              -e 's|@''HAVE_DECL_WCWIDTH''@|$(HAVE_DECL_WCWIDTH)|g' \
+              -e 's|@''REPLACE_WCWIDTH''@|$(REPLACE_WCWIDTH)|g' \
+              -e '/definition of GL_LINK_WARNING/r $(LINK_WARNING_H)' \
+            < $(srcdir)/wchar.in.h; \
         } > $@-t
         mv $@-t $@
 MOSTLYCLEANFILES += wchar.h wchar.h-t
 
-EXTRA_DIST += wchar_.h
+EXTRA_DIST += wchar.in.h
 
 ## end   gnulib module wchar
 
@@ -549,28 +893,23 @@ BUILT_SOURCES += $(WCTYPE_H)
 
 # We need the following in order to create <wctype.h> when the system
 # doesn't have one that works with the given compiler.
-wctype.h: wctype_.h
+wctype.h: wctype.in.h
         rm -f $@-t $@
         { echo '/* DO NOT EDIT! GENERATED AUTOMATICALLY! */'; \
           sed -e 's/@''HAVE_WCTYPE_H''@/$(HAVE_WCTYPE_H)/g' \
-              -e 's|@''ABSOLUTE_WCTYPE_H''@|$(ABSOLUTE_WCTYPE_H)|g' \
-              -e 's/@''HAVE_WCTYPE_CTMP_BUG''@/$(HAVE_WCTYPE_CTMP_BUG)/g' \
+              -e 's/@''INCLUDE_NEXT''@/$(INCLUDE_NEXT)/g' \
+              -e 's|@''NEXT_WCTYPE_H''@|$(NEXT_WCTYPE_H)|g' \
+              -e 's/@''HAVE_ISWCNTRL''@/$(HAVE_ISWCNTRL)/g' \
               -e 's/@''HAVE_WINT_T''@/$(HAVE_WINT_T)/g' \
-              < $(srcdir)/wctype_.h; \
+              < $(srcdir)/wctype.in.h; \
         } > $@-t
         mv $@-t $@
 MOSTLYCLEANFILES += wctype.h wctype.h-t
 
-EXTRA_DIST += wctype_.h
+EXTRA_DIST += wctype.in.h
 
 ## end   gnulib module wctype
 
-## begin gnulib module wcwidth
-
-libgnu_a_SOURCES += wcwidth.h
-
-## end   gnulib module wcwidth
-
 ## begin gnulib module xalloc
 
 
@@ -604,4 +943,5 @@ mostlyclean-local: mostlyclean-generic
           if test -n "$$dir" && test -d $$dir; then \
             echo "rmdir $$dir"; rmdir $$dir; \
           fi; \
-        done
+        done; \
+        :
diff --git a/gl/alloca.c b/gl/alloca.c
index 3a1f4e27..ff1cb7e9 100644
--- a/gl/alloca.c
+++ b/gl/alloca.c
@@ -486,4 +486,4 @@ i00afunc (long address)
 #  endif /* CRAY */
 
 # endif /* no alloca */
-#endif /* not GCC version 2 */
+#endif /* not GCC version 3 */
diff --git a/gl/alloca_.h b/gl/alloca.in.h
index dd0b3e98..82782884 100644
--- a/gl/alloca_.h
+++ b/gl/alloca.in.h
@@ -1,11 +1,11 @@
 /* Memory allocation on the stack.
 
-   Copyright (C) 1995, 1999, 2001, 2002, 2003, 2004, 2006 Free Software
+   Copyright (C) 1995, 1999, 2001-2004, 2006-2007 Free Software
    Foundation, Inc.
 
    This program is free software; you can redistribute it and/or modify it
    under the terms of the GNU General Public License as published
-   by the Free Software Foundation; either version 2, or (at your option)
+   by the Free Software Foundation; either version 3, or (at your option)
    any later version.
 
    This program is distributed in the hope that it will be useful,
@@ -20,8 +20,8 @@
 
 /* Avoid using the symbol _ALLOCA_H here, as Bison assumes _ALLOCA_H
    means there is a real alloca function.  */
-#ifndef _GNULIB_ALLOCA_H
-# define _GNULIB_ALLOCA_H
+#ifndef _GL_ALLOCA_H
+#define _GL_ALLOCA_H
 
 /* alloca (N) returns a pointer to N bytes of memory
    allocated on the stack, which will last until the function returns.
@@ -51,4 +51,4 @@ void *alloca (size_t);
 # endif
 #endif
 
-#endif /* _GNULIB_ALLOCA_H */
+#endif /* _GL_ALLOCA_H */
diff --git a/gl/asnprintf.c b/gl/asnprintf.c
index 26c3988b..bf2abf3c 100644
--- a/gl/asnprintf.c
+++ b/gl/asnprintf.c
@@ -3,7 +3,7 @@
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
+   the Free Software Foundation; either version 3, or (at your option)
    any later version.
 
    This program is distributed in the hope that it will be useful,
diff --git a/gl/asprintf.c b/gl/asprintf.c
index 29ac6cf2..0bbecf81 100644
--- a/gl/asprintf.c
+++ b/gl/asprintf.c
@@ -1,9 +1,9 @@
 /* Formatted output to strings.
-   Copyright (C) 1999, 2002, 2006 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002, 2006-2007 Free Software Foundation, Inc.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
+   the Free Software Foundation; either version 3, or (at your option)
    any later version.
 
    This program is distributed in the hope that it will be useful,
@@ -18,7 +18,11 @@
 #include <config.h>
 
 /* Specification.  */
-#include "vasprintf.h"
+#ifdef IN_LIBASPRINTF
+# include "vasprintf.h"
+#else
+# include <stdio.h>
+#endif
 
 #include <stdarg.h>
 
diff --git a/gl/basename.c b/gl/basename.c
index fbe17ff9..426ed40f 100644
--- a/gl/basename.c
+++ b/gl/basename.c
@@ -3,10 +3,10 @@
    Copyright (C) 1990, 1998, 1999, 2000, 2001, 2003, 2004, 2005, 2006 Free
    Software Foundation, Inc.
 
-   This program is free software; you can redistribute it and/or modify
+   This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -14,8 +14,7 @@
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software Foundation,
-   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/gl/c-strtod.c b/gl/c-strtod.c
index 2234ed0f..95624ccc 100644
--- a/gl/c-strtod.c
+++ b/gl/c-strtod.c
@@ -2,10 +2,10 @@
 
    Copyright (C) 2003, 2004, 2006 Free Software Foundation, Inc.
 
-   This program is free software; you can redistribute it and/or modify
+   This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -13,8 +13,7 @@
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software Foundation,
-   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 /* Written by Paul Eggert.  */
 
diff --git a/gl/cloexec.c b/gl/cloexec.c
index 6480006a..ff8105ba 100644
--- a/gl/cloexec.c
+++ b/gl/cloexec.c
@@ -2,10 +2,10 @@
 
    Copyright (C) 1991, 2004, 2005, 2006 Free Software Foundation, Inc.
 
-   This program is free software; you can redistribute it and/or modify
+   This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -13,8 +13,7 @@
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software Foundation,
-   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
    The code is taken from glibc/manual/llio.texi  */
 
diff --git a/gl/config.charset b/gl/config.charset
new file mode 100755
index 00000000..c2337887
--- /dev/null
+++ b/gl/config.charset
@@ -0,0 +1,649 @@
+#! /bin/sh
+# Output a system dependent table of character encoding aliases.
+#
+#   Copyright (C) 2000-2004, 2006-2007 Free Software Foundation, Inc.
+#
+#   This program is free software; you can redistribute it and/or modify
+#   it under the terms of the GNU General Public License as published by
+#   the Free Software Foundation; either version 3, or (at your option)
+#   any later version.
+#
+#   This program is distributed in the hope that it will be useful,
+#   but WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#   GNU General Public License for more details.
+#
+#   You should have received a copy of the GNU General Public License along
+#   with this program; if not, write to the Free Software Foundation,
+#   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# The table consists of lines of the form
+#    ALIAS  CANONICAL
+#
+# ALIAS is the (system dependent) result of "nl_langinfo (CODESET)".
+# ALIAS is compared in a case sensitive way.
+#
+# CANONICAL is the GNU canonical name for this character encoding.
+# It must be an encoding supported by libiconv. Support by GNU libc is
+# also desirable. CANONICAL is case insensitive. Usually an upper case
+# MIME charset name is preferred.
+# The current list of GNU canonical charset names is as follows.
+#
+#       name              MIME?             used by which systems
+#   ASCII, ANSI_X3.4-1968       glibc solaris freebsd netbsd darwin
+#   ISO-8859-1              Y   glibc aix hpux irix osf solaris freebsd netbsd openbsd darwin
+#   ISO-8859-2              Y   glibc aix hpux irix osf solaris freebsd netbsd openbsd darwin
+#   ISO-8859-3              Y   glibc solaris
+#   ISO-8859-4              Y   osf solaris freebsd netbsd openbsd darwin
+#   ISO-8859-5              Y   glibc aix hpux irix osf solaris freebsd netbsd openbsd darwin
+#   ISO-8859-6              Y   glibc aix hpux solaris
+#   ISO-8859-7              Y   glibc aix hpux irix osf solaris netbsd openbsd darwin
+#   ISO-8859-8              Y   glibc aix hpux osf solaris
+#   ISO-8859-9              Y   glibc aix hpux irix osf solaris darwin
+#   ISO-8859-13                 glibc netbsd openbsd darwin
+#   ISO-8859-14                 glibc
+#   ISO-8859-15                 glibc aix osf solaris freebsd netbsd openbsd darwin
+#   KOI8-R                  Y   glibc solaris freebsd netbsd openbsd darwin
+#   KOI8-U                  Y   glibc freebsd netbsd openbsd darwin
+#   KOI8-T                      glibc
+#   CP437                       dos
+#   CP775                       dos
+#   CP850                       aix osf dos
+#   CP852                       dos
+#   CP855                       dos
+#   CP856                       aix
+#   CP857                       dos
+#   CP861                       dos
+#   CP862                       dos
+#   CP864                       dos
+#   CP865                       dos
+#   CP866                       freebsd netbsd openbsd darwin dos
+#   CP869                       dos
+#   CP874                       woe32 dos
+#   CP922                       aix
+#   CP932                       aix woe32 dos
+#   CP943                       aix
+#   CP949                       osf woe32 dos
+#   CP950                       woe32 dos
+#   CP1046                      aix
+#   CP1124                      aix
+#   CP1125                      dos
+#   CP1129                      aix
+#   CP1250                      woe32
+#   CP1251                      glibc solaris netbsd openbsd darwin woe32
+#   CP1252                      aix woe32
+#   CP1253                      woe32
+#   CP1254                      woe32
+#   CP1255                      glibc woe32
+#   CP1256                      woe32
+#   CP1257                      woe32
+#   GB2312                  Y   glibc aix hpux irix solaris freebsd netbsd darwin
+#   EUC-JP                  Y   glibc aix hpux irix osf solaris freebsd netbsd darwin
+#   EUC-KR                  Y   glibc aix hpux irix osf solaris freebsd netbsd darwin
+#   EUC-TW                      glibc aix hpux irix osf solaris netbsd
+#   BIG5                    Y   glibc aix hpux osf solaris freebsd netbsd darwin
+#   BIG5-HKSCS                  glibc solaris
+#   GBK                         glibc aix osf solaris woe32 dos
+#   GB18030                     glibc solaris netbsd
+#   SHIFT_JIS               Y   hpux osf solaris freebsd netbsd darwin
+#   JOHAB                       glibc solaris woe32
+#   TIS-620                     glibc aix hpux osf solaris
+#   VISCII                  Y   glibc
+#   TCVN5712-1                  glibc
+#   GEORGIAN-PS                 glibc
+#   HP-ROMAN8                   hpux
+#   HP-ARABIC8                  hpux
+#   HP-GREEK8                   hpux
+#   HP-HEBREW8                  hpux
+#   HP-TURKISH8                 hpux
+#   HP-KANA8                    hpux
+#   DEC-KANJI                   osf
+#   DEC-HANYU                   osf
+#   UTF-8                   Y   glibc aix hpux osf solaris netbsd darwin
+#
+# Note: Names which are not marked as being a MIME name should not be used in
+# Internet protocols for information interchange (mail, news, etc.).
+#
+# Note: ASCII and ANSI_X3.4-1968 are synonymous canonical names. Applications
+# must understand both names and treat them as equivalent.
+#
+# The first argument passed to this file is the canonical host specification,
+#    CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM
+# or
+#    CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM
+
+host="$1"
+os=`echo "$host" | sed -e 's/^[^-]*-[^-]*-\(.*\)$/\1/'`
+echo "# This file contains a table of character encoding aliases,"
+echo "# suitable for operating system '${os}'."
+echo "# It was automatically generated from config.charset."
+# List of references, updated during installation:
+echo "# Packages using this file: "
+case "$os" in
+    linux-gnulibc1*)
+        # Linux libc5 doesn't have nl_langinfo(CODESET); therefore
+        # localcharset.c falls back to using the full locale name
+        # from the environment variables.
+        echo "C ASCII"
+        echo "POSIX ASCII"
+        for l in af af_ZA ca ca_ES da da_DK de de_AT de_BE de_CH de_DE de_LU \
+                 en en_AU en_BW en_CA en_DK en_GB en_IE en_NZ en_US en_ZA \
+                 en_ZW es es_AR es_BO es_CL es_CO es_DO es_EC es_ES es_GT \
+                 es_HN es_MX es_PA es_PE es_PY es_SV es_US es_UY es_VE et \
+                 et_EE eu eu_ES fi fi_FI fo fo_FO fr fr_BE fr_CA fr_CH fr_FR \
+                 fr_LU ga ga_IE gl gl_ES id id_ID in in_ID is is_IS it it_CH \
+                 it_IT kl kl_GL nl nl_BE nl_NL no no_NO pt pt_BR pt_PT sv \
+                 sv_FI sv_SE; do
+          echo "$l ISO-8859-1"
+          echo "$l.iso-8859-1 ISO-8859-1"
+          echo "$l.iso-8859-15 ISO-8859-15"
+          echo "$l.iso-8859-15@euro ISO-8859-15"
+          echo "$l@euro ISO-8859-15"
+          echo "$l.cp-437 CP437"
+          echo "$l.cp-850 CP850"
+          echo "$l.cp-1252 CP1252"
+          echo "$l.cp-1252@euro CP1252"
+          #echo "$l.atari-st ATARI-ST" # not a commonly used encoding
+          echo "$l.utf-8 UTF-8"
+          echo "$l.utf-8@euro UTF-8"
+        done
+        for l in cs cs_CZ hr hr_HR hu hu_HU pl pl_PL ro ro_RO sk sk_SK sl \
+                 sl_SI sr sr_CS sr_YU; do
+          echo "$l ISO-8859-2"
+          echo "$l.iso-8859-2 ISO-8859-2"
+          echo "$l.cp-852 CP852"
+          echo "$l.cp-1250 CP1250"
+          echo "$l.utf-8 UTF-8"
+        done
+        for l in mk mk_MK ru ru_RU; do
+          echo "$l ISO-8859-5"
+          echo "$l.iso-8859-5 ISO-8859-5"
+          echo "$l.koi8-r KOI8-R"
+          echo "$l.cp-866 CP866"
+          echo "$l.cp-1251 CP1251"
+          echo "$l.utf-8 UTF-8"
+        done
+        for l in ar ar_SA; do
+          echo "$l ISO-8859-6"
+          echo "$l.iso-8859-6 ISO-8859-6"
+          echo "$l.cp-864 CP864"
+          #echo "$l.cp-868 CP868" # not a commonly used encoding
+          echo "$l.cp-1256 CP1256"
+          echo "$l.utf-8 UTF-8"
+        done
+        for l in el el_GR gr gr_GR; do
+          echo "$l ISO-8859-7"
+          echo "$l.iso-8859-7 ISO-8859-7"
+          echo "$l.cp-869 CP869"
+          echo "$l.cp-1253 CP1253"
+          echo "$l.cp-1253@euro CP1253"
+          echo "$l.utf-8 UTF-8"
+          echo "$l.utf-8@euro UTF-8"
+        done
+        for l in he he_IL iw iw_IL; do
+          echo "$l ISO-8859-8"
+          echo "$l.iso-8859-8 ISO-8859-8"
+          echo "$l.cp-862 CP862"
+          echo "$l.cp-1255 CP1255"
+          echo "$l.utf-8 UTF-8"
+        done
+        for l in tr tr_TR; do
+          echo "$l ISO-8859-9"
+          echo "$l.iso-8859-9 ISO-8859-9"
+          echo "$l.cp-857 CP857"
+          echo "$l.cp-1254 CP1254"
+          echo "$l.utf-8 UTF-8"
+        done
+        for l in lt lt_LT lv lv_LV; do
+          #echo "$l BALTIC" # not a commonly used encoding, wrong encoding name
+          echo "$l ISO-8859-13"
+        done
+        for l in ru_UA uk uk_UA; do
+          echo "$l KOI8-U"
+        done
+        for l in zh zh_CN; do
+          #echo "$l GB_2312-80" # not a commonly used encoding, wrong encoding name
+          echo "$l GB2312"
+        done
+        for l in ja ja_JP ja_JP.EUC; do
+          echo "$l EUC-JP"
+        done
+        for l in ko ko_KR; do
+          echo "$l EUC-KR"
+        done
+        for l in th th_TH; do
+          echo "$l TIS-620"
+        done
+        for l in fa fa_IR; do
+          #echo "$l ISIRI-3342" # a broken encoding
+          echo "$l.utf-8 UTF-8"
+        done
+        ;;
+    linux* | *-gnu*)
+        # With glibc-2.1 or newer, we don't need any canonicalization,
+        # because glibc has iconv and both glibc and libiconv support all
+        # GNU canonical names directly. Therefore, the Makefile does not
+        # need to install the alias file at all.
+        # The following applies only to glibc-2.0.x and older libcs.
+        echo "ISO_646.IRV:1983 ASCII"
+        ;;
+    aix*)
+        echo "ISO8859-1 ISO-8859-1"
+        echo "ISO8859-2 ISO-8859-2"
+        echo "ISO8859-5 ISO-8859-5"
+        echo "ISO8859-6 ISO-8859-6"
+        echo "ISO8859-7 ISO-8859-7"
+        echo "ISO8859-8 ISO-8859-8"
+        echo "ISO8859-9 ISO-8859-9"
+        echo "ISO8859-15 ISO-8859-15"
+        echo "IBM-850 CP850"
+        echo "IBM-856 CP856"
+        echo "IBM-921 ISO-8859-13"
+        echo "IBM-922 CP922"
+        echo "IBM-932 CP932"
+        echo "IBM-943 CP943"
+        echo "IBM-1046 CP1046"
+        echo "IBM-1124 CP1124"
+        echo "IBM-1129 CP1129"
+        echo "IBM-1252 CP1252"
+        echo "IBM-eucCN GB2312"
+        echo "IBM-eucJP EUC-JP"
+        echo "IBM-eucKR EUC-KR"
+        echo "IBM-eucTW EUC-TW"
+        echo "big5 BIG5"
+        echo "GBK GBK"
+        echo "TIS-620 TIS-620"
+        echo "UTF-8 UTF-8"
+        ;;
+    hpux*)
+        echo "iso88591 ISO-8859-1"
+        echo "iso88592 ISO-8859-2"
+        echo "iso88595 ISO-8859-5"
+        echo "iso88596 ISO-8859-6"
+        echo "iso88597 ISO-8859-7"
+        echo "iso88598 ISO-8859-8"
+        echo "iso88599 ISO-8859-9"
+        echo "iso885915 ISO-8859-15"
+        echo "roman8 HP-ROMAN8"
+        echo "arabic8 HP-ARABIC8"
+        echo "greek8 HP-GREEK8"
+        echo "hebrew8 HP-HEBREW8"
+        echo "turkish8 HP-TURKISH8"
+        echo "kana8 HP-KANA8"
+        echo "tis620 TIS-620"
+        echo "big5 BIG5"
+        echo "eucJP EUC-JP"
+        echo "eucKR EUC-KR"
+        echo "eucTW EUC-TW"
+        echo "hp15CN GB2312"
+        #echo "ccdc ?" # what is this?
+        echo "SJIS SHIFT_JIS"
+        echo "utf8 UTF-8"
+        ;;
+    irix*)
+        echo "ISO8859-1 ISO-8859-1"
+        echo "ISO8859-2 ISO-8859-2"
+        echo "ISO8859-5 ISO-8859-5"
+        echo "ISO8859-7 ISO-8859-7"
+        echo "ISO8859-9 ISO-8859-9"
+        echo "eucCN GB2312"
+        echo "eucJP EUC-JP"
+        echo "eucKR EUC-KR"
+        echo "eucTW EUC-TW"
+        ;;
+    osf*)
+        echo "ISO8859-1 ISO-8859-1"
+        echo "ISO8859-2 ISO-8859-2"
+        echo "ISO8859-4 ISO-8859-4"
+        echo "ISO8859-5 ISO-8859-5"
+        echo "ISO8859-7 ISO-8859-7"
+        echo "ISO8859-8 ISO-8859-8"
+        echo "ISO8859-9 ISO-8859-9"
+        echo "ISO8859-15 ISO-8859-15"
+        echo "cp850 CP850"
+        echo "big5 BIG5"
+        echo "dechanyu DEC-HANYU"
+        echo "dechanzi GB2312"
+        echo "deckanji DEC-KANJI"
+        echo "deckorean EUC-KR"
+        echo "eucJP EUC-JP"
+        echo "eucKR EUC-KR"
+        echo "eucTW EUC-TW"
+        echo "GBK GBK"
+        echo "KSC5601 CP949"
+        echo "sdeckanji EUC-JP"
+        echo "SJIS SHIFT_JIS"
+        echo "TACTIS TIS-620"
+        echo "UTF-8 UTF-8"
+        ;;
+    solaris*)
+        echo "646 ASCII"
+        echo "ISO8859-1 ISO-8859-1"
+        echo "ISO8859-2 ISO-8859-2"
+        echo "ISO8859-3 ISO-8859-3"
+        echo "ISO8859-4 ISO-8859-4"
+        echo "ISO8859-5 ISO-8859-5"
+        echo "ISO8859-6 ISO-8859-6"
+        echo "ISO8859-7 ISO-8859-7"
+        echo "ISO8859-8 ISO-8859-8"
+        echo "ISO8859-9 ISO-8859-9"
+        echo "ISO8859-15 ISO-8859-15"
+        echo "koi8-r KOI8-R"
+        echo "ansi-1251 CP1251"
+        echo "BIG5 BIG5"
+        echo "Big5-HKSCS BIG5-HKSCS"
+        echo "gb2312 GB2312"
+        echo "GBK GBK"
+        echo "GB18030 GB18030"
+        echo "cns11643 EUC-TW"
+        echo "5601 EUC-KR"
+        echo "ko_KR.johap92 JOHAB"
+        echo "eucJP EUC-JP"
+        echo "PCK SHIFT_JIS"
+        echo "TIS620.2533 TIS-620"
+        #echo "sun_eu_greek ?" # what is this?
+        echo "UTF-8 UTF-8"
+        ;;
+    freebsd* | os2*)
+        # FreeBSD 4.2 doesn't have nl_langinfo(CODESET); therefore
+        # localcharset.c falls back to using the full locale name
+        # from the environment variables.
+        # Likewise for OS/2. OS/2 has XFree86 just like FreeBSD. Just
+        # reuse FreeBSD's locale data for OS/2.
+        echo "C ASCII"
+        echo "US-ASCII ASCII"
+        for l in la_LN lt_LN; do
+          echo "$l.ASCII ASCII"
+        done
+        for l in da_DK de_AT de_CH de_DE en_AU en_CA en_GB en_US es_ES \
+                 fi_FI fr_BE fr_CA fr_CH fr_FR is_IS it_CH it_IT la_LN \
+                 lt_LN nl_BE nl_NL no_NO pt_PT sv_SE; do
+          echo "$l.ISO_8859-1 ISO-8859-1"
+          echo "$l.DIS_8859-15 ISO-8859-15"
+        done
+        for l in cs_CZ hr_HR hu_HU la_LN lt_LN pl_PL sl_SI; do
+          echo "$l.ISO_8859-2 ISO-8859-2"
+        done
+        for l in la_LN lt_LT; do
+          echo "$l.ISO_8859-4 ISO-8859-4"
+        done
+        for l in ru_RU ru_SU; do
+          echo "$l.KOI8-R KOI8-R"
+          echo "$l.ISO_8859-5 ISO-8859-5"
+          echo "$l.CP866 CP866"
+        done
+        echo "uk_UA.KOI8-U KOI8-U"
+        echo "zh_TW.BIG5 BIG5"
+        echo "zh_TW.Big5 BIG5"
+        echo "zh_CN.EUC GB2312"
+        echo "ja_JP.EUC EUC-JP"
+        echo "ja_JP.SJIS SHIFT_JIS"
+        echo "ja_JP.Shift_JIS SHIFT_JIS"
+        echo "ko_KR.EUC EUC-KR"
+        ;;
+    netbsd*)
+        echo "646 ASCII"
+        echo "ISO8859-1 ISO-8859-1"
+        echo "ISO8859-2 ISO-8859-2"
+        echo "ISO8859-4 ISO-8859-4"
+        echo "ISO8859-5 ISO-8859-5"
+        echo "ISO8859-7 ISO-8859-7"
+        echo "ISO8859-13 ISO-8859-13"
+        echo "ISO8859-15 ISO-8859-15"
+        echo "eucCN GB2312"
+        echo "eucJP EUC-JP"
+        echo "eucKR EUC-KR"
+        echo "eucTW EUC-TW"
+        echo "BIG5 BIG5"
+        echo "SJIS SHIFT_JIS"
+        ;;
+    openbsd*)
+        echo "646 ASCII"
+        echo "ISO8859-1 ISO-8859-1"
+        echo "ISO8859-2 ISO-8859-2"
+        echo "ISO8859-4 ISO-8859-4"
+        echo "ISO8859-5 ISO-8859-5"
+        echo "ISO8859-7 ISO-8859-7"
+        echo "ISO8859-13 ISO-8859-13"
+        echo "ISO8859-15 ISO-8859-15"
+        ;;
+    darwin[56]*)
+        # Darwin 6.8 doesn't have nl_langinfo(CODESET); therefore
+        # localcharset.c falls back to using the full locale name
+        # from the environment variables.
+        echo "C ASCII"
+        for l in en_AU en_CA en_GB en_US la_LN; do
+          echo "$l.US-ASCII ASCII"
+        done
+        for l in da_DK de_AT de_CH de_DE en_AU en_CA en_GB en_US es_ES \
+                 fi_FI fr_BE fr_CA fr_CH fr_FR is_IS it_CH it_IT nl_BE \
+                 nl_NL no_NO pt_PT sv_SE; do
+          echo "$l ISO-8859-1"
+          echo "$l.ISO8859-1 ISO-8859-1"
+          echo "$l.ISO8859-15 ISO-8859-15"
+        done
+        for l in la_LN; do
+          echo "$l.ISO8859-1 ISO-8859-1"
+          echo "$l.ISO8859-15 ISO-8859-15"
+        done
+        for l in cs_CZ hr_HR hu_HU la_LN pl_PL sl_SI; do
+          echo "$l.ISO8859-2 ISO-8859-2"
+        done
+        for l in la_LN lt_LT; do
+          echo "$l.ISO8859-4 ISO-8859-4"
+        done
+        for l in ru_RU; do
+          echo "$l.KOI8-R KOI8-R"
+          echo "$l.ISO8859-5 ISO-8859-5"
+          echo "$l.CP866 CP866"
+        done
+        for l in bg_BG; do
+          echo "$l.CP1251 CP1251"
+        done
+        echo "uk_UA.KOI8-U KOI8-U"
+        echo "zh_TW.BIG5 BIG5"
+        echo "zh_TW.Big5 BIG5"
+        echo "zh_CN.EUC GB2312"
+        echo "ja_JP.EUC EUC-JP"
+        echo "ja_JP.SJIS SHIFT_JIS"
+        echo "ko_KR.EUC EUC-KR"
+        ;;
+    darwin*)
+        # Darwin 7.5 has nl_langinfo(CODESET), but it is useless:
+        # - It returns the empty string when LANG is set to a locale of the
+        #   form ll_CC, although ll_CC/LC_CTYPE is a symlink to an UTF-8
+        #   LC_CTYPE file.
+        # - The environment variables LANG, LC_CTYPE, LC_ALL are not set by
+        #   the system; nl_langinfo(CODESET) returns "US-ASCII" in this case.
+        # - The documentation says:
+        #     "... all code that calls BSD system routines should ensure
+        #      that the const *char parameters of these routines are in UTF-8
+        #      encoding. All BSD system functions expect their string
+        #      parameters to be in UTF-8 encoding and nothing else."
+        #   It also says
+        #     "An additional caveat is that string parameters for files,
+        #      paths, and other file-system entities must be in canonical
+        #      UTF-8. In a canonical UTF-8 Unicode string, all decomposable
+        #      characters are decomposed ..."
+        #   but this is not true: You can pass non-decomposed UTF-8 strings
+        #   to file system functions, and it is the OS which will convert
+        #   them to decomposed UTF-8 before accessing the file system.
+        # - The Apple Terminal application displays UTF-8 by default.
+        # - However, other applications are free to use different encodings:
+        #   - xterm uses ISO-8859-1 by default.
+        #   - TextEdit uses MacRoman by default.
+        # We prefer UTF-8 over decomposed UTF-8-MAC because one should
+        # minimize the use of decomposed Unicode. Unfortunately, through the
+        # Darwin file system, decomposed UTF-8 strings are leaked into user
+        # space nevertheless.
+        echo "* UTF-8"
+        ;;
+    beos*)
+        # BeOS has a single locale, and it has UTF-8 encoding.
+        echo "* UTF-8"
+        ;;
+    msdosdjgpp*)
+        # DJGPP 2.03 doesn't have nl_langinfo(CODESET); therefore
+        # localcharset.c falls back to using the full locale name
+        # from the environment variables.
+        echo "#"
+        echo "# The encodings given here may not all be correct."
+        echo "# If you find that the encoding given for your language and"
+        echo "# country is not the one your DOS machine actually uses, just"
+        echo "# correct it in this file, and send a mail to"
+        echo "# Juan Manuel Guerrero <juan.guerrero@gmx.de>"
+        echo "# and Bruno Haible <bruno@clisp.org>."
+        echo "#"
+        echo "C ASCII"
+        # ISO-8859-1 languages
+        echo "ca CP850"
+        echo "ca_ES CP850"
+        echo "da CP865"    # not CP850 ??
+        echo "da_DK CP865" # not CP850 ??
+        echo "de CP850"
+        echo "de_AT CP850"
+        echo "de_CH CP850"
+        echo "de_DE CP850"
+        echo "en CP850"
+        echo "en_AU CP850" # not CP437 ??
+        echo "en_CA CP850"
+        echo "en_GB CP850"
+        echo "en_NZ CP437"
+        echo "en_US CP437"
+        echo "en_ZA CP850" # not CP437 ??
+        echo "es CP850"
+        echo "es_AR CP850"
+        echo "es_BO CP850"
+        echo "es_CL CP850"
+        echo "es_CO CP850"
+        echo "es_CR CP850"
+        echo "es_CU CP850"
+        echo "es_DO CP850"
+        echo "es_EC CP850"
+        echo "es_ES CP850"
+        echo "es_GT CP850"
+        echo "es_HN CP850"
+        echo "es_MX CP850"
+        echo "es_NI CP850"
+        echo "es_PA CP850"
+        echo "es_PY CP850"
+        echo "es_PE CP850"
+        echo "es_SV CP850"
+        echo "es_UY CP850"
+        echo "es_VE CP850"
+        echo "et CP850"
+        echo "et_EE CP850"
+        echo "eu CP850"
+        echo "eu_ES CP850"
+        echo "fi CP850"
+        echo "fi_FI CP850"
+        echo "fr CP850"
+        echo "fr_BE CP850"
+        echo "fr_CA CP850"
+        echo "fr_CH CP850"
+        echo "fr_FR CP850"
+        echo "ga CP850"
+        echo "ga_IE CP850"
+        echo "gd CP850"
+        echo "gd_GB CP850"
+        echo "gl CP850"
+        echo "gl_ES CP850"
+        echo "id CP850"    # not CP437 ??
+        echo "id_ID CP850" # not CP437 ??
+        echo "is CP861"    # not CP850 ??
+        echo "is_IS CP861" # not CP850 ??
+        echo "it CP850"
+        echo "it_CH CP850"
+        echo "it_IT CP850"
+        echo "lt CP775"
+        echo "lt_LT CP775"
+        echo "lv CP775"
+        echo "lv_LV CP775"
+        echo "nb CP865"    # not CP850 ??
+        echo "nb_NO CP865" # not CP850 ??
+        echo "nl CP850"
+        echo "nl_BE CP850"
+        echo "nl_NL CP850"
+        echo "nn CP865"    # not CP850 ??
+        echo "nn_NO CP865" # not CP850 ??
+        echo "no CP865"    # not CP850 ??
+        echo "no_NO CP865" # not CP850 ??
+        echo "pt CP850"
+        echo "pt_BR CP850"
+        echo "pt_PT CP850"
+        echo "sv CP850"
+        echo "sv_SE CP850"
+        # ISO-8859-2 languages
+        echo "cs CP852"
+        echo "cs_CZ CP852"
+        echo "hr CP852"
+        echo "hr_HR CP852"
+        echo "hu CP852"
+        echo "hu_HU CP852"
+        echo "pl CP852"
+        echo "pl_PL CP852"
+        echo "ro CP852"
+        echo "ro_RO CP852"
+        echo "sk CP852"
+        echo "sk_SK CP852"
+        echo "sl CP852"
+        echo "sl_SI CP852"
+        echo "sq CP852"
+        echo "sq_AL CP852"
+        echo "sr CP852"    # CP852 or CP866 or CP855 ??
+        echo "sr_CS CP852" # CP852 or CP866 or CP855 ??
+        echo "sr_YU CP852" # CP852 or CP866 or CP855 ??
+        # ISO-8859-3 languages
+        echo "mt CP850"
+        echo "mt_MT CP850"
+        # ISO-8859-5 languages
+        echo "be CP866"
+        echo "be_BE CP866"
+        echo "bg CP866"    # not CP855 ??
+        echo "bg_BG CP866" # not CP855 ??
+        echo "mk CP866"    # not CP855 ??
+        echo "mk_MK CP866" # not CP855 ??
+        echo "ru CP866"
+        echo "ru_RU CP866"
+        echo "uk CP1125"
+        echo "uk_UA CP1125"
+        # ISO-8859-6 languages
+        echo "ar CP864"
+        echo "ar_AE CP864"
+        echo "ar_DZ CP864"
+        echo "ar_EG CP864"
+        echo "ar_IQ CP864"
+        echo "ar_IR CP864"
+        echo "ar_JO CP864"
+        echo "ar_KW CP864"
+        echo "ar_MA CP864"
+        echo "ar_OM CP864"
+        echo "ar_QA CP864"
+        echo "ar_SA CP864"
+        echo "ar_SY CP864"
+        # ISO-8859-7 languages
+        echo "el CP869"
+        echo "el_GR CP869"
+        # ISO-8859-8 languages
+        echo "he CP862"
+        echo "he_IL CP862"
+        # ISO-8859-9 languages
+        echo "tr CP857"
+        echo "tr_TR CP857"
+        # Japanese
+        echo "ja CP932"
+        echo "ja_JP CP932"
+        # Chinese
+        echo "zh_CN GBK"
+        echo "zh_TW CP950" # not CP938 ??
+        # Korean
+        echo "kr CP949"    # not CP934 ??
+        echo "kr_KR CP949" # not CP934 ??
+        # Thai
+        echo "th CP874"
+        echo "th_TH CP874"
+        # Other
+        echo "eo CP850"
+        echo "eo_EO CP850"
+        ;;
+esac
diff --git a/gl/creat-safer.c b/gl/creat-safer.c
index f4a2e59d..fc314ba4 100644
--- a/gl/creat-safer.c
+++ b/gl/creat-safer.c
@@ -2,10 +2,10 @@
 
    Copyright (C) 2005, 2006 Free Software Foundation, Inc.
 
-   This program is free software; you can redistribute it and/or modify
+   This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -13,8 +13,7 @@
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software Foundation,
-   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 /* Written by Jim Meyering.  */
 
diff --git a/gl/dirname.c b/gl/dirname.c
index 16552c64..c27e5b5d 100644
--- a/gl/dirname.c
+++ b/gl/dirname.c
@@ -3,10 +3,10 @@
    Copyright (C) 1990, 1998, 2000, 2001, 2003, 2004, 2005, 2006 Free Software
    Foundation, Inc.
 
-   This program is free software; you can redistribute it and/or modify
+   This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -14,8 +14,7 @@
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software Foundation,
-   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/gl/dirname.h b/gl/dirname.h
index 91e7ed33..f592350b 100644
--- a/gl/dirname.h
+++ b/gl/dirname.h
@@ -2,10 +2,10 @@
 
     Copyright (C) 1998, 2001, 2003-2006 Free Software Foundation, Inc.
 
-    This program is free software; you can redistribute it and/or modify
+    This program is free software: you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2, or (at your option)
-    any later version.
+    the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
 
     This program is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -13,8 +13,7 @@
     GNU General Public License for more details.
 
     You should have received a copy of the GNU General Public License
-    along with this program; if not, write to the Free Software Foundation,
-    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #ifndef DIRNAME_H_
 # define DIRNAME_H_ 1
diff --git a/gl/dup-safer.c b/gl/dup-safer.c
index 7b12b615..a6908511 100644
--- a/gl/dup-safer.c
+++ b/gl/dup-safer.c
@@ -2,10 +2,10 @@
 
    Copyright (C) 2001, 2004, 2005, 2006 Free Software Foundation, Inc.
 
-   This program is free software; you can redistribute it and/or modify
+   This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -13,8 +13,7 @@
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software Foundation,
-   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 /* Written by Paul Eggert.  */
 
diff --git a/gl/error.c b/gl/error.c
index cf863433..3177bd5d 100644
--- a/gl/error.c
+++ b/gl/error.c
@@ -1,20 +1,19 @@
 /* Error handler for noninteractive utilities
-   Copyright (C) 1990-1998, 2000-2005, 2006 Free Software Foundation, Inc.
+   Copyright (C) 1990-1998, 2000-2007 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
-   This program is free software; you can redistribute it and/or modify
+   This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.
 
-   You should have received a copy of the GNU General Public License along
-   with this program; if not, write to the Free Software Foundation,
-   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 /* Written by David MacKenzie <djm@gnu.ai.mit.edu>.  */
 
@@ -31,6 +30,7 @@
 
 #if !_LIBC && ENABLE_NLS
 # include "gettext.h"
+# define _(msgid) gettext (msgid)
 #endif
 
 #ifdef _LIBC
diff --git a/gl/error.h b/gl/error.h
index 5a5f2476..6d496811 100644
--- a/gl/error.h
+++ b/gl/error.h
@@ -1,27 +1,26 @@
 /* Declaration for error-reporting function
-   Copyright (C) 1995, 1996, 1997, 2003, 2006 Free Software Foundation, Inc.
+   Copyright (C) 1995, 1996, 1997, 2003, 2006, 2008 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
-   This program is free software; you can redistribute it and/or modify
+   This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.
 
-   You should have received a copy of the GNU General Public License along
-   with this program; if not, write to the Free Software Foundation,
-   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #ifndef _ERROR_H
 #define _ERROR_H 1
 
 #ifndef __attribute__
 /* This feature is available in gcc versions 2.5 and later.  */
-# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 5) || __STRICT_ANSI__
+# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 5)
 #  define __attribute__(Spec) /* empty */
 # endif
 /* The __-protected variants of `format' and `printf' attributes
diff --git a/gl/exit.h b/gl/exit.h
deleted file mode 100644
index e8f77388..00000000
--- a/gl/exit.h
+++ /dev/null
@@ -1,32 +0,0 @@
-/* exit() function.
-   Copyright (C) 1995, 2001 Free Software Foundation, Inc.
-
-   This program is free software; you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software Foundation,
-   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
-
-#ifndef _EXIT_H
-#define _EXIT_H
-
-/* Get exit() declaration.  */
-#include <stdlib.h>
-
-/* Some systems do not define EXIT_*, despite otherwise supporting C89.  */
-#ifndef EXIT_SUCCESS
-# define EXIT_SUCCESS 0
-#endif
-#ifndef EXIT_FAILURE
-# define EXIT_FAILURE 1
-#endif
-
-#endif /* _EXIT_H */
diff --git a/gl/exitfail.c b/gl/exitfail.c
index 97abc674..6d1fe4ae 100644
--- a/gl/exitfail.c
+++ b/gl/exitfail.c
@@ -1,11 +1,11 @@
 /* Failure exit status
 
-   Copyright (C) 2002, 2003, 2005, 2006 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2003, 2005, 2006, 2007 Free Software Foundation, Inc.
 
-   This program is free software; you can redistribute it and/or modify
+   This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -13,13 +13,12 @@
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
-   along with this program; see the file COPYING.
-   If not, write to the Free Software Foundation,
-   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
 #include "exitfail.h"
-#include "exit.h"
+
+#include <stdlib.h>
 
 int volatile exit_failure = EXIT_FAILURE;
diff --git a/gl/exitfail.h b/gl/exitfail.h
index e46cf9c1..713f2591 100644
--- a/gl/exitfail.h
+++ b/gl/exitfail.h
@@ -2,10 +2,10 @@
 
    Copyright (C) 2002 Free Software Foundation, Inc.
 
-   This program is free software; you can redistribute it and/or modify
+   This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -13,8 +13,6 @@
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
-   along with this program; see the file COPYING.
-   If not, write to the Free Software Foundation,
-   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 extern int volatile exit_failure;
diff --git a/gl/fcntl--.h b/gl/fcntl--.h
index 51b869e6..5a6a8792 100644
--- a/gl/fcntl--.h
+++ b/gl/fcntl--.h
@@ -2,10 +2,10 @@
 
    Copyright (C) 2005 Free Software Foundation, Inc.
 
-   This program is free software; you can redistribute it and/or modify
+   This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -13,8 +13,7 @@
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software Foundation,
-   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 /* Written by Paul Eggert.  */
 
diff --git a/gl/fcntl-safer.h b/gl/fcntl-safer.h
index cab6aab1..99f38656 100644
--- a/gl/fcntl-safer.h
+++ b/gl/fcntl-safer.h
@@ -2,10 +2,10 @@
 
    Copyright (C) 2005 Free Software Foundation, Inc.
 
-   This program is free software; you can redistribute it and/or modify
+   This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -13,8 +13,7 @@
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software Foundation,
-   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 /* Written by Paul Eggert.  */
 
diff --git a/gl/fd-safer.c b/gl/fd-safer.c
index 256bfa4a..df38c8f7 100644
--- a/gl/fd-safer.c
+++ b/gl/fd-safer.c
@@ -2,10 +2,10 @@
 
    Copyright (C) 2005, 2006 Free Software Foundation, Inc.
 
-   This program is free software; you can redistribute it and/or modify
+   This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -13,8 +13,7 @@
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software Foundation,
-   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 /* Written by Paul Eggert.  */
 
diff --git a/gl/float+.h b/gl/float+.h
new file mode 100644
index 00000000..240fe365
--- /dev/null
+++ b/gl/float+.h
@@ -0,0 +1,148 @@
+/* Supplemental information about the floating-point formats.
+   Copyright (C) 2007 Free Software Foundation, Inc.
+   Written by Bruno Haible <bruno@clisp.org>, 2007.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+
+#ifndef _FLOATPLUS_H
+#define _FLOATPLUS_H
+
+#include <float.h>
+#include <limits.h>
+
+/* Number of bits in the mantissa of a floating-point number, including the
+   "hidden bit".  */
+#if FLT_RADIX == 2
+# define FLT_MANT_BIT FLT_MANT_DIG
+# define DBL_MANT_BIT DBL_MANT_DIG
+# define LDBL_MANT_BIT LDBL_MANT_DIG
+#elif FLT_RADIX == 4
+# define FLT_MANT_BIT (FLT_MANT_DIG * 2)
+# define DBL_MANT_BIT (DBL_MANT_DIG * 2)
+# define LDBL_MANT_BIT (LDBL_MANT_DIG * 2)
+#elif FLT_RADIX == 16
+# define FLT_MANT_BIT (FLT_MANT_DIG * 4)
+# define DBL_MANT_BIT (DBL_MANT_DIG * 4)
+# define LDBL_MANT_BIT (LDBL_MANT_DIG * 4)
+#endif
+
+/* Bit mask that can be used to mask the exponent, as an unsigned number.  */
+#define FLT_EXP_MASK ((FLT_MAX_EXP - FLT_MIN_EXP) | 7)
+#define DBL_EXP_MASK ((DBL_MAX_EXP - DBL_MIN_EXP) | 7)
+#define LDBL_EXP_MASK ((LDBL_MAX_EXP - LDBL_MIN_EXP) | 7)
+
+/* Number of bits used for the exponent of a floating-point number, including
+   the exponent's sign.  */
+#define FLT_EXP_BIT \
+  (FLT_EXP_MASK < 0x100 ? 8 : \
+   FLT_EXP_MASK < 0x200 ? 9 : \
+   FLT_EXP_MASK < 0x400 ? 10 : \
+   FLT_EXP_MASK < 0x800 ? 11 : \
+   FLT_EXP_MASK < 0x1000 ? 12 : \
+   FLT_EXP_MASK < 0x2000 ? 13 : \
+   FLT_EXP_MASK < 0x4000 ? 14 : \
+   FLT_EXP_MASK < 0x8000 ? 15 : \
+   FLT_EXP_MASK < 0x10000 ? 16 : \
+   FLT_EXP_MASK < 0x20000 ? 17 : \
+   FLT_EXP_MASK < 0x40000 ? 18 : \
+   FLT_EXP_MASK < 0x80000 ? 19 : \
+   FLT_EXP_MASK < 0x100000 ? 20 : \
+   FLT_EXP_MASK < 0x200000 ? 21 : \
+   FLT_EXP_MASK < 0x400000 ? 22 : \
+   FLT_EXP_MASK < 0x800000 ? 23 : \
+   FLT_EXP_MASK < 0x1000000 ? 24 : \
+   FLT_EXP_MASK < 0x2000000 ? 25 : \
+   FLT_EXP_MASK < 0x4000000 ? 26 : \
+   FLT_EXP_MASK < 0x8000000 ? 27 : \
+   FLT_EXP_MASK < 0x10000000 ? 28 : \
+   FLT_EXP_MASK < 0x20000000 ? 29 : \
+   FLT_EXP_MASK < 0x40000000 ? 30 : \
+   FLT_EXP_MASK <= 0x7fffffff ? 31 : \
+   32)
+#define DBL_EXP_BIT \
+  (DBL_EXP_MASK < 0x100 ? 8 : \
+   DBL_EXP_MASK < 0x200 ? 9 : \
+   DBL_EXP_MASK < 0x400 ? 10 : \
+   DBL_EXP_MASK < 0x800 ? 11 : \
+   DBL_EXP_MASK < 0x1000 ? 12 : \
+   DBL_EXP_MASK < 0x2000 ? 13 : \
+   DBL_EXP_MASK < 0x4000 ? 14 : \
+   DBL_EXP_MASK < 0x8000 ? 15 : \
+   DBL_EXP_MASK < 0x10000 ? 16 : \
+   DBL_EXP_MASK < 0x20000 ? 17 : \
+   DBL_EXP_MASK < 0x40000 ? 18 : \
+   DBL_EXP_MASK < 0x80000 ? 19 : \
+   DBL_EXP_MASK < 0x100000 ? 20 : \
+   DBL_EXP_MASK < 0x200000 ? 21 : \
+   DBL_EXP_MASK < 0x400000 ? 22 : \
+   DBL_EXP_MASK < 0x800000 ? 23 : \
+   DBL_EXP_MASK < 0x1000000 ? 24 : \
+   DBL_EXP_MASK < 0x2000000 ? 25 : \
+   DBL_EXP_MASK < 0x4000000 ? 26 : \
+   DBL_EXP_MASK < 0x8000000 ? 27 : \
+   DBL_EXP_MASK < 0x10000000 ? 28 : \
+   DBL_EXP_MASK < 0x20000000 ? 29 : \
+   DBL_EXP_MASK < 0x40000000 ? 30 : \
+   DBL_EXP_MASK <= 0x7fffffff ? 31 : \
+   32)
+#define LDBL_EXP_BIT \
+  (LDBL_EXP_MASK < 0x100 ? 8 : \
+   LDBL_EXP_MASK < 0x200 ? 9 : \
+   LDBL_EXP_MASK < 0x400 ? 10 : \
+   LDBL_EXP_MASK < 0x800 ? 11 : \
+   LDBL_EXP_MASK < 0x1000 ? 12 : \
+   LDBL_EXP_MASK < 0x2000 ? 13 : \
+   LDBL_EXP_MASK < 0x4000 ? 14 : \
+   LDBL_EXP_MASK < 0x8000 ? 15 : \
+   LDBL_EXP_MASK < 0x10000 ? 16 : \
+   LDBL_EXP_MASK < 0x20000 ? 17 : \
+   LDBL_EXP_MASK < 0x40000 ? 18 : \
+   LDBL_EXP_MASK < 0x80000 ? 19 : \
+   LDBL_EXP_MASK < 0x100000 ? 20 : \
+   LDBL_EXP_MASK < 0x200000 ? 21 : \
+   LDBL_EXP_MASK < 0x400000 ? 22 : \
+   LDBL_EXP_MASK < 0x800000 ? 23 : \
+   LDBL_EXP_MASK < 0x1000000 ? 24 : \
+   LDBL_EXP_MASK < 0x2000000 ? 25 : \
+   LDBL_EXP_MASK < 0x4000000 ? 26 : \
+   LDBL_EXP_MASK < 0x8000000 ? 27 : \
+   LDBL_EXP_MASK < 0x10000000 ? 28 : \
+   LDBL_EXP_MASK < 0x20000000 ? 29 : \
+   LDBL_EXP_MASK < 0x40000000 ? 30 : \
+   LDBL_EXP_MASK <= 0x7fffffff ? 31 : \
+   32)
+
+/* Number of bits used for a floating-point number: the mantissa (not
+   counting the "hidden bit", since it may or may not be explicit), the
+   exponent, and the sign.  */
+#define FLT_TOTAL_BIT ((FLT_MANT_BIT - 1) + FLT_EXP_BIT + 1)
+#define DBL_TOTAL_BIT ((DBL_MANT_BIT - 1) + DBL_EXP_BIT + 1)
+#define LDBL_TOTAL_BIT ((LDBL_MANT_BIT - 1) + LDBL_EXP_BIT + 1)
+
+/* Number of bytes used for a floating-point number.
+   This can be smaller than the 'sizeof'.  For example, on i386 systems,
+   'long double' most often have LDBL_MANT_BIT = 64, LDBL_EXP_BIT = 16, hence
+   LDBL_TOTAL_BIT = 80 bits, i.e. 10 bytes of consecutive memory, but
+   sizeof (long double) = 12 or = 16.  */
+#define SIZEOF_FLT ((FLT_TOTAL_BIT + CHAR_BIT - 1) / CHAR_BIT)
+#define SIZEOF_DBL ((DBL_TOTAL_BIT + CHAR_BIT - 1) / CHAR_BIT)
+#define SIZEOF_LDBL ((LDBL_TOTAL_BIT + CHAR_BIT - 1) / CHAR_BIT)
+
+/* Verify that SIZEOF_FLT <= sizeof (float) etc.  */
+typedef int verify_sizeof_flt[2 * (SIZEOF_FLT <= sizeof (float)) - 1];
+typedef int verify_sizeof_dbl[2 * (SIZEOF_DBL <= sizeof (double)) - 1];
+typedef int verify_sizeof_ldbl[2 * (SIZEOF_LDBL <= sizeof (long double)) - 1];
+
+#endif /* _FLOATPLUS_H */
diff --git a/gl/float.in.h b/gl/float.in.h
new file mode 100644
index 00000000..25040320
--- /dev/null
+++ b/gl/float.in.h
@@ -0,0 +1,58 @@
+/* A correct <float.h>.
+
+   Copyright (C) 2007 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#ifndef _GL_FLOAT_H
+
+/* The include_next requires a split double-inclusion guard.  */
+#@INCLUDE_NEXT@ @NEXT_FLOAT_H@
+
+#ifndef _GL_FLOAT_H
+#define _GL_FLOAT_H
+
+/* 'long double' properties.  */
+#if defined __i386__ && (defined __BEOS__ || defined __OpenBSD__)
+/* Number of mantissa units, in base FLT_RADIX.  */
+# undef LDBL_MANT_DIG
+# define LDBL_MANT_DIG   64
+/* Number of decimal digits that is sufficient for representing a number.  */
+# undef LDBL_DIG
+# define LDBL_DIG        18
+/* x-1 where x is the smallest representable number > 1.  */
+# undef LDBL_EPSILON
+# define LDBL_EPSILON    1.0842021724855044340E-19L
+/* Minimum e such that FLT_RADIX^(e-1) is a normalized number.  */
+# undef LDBL_MIN_EXP
+# define LDBL_MIN_EXP    (-16381)
+/* Maximum e such that FLT_RADIX^(e-1) is a representable finite number.  */
+# undef LDBL_MAX_EXP
+# define LDBL_MAX_EXP    16384
+/* Minimum positive normalized number.  */
+# undef LDBL_MIN
+# define LDBL_MIN        3.3621031431120935063E-4932L
+/* Maximum representable finite number.  */
+# undef LDBL_MAX
+# define LDBL_MAX        1.1897314953572317650E+4932L
+/* Minimum e such that 10^e is in the range of normalized numbers.  */
+# undef LDBL_MIN_10_EXP
+# define LDBL_MIN_10_EXP (-4931)
+/* Maximum e such that 10^e is in the range of representable finite numbers.  */
+# undef LDBL_MAX_10_EXP
+# define LDBL_MAX_10_EXP 4932
+#endif
+
+#endif /* _GL_FLOAT_H */
+#endif /* _GL_FLOAT_H */
diff --git a/gl/fsusage.c b/gl/fsusage.c
index 337bf531..23d40ea1 100644
--- a/gl/fsusage.c
+++ b/gl/fsusage.c
@@ -3,10 +3,10 @@
    Copyright (C) 1991, 1992, 1996, 1998, 1999, 2002, 2003, 2004, 2005, 2006
    Free Software Foundation, Inc.
 
-   This program is free software; you can redistribute it and/or modify
+   This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -14,8 +14,7 @@
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software Foundation,
-   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/gl/fsusage.h b/gl/fsusage.h
index 7fa9f8d6..b32abe18 100644
--- a/gl/fsusage.h
+++ b/gl/fsusage.h
@@ -3,10 +3,10 @@
    Copyright (C) 1991, 1992, 1997, 2003, 2004, 2005, 2006 Free Software
    Foundation, Inc.
 
-   This program is free software; you can redistribute it and/or modify
+   This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -14,8 +14,7 @@
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software Foundation,
-   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 /* Space usage statistics for a file system.  Blocks are 512-byte. */
 
diff --git a/gl/full-read.c b/gl/full-read.c
index 8c3472a4..fb7212bb 100644
--- a/gl/full-read.c
+++ b/gl/full-read.c
@@ -1,10 +1,10 @@
 /* An interface to read that retries after partial reads and interrupts.
    Copyright (C) 2002, 2003 Free Software Foundation, Inc.
 
-   This program is free software; you can redistribute it and/or modify
+   This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -12,8 +12,7 @@
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software Foundation,
-   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #define FULL_READ
 #include "full-write.c"
diff --git a/gl/full-read.h b/gl/full-read.h
index 05d83a76..a341ee00 100644
--- a/gl/full-read.h
+++ b/gl/full-read.h
@@ -2,10 +2,10 @@
 
    Copyright (C) 2002 Free Software Foundation, Inc.
 
-   This program is free software; you can redistribute it and/or modify
+   This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -14,7 +14,7 @@
 
    You should have received a copy of the GNU General Public License
    along with this program; if not, read to the Free Software Foundation,
-   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #include <stddef.h>
 
diff --git a/gl/full-write.c b/gl/full-write.c
index cc168720..51f2d381 100644
--- a/gl/full-write.c
+++ b/gl/full-write.c
@@ -3,10 +3,10 @@
    Copyright (C) 1993, 1994, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
    2004, 2005, 2006 Free Software Foundation, Inc.
 
-   This program is free software; you can redistribute it and/or modify
+   This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -14,8 +14,7 @@
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software Foundation,
-   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/gl/full-write.h b/gl/full-write.h
index d20d2fe4..9a801464 100644
--- a/gl/full-write.h
+++ b/gl/full-write.h
@@ -2,10 +2,10 @@
 
    Copyright (C) 2002-2003 Free Software Foundation, Inc.
 
-   This program is free software; you can redistribute it and/or modify
+   This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -13,8 +13,7 @@
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software Foundation,
-   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #include <stddef.h>
 
diff --git a/gl/gai_strerror.c b/gl/gai_strerror.c
index 7f0e034e..9e4abbe6 100644
--- a/gl/gai_strerror.c
+++ b/gl/gai_strerror.c
@@ -4,7 +4,7 @@
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
+   the Free Software Foundation; either version 3, or (at your option)
    any later version.
 
    This program is distributed in the hope that it will be useful,
@@ -52,6 +52,7 @@ values[] =
     { EAI_SERVICE, N_("Servname not supported for ai_socktype") },
     { EAI_SOCKTYPE, N_("ai_socktype not supported") },
     { EAI_SYSTEM, N_("System error") },
+    { EAI_OVERFLOW, N_("Argument buffer too small") },
 #ifdef __USE_GNU
     { EAI_INPROGRESS, N_("Processing request in progress") },
     { EAI_CANCELED, N_("Request canceled") },
diff --git a/gl/getaddrinfo.c b/gl/getaddrinfo.c
index f523f765..04f0ac2e 100644
--- a/gl/getaddrinfo.c
+++ b/gl/getaddrinfo.c
@@ -1,11 +1,11 @@
 /* Get address information (partial implementation).
-   Copyright (C) 1997, 2001, 2002, 2004, 2005, 2006 Free Software
+   Copyright (C) 1997, 2001, 2002, 2004, 2005, 2006, 2007 Free Software
    Foundation, Inc.
    Contributed by Simon Josefsson <simon@josefsson.org>.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
+   the Free Software Foundation; either version 3, or (at your option)
    any later version.
 
    This program is distributed in the hope that it will be useful,
@@ -28,9 +28,12 @@
 /* Get calloc. */
 #include <stdlib.h>
 
-/* Get memcpy. */
+/* Get memcpy, strdup. */
 #include <string.h>
 
+/* Get snprintf. */
+#include <stdio.h>
+
 #include <stdbool.h>
 
 #include "gettext.h"
@@ -38,8 +41,6 @@
 #define N_(String) String
 
 #include "inet_ntop.h"
-#include "snprintf.h"
-#include "strdup.h"
 
 /* BeOS has AF_INET, but not PF_INET.  */
 #ifndef PF_INET
@@ -178,7 +179,7 @@ getaddrinfo (const char *restrict nodename,
       const char *proto =
         (hints && hints->ai_socktype == SOCK_DGRAM) ? "udp" : "tcp";
 
-      if (!(hints->ai_flags & AI_NUMERICSERV))
+      if (hints == NULL || !(hints->ai_flags & AI_NUMERICSERV))
         /* FIXME: Use getservbyname_r if available. */
         se = getservbyname (servname, proto);
 
diff --git a/gl/getaddrinfo.h b/gl/getaddrinfo.h
index b4ef242c..050b7935 100644
--- a/gl/getaddrinfo.h
+++ b/gl/getaddrinfo.h
@@ -5,7 +5,7 @@
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
+   the Free Software Foundation; either version 3, or (at your option)
    any later version.
 
    This program is distributed in the hope that it will be useful,
diff --git a/gl/gethostname.c b/gl/gethostname.c
index eedc40ec..169dd4ef 100644
--- a/gl/gethostname.c
+++ b/gl/gethostname.c
@@ -1,11 +1,11 @@
 /* gethostname emulation for SysV and POSIX.1.
 
-   Copyright (C) 1992, 2003, 2006 Free Software Foundation, Inc.
+   Copyright (C) 1992, 2003, 2006, 2008 Free Software Foundation, Inc.
 
-   This program is free software; you can redistribute it and/or modify
+   This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -13,8 +13,7 @@
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software Foundation,
-   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 /* David MacKenzie <djm@gnu.ai.mit.edu> */
 
@@ -24,6 +23,8 @@
 # include <sys/utsname.h>
 #endif
 
+#include <string.h>
+
 /* Put up to LEN chars of the host name into NAME.
    Null terminate it if the name is shorter than LEN.
    Return 0 if ok, -1 if error.  */
diff --git a/gl/getloadavg.c b/gl/getloadavg.c
index cfa62735..5faa8faa 100644
--- a/gl/getloadavg.c
+++ b/gl/getloadavg.c
@@ -1,16 +1,16 @@
 /* Get the system load averages.
 
    Copyright (C) 1985, 1986, 1987, 1988, 1989, 1991, 1992, 1993, 1994,
-   1995, 1997, 1999, 2000, 2003, 2004, 2005, 2006 Free Software
+   1995, 1997, 1999, 2000, 2003, 2004, 2005, 2006, 2007 Free Software
    Foundation, Inc.
 
    NOTE: The canonical source of this file is maintained with gnulib.
    Bugs can be reported to bug-gnulib@gnu.org.
 
-   This program is free software; you can redistribute it and/or modify
+   This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -18,9 +18,7 @@
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software
-   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
-   USA.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 /* Compile-time symbols that this file uses:
 
@@ -32,6 +30,8 @@
                                 If that isn't an option, then just put
                                 AC_CHECK_FUNCS(pstat_getdynamic) in your
                                 configure.in file.
+   HAVE_LIBPERFSTAT Define this if your system has the
+                                perfstat_cpu_total function in libperfstat (AIX).
    FIXUP_KERNEL_SYMBOL_ADDR()   Adjust address in returned struct nlist.
    KERNEL_FILE                  Name of the kernel file to nlist.
    LDAV_CVT()                   Scale the load average from the kernel.
@@ -188,6 +188,8 @@
 #  include <sys/socket.h>
 #  include <net/route.h>
 #  include <sys/table.h>
+/* Tru64 4.0D's table.h redefines sys */
+#  undef sys
 # endif
 
 # if defined (__osf__) && (defined (mips) || defined (__mips__))
@@ -254,7 +256,7 @@
 #   define LOAD_AVE_TYPE long
 #  endif
 
-#  ifdef _AIX
+#  if defined _AIX && ! defined HAVE_LIBPERFSTAT
 #   define LOAD_AVE_TYPE long
 #  endif
 
@@ -309,7 +311,7 @@
 #   define FSCALE 100.0
 #  endif
 
-#  ifdef _AIX
+#  if defined _AIX && !defined HAVE_LIBPERFSTAT
 #   define FSCALE 65536.0
 #  endif
 
@@ -347,7 +349,7 @@
 #  define LDAV_SYMBOL "_Loadavg"
 # endif
 
-# if !defined (LDAV_SYMBOL) && ((defined (hpux) && !defined (hp9000s300)) || defined (_SEQUENT_) || defined (SVR4) || defined (ISC) || defined (sgi) || (defined (ardent) && defined (titan)) || defined (_AIX))
+# if !defined (LDAV_SYMBOL) && ((defined (hpux) && !defined (hp9000s300)) || defined (_SEQUENT_) || defined (SVR4) || defined (ISC) || defined (sgi) || (defined (ardent) && defined (titan)) || (defined (_AIX) && !defined(HAVE_LIBPERFSTAT)))
 #  define LDAV_SYMBOL "avenrun"
 # endif
 
@@ -404,6 +406,14 @@
 
 # endif /* LOAD_AVE_TYPE */
 
+# if defined HAVE_LIBPERFSTAT
+#  include <libperfstat.h>
+#  include <sys/proc.h>
+#  ifndef SBITS
+#   define SBITS 16
+#  endif
+# endif
+
 # if defined (__GNU__) && !defined (NeXT)
 /* Note that NeXT Openstep defines __GNU__ even though it should not.  */
 /* GNU system acts much like NeXT, for load average purposes,
@@ -568,6 +578,22 @@ getloadavg (double loadavg[], int nelem)
 
 # endif /* hpux && HAVE_PSTAT_GETDYNAMIC */
 
+# if ! defined LDAV_DONE && defined HAVE_LIBPERFSTAT
+#  define LDAV_DONE
+#  undef LOAD_AVE_TYPE
+/* Use perfstat_cpu_total because we don't have to be root. */
+  {
+    perfstat_cpu_total_t cpu_stats;
+    int result = perfstat_cpu_total (NULL, &cpu_stats, sizeof cpu_stats, 1);
+    if (result == -1)
+      return result;
+    loadavg[0] = cpu_stats.loadavg[0] / (double)(1 << SBITS);
+    loadavg[1] = cpu_stats.loadavg[1] / (double)(1 << SBITS);
+    loadavg[2] = cpu_stats.loadavg[2] / (double)(1 << SBITS);
+    elem = 3;
+  }
+# endif
+
 # if !defined (LDAV_DONE) && (defined (__linux__) || defined (__CYGWIN__))
 #  define LDAV_DONE
 #  undef LOAD_AVE_TYPE
diff --git a/gl/getopt.c b/gl/getopt.c
index 3580ad82..3c236019 100644
--- a/gl/getopt.c
+++ b/gl/getopt.c
@@ -6,19 +6,18 @@
         Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
-   This program is free software; you can redistribute it and/or modify
+   This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.
 
-   You should have received a copy of the GNU General Public License along
-   with this program; if not, write to the Free Software Foundation,
-   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #ifndef _LIBC
 # include <config.h>
diff --git a/gl/getopt_.h b/gl/getopt.in.h
index 27fce3dc..d2d3e6e6 100644
--- a/gl/getopt_.h
+++ b/gl/getopt.in.h
@@ -1,21 +1,20 @@
 /* Declarations for getopt.
-   Copyright (C) 1989-1994,1996-1999,2001,2003,2004,2005,2006
+   Copyright (C) 1989-1994,1996-1999,2001,2003,2004,2005,2006,2007
    Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
-   This program is free software; you can redistribute it and/or modify
+   This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.
 
-   You should have received a copy of the GNU General Public License along
-   with this program; if not, write to the Free Software Foundation,
-   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #ifndef _GETOPT_H
 
@@ -101,7 +100,7 @@
 # endif
 #endif
 
-#ifdef  __cplusplus
+#ifdef __cplusplus
 extern "C" {
 #endif
 
@@ -216,7 +215,7 @@ extern int getopt_long_only (int ___argc, char *__getopt_argv_const *___argv,
 
 #endif
 
-#ifdef  __cplusplus
+#ifdef __cplusplus
 }
 #endif
 
diff --git a/gl/getopt1.c b/gl/getopt1.c
index cc0746ea..d6a3ecf4 100644
--- a/gl/getopt1.c
+++ b/gl/getopt1.c
@@ -3,19 +3,18 @@
      Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
-   This program is free software; you can redistribute it and/or modify
+   This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.
 
-   You should have received a copy of the GNU General Public License along
-   with this program; if not, write to the Free Software Foundation,
-   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #ifdef _LIBC
 # include <getopt.h>
diff --git a/gl/getopt_int.h b/gl/getopt_int.h
index 401579fd..3c6628bb 100644
--- a/gl/getopt_int.h
+++ b/gl/getopt_int.h
@@ -3,19 +3,18 @@
    Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
-   This program is free software; you can redistribute it and/or modify
+   This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.
 
-   You should have received a copy of the GNU General Public License along
-   with this program; if not, write to the Free Software Foundation,
-   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #ifndef _GETOPT_INT_H
 #define _GETOPT_INT_H   1
diff --git a/gl/gettext.h b/gl/gettext.h
index 9d76ec9a..763dd3c1 100644
--- a/gl/gettext.h
+++ b/gl/gettext.h
@@ -3,7 +3,7 @@
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
+   the Free Software Foundation; either version 3, or (at your option)
    any later version.
 
    This program is distributed in the hope that it will be useful,
diff --git a/gl/inet_ntop.c b/gl/inet_ntop.c
index 537b59fa..3e266a27 100644
--- a/gl/inet_ntop.c
+++ b/gl/inet_ntop.c
@@ -4,7 +4,7 @@
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
+   the Free Software Foundation; either version 3, or (at your option)
    any later version.
 
    This program is distributed in the hope that it will be useful,
diff --git a/gl/inet_ntop.h b/gl/inet_ntop.h
index bd1e085a..2897bb40 100644
--- a/gl/inet_ntop.h
+++ b/gl/inet_ntop.h
@@ -3,7 +3,7 @@
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
+   the Free Software Foundation; either version 3, or (at your option)
    any later version.
 
    This program is distributed in the hope that it will be useful,
diff --git a/gl/intprops.h b/gl/intprops.h
index 34f971cb..002161ee 100644
--- a/gl/intprops.h
+++ b/gl/intprops.h
@@ -2,10 +2,10 @@
 
    Copyright (C) 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
 
-   This program is free software; you can redistribute it and/or modify
+   This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -13,8 +13,7 @@
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software Foundation,
-   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 /* Written by Paul Eggert.  */
 
diff --git a/gl/localcharset.c b/gl/localcharset.c
new file mode 100644
index 00000000..4f319487
--- /dev/null
+++ b/gl/localcharset.c
@@ -0,0 +1,460 @@
+/* Determine a canonical name for the current locale's character encoding.
+
+   Copyright (C) 2000-2006 Free Software Foundation, Inc.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along
+   with this program; if not, write to the Free Software Foundation,
+   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>.  */
+
+#include <config.h>
+
+/* Specification.  */
+#include "localcharset.h"
+
+#include <stddef.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+
+#if defined _WIN32 || defined __WIN32__
+# define WIN32_NATIVE
+#endif
+
+#if defined __EMX__
+/* Assume EMX program runs on OS/2, even if compiled under DOS.  */
+# define OS2
+#endif
+
+#if !defined WIN32_NATIVE
+# if HAVE_LANGINFO_CODESET
+#  include <langinfo.h>
+# else
+#  if 0 /* see comment below */
+#   include <locale.h>
+#  endif
+# endif
+# ifdef __CYGWIN__
+#  define WIN32_LEAN_AND_MEAN
+#  include <windows.h>
+# endif
+#elif defined WIN32_NATIVE
+# define WIN32_LEAN_AND_MEAN
+# include <windows.h>
+#endif
+#if defined OS2
+# define INCL_DOS
+# include <os2.h>
+#endif
+
+#if ENABLE_RELOCATABLE
+# include "relocatable.h"
+#else
+# define relocate(pathname) (pathname)
+#endif
+
+/* Get LIBDIR.  */
+#ifndef LIBDIR
+# include "configmake.h"
+#endif
+
+#if defined _WIN32 || defined __WIN32__ || defined __CYGWIN__ || defined __EMX__ || defined __DJGPP__
+  /* Win32, Cygwin, OS/2, DOS */
+# define ISSLASH(C) ((C) == '/' || (C) == '\\')
+#endif
+
+#ifndef DIRECTORY_SEPARATOR
+# define DIRECTORY_SEPARATOR '/'
+#endif
+
+#ifndef ISSLASH
+# define ISSLASH(C) ((C) == DIRECTORY_SEPARATOR)
+#endif
+
+#if HAVE_DECL_GETC_UNLOCKED
+# undef getc
+# define getc getc_unlocked
+#endif
+
+/* The following static variable is declared 'volatile' to avoid a
+   possible multithread problem in the function get_charset_aliases. If we
+   are running in a threaded environment, and if two threads initialize
+   'charset_aliases' simultaneously, both will produce the same value,
+   and everything will be ok if the two assignments to 'charset_aliases'
+   are atomic. But I don't know what will happen if the two assignments mix.  */
+#if __STDC__ != 1
+# define volatile /* empty */
+#endif
+/* Pointer to the contents of the charset.alias file, if it has already been
+   read, else NULL.  Its format is:
+   ALIAS_1 '\0' CANONICAL_1 '\0' ... ALIAS_n '\0' CANONICAL_n '\0' '\0'  */
+static const char * volatile charset_aliases;
+
+/* Return a pointer to the contents of the charset.alias file.  */
+static const char *
+get_charset_aliases (void)
+{
+  const char *cp;
+
+  cp = charset_aliases;
+  if (cp == NULL)
+    {
+#if !(defined VMS || defined WIN32_NATIVE || defined __CYGWIN__)
+      FILE *fp;
+      const char *dir;
+      const char *base = "charset.alias";
+      char *file_name;
+
+      /* Make it possible to override the charset.alias location.  This is
+         necessary for running the testsuite before "make install".  */
+      dir = getenv ("CHARSETALIASDIR");
+      if (dir == NULL || dir[0] == '\0')
+        dir = relocate (LIBDIR);
+
+      /* Concatenate dir and base into freshly allocated file_name.  */
+      {
+        size_t dir_len = strlen (dir);
+        size_t base_len = strlen (base);
+        int add_slash = (dir_len > 0 && !ISSLASH (dir[dir_len - 1]));
+        file_name = (char *) malloc (dir_len + add_slash + base_len + 1);
+        if (file_name != NULL)
+          {
+            memcpy (file_name, dir, dir_len);
+            if (add_slash)
+              file_name[dir_len] = DIRECTORY_SEPARATOR;
+            memcpy (file_name + dir_len + add_slash, base, base_len + 1);
+          }
+      }
+
+      if (file_name == NULL || (fp = fopen (file_name, "r")) == NULL)
+        /* Out of memory or file not found, treat it as empty.  */
+        cp = "";
+      else
+        {
+          /* Parse the file's contents.  */
+          char *res_ptr = NULL;
+          size_t res_size = 0;
+
+          for (;;)
+            {
+              int c;
+              char buf1[50+1];
+              char buf2[50+1];
+              size_t l1, l2;
+              char *old_res_ptr;
+
+              c = getc (fp);
+              if (c == EOF)
+                break;
+              if (c == '\n' || c == ' ' || c == '\t')
+                continue;
+              if (c == '#')
+                {
+                  /* Skip comment, to end of line.  */
+                  do
+                    c = getc (fp);
+                  while (!(c == EOF || c == '\n'));
+                  if (c == EOF)
+                    break;
+                  continue;
+                }
+              ungetc (c, fp);
+              if (fscanf (fp, "%50s %50s", buf1, buf2) < 2)
+                break;
+              l1 = strlen (buf1);
+              l2 = strlen (buf2);
+              old_res_ptr = res_ptr;
+              if (res_size == 0)
+                {
+                  res_size = l1 + 1 + l2 + 1;
+                  res_ptr = (char *) malloc (res_size + 1);
+                }
+              else
+                {
+                  res_size += l1 + 1 + l2 + 1;
+                  res_ptr = (char *) realloc (res_ptr, res_size + 1);
+                }
+              if (res_ptr == NULL)
+                {
+                  /* Out of memory. */
+                  res_size = 0;
+                  if (old_res_ptr != NULL)
+                    free (old_res_ptr);
+                  break;
+                }
+              strcpy (res_ptr + res_size - (l2 + 1) - (l1 + 1), buf1);
+              strcpy (res_ptr + res_size - (l2 + 1), buf2);
+            }
+          fclose (fp);
+          if (res_size == 0)
+            cp = "";
+          else
+            {
+              *(res_ptr + res_size) = '\0';
+              cp = res_ptr;
+            }
+        }
+
+      if (file_name != NULL)
+        free (file_name);
+
+#else
+
+# if defined VMS
+      /* To avoid the troubles of an extra file charset.alias_vms in the
+         sources of many GNU packages, simply inline the aliases here.  */
+      /* The list of encodings is taken from the OpenVMS 7.3-1 documentation
+         "Compaq C Run-Time Library Reference Manual for OpenVMS systems"
+         section 10.7 "Handling Different Character Sets".  */
+      cp = "ISO8859-1" "\0" "ISO-8859-1" "\0"
+           "ISO8859-2" "\0" "ISO-8859-2" "\0"
+           "ISO8859-5" "\0" "ISO-8859-5" "\0"
+           "ISO8859-7" "\0" "ISO-8859-7" "\0"
+           "ISO8859-8" "\0" "ISO-8859-8" "\0"
+           "ISO8859-9" "\0" "ISO-8859-9" "\0"
+           /* Japanese */
+           "eucJP" "\0" "EUC-JP" "\0"
+           "SJIS" "\0" "SHIFT_JIS" "\0"
+           "DECKANJI" "\0" "DEC-KANJI" "\0"
+           "SDECKANJI" "\0" "EUC-JP" "\0"
+           /* Chinese */
+           "eucTW" "\0" "EUC-TW" "\0"
+           "DECHANYU" "\0" "DEC-HANYU" "\0"
+           "DECHANZI" "\0" "GB2312" "\0"
+           /* Korean */
+           "DECKOREAN" "\0" "EUC-KR" "\0";
+# endif
+
+# if defined WIN32_NATIVE || defined __CYGWIN__
+      /* To avoid the troubles of installing a separate file in the same
+         directory as the DLL and of retrieving the DLL's directory at
+         runtime, simply inline the aliases here.  */
+
+      cp = "CP936" "\0" "GBK" "\0"
+           "CP1361" "\0" "JOHAB" "\0"
+           "CP20127" "\0" "ASCII" "\0"
+           "CP20866" "\0" "KOI8-R" "\0"
+           "CP20936" "\0" "GB2312" "\0"
+           "CP21866" "\0" "KOI8-RU" "\0"
+           "CP28591" "\0" "ISO-8859-1" "\0"
+           "CP28592" "\0" "ISO-8859-2" "\0"
+           "CP28593" "\0" "ISO-8859-3" "\0"
+           "CP28594" "\0" "ISO-8859-4" "\0"
+           "CP28595" "\0" "ISO-8859-5" "\0"
+           "CP28596" "\0" "ISO-8859-6" "\0"
+           "CP28597" "\0" "ISO-8859-7" "\0"
+           "CP28598" "\0" "ISO-8859-8" "\0"
+           "CP28599" "\0" "ISO-8859-9" "\0"
+           "CP28605" "\0" "ISO-8859-15" "\0"
+           "CP38598" "\0" "ISO-8859-8" "\0"
+           "CP51932" "\0" "EUC-JP" "\0"
+           "CP51936" "\0" "GB2312" "\0"
+           "CP51949" "\0" "EUC-KR" "\0"
+           "CP51950" "\0" "EUC-TW" "\0"
+           "CP54936" "\0" "GB18030" "\0"
+           "CP65001" "\0" "UTF-8" "\0";
+# endif
+#endif
+
+      charset_aliases = cp;
+    }
+
+  return cp;
+}
+
+/* Determine the current locale's character encoding, and canonicalize it
+   into one of the canonical names listed in config.charset.
+   The result must not be freed; it is statically allocated.
+   If the canonical name cannot be determined, the result is a non-canonical
+   name.  */
+
+#ifdef STATIC
+STATIC
+#endif
+const char *
+locale_charset (void)
+{
+  const char *codeset;
+  const char *aliases;
+
+#if !(defined WIN32_NATIVE || defined OS2)
+
+# if HAVE_LANGINFO_CODESET
+
+  /* Most systems support nl_langinfo (CODESET) nowadays.  */
+  codeset = nl_langinfo (CODESET);
+
+#  ifdef __CYGWIN__
+  /* Cygwin 2006 does not have locales.  nl_langinfo (CODESET) always
+     returns "US-ASCII".  As long as this is not fixed, return the suffix
+     of the locale name from the environment variables (if present) or
+     the codepage as a number.  */
+  if (codeset != NULL && strcmp (codeset, "US-ASCII") == 0)
+    {
+      const char *locale;
+      static char buf[2 + 10 + 1];
+
+      locale = getenv ("LC_ALL");
+      if (locale == NULL || locale[0] == '\0')
+        {
+          locale = getenv ("LC_CTYPE");
+          if (locale == NULL || locale[0] == '\0')
+            locale = getenv ("LANG");
+        }
+      if (locale != NULL && locale[0] != '\0')
+        {
+          /* If the locale name contains an encoding after the dot, return
+             it.  */
+          const char *dot = strchr (locale, '.');
+
+          if (dot != NULL)
+            {
+              const char *modifier;
+
+              dot++;
+              /* Look for the possible @... trailer and remove it, if any.  */
+              modifier = strchr (dot, '@');
+              if (modifier == NULL)
+                return dot;
+              if (modifier - dot < sizeof (buf))
+                {
+                  memcpy (buf, dot, modifier - dot);
+                  buf [modifier - dot] = '\0';
+                  return buf;
+                }
+            }
+        }
+
+      /* Woe32 has a function returning the locale's codepage as a number.  */
+      sprintf (buf, "CP%u", GetACP ());
+      codeset = buf;
+    }
+#  endif
+
+# else
+
+  /* On old systems which lack it, use setlocale or getenv.  */
+  const char *locale = NULL;
+
+  /* But most old systems don't have a complete set of locales.  Some
+     (like SunOS 4 or DJGPP) have only the C locale.  Therefore we don't
+     use setlocale here; it would return "C" when it doesn't support the
+     locale name the user has set.  */
+#  if 0
+  locale = setlocale (LC_CTYPE, NULL);
+#  endif
+  if (locale == NULL || locale[0] == '\0')
+    {
+      locale = getenv ("LC_ALL");
+      if (locale == NULL || locale[0] == '\0')
+        {
+          locale = getenv ("LC_CTYPE");
+          if (locale == NULL || locale[0] == '\0')
+            locale = getenv ("LANG");
+        }
+    }
+
+  /* On some old systems, one used to set locale = "iso8859_1". On others,
+     you set it to "language_COUNTRY.charset". In any case, we resolve it
+     through the charset.alias file.  */
+  codeset = locale;
+
+# endif
+
+#elif defined WIN32_NATIVE
+
+  static char buf[2 + 10 + 1];
+
+  /* Woe32 has a function returning the locale's codepage as a number.  */
+  sprintf (buf, "CP%u", GetACP ());
+  codeset = buf;
+
+#elif defined OS2
+
+  const char *locale;
+  static char buf[2 + 10 + 1];
+  ULONG cp[3];
+  ULONG cplen;
+
+  /* Allow user to override the codeset, as set in the operating system,
+     with standard language environment variables.  */
+  locale = getenv ("LC_ALL");
+  if (locale == NULL || locale[0] == '\0')
+    {
+      locale = getenv ("LC_CTYPE");
+      if (locale == NULL || locale[0] == '\0')
+        locale = getenv ("LANG");
+    }
+  if (locale != NULL && locale[0] != '\0')
+    {
+      /* If the locale name contains an encoding after the dot, return it.  */
+      const char *dot = strchr (locale, '.');
+
+      if (dot != NULL)
+        {
+          const char *modifier;
+
+          dot++;
+          /* Look for the possible @... trailer and remove it, if any.  */
+          modifier = strchr (dot, '@');
+          if (modifier == NULL)
+            return dot;
+          if (modifier - dot < sizeof (buf))
+            {
+              memcpy (buf, dot, modifier - dot);
+              buf [modifier - dot] = '\0';
+              return buf;
+            }
+        }
+
+      /* Resolve through the charset.alias file.  */
+      codeset = locale;
+    }
+  else
+    {
+      /* OS/2 has a function returning the locale's codepage as a number.  */
+      if (DosQueryCp (sizeof (cp), cp, &cplen))
+        codeset = "";
+      else
+        {
+          sprintf (buf, "CP%u", cp[0]);
+          codeset = buf;
+        }
+    }
+
+#endif
+
+  if (codeset == NULL)
+    /* The canonical name cannot be determined.  */
+    codeset = "";
+
+  /* Resolve alias. */
+  for (aliases = get_charset_aliases ();
+       *aliases != '\0';
+       aliases += strlen (aliases) + 1, aliases += strlen (aliases) + 1)
+    if (strcmp (codeset, aliases) == 0
+        || (aliases[0] == '*' && aliases[1] == '\0'))
+      {
+        codeset = aliases + strlen (aliases) + 1;
+        break;
+      }
+
+  /* Don't return an empty string.  GNU libc and GNU libiconv interpret
+     the empty string as denoting "the locale's character encoding",
+     thus GNU libiconv would call this function a second time.  */
+  if (codeset[0] == '\0')
+    codeset = "ASCII";
+
+  return codeset;
+}
diff --git a/gl/localcharset.h b/gl/localcharset.h
new file mode 100644
index 00000000..b9a3013a
--- /dev/null
+++ b/gl/localcharset.h
@@ -0,0 +1,41 @@
+/* Determine a canonical name for the current locale's character encoding.
+   Copyright (C) 2000-2003 Free Software Foundation, Inc.
+   This file is part of the GNU CHARSET Library.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along
+   with this program; if not, write to the Free Software Foundation,
+   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+
+#ifndef _LOCALCHARSET_H
+#define _LOCALCHARSET_H
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+/* Determine the current locale's character encoding, and canonicalize it
+   into one of the canonical names listed in config.charset.
+   The result must not be freed; it is statically allocated.
+   If the canonical name cannot be determined, the result is a non-canonical
+   name.  */
+extern const char * locale_charset (void);
+
+
+#ifdef __cplusplus
+}
+#endif
+
+
+#endif /* _LOCALCHARSET_H */
diff --git a/gl/m4/absolute-header.m4 b/gl/m4/absolute-header.m4
index c649df08..5b7a2fc3 100644
--- a/gl/m4/absolute-header.m4
+++ b/gl/m4/absolute-header.m4
@@ -1,5 +1,5 @@
-# absolute-header.m4 serial 6
-dnl Copyright (C) 2006 Free Software Foundation, Inc.
+# absolute-header.m4 serial 7
+dnl Copyright (C) 2006, 2007 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -32,7 +32,12 @@ dnl eval is necessary to expand ac_cpp.
 dnl Ultrix and Pyramid sh refuse to redirect output of eval, so use subshell.
       AS_VAR_SET(gl_absolute_header,
 [`(eval "$ac_cpp conftest.$ac_ext") 2>&AS_MESSAGE_LOG_FD |
-sed -n '\#/]m4_quote(m4_defn([gl_HEADER_NAME]))[#{s#.*"\(.*/]m4_quote(m4_defn([gl_HEADER_NAME]))[\)".*#\1#;s#^/[^/]#//&#;p;q;}'`])
+sed -n '\#/]m4_quote(m4_defn([gl_HEADER_NAME]))[#{
+        s#.*"\(.*/]m4_quote(m4_defn([gl_HEADER_NAME]))[\)".*#\1#
+        s#^/[^/]#//&#
+        p
+        q
+}'`])
     fi
     AS_VAR_POPDEF([ac_header_exists])dnl
     ])dnl
diff --git a/gl/m4/alloca.m4 b/gl/m4/alloca.m4
index eb62e0e7..95f54a6d 100644
--- a/gl/m4/alloca.m4
+++ b/gl/m4/alloca.m4
@@ -1,5 +1,5 @@
-# alloca.m4 serial 7
-dnl Copyright (C) 2002-2004, 2006 Free Software Foundation, Inc.
+# alloca.m4 serial 8
+dnl Copyright (C) 2002-2004, 2006, 2007 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -39,10 +39,6 @@ AC_DEFUN([gl_FUNC_ALLOCA],
     ALLOCA_H=alloca.h
   fi
   AC_SUBST([ALLOCA_H])
-
-  AC_DEFINE(HAVE_ALLOCA_H, 1,
-    [Define HAVE_ALLOCA_H for backward compatibility with older code
-     that includes <alloca.h> only if HAVE_ALLOCA_H is defined.])
 ])
 
 # Prerequisites of lib/alloca.c.
diff --git a/gl/m4/extensions.m4 b/gl/m4/extensions.m4
index 143a9e54..bcbb3cee 100644
--- a/gl/m4/extensions.m4
+++ b/gl/m4/extensions.m4
@@ -1,14 +1,14 @@
-# serial 4  -*- Autoconf -*-
+# serial 5  -*- Autoconf -*-
 # Enable extensions on systems that normally disable them.
 
-# Copyright (C) 2003, 2006 Free Software Foundation, Inc.
+# Copyright (C) 2003, 2006, 2007 Free Software Foundation, Inc.
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
 
 # This definition of AC_USE_SYSTEM_EXTENSIONS is stolen from CVS
 # Autoconf.  Perhaps we can remove this once we can assume Autoconf
-# 2.61 or later everywhere, but since CVS Autoconf mutates rapidly
+# 2.62 or later everywhere, but since CVS Autoconf mutates rapidly
 # enough in this area it's likely we'll need to redefine
 # AC_USE_SYSTEM_EXTENSIONS for quite some time.
 
@@ -16,26 +16,48 @@
 # ------------------------
 # Enable extensions on systems that normally disable them,
 # typically due to standards-conformance issues.
+# Remember that #undef in AH_VERBATIM gets replaced with #define by
+# AC_DEFINE.  The goal here is to define all known feature-enabling
+# macros, then, if reports of conflicts are made, disable macros that
+# cause problems on some platforms (such as __EXTENSIONS__).
 AC_DEFUN([AC_USE_SYSTEM_EXTENSIONS],
-[
-  AC_BEFORE([$0], [AC_COMPILE_IFELSE])
-  AC_BEFORE([$0], [AC_RUN_IFELSE])
+[AC_BEFORE([$0], [AC_COMPILE_IFELSE])dnl
+AC_BEFORE([$0], [AC_RUN_IFELSE])dnl
 
-  AC_REQUIRE([AC_GNU_SOURCE])
-  AC_REQUIRE([AC_AIX])
-  AC_REQUIRE([AC_MINIX])
+  AC_CHECK_HEADER([minix/config.h], [MINIX=yes], [MINIX=])
+  if test "$MINIX" = yes; then
+    AC_DEFINE([_POSIX_SOURCE], [1],
+      [Define to 1 if you need to in order for `stat' and other
+       things to work.])
+    AC_DEFINE([_POSIX_1_SOURCE], [2],
+      [Define to 2 if the system does not provide POSIX.1 features
+       except with this defined.])
+    AC_DEFINE([_MINIX], [1],
+      [Define to 1 if on MINIX.])
+  fi
 
   AH_VERBATIM([__EXTENSIONS__],
-[/* Enable extensions on Solaris.  */
-#ifndef __EXTENSIONS__
-# undef __EXTENSIONS__
+[/* Enable extensions on AIX 3, Interix.  */
+#ifndef _ALL_SOURCE
+# undef _ALL_SOURCE
+#endif
+/* Enable GNU extensions on systems that have them.  */
+#ifndef _GNU_SOURCE
+# undef _GNU_SOURCE
 #endif
+/* Enable threading extensions on Solaris.  */
 #ifndef _POSIX_PTHREAD_SEMANTICS
 # undef _POSIX_PTHREAD_SEMANTICS
 #endif
+/* Enable extensions on HP NonStop.  */
 #ifndef _TANDEM_SOURCE
 # undef _TANDEM_SOURCE
-#endif])
+#endif
+/* Enable general extensions on Solaris.  */
+#ifndef __EXTENSIONS__
+# undef __EXTENSIONS__
+#endif
+])
   AC_CACHE_CHECK([whether it is safe to define __EXTENSIONS__],
     [ac_cv_safe_to_define___extensions__],
     [AC_COMPILE_IFELSE(
@@ -46,9 +68,11 @@ AC_DEFUN([AC_USE_SYSTEM_EXTENSIONS],
        [ac_cv_safe_to_define___extensions__=no])])
   test $ac_cv_safe_to_define___extensions__ = yes &&
     AC_DEFINE([__EXTENSIONS__])
+  AC_DEFINE([_ALL_SOURCE])
+  AC_DEFINE([_GNU_SOURCE])
   AC_DEFINE([_POSIX_PTHREAD_SEMANTICS])
   AC_DEFINE([_TANDEM_SOURCE])
-])
+])# AC_USE_SYSTEM_EXTENSIONS
 
 # gl_USE_SYSTEM_EXTENSIONS
 # ------------------------
diff --git a/gl/m4/float_h.m4 b/gl/m4/float_h.m4
new file mode 100644
index 00000000..d36e3a46
--- /dev/null
+++ b/gl/m4/float_h.m4
@@ -0,0 +1,19 @@
+# float_h.m4 serial 3
+dnl Copyright (C) 2007 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+AC_DEFUN([gl_FLOAT_H],
+[
+  AC_REQUIRE([AC_PROG_CC])
+  AC_REQUIRE([AC_CANONICAL_HOST])
+  FLOAT_H=
+  case "$host_os" in
+    beos* | openbsd*)
+      FLOAT_H=float.h
+      gl_CHECK_NEXT_HEADERS([float.h])
+      ;;
+  esac
+  AC_SUBST([FLOAT_H])
+])
diff --git a/gl/m4/fsusage.m4 b/gl/m4/fsusage.m4
index 08bf06c9..18eedbca 100644
--- a/gl/m4/fsusage.m4
+++ b/gl/m4/fsusage.m4
@@ -1,8 +1,7 @@
-#serial 22
+#serial 23
 # Obtaining file system usage information.
 
-# Copyright (C) 1997, 1998, 2000, 2001, 2003, 2004, 2005, 2006 Free Software
-# Foundation, Inc.
+# Copyright (C) 1997, 1998, 2000, 2001, 2003-2007 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -55,6 +54,11 @@ one of the corresponding file systems is hard-mounted, but not available.
 statvfs in GNU libc on BeOS operates differently: it only makes a system
 call.
 #endif
+
+#ifdef __osf__
+"Do not use Tru64's statvfs implementation"
+#endif
+
 #include <sys/statvfs.h>],
                               [struct statvfs fsd; statvfs (0, &fsd);],
                               fu_cv_sys_stat_statvfs=yes,
diff --git a/gl/m4/getaddrinfo.m4 b/gl/m4/getaddrinfo.m4
index db285d94..5d36c195 100644
--- a/gl/m4/getaddrinfo.m4
+++ b/gl/m4/getaddrinfo.m4
@@ -1,15 +1,31 @@
-# getaddrinfo.m4 serial 11
-dnl Copyright (C) 2004, 2005, 2006 Free Software Foundation, Inc.
+# getaddrinfo.m4 serial 15
+dnl Copyright (C) 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 
 AC_DEFUN([gl_GETADDRINFO],
 [
+  AC_REQUIRE([gl_HEADER_SYS_SOCKET])dnl for HAVE_SYS_SOCKET_H, HAVE_WINSOCK2_H
   AC_MSG_NOTICE([checking how to do getaddrinfo, freeaddrinfo and getnameinfo])
 
+  AC_CHECK_HEADERS_ONCE(netdb.h)
+
   AC_SEARCH_LIBS(getaddrinfo, [nsl socket])
-  AC_CHECK_FUNCS(getaddrinfo,, [
+  AC_CACHE_CHECK([for getaddrinfo], [gl_cv_func_getaddrinfo], [
+    AC_TRY_LINK([
+#include <sys/types.h>
+#ifdef HAVE_SYS_SOCKET_H
+#include <sys/socket.h>
+#endif
+#ifdef HAVE_NETDB_H
+#include <netdb.h>
+#endif
+#include <stddef.h>
+], [getaddrinfo("", "", NULL, NULL);],
+      [gl_cv_func_getaddrinfo=yes],
+      [gl_cv_func_getaddrinfo=no])])
+  if test $gl_cv_func_getaddrinfo = no; then
     AC_CACHE_CHECK(for getaddrinfo in ws2tcpip.h and -lws2_32,
                    gl_cv_w32_getaddrinfo, [
       gl_cv_w32_getaddrinfo=no
@@ -19,21 +35,46 @@ AC_DEFUN([gl_GETADDRINFO],
 #ifdef HAVE_WS2TCPIP_H
 #include <ws2tcpip.h>
 #endif
-], [getaddrinfo(0, 0, 0, 0);], gl_cv_w32_getaddrinfo=yes)
+#include <stddef.h>
+], [getaddrinfo(NULL, NULL, NULL, NULL);], gl_cv_w32_getaddrinfo=yes)
     LIBS="$am_save_LIBS"])
     if test "$gl_cv_w32_getaddrinfo" = "yes"; then
       LIBS="$LIBS -lws2_32"
     else
       AC_LIBOBJ(getaddrinfo)
     fi
-    ])
+  fi
+
+  # We can't use AC_REPLACE_FUNCS here because gai_strerror may be an
+  # inline function declared in ws2tcpip.h, so we need to get that
+  # header included somehow.
+  AC_CACHE_CHECK([for gai_strerror (possibly via ws2tcpip.h)],
+    gl_cv_func_gai_strerror, [
+      AC_TRY_LINK([
+#include <sys/types.h>
+#ifdef HAVE_SYS_SOCKET_H
+#include <sys/socket.h>
+#endif
+#ifdef HAVE_NETDB_H
+#include <netdb.h>
+#endif
+#ifdef HAVE_WS2TCPIP_H
+#include <ws2tcpip.h>
+#endif
+#include <stddef.h>
+], [gai_strerror (NULL);],
+        [gl_cv_func_gai_strerror=yes],
+        [gl_cv_func_gai_strerror=no])])
+  if test $gl_cv_func_gai_strerror = no; then
+    AC_LIBOBJ(gai_strerror)
+  fi
 
-  AC_REPLACE_FUNCS(gai_strerror)
   gl_PREREQ_GETADDRINFO
 ])
 
 # Prerequisites of lib/getaddrinfo.h and lib/getaddrinfo.c.
 AC_DEFUN([gl_PREREQ_GETADDRINFO], [
+  AC_REQUIRE([gl_HEADER_SYS_SOCKET])dnl for HAVE_SYS_SOCKET_H, HAVE_WINSOCK2_H
   AC_SEARCH_LIBS(gethostbyname, [inet nsl])
   AC_SEARCH_LIBS(getservbyname, [inet nsl socket xnet])
   AC_CHECK_FUNCS(gethostbyname,, [
@@ -46,7 +87,8 @@ AC_DEFUN([gl_PREREQ_GETADDRINFO], [
 #ifdef HAVE_WINSOCK2_H
 #include <winsock2.h>
 #endif
-], [gethostbyname(0);], gl_cv_w32_gethostbyname=yes)
+#include <stddef.h>
+], [gethostbyname(NULL);], gl_cv_w32_gethostbyname=yes)
     LIBS="$am_save_LIBS"])
     if test "$gl_cv_w32_gethostbyname" = "yes"; then
       LIBS="$LIBS -lws2_32"
@@ -56,7 +98,7 @@ AC_DEFUN([gl_PREREQ_GETADDRINFO], [
   AC_REQUIRE([gl_SOCKET_FAMILIES])
   AC_REQUIRE([gl_HEADER_SYS_SOCKET])
   AC_REQUIRE([AC_C_INLINE])
-  AC_REQUIRE([AC_GNU_SOURCE])
+  AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
   AC_CHECK_HEADERS_ONCE(netinet/in.h netdb.h)
   AC_CHECK_DECLS([getaddrinfo, freeaddrinfo, gai_strerror, getnameinfo],,,[
   /* sys/types.h is not needed according to POSIX, but the
diff --git a/gl/m4/getloadavg.m4 b/gl/m4/getloadavg.m4
index 82437291..c1547c74 100644
--- a/gl/m4/getloadavg.m4
+++ b/gl/m4/getloadavg.m4
@@ -31,6 +31,10 @@ AC_CHECK_FUNCS(pstat_getdynamic)
 AC_CHECK_LIB(kstat, kstat_open)
 test $ac_cv_lib_kstat_kstat_open = yes && gl_have_func=yes
 
+# AIX has libperfstat which does not require root
+AC_CHECK_LIB(perfstat, perfstat_cpu_total)
+test $ac_cv_lib_perfstat_perfstat_cpu_total = yes && gl_have_func=yes
+
 # Some systems with -lutil have (and need) -lkvm as well, some do not.
 # On Solaris, -lkvm requires nlist from -lelf, so check that first
 # to get the right answer into the cache.
diff --git a/gl/m4/gettext.m4 b/gl/m4/gettext.m4
index 91c345e9..c9ae1f7d 100644
--- a/gl/m4/gettext.m4
+++ b/gl/m4/gettext.m4
@@ -1,5 +1,5 @@
-# gettext.m4 serial 59 (gettext-0.16.1)
-dnl Copyright (C) 1995-2006 Free Software Foundation, Inc.
+# gettext.m4 serial 60 (gettext-0.17)
+dnl Copyright (C) 1995-2007 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -362,44 +362,6 @@ return * gettext ("")$gt_expression_test_code + _nl_msg_cat_cntr + *_nl_expand_a
 ])
 
 
-dnl Checks for special options needed on MacOS X.
-dnl Defines INTL_MACOSX_LIBS.
-AC_DEFUN([gt_INTL_MACOSX],
-[
-  dnl Check for API introduced in MacOS X 10.2.
-  AC_CACHE_CHECK([for CFPreferencesCopyAppValue],
-    gt_cv_func_CFPreferencesCopyAppValue,
-    [gt_save_LIBS="$LIBS"
-     LIBS="$LIBS -Wl,-framework -Wl,CoreFoundation"
-     AC_TRY_LINK([#include <CoreFoundation/CFPreferences.h>],
-       [CFPreferencesCopyAppValue(NULL, NULL)],
-       [gt_cv_func_CFPreferencesCopyAppValue=yes],
-       [gt_cv_func_CFPreferencesCopyAppValue=no])
-     LIBS="$gt_save_LIBS"])
-  if test $gt_cv_func_CFPreferencesCopyAppValue = yes; then
-    AC_DEFINE([HAVE_CFPREFERENCESCOPYAPPVALUE], 1,
-      [Define to 1 if you have the MacOS X function CFPreferencesCopyAppValue in the CoreFoundation framework.])
-  fi
-  dnl Check for API introduced in MacOS X 10.3.
-  AC_CACHE_CHECK([for CFLocaleCopyCurrent], gt_cv_func_CFLocaleCopyCurrent,
-    [gt_save_LIBS="$LIBS"
-     LIBS="$LIBS -Wl,-framework -Wl,CoreFoundation"
-     AC_TRY_LINK([#include <CoreFoundation/CFLocale.h>], [CFLocaleCopyCurrent();],
-       [gt_cv_func_CFLocaleCopyCurrent=yes],
-       [gt_cv_func_CFLocaleCopyCurrent=no])
-     LIBS="$gt_save_LIBS"])
-  if test $gt_cv_func_CFLocaleCopyCurrent = yes; then
-    AC_DEFINE([HAVE_CFLOCALECOPYCURRENT], 1,
-      [Define to 1 if you have the MacOS X function CFLocaleCopyCurrent in the CoreFoundation framework.])
-  fi
-  INTL_MACOSX_LIBS=
-  if test $gt_cv_func_CFPreferencesCopyAppValue = yes || test $gt_cv_func_CFLocaleCopyCurrent = yes; then
-    INTL_MACOSX_LIBS="-Wl,-framework -Wl,CoreFoundation"
-  fi
-  AC_SUBST([INTL_MACOSX_LIBS])
-])
-
-
 dnl gt_NEEDS_INIT ensures that the gt_needs variable is initialized.
 m4_define([gt_NEEDS_INIT],
 [
diff --git a/gl/m4/gnulib-cache.m4 b/gl/m4/gnulib-cache.m4
index e78c8604..6da4d657 100644
--- a/gl/m4/gnulib-cache.m4
+++ b/gl/m4/gnulib-cache.m4
@@ -15,7 +15,7 @@
 
 
 # Specification in the form of a command-line invocation:
-#   gnulib-tool --import --dir=. --lib=libgnu --source-base=gl --m4-base=gl/m4 --doc-base=doc --aux-dir=. --no-libtool --macro-prefix=gl dirname fsusage getaddrinfo gethostname getloadavg getopt gettext mountlist regex vasprintf vsnprintf
+#   gnulib-tool --import --dir=. --lib=libgnu --source-base=gl --m4-base=gl/m4 --doc-base=doc --aux-dir=build-aux --no-libtool --macro-prefix=gl dirname fsusage getaddrinfo gethostname getloadavg getopt gettext mountlist regex vasprintf vsnprintf
 
 # Specification in the form of a few gnulib-tool.m4 macro invocations:
 gl_LOCAL_DIR([])
@@ -23,8 +23,10 @@ gl_MODULES([dirname fsusage getaddrinfo gethostname getloadavg getopt gettext mo
 gl_AVOID([])
 gl_SOURCE_BASE([gl])
 gl_M4_BASE([gl/m4])
+gl_PO_BASE([])
 gl_DOC_BASE([doc])
 gl_TESTS_BASE([tests])
 gl_LIB([libgnu])
 gl_MAKEFILE_NAME([])
 gl_MACRO_PREFIX([gl])
+gl_PO_DOMAIN([])
diff --git a/gl/m4/gnulib-common.m4 b/gl/m4/gnulib-common.m4
index 53980108..9336d726 100644
--- a/gl/m4/gnulib-common.m4
+++ b/gl/m4/gnulib-common.m4
@@ -1,4 +1,4 @@
-# gnulib-common.m4 serial 2
+# gnulib-common.m4 serial 3
 dnl Copyright (C) 2007 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -20,3 +20,46 @@ m4_ifdef([AC_PROG_MKDIR_P], [], [
     [AC_REQUIRE([AM_PROG_MKDIR_P])dnl defined by automake
      MKDIR_P='$(mkdir_p)'
      AC_SUBST([MKDIR_P])])])
+
+# AC_C_RESTRICT
+# This definition overrides the AC_C_RESTRICT macro from autoconf 2.60..2.61,
+# so that mixed use of GNU C and GNU C++ and mixed use of Sun C and Sun C++
+# works.
+# This definition can be removed once autoconf >= 2.62 can be assumed.
+AC_DEFUN([AC_C_RESTRICT],
+[AC_CACHE_CHECK([for C/C++ restrict keyword], ac_cv_c_restrict,
+  [ac_cv_c_restrict=no
+   # The order here caters to the fact that C++ does not require restrict.
+   for ac_kw in __restrict __restrict__ _Restrict restrict; do
+     AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
+      [[typedef int * int_ptr;
+        int foo (int_ptr $ac_kw ip) {
+        return ip[0];
+       }]],
+      [[int s[1];
+        int * $ac_kw t = s;
+        t[0] = 0;
+        return foo(t)]])],
+      [ac_cv_c_restrict=$ac_kw])
+     test "$ac_cv_c_restrict" != no && break
+   done
+  ])
+ AH_VERBATIM([restrict],
+[/* Define to the equivalent of the C99 'restrict' keyword, or to
+   nothing if this is not supported.  Do not define if restrict is
+   supported directly.  */
+#undef restrict
+/* Work around a bug in Sun C++: it does not support _Restrict, even
+   though the corresponding Sun C compiler does, which causes
+   "#define restrict _Restrict" in the previous line.  Perhaps some future
+   version of Sun C++ will work with _Restrict; if so, it'll probably
+   define __RESTRICT, just as Sun C does.  */
+#if defined __SUNPRO_CC && !defined __RESTRICT
+# define _Restrict
+#endif])
+ case $ac_cv_c_restrict in
+   restrict) ;;
+   no) AC_DEFINE([restrict], []) ;;
+   *)  AC_DEFINE_UNQUOTED([restrict], [$ac_cv_c_restrict]) ;;
+ esac
+])
diff --git a/gl/m4/gnulib-comp.m4 b/gl/m4/gnulib-comp.m4
index ed4da7d9..a17e36ad 100644
--- a/gl/m4/gnulib-comp.m4
+++ b/gl/m4/gnulib-comp.m4
@@ -27,78 +27,94 @@ AC_DEFUN([gl_EARLY],
   AC_REQUIRE([AC_PROG_RANLIB])
   AC_REQUIRE([AC_GNU_SOURCE])
   AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
-  AC_REQUIRE([gl_LOCK_EARLY])
 ])
 
 # This macro should be invoked from ./configure.in, in the section
 # "Check for header files, types and library functions".
 AC_DEFUN([gl_INIT],
 [
-  m4_pushdef([AC_LIBOBJ], m4_defn([gl_LIBOBJ]))
-  m4_pushdef([AC_REPLACE_FUNCS], m4_defn([gl_REPLACE_FUNCS]))
-  m4_pushdef([AC_LIBSOURCES], m4_defn([gl_LIBSOURCES]))
   AM_CONDITIONAL([GL_COND_LIBTOOL], [false])
   gl_cond_libtool=false
   gl_libdeps=
   gl_ltlibdeps=
+  m4_pushdef([AC_LIBOBJ], m4_defn([gl_LIBOBJ]))
+  m4_pushdef([AC_REPLACE_FUNCS], m4_defn([gl_REPLACE_FUNCS]))
+  m4_pushdef([AC_LIBSOURCES], m4_defn([gl_LIBSOURCES]))
   gl_source_base='gl'
   gl_FUNC_ALLOCA
   gl_HEADER_ARPA_INET
+  AC_PROG_MKDIR_P
   gl_C_STRTOD
   gl_CLOEXEC
   gl_DIRNAME
   gl_DOUBLE_SLASH_ROOT
   gl_ERROR
+  m4_ifdef([AM_XGETTEXT_OPTION],
+    [AM_XGETTEXT_OPTION([--flag=error:3:c-format])
+     AM_XGETTEXT_OPTION([--flag=error_at_line:5:c-format])])
   gl_EXITFAIL
-  dnl gl_USE_SYSTEM_EXTENSIONS must be added quite early to configure.ac.
   gl_FCNTL_SAFER
   gl_MODULE_INDICATOR([fcntl-safer])
+  gl_FLOAT_H
   gl_FSUSAGE
   gl_GETADDRINFO
   gl_FUNC_GETHOSTNAME
   gl_GETLOADAVG([$gl_source_base])
   gl_GETOPT
   dnl you must add AM_GNU_GETTEXT([external]) or similar to configure.ac.
-  AM_GNU_GETTEXT_VERSION([0.15])
+  AM_GNU_GETTEXT_VERSION([0.17])
+  AC_SUBST([LIBINTL])
+  AC_SUBST([LTLIBINTL])
   gl_INET_NTOP
   gl_INLINE
+  gl_LOCALCHARSET
+  LOCALCHARSET_TESTS_ENVIRONMENT="CHARSETALIASDIR=\"\$(top_builddir)/$gl_source_base\""
+  AC_SUBST([LOCALCHARSET_TESTS_ENVIRONMENT])
   AC_FUNC_MALLOC
-  gl_MBCHAR
-  gl_MBITER
-  gl_FUNC_MEMCHR
-  gl_MINMAX
+  AC_DEFINE([GNULIB_MALLOC_GNU], 1, [Define to indicate the 'malloc' module.])
+  gl_FUNC_MALLOC_POSIX
+  gl_STDLIB_MODULE_INDICATOR([malloc-posix])
   gl_MOUNTLIST
   gl_HEADER_NETINET_IN
+  AC_PROG_MKDIR_P
   gl_REGEX
   gl_SAFE_READ
   gl_SAFE_WRITE
   gl_SIZE_MAX
   gl_FUNC_SNPRINTF
+  gl_STDIO_MODULE_INDICATOR([snprintf])
   gl_TYPE_SOCKLEN_T
   gt_TYPE_SSIZE_T
   AM_STDBOOL_H
   gl_STDINT_H
-  gl_STRCASE
+  gl_STDIO_H
+  gl_STDLIB_H
   gl_FUNC_STRDUP
+  gl_STRING_MODULE_INDICATOR([strdup])
+  gl_FUNC_STRERROR
+  gl_STRING_MODULE_INDICATOR([strerror])
+  gl_HEADER_STRING_H
   gl_FUNC_STRNDUP
+  gl_STRING_MODULE_INDICATOR([strndup])
   gl_FUNC_STRNLEN
+  gl_STRING_MODULE_INDICATOR([strnlen])
   gl_HEADER_SYS_SOCKET
   AC_PROG_MKDIR_P
-  gl_HEADER_UNISTD
+  gl_UNISTD_H
   gl_UNISTD_SAFER
   gl_FUNC_VASNPRINTF
   gl_FUNC_VASPRINTF
+  gl_STDIO_MODULE_INDICATOR([vasprintf])
+  m4_ifdef([AM_XGETTEXT_OPTION],
+    [AM_XGETTEXT_OPTION([--flag=asprintf:2:c-format])
+     AM_XGETTEXT_OPTION([--flag=vasprintf:2:c-format])])
   gl_FUNC_VSNPRINTF
+  gl_STDIO_MODULE_INDICATOR([vsnprintf])
   gl_WCHAR_H
   gl_WCTYPE_H
-  gl_FUNC_WCWIDTH
   gl_XALLOC
   gl_XSIZE
   gl_XSTRNDUP
-  LIBGNU_LIBDEPS="$gl_libdeps"
-  AC_SUBST([LIBGNU_LIBDEPS])
-  LIBGNU_LTLIBDEPS="$gl_ltlibdeps"
-  AC_SUBST([LIBGNU_LTLIBDEPS])
   m4_popdef([AC_LIBSOURCES])
   m4_popdef([AC_REPLACE_FUNCS])
   m4_popdef([AC_LIBOBJ])
@@ -116,29 +132,112 @@ AC_DEFUN([gl_INIT],
     AC_SUBST([gl_LIBOBJS], [$gl_libobjs])
     AC_SUBST([gl_LTLIBOBJS], [$gl_ltlibobjs])
   ])
+  gltests_libdeps=
+  gltests_ltlibdeps=
+  m4_pushdef([AC_LIBOBJ], m4_defn([gltests_LIBOBJ]))
+  m4_pushdef([AC_REPLACE_FUNCS], m4_defn([gltests_REPLACE_FUNCS]))
+  m4_pushdef([AC_LIBSOURCES], m4_defn([gltests_LIBSOURCES]))
+  gl_source_base='tests'
+  m4_popdef([AC_LIBSOURCES])
+  m4_popdef([AC_REPLACE_FUNCS])
+  m4_popdef([AC_LIBOBJ])
+  AC_CONFIG_COMMANDS_PRE([
+    gltests_libobjs=
+    gltests_ltlibobjs=
+    if test -n "$gltests_LIBOBJS"; then
+      # Remove the extension.
+      sed_drop_objext='s/\.o$//;s/\.obj$//'
+      for i in `for i in $gltests_LIBOBJS; do echo "$i"; done | sed "$sed_drop_objext" | sort | uniq`; do
+        gltests_libobjs="$gltests_libobjs $i.$ac_objext"
+        gltests_ltlibobjs="$gltests_ltlibobjs $i.lo"
+      done
+    fi
+    AC_SUBST([gltests_LIBOBJS], [$gltests_libobjs])
+    AC_SUBST([gltests_LTLIBOBJS], [$gltests_ltlibobjs])
+  ])
+  LIBGNU_LIBDEPS="$gl_libdeps"
+  AC_SUBST([LIBGNU_LIBDEPS])
+  LIBGNU_LTLIBDEPS="$gl_ltlibdeps"
+  AC_SUBST([LIBGNU_LTLIBDEPS])
 ])
 
 # Like AC_LIBOBJ, except that the module name goes
 # into gl_LIBOBJS instead of into LIBOBJS.
-AC_DEFUN([gl_LIBOBJ],
-  [gl_LIBOBJS="$gl_LIBOBJS $1.$ac_objext"])
+AC_DEFUN([gl_LIBOBJ], [
+  AS_LITERAL_IF([$1], [gl_LIBSOURCES([$1.c])])dnl
+  gl_LIBOBJS="$gl_LIBOBJS $1.$ac_objext"
+])
+
+# m4_foreach_w is provided by autoconf-2.59c and later.
+# This definition is to accommodate developers using versions
+# of autoconf older than that.
+m4_ifndef([m4_foreach_w],
+  [m4_define([m4_foreach_w],
+    [m4_foreach([$1], m4_split(m4_normalize([$2]), [ ]), [$3])])])
 
 # Like AC_REPLACE_FUNCS, except that the module name goes
 # into gl_LIBOBJS instead of into LIBOBJS.
-AC_DEFUN([gl_REPLACE_FUNCS],
-  [AC_CHECK_FUNCS([$1], , [gl_LIBOBJ($ac_func)])])
+AC_DEFUN([gl_REPLACE_FUNCS], [
+  m4_foreach_w([gl_NAME], [$1], [AC_LIBSOURCES(gl_NAME[.c])])dnl
+  AC_CHECK_FUNCS([$1], , [gl_LIBOBJ($ac_func)])
+])
+
+# Like AC_LIBSOURCES, except the directory where the source file is
+# expected is derived from the gnulib-tool parametrization,
+# and alloca is special cased (for the alloca-opt module).
+# We could also entirely rely on EXTRA_lib..._SOURCES.
+AC_DEFUN([gl_LIBSOURCES], [
+  m4_foreach([_gl_NAME], [$1], [
+    m4_if(_gl_NAME, [alloca.c], [], [
+      m4_syscmd([test -r gl/]_gl_NAME[ || test ! -d gl])dnl
+      m4_if(m4_sysval, [0], [],
+        [AC_FATAL([missing gl/]_gl_NAME)])
+    ])
+  ])
+])
+
+# Like AC_LIBOBJ, except that the module name goes
+# into gltests_LIBOBJS instead of into LIBOBJS.
+AC_DEFUN([gltests_LIBOBJ], [
+  AS_LITERAL_IF([$1], [gltests_LIBSOURCES([$1.c])])dnl
+  gltests_LIBOBJS="$gltests_LIBOBJS $1.$ac_objext"
+])
+
+# m4_foreach_w is provided by autoconf-2.59c and later.
+# This definition is to accommodate developers using versions
+# of autoconf older than that.
+m4_ifndef([m4_foreach_w],
+  [m4_define([m4_foreach_w],
+    [m4_foreach([$1], m4_split(m4_normalize([$2]), [ ]), [$3])])])
 
-# Like AC_LIBSOURCES, except that it does nothing.
-# We rely on EXTRA_lib..._SOURCES instead.
-AC_DEFUN([gl_LIBSOURCES],
-  [])
+# Like AC_REPLACE_FUNCS, except that the module name goes
+# into gltests_LIBOBJS instead of into LIBOBJS.
+AC_DEFUN([gltests_REPLACE_FUNCS], [
+  m4_foreach_w([gl_NAME], [$1], [AC_LIBSOURCES(gl_NAME[.c])])dnl
+  AC_CHECK_FUNCS([$1], , [gltests_LIBOBJ($ac_func)])
+])
+
+# Like AC_LIBSOURCES, except the directory where the source file is
+# expected is derived from the gnulib-tool parametrization,
+# and alloca is special cased (for the alloca-opt module).
+# We could also entirely rely on EXTRA_lib..._SOURCES.
+AC_DEFUN([gltests_LIBSOURCES], [
+  m4_foreach([_gl_NAME], [$1], [
+    m4_if(_gl_NAME, [alloca.c], [], [
+      m4_syscmd([test -r tests/]_gl_NAME[ || test ! -d tests])dnl
+      m4_if(m4_sysval, [0], [],
+        [AC_FATAL([missing tests/]_gl_NAME)])
+    ])
+  ])
+])
 
 # This macro records the list of files which have been installed by
 # gnulib-tool and may be removed by future gnulib-tool invocations.
 AC_DEFUN([gl_FILE_LIST], [
   build-aux/config.rpath
+  build-aux/link-warning.h
   lib/alloca.c
-  lib/alloca_.h
+  lib/alloca.in.h
   lib/asnprintf.c
   lib/asprintf.c
   lib/basename.c
@@ -146,18 +245,20 @@ AC_DEFUN([gl_FILE_LIST], [
   lib/c-strtod.h
   lib/cloexec.c
   lib/cloexec.h
+  lib/config.charset
   lib/creat-safer.c
   lib/dirname.c
   lib/dirname.h
   lib/dup-safer.c
   lib/error.c
   lib/error.h
-  lib/exit.h
   lib/exitfail.c
   lib/exitfail.h
   lib/fcntl--.h
   lib/fcntl-safer.h
   lib/fd-safer.c
+  lib/float+.h
+  lib/float.in.h
   lib/fsusage.c
   lib/fsusage.h
   lib/full-read.c
@@ -170,27 +271,27 @@ AC_DEFUN([gl_FILE_LIST], [
   lib/gethostname.c
   lib/getloadavg.c
   lib/getopt.c
+  lib/getopt.in.h
   lib/getopt1.c
-  lib/getopt_.h
   lib/getopt_int.h
   lib/gettext.h
   lib/inet_ntop.c
   lib/inet_ntop.h
   lib/intprops.h
+  lib/localcharset.c
+  lib/localcharset.h
   lib/malloc.c
-  lib/mbchar.c
-  lib/mbchar.h
-  lib/mbuiter.h
-  lib/memchr.c
-  lib/minmax.h
   lib/mountlist.c
   lib/mountlist.h
+  lib/netinet_in.in.h
   lib/open-safer.c
   lib/pipe-safer.c
   lib/printf-args.c
   lib/printf-args.h
   lib/printf-parse.c
   lib/printf-parse.h
+  lib/ref-add.sin
+  lib/ref-del.sin
   lib/regcomp.c
   lib/regex.c
   lib/regex.h
@@ -203,34 +304,26 @@ AC_DEFUN([gl_FILE_LIST], [
   lib/safe-write.h
   lib/size_max.h
   lib/snprintf.c
-  lib/snprintf.h
-  lib/socket_.h
-  lib/stdbool_.h
-  lib/stdint_.h
-  lib/strcase.h
-  lib/strcasecmp.c
+  lib/stdbool.in.h
+  lib/stdint.in.h
+  lib/stdio.in.h
+  lib/stdlib.in.h
   lib/strdup.c
-  lib/strdup.h
+  lib/strerror.c
+  lib/string.in.h
   lib/stripslash.c
-  lib/strncasecmp.c
   lib/strndup.c
-  lib/strndup.h
   lib/strnlen.c
-  lib/strnlen.h
-  lib/strnlen1.c
-  lib/strnlen1.h
+  lib/sys_socket.in.h
   lib/unistd--.h
   lib/unistd-safer.h
-  lib/unistd_.h
+  lib/unistd.in.h
   lib/vasnprintf.c
   lib/vasnprintf.h
   lib/vasprintf.c
-  lib/vasprintf.h
   lib/vsnprintf.c
-  lib/vsnprintf.h
-  lib/wchar_.h
-  lib/wctype_.h
-  lib/wcwidth.h
+  lib/wchar.in.h
+  lib/wctype.in.h
   lib/xalloc-die.c
   lib/xalloc.h
   lib/xmalloc.c
@@ -251,6 +344,7 @@ AC_DEFUN([gl_FILE_LIST], [
   m4/exitfail.m4
   m4/extensions.m4
   m4/fcntl-safer.m4
+  m4/float_h.m4
   m4/fstypename.m4
   m4/fsusage.m4
   m4/getaddrinfo.m4
@@ -262,11 +356,13 @@ AC_DEFUN([gl_FILE_LIST], [
   m4/glibc21.m4
   m4/gnulib-common.m4
   m4/iconv.m4
+  m4/include_next.m4
   m4/inet_ntop.m4
   m4/inline.m4
   m4/intdiv0.m4
   m4/intl.m4
   m4/intldir.m4
+  m4/intlmacosx.m4
   m4/intmax.m4
   m4/intmax_t.m4
   m4/inttypes-pri.m4
@@ -275,15 +371,11 @@ AC_DEFUN([gl_FILE_LIST], [
   m4/lib-ld.m4
   m4/lib-link.m4
   m4/lib-prefix.m4
+  m4/localcharset.m4
   m4/lock.m4
-  m4/longdouble.m4
   m4/longlong.m4
   m4/ls-mntd-fs.m4
-  m4/mbchar.m4
-  m4/mbiter.m4
-  m4/mbrtowc.m4
-  m4/memchr.m4
-  m4/minmax.m4
+  m4/malloc.m4
   m4/mountlist.m4
   m4/netinet_in_h.m4
   m4/nls.m4
@@ -302,13 +394,15 @@ AC_DEFUN([gl_FILE_LIST], [
   m4/stdbool.m4
   m4/stdint.m4
   m4/stdint_h.m4
-  m4/strcase.m4
+  m4/stdio_h.m4
+  m4/stdlib_h.m4
   m4/strdup.m4
+  m4/strerror.m4
+  m4/string_h.m4
   m4/strndup.m4
   m4/strnlen.m4
   m4/sys_socket_h.m4
   m4/uintmax_t.m4
-  m4/ulonglong.m4
   m4/unistd-safer.m4
   m4/unistd_h.m4
   m4/vasnprintf.m4
@@ -318,7 +412,6 @@ AC_DEFUN([gl_FILE_LIST], [
   m4/wchar.m4
   m4/wchar_t.m4
   m4/wctype.m4
-  m4/wcwidth.m4
   m4/wint_t.m4
   m4/xalloc.m4
   m4/xsize.m4
diff --git a/gl/m4/iconv.m4 b/gl/m4/iconv.m4
index 654c4158..66bc76f4 100644
--- a/gl/m4/iconv.m4
+++ b/gl/m4/iconv.m4
@@ -1,5 +1,5 @@
-# iconv.m4 serial AM4 (gettext-0.11.3)
-dnl Copyright (C) 2000-2002 Free Software Foundation, Inc.
+# iconv.m4 serial AM6 (gettext-0.17)
+dnl Copyright (C) 2000-2002, 2007 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -21,6 +21,7 @@ AC_DEFUN([AM_ICONV_LINK],
 [
   dnl Some systems have iconv in libc, some have it in libiconv (OSF/1 and
   dnl those with the standalone portable GNU libiconv installed).
+  AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
 
   dnl Search for libiconv and define LIBICONV, LTLIBICONV and INCICONV
   dnl accordingly.
@@ -33,7 +34,7 @@ AC_DEFUN([AM_ICONV_LINK],
   am_save_CPPFLAGS="$CPPFLAGS"
   AC_LIB_APPENDTOVAR([CPPFLAGS], [$INCICONV])
 
-  AC_CACHE_CHECK(for iconv, am_cv_func_iconv, [
+  AC_CACHE_CHECK([for iconv], am_cv_func_iconv, [
     am_cv_func_iconv="no, consider installing GNU libiconv"
     am_cv_lib_iconv=no
     AC_TRY_LINK([#include <stdlib.h>
@@ -56,7 +57,85 @@ AC_DEFUN([AM_ICONV_LINK],
     fi
   ])
   if test "$am_cv_func_iconv" = yes; then
-    AC_DEFINE(HAVE_ICONV, 1, [Define if you have the iconv() function.])
+    AC_CACHE_CHECK([for working iconv], am_cv_func_iconv_works, [
+      dnl This tests against bugs in AIX 5.1 and HP-UX 11.11.
+      am_save_LIBS="$LIBS"
+      if test $am_cv_lib_iconv = yes; then
+        LIBS="$LIBS $LIBICONV"
+      fi
+      AC_TRY_RUN([
+#include <iconv.h>
+#include <string.h>
+int main ()
+{
+  /* Test against AIX 5.1 bug: Failures are not distinguishable from successful
+     returns.  */
+  {
+    iconv_t cd_utf8_to_88591 = iconv_open ("ISO8859-1", "UTF-8");
+    if (cd_utf8_to_88591 != (iconv_t)(-1))
+      {
+        static const char input[] = "\342\202\254"; /* EURO SIGN */
+        char buf[10];
+        const char *inptr = input;
+        size_t inbytesleft = strlen (input);
+        char *outptr = buf;
+        size_t outbytesleft = sizeof (buf);
+        size_t res = iconv (cd_utf8_to_88591,
+                            (char **) &inptr, &inbytesleft,
+                            &outptr, &outbytesleft);
+        if (res == 0)
+          return 1;
+      }
+  }
+#if 0 /* This bug could be worked around by the caller.  */
+  /* Test against HP-UX 11.11 bug: Positive return value instead of 0.  */
+  {
+    iconv_t cd_88591_to_utf8 = iconv_open ("utf8", "iso88591");
+    if (cd_88591_to_utf8 != (iconv_t)(-1))
+      {
+        static const char input[] = "\304rger mit b\366sen B\374bchen ohne Augenma\337";
+        char buf[50];
+        const char *inptr = input;
+        size_t inbytesleft = strlen (input);
+        char *outptr = buf;
+        size_t outbytesleft = sizeof (buf);
+        size_t res = iconv (cd_88591_to_utf8,
+                            (char **) &inptr, &inbytesleft,
+                            &outptr, &outbytesleft);
+        if ((int)res > 0)
+          return 1;
+      }
+  }
+#endif
+  /* Test against HP-UX 11.11 bug: No converter from EUC-JP to UTF-8 is
+     provided.  */
+  if (/* Try standardized names.  */
+      iconv_open ("UTF-8", "EUC-JP") == (iconv_t)(-1)
+      /* Try IRIX, OSF/1 names.  */
+      && iconv_open ("UTF-8", "eucJP") == (iconv_t)(-1)
+      /* Try AIX names.  */
+      && iconv_open ("UTF-8", "IBM-eucJP") == (iconv_t)(-1)
+      /* Try HP-UX names.  */
+      && iconv_open ("utf8", "eucJP") == (iconv_t)(-1))
+    return 1;
+  return 0;
+}], [am_cv_func_iconv_works=yes], [am_cv_func_iconv_works=no],
+        [case "$host_os" in
+           aix* | hpux*) am_cv_func_iconv_works="guessing no" ;;
+           *)            am_cv_func_iconv_works="guessing yes" ;;
+         esac])
+      LIBS="$am_save_LIBS"
+    ])
+    case "$am_cv_func_iconv_works" in
+      *no) am_func_iconv=no am_cv_lib_iconv=no ;;
+      *)   am_func_iconv=yes ;;
+    esac
+  else
+    am_func_iconv=no am_cv_lib_iconv=no
+  fi
+  if test "$am_func_iconv" = yes; then
+    AC_DEFINE(HAVE_ICONV, 1,
+      [Define if you have the iconv() function and it works.])
   fi
   if test "$am_cv_lib_iconv" = yes; then
     AC_MSG_CHECKING([how to link with libiconv])
diff --git a/gl/m4/include_next.m4 b/gl/m4/include_next.m4
new file mode 100644
index 00000000..7ce472bc
--- /dev/null
+++ b/gl/m4/include_next.m4
@@ -0,0 +1,107 @@
+# include_next.m4 serial 4
+dnl Copyright (C) 2006, 2007 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+dnl From Paul Eggert and Derek Price.
+
+AC_DEFUN([gl_INCLUDE_NEXT],
+[
+  AC_LANG_PREPROC_REQUIRE()
+  AC_CACHE_CHECK([whether the preprocessor supports include_next],
+    [gl_cv_have_include_next],
+    [rm -rf conftestd1 conftestd2
+     mkdir conftestd1 conftestd2
+     cat <<EOF > conftestd1/conftest.h
+#define DEFINED_IN_CONFTESTD1
+#include_next <conftest.h>
+#ifdef DEFINED_IN_CONFTESTD2
+int foo;
+#else
+#error "include_next doesn't work"
+#endif
+EOF
+     cat <<EOF > conftestd2/conftest.h
+#ifndef DEFINED_IN_CONFTESTD1
+#error "include_next test doesn't work"
+#endif
+#define DEFINED_IN_CONFTESTD2
+EOF
+     save_CPPFLAGS="$CPPFLAGS"
+     CPPFLAGS="$CPPFLAGS -Iconftestd1 -Iconftestd2"
+     AC_COMPILE_IFELSE([#include <conftest.h>],
+       [gl_cv_have_include_next=yes],
+       [gl_cv_have_include_next=no])
+     CPPFLAGS="$save_CPPFLAGS"
+     rm -rf conftestd1 conftestd2
+    ])
+  if test $gl_cv_have_include_next = yes; then
+
+    dnl FIXME: Remove HAVE_INCLUDE_NEXT and update everything that uses it
+    dnl to use @INCLUDE_NEXT@ instead.
+    AC_DEFINE([HAVE_INCLUDE_NEXT], 1,
+              [Define if your compiler supports the #include_next directive.])
+
+    INCLUDE_NEXT=include_next
+  else
+    INCLUDE_NEXT=include
+  fi
+  AC_SUBST([INCLUDE_NEXT])
+])
+
+# gl_CHECK_NEXT_HEADERS(HEADER1 HEADER2 ...)
+# ------------------------------------------
+# For each arg foo.h, if #include_next works, define NEXT_FOO_H to be
+# '<foo.h>'; otherwise define it to be
+# '"///usr/include/foo.h"', or whatever other absolute file name is suitable.
+# That way, a header file with the following line:
+#       #@INCLUDE_NEXT@ @NEXT_FOO_H@
+# behaves (after sed substitution) as if it contained
+#       #include_next <foo.h>
+# even if the compiler does not support include_next.
+# The three "///" are to pacify Sun C 5.8, which otherwise would say
+# "warning: #include of /usr/include/... may be non-portable".
+# Use `""', not `<>', so that the /// cannot be confused with a C99 comment.
+AC_DEFUN([gl_CHECK_NEXT_HEADERS],
+[
+  AC_REQUIRE([gl_INCLUDE_NEXT])
+  AC_CHECK_HEADERS_ONCE([$1])
+
+  AC_FOREACH([gl_HEADER_NAME], [$1],
+    [AS_VAR_PUSHDEF([gl_next_header],
+                    [gl_cv_next_]m4_quote(m4_defn([gl_HEADER_NAME])))
+     if test $gl_cv_have_include_next = yes; then
+       AS_VAR_SET([gl_next_header], ['<'gl_HEADER_NAME'>'])
+     else
+       AC_CACHE_CHECK(
+         [absolute name of <]m4_quote(m4_defn([gl_HEADER_NAME]))[>],
+         m4_quote(m4_defn([gl_next_header])),
+         [AS_VAR_PUSHDEF([gl_header_exists],
+                         [ac_cv_header_]m4_quote(m4_defn([gl_HEADER_NAME])))
+          if test AS_VAR_GET(gl_header_exists) = yes; then
+            AC_LANG_CONFTEST(
+              [AC_LANG_SOURCE(
+                 [[#include <]]m4_dquote(m4_defn([gl_HEADER_NAME]))[[>]]
+               )])
+            dnl eval is necessary to expand ac_cpp.
+            dnl Ultrix and Pyramid sh refuse to redirect output of eval,
+            dnl so use subshell.
+            AS_VAR_SET([gl_next_header],
+              ['"'`(eval "$ac_cpp conftest.$ac_ext") 2>&AS_MESSAGE_LOG_FD |
+               sed -n '\#/]m4_quote(m4_defn([gl_HEADER_NAME]))[#{
+                 s#.*"\(.*/]m4_quote(m4_defn([gl_HEADER_NAME]))[\)".*#\1#
+                 s#^/[^/]#//&#
+                 p
+                 q
+               }'`'"'])
+          else
+            AS_VAR_SET([gl_next_header], ['<'gl_HEADER_NAME'>'])
+          fi
+          AS_VAR_POPDEF([gl_header_exists])])
+     fi
+     AC_SUBST(
+       AS_TR_CPP([NEXT_]m4_quote(m4_defn([gl_HEADER_NAME]))),
+       [AS_VAR_GET([gl_next_header])])
+     AS_VAR_POPDEF([gl_next_header])])
+])
diff --git a/gl/m4/intdiv0.m4 b/gl/m4/intdiv0.m4
index b8d78176..8c8a6708 100644
--- a/gl/m4/intdiv0.m4
+++ b/gl/m4/intdiv0.m4
@@ -1,5 +1,5 @@
-# intdiv0.m4 serial 1 (gettext-0.11.3)
-dnl Copyright (C) 2002 Free Software Foundation, Inc.
+# intdiv0.m4 serial 2 (gettext-0.17)
+dnl Copyright (C) 2002, 2007 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -14,16 +14,27 @@ AC_DEFUN([gt_INTDIV0],
   AC_CACHE_CHECK([whether integer division by zero raises SIGFPE],
     gt_cv_int_divbyzero_sigfpe,
     [
-      AC_TRY_RUN([
+      gt_cv_int_divbyzero_sigfpe=
+changequote(,)dnl
+      case "$host_os" in
+        macos* | darwin[6-9]* | darwin[1-9][0-9]*)
+          # On MacOS X 10.2 or newer, just assume the same as when cross-
+          # compiling. If we were to perform the real test, 1 Crash Report
+          # dialog window would pop up.
+          case "$host_cpu" in
+            i[34567]86 | x86_64)
+              gt_cv_int_divbyzero_sigfpe="guessing yes" ;;
+          esac
+          ;;
+      esac
+changequote([,])dnl
+      if test -z "$gt_cv_int_divbyzero_sigfpe"; then
+        AC_TRY_RUN([
 #include <stdlib.h>
 #include <signal.h>
 
 static void
-#ifdef __cplusplus
 sigfpe_handler (int sig)
-#else
-sigfpe_handler (sig) int sig;
-#endif
 {
   /* Exit with code 0 if SIGFPE, with code 1 if any other signal.  */
   exit (sig != SIGFPE);
@@ -51,15 +62,18 @@ int main ()
   exit (1);
 }
 ], gt_cv_int_divbyzero_sigfpe=yes, gt_cv_int_divbyzero_sigfpe=no,
-        [
-          # Guess based on the CPU.
-          case "$host_cpu" in
-            alpha* | i[34567]86 | m68k | s390*)
-              gt_cv_int_divbyzero_sigfpe="guessing yes";;
-            *)
-              gt_cv_int_divbyzero_sigfpe="guessing no";;
-          esac
-        ])
+          [
+            # Guess based on the CPU.
+changequote(,)dnl
+            case "$host_cpu" in
+              alpha* | i[34567]86 | x86_64 | m68k | s390*)
+                gt_cv_int_divbyzero_sigfpe="guessing yes";;
+              *)
+                gt_cv_int_divbyzero_sigfpe="guessing no";;
+            esac
+changequote([,])dnl
+          ])
+      fi
     ])
   case "$gt_cv_int_divbyzero_sigfpe" in
     *yes) value=1;;
diff --git a/gl/m4/intl.m4 b/gl/m4/intl.m4
index dcefb118..934408bb 100644
--- a/gl/m4/intl.m4
+++ b/gl/m4/intl.m4
@@ -1,5 +1,5 @@
-# intl.m4 serial 3 (gettext-0.16)
-dnl Copyright (C) 1995-2006 Free Software Foundation, Inc.
+# intl.m4 serial 8 (gettext-0.17)
+dnl Copyright (C) 1995-2007 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -33,7 +33,6 @@ AC_DEFUN([AM_INTL_SUBDIR],
   AC_REQUIRE([gl_VISIBILITY])dnl
   AC_REQUIRE([gt_INTL_SUBDIR_CORE])dnl
   AC_REQUIRE([AC_TYPE_LONG_LONG_INT])dnl
-  AC_REQUIRE([gt_TYPE_LONGDOUBLE])dnl
   AC_REQUIRE([gt_TYPE_WCHAR_T])dnl
   AC_REQUIRE([gt_TYPE_WINT_T])dnl
   AC_REQUIRE([gl_AC_HEADER_INTTYPES_H])
@@ -98,7 +97,7 @@ AC_DEFUN([AM_INTL_SUBDIR],
   dnl    exported variables _also_ in the static library.
   if test "$enable_shared" = yes; then
     case "$host_os" in
-      cygwin*) is_woe32dll=yes ;;
+      mingw* | cygwin*) is_woe32dll=yes ;;
       *) is_woe32dll=no ;;
     esac
   else
@@ -107,6 +106,31 @@ AC_DEFUN([AM_INTL_SUBDIR],
   WOE32DLL=$is_woe32dll
   AC_SUBST([WOE32DLL])
 
+  dnl On mingw and Cygwin, we can activate special Makefile rules which add
+  dnl version information to the shared libraries and executables.
+  case "$host_os" in
+    mingw* | cygwin*) is_woe32=yes ;;
+    *) is_woe32=no ;;
+  esac
+  WOE32=$is_woe32
+  AC_SUBST([WOE32])
+  if test $WOE32 = yes; then
+    dnl Check for a program that compiles Windows resource files.
+    AC_CHECK_TOOL([WINDRES], [windres])
+  fi
+
+  dnl Determine whether when creating a library, "-lc" should be passed to
+  dnl libtool or not. On many platforms, it is required for the libtool option
+  dnl -no-undefined to work. On HP-UX, however, the -lc - stored by libtool
+  dnl in the *.la files - makes it impossible to create multithreaded programs,
+  dnl because libtool also reorders the -lc to come before the -pthread, and
+  dnl this disables pthread_create() <http://docs.hp.com/en/1896/pthreads.html>.
+  case "$host_os" in
+    hpux*) LTLIBC="" ;;
+    *)     LTLIBC="-lc" ;;
+  esac
+  AC_SUBST([LTLIBC])
+
   dnl Rename some macros and functions used for locking.
   AH_BOTTOM([
 #define __libc_lock_t                   gl_lock_t
@@ -197,7 +221,9 @@ AC_DEFUN([gt_INTL_SUBDIR_CORE],
   AC_CACHE_CHECK([for NL_LOCALE_NAME macro], gt_cv_nl_locale_name,
     [AC_TRY_LINK([#include <langinfo.h>
 #include <locale.h>],
-      [char* cs = nl_langinfo(_NL_LOCALE_NAME(LC_MESSAGES));],
+      [char* cs = nl_langinfo(_NL_LOCALE_NAME(LC_MESSAGES));
+       return !cs;
+      ],
       gt_cv_nl_locale_name=yes,
       gt_cv_nl_locale_name=no)
     ])
diff --git a/gl/m4/intlmacosx.m4 b/gl/m4/intlmacosx.m4
new file mode 100644
index 00000000..d3f0d904
--- /dev/null
+++ b/gl/m4/intlmacosx.m4
@@ -0,0 +1,51 @@
+# intlmacosx.m4 serial 1 (gettext-0.17)
+dnl Copyright (C) 2004-2007 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+dnl
+dnl This file can can be used in projects which are not available under
+dnl the GNU General Public License or the GNU Library General Public
+dnl License but which still want to provide support for the GNU gettext
+dnl functionality.
+dnl Please note that the actual code of the GNU gettext library is covered
+dnl by the GNU Library General Public License, and the rest of the GNU
+dnl gettext package package is covered by the GNU General Public License.
+dnl They are *not* in the public domain.
+
+dnl Checks for special options needed on MacOS X.
+dnl Defines INTL_MACOSX_LIBS.
+AC_DEFUN([gt_INTL_MACOSX],
+[
+  dnl Check for API introduced in MacOS X 10.2.
+  AC_CACHE_CHECK([for CFPreferencesCopyAppValue],
+    gt_cv_func_CFPreferencesCopyAppValue,
+    [gt_save_LIBS="$LIBS"
+     LIBS="$LIBS -Wl,-framework -Wl,CoreFoundation"
+     AC_TRY_LINK([#include <CoreFoundation/CFPreferences.h>],
+       [CFPreferencesCopyAppValue(NULL, NULL)],
+       [gt_cv_func_CFPreferencesCopyAppValue=yes],
+       [gt_cv_func_CFPreferencesCopyAppValue=no])
+     LIBS="$gt_save_LIBS"])
+  if test $gt_cv_func_CFPreferencesCopyAppValue = yes; then
+    AC_DEFINE([HAVE_CFPREFERENCESCOPYAPPVALUE], 1,
+      [Define to 1 if you have the MacOS X function CFPreferencesCopyAppValue in the CoreFoundation framework.])
+  fi
+  dnl Check for API introduced in MacOS X 10.3.
+  AC_CACHE_CHECK([for CFLocaleCopyCurrent], gt_cv_func_CFLocaleCopyCurrent,
+    [gt_save_LIBS="$LIBS"
+     LIBS="$LIBS -Wl,-framework -Wl,CoreFoundation"
+     AC_TRY_LINK([#include <CoreFoundation/CFLocale.h>], [CFLocaleCopyCurrent();],
+       [gt_cv_func_CFLocaleCopyCurrent=yes],
+       [gt_cv_func_CFLocaleCopyCurrent=no])
+     LIBS="$gt_save_LIBS"])
+  if test $gt_cv_func_CFLocaleCopyCurrent = yes; then
+    AC_DEFINE([HAVE_CFLOCALECOPYCURRENT], 1,
+      [Define to 1 if you have the MacOS X function CFLocaleCopyCurrent in the CoreFoundation framework.])
+  fi
+  INTL_MACOSX_LIBS=
+  if test $gt_cv_func_CFPreferencesCopyAppValue = yes || test $gt_cv_func_CFLocaleCopyCurrent = yes; then
+    INTL_MACOSX_LIBS="-Wl,-framework -Wl,CoreFoundation"
+  fi
+  AC_SUBST([INTL_MACOSX_LIBS])
+])
diff --git a/gl/m4/intmax_t.m4 b/gl/m4/intmax_t.m4
index 17c7b0ae..50ae35d2 100644
--- a/gl/m4/intmax_t.m4
+++ b/gl/m4/intmax_t.m4
@@ -1,5 +1,5 @@
-# intmax_t.m4 serial 5
-dnl Copyright (C) 1997-2004, 2006 Free Software Foundation, Inc.
+# intmax_t.m4 serial 6
+dnl Copyright (C) 1997-2004, 2006-2007 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -18,8 +18,8 @@ AC_DEFUN([gl_AC_TYPE_INTMAX_T],
   AC_REQUIRE([gl_AC_HEADER_INTTYPES_H])
   AC_REQUIRE([gl_AC_HEADER_STDINT_H])
   if test $gl_cv_header_inttypes_h = no && test $gl_cv_header_stdint_h = no; then
-    AC_REQUIRE([gl_AC_TYPE_LONG_LONG])
-    test $ac_cv_type_long_long = yes \
+    AC_REQUIRE([AC_TYPE_LONG_LONG_INT])
+    test $ac_cv_type_long_long_int = yes \
       && ac_type='long long' \
       || ac_type='long'
     AC_DEFINE_UNQUOTED(intmax_t, $ac_type,
@@ -51,8 +51,8 @@ AC_DEFUN([gt_AC_TYPE_INTMAX_T],
     AC_DEFINE(HAVE_INTMAX_T, 1,
       [Define if you have the 'intmax_t' type in <stdint.h> or <inttypes.h>.])
   else
-    AC_REQUIRE([gl_AC_TYPE_LONG_LONG])
-    test $ac_cv_type_long_long = yes \
+    AC_REQUIRE([AC_TYPE_LONG_LONG_INT])
+    test $ac_cv_type_long_long_int = yes \
       && ac_type='long long' \
       || ac_type='long'
     AC_DEFINE_UNQUOTED(intmax_t, $ac_type,
diff --git a/gl/m4/lib-link.m4 b/gl/m4/lib-link.m4
index f157d983..e3d26fc4 100644
--- a/gl/m4/lib-link.m4
+++ b/gl/m4/lib-link.m4
@@ -1,4 +1,4 @@
-# lib-link.m4 serial 13 (gettext-0.16.2)
+# lib-link.m4 serial 13 (gettext-0.17)
 dnl Copyright (C) 2001-2007 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
diff --git a/gl/m4/localcharset.m4 b/gl/m4/localcharset.m4
new file mode 100644
index 00000000..b2b77338
--- /dev/null
+++ b/gl/m4/localcharset.m4
@@ -0,0 +1,16 @@
+# localcharset.m4 serial 5
+dnl Copyright (C) 2002, 2004, 2006 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+AC_DEFUN([gl_LOCALCHARSET],
+[
+  dnl Prerequisites of lib/localcharset.c.
+  AC_REQUIRE([AM_LANGINFO_CODESET])
+  AC_CHECK_DECLS_ONCE(getc_unlocked)
+
+  dnl Prerequisites of the lib/Makefile.am snippet.
+  AC_REQUIRE([AC_CANONICAL_HOST])
+  AC_REQUIRE([gl_GLIBC21])
+])
diff --git a/gl/m4/lock.m4 b/gl/m4/lock.m4
index 0224f2ff..91119335 100644
--- a/gl/m4/lock.m4
+++ b/gl/m4/lock.m4
@@ -1,5 +1,5 @@
-# lock.m4 serial 6 (gettext-0.16)
-dnl Copyright (C) 2005-2006 Free Software Foundation, Inc.
+# lock.m4 serial 7 (gettext-0.17)
+dnl Copyright (C) 2005-2007 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -35,7 +35,12 @@ AC_DEFUN([gl_LOCK_EARLY_BODY],
   AC_BEFORE([$0], [gl_ARGP])dnl
 
   AC_REQUIRE([AC_CANONICAL_HOST])
-  AC_REQUIRE([AC_GNU_SOURCE]) dnl needed for pthread_rwlock_t on glibc systems
+  dnl _GNU_SOURCE is needed for pthread_rwlock_t on glibc systems.
+  dnl AC_USE_SYSTEM_EXTENSIONS was introduced in autoconf 2.60 and obsoletes
+  dnl AC_GNU_SOURCE.
+  m4_ifdef([AC_USE_SYSTEM_EXTENSIONS],
+    [AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])],
+    [AC_REQUIRE([AC_GNU_SOURCE])])
   dnl Check for multithreading.
   AC_ARG_ENABLE(threads,
 AC_HELP_STRING([--enable-threads={posix|solaris|pth|win32}], [specify multithreading API])
diff --git a/gl/m4/longdouble.m4 b/gl/m4/longdouble.m4
deleted file mode 100644
index 25590f47..00000000
--- a/gl/m4/longdouble.m4
+++ /dev/null
@@ -1,31 +0,0 @@
-# longdouble.m4 serial 2 (gettext-0.15)
-dnl Copyright (C) 2002-2003, 2006 Free Software Foundation, Inc.
-dnl This file is free software; the Free Software Foundation
-dnl gives unlimited permission to copy and/or distribute it,
-dnl with or without modifications, as long as this notice is preserved.
-
-dnl From Bruno Haible.
-dnl Test whether the compiler supports the 'long double' type.
-dnl Prerequisite: AC_PROG_CC
-
-dnl This file is only needed in autoconf <= 2.59.  Newer versions of autoconf
-dnl have a macro AC_TYPE_LONG_DOUBLE with identical semantics.
-
-AC_DEFUN([gt_TYPE_LONGDOUBLE],
-[
-  AC_CACHE_CHECK([for long double], gt_cv_c_long_double,
-    [if test "$GCC" = yes; then
-       gt_cv_c_long_double=yes
-     else
-       AC_TRY_COMPILE([
-         /* The Stardent Vistra knows sizeof(long double), but does not support it.  */
-         long double foo = 0.0;
-         /* On Ultrix 4.3 cc, long double is 4 and double is 8.  */
-         int array [2*(sizeof(long double) >= sizeof(double)) - 1];
-         ], ,
-         gt_cv_c_long_double=yes, gt_cv_c_long_double=no)
-     fi])
-  if test $gt_cv_c_long_double = yes; then
-    AC_DEFINE(HAVE_LONG_DOUBLE, 1, [Define if you have the 'long double' type.])
-  fi
-])
diff --git a/gl/m4/longlong.m4 b/gl/m4/longlong.m4
index 1f9e862e..15bf9dac 100644
--- a/gl/m4/longlong.m4
+++ b/gl/m4/longlong.m4
@@ -1,5 +1,5 @@
-# longlong.m4 serial 10
-dnl Copyright (C) 1999-2006 Free Software Foundation, Inc.
+# longlong.m4 serial 13
+dnl Copyright (C) 1999-2007 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -7,8 +7,8 @@ dnl with or without modifications, as long as this notice is preserved.
 dnl From Paul Eggert.
 
 # Define HAVE_LONG_LONG_INT if 'long long int' works.
-# This fixes a bug in Autoconf 2.60, but can be removed once we
-# assume 2.61 everywhere.
+# This fixes a bug in Autoconf 2.61, but can be removed once we
+# assume 2.62 everywhere.
 
 # Note: If the type 'long long int' exists but is only 32 bits large
 # (as on some very old compilers), HAVE_LONG_LONG_INT will not be
@@ -18,20 +18,11 @@ AC_DEFUN([AC_TYPE_LONG_LONG_INT],
 [
   AC_CACHE_CHECK([for long long int], [ac_cv_type_long_long_int],
     [AC_LINK_IFELSE(
-       [AC_LANG_PROGRAM(
-          [[long long int ll = 9223372036854775807ll;
-            long long int nll = -9223372036854775807LL;
-            typedef int a[((-9223372036854775807LL < 0
-                            && 0 < 9223372036854775807ll)
-                           ? 1 : -1)];
-            int i = 63;]],
-          [[long long int llmax = 9223372036854775807ll;
-            return ((ll << 63) | (ll >> 63) | (ll < i) | (ll > i)
-                    | (llmax / ll) | (llmax % ll));]])],
+       [_AC_TYPE_LONG_LONG_SNIPPET],
        [dnl This catches a bug in Tandem NonStop Kernel (OSS) cc -O circa 2004.
         dnl If cross compiling, assume the bug isn't important, since
         dnl nobody cross compiles for this platform as far as we know.
-        AC_RUN_IFELSE(
+        AC_RUN_IFELSE(
           [AC_LANG_PROGRAM(
              [[@%:@include <limits.h>
                @%:@ifndef LLONG_MAX
@@ -60,13 +51,56 @@ AC_DEFUN([AC_TYPE_LONG_LONG_INT],
   fi
 ])
 
-# This macro is obsolescent and should go away soon.
-AC_DEFUN([gl_AC_TYPE_LONG_LONG],
+# Define HAVE_UNSIGNED_LONG_LONG_INT if 'unsigned long long int' works.
+# This fixes a bug in Autoconf 2.61, but can be removed once we
+# assume 2.62 everywhere.
+
+# Note: If the type 'unsigned long long int' exists but is only 32 bits
+# large (as on some very old compilers), AC_TYPE_UNSIGNED_LONG_LONG_INT
+# will not be defined. In this case you can treat 'unsigned long long int'
+# like 'unsigned long int'.
+
+AC_DEFUN([AC_TYPE_UNSIGNED_LONG_LONG_INT],
 [
-  AC_REQUIRE([AC_TYPE_LONG_LONG_INT])
-  ac_cv_type_long_long=$ac_cv_type_long_long_int
-  if test $ac_cv_type_long_long = yes; then
-    AC_DEFINE(HAVE_LONG_LONG, 1,
-      [Define if you have the 'long long' type.])
+  AC_CACHE_CHECK([for unsigned long long int],
+    [ac_cv_type_unsigned_long_long_int],
+    [AC_LINK_IFELSE(
+       [_AC_TYPE_LONG_LONG_SNIPPET],
+       [ac_cv_type_unsigned_long_long_int=yes],
+       [ac_cv_type_unsigned_long_long_int=no])])
+  if test $ac_cv_type_unsigned_long_long_int = yes; then
+    AC_DEFINE([HAVE_UNSIGNED_LONG_LONG_INT], 1,
+      [Define to 1 if the system has the type `unsigned long long int'.])
   fi
 ])
+
+# Expands to a C program that can be used to test for simultaneous support
+# of 'long long' and 'unsigned long long'. We don't want to say that
+# 'long long' is available if 'unsigned long long' is not, or vice versa,
+# because too many programs rely on the symmetry between signed and unsigned
+# integer types (excluding 'bool').
+AC_DEFUN([_AC_TYPE_LONG_LONG_SNIPPET],
+[
+  AC_LANG_PROGRAM(
+    [[/* For now, do not test the preprocessor; as of 2007 there are too many
+         implementations with broken preprocessors.  Perhaps this can
+         be revisited in 2012.  In the meantime, code should not expect
+         #if to work with literals wider than 32 bits.  */
+      /* Test literals.  */
+      long long int ll = 9223372036854775807ll;
+      long long int nll = -9223372036854775807LL;
+      unsigned long long int ull = 18446744073709551615ULL;
+      /* Test constant expressions.   */
+      typedef int a[((-9223372036854775807LL < 0 && 0 < 9223372036854775807ll)
+                     ? 1 : -1)];
+      typedef int b[(18446744073709551615ULL <= (unsigned long long int) -1
+                     ? 1 : -1)];
+      int i = 63;]],
+    [[/* Test availability of runtime routines for shift and division.  */
+      long long int llmax = 9223372036854775807ll;
+      unsigned long long int ullmax = 18446744073709551615ull;
+      return ((ll << 63) | (ll >> 63) | (ll < i) | (ll > i)
+              | (llmax / ll) | (llmax % ll)
+              | (ull << 63) | (ull >> 63) | (ull << i) | (ull >> i)
+              | (ullmax / ull) | (ullmax % ull));]])
+])
diff --git a/gl/m4/malloc.m4 b/gl/m4/malloc.m4
new file mode 100644
index 00000000..764f2a9f
--- /dev/null
+++ b/gl/m4/malloc.m4
@@ -0,0 +1,41 @@
+# malloc.m4 serial 8
+dnl Copyright (C) 2007 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+# gl_FUNC_MALLOC_POSIX
+# --------------------
+# Test whether 'malloc' is POSIX compliant (sets errno to ENOMEM when it
+# fails), and replace malloc if it is not.
+AC_DEFUN([gl_FUNC_MALLOC_POSIX],
+[
+  AC_REQUIRE([gl_CHECK_MALLOC_POSIX])
+  if test $gl_cv_func_malloc_posix = yes; then
+    HAVE_MALLOC_POSIX=1
+    AC_DEFINE([HAVE_MALLOC_POSIX], 1,
+      [Define if the 'malloc' function is POSIX compliant.])
+  else
+    AC_LIBOBJ([malloc])
+    HAVE_MALLOC_POSIX=0
+  fi
+  AC_SUBST([HAVE_MALLOC_POSIX])
+])
+
+# Test whether malloc, realloc, calloc are POSIX compliant,
+# Set gl_cv_func_malloc_posix to yes or no accordingly.
+AC_DEFUN([gl_CHECK_MALLOC_POSIX],
+[
+  AC_CACHE_CHECK([whether malloc, realloc, calloc are POSIX compliant],
+    [gl_cv_func_malloc_posix],
+    [
+      dnl It is too dangerous to try to allocate a large amount of memory:
+      dnl some systems go to their knees when you do that. So assume that
+      dnl all Unix implementations of the function are POSIX compliant.
+      AC_TRY_COMPILE([],
+        [#if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
+         choke me
+         #endif
+        ], [gl_cv_func_malloc_posix=yes], [gl_cv_func_malloc_posix=no])
+    ])
+])
diff --git a/gl/m4/mbchar.m4 b/gl/m4/mbchar.m4
deleted file mode 100644
index 5380941b..00000000
--- a/gl/m4/mbchar.m4
+++ /dev/null
@@ -1,14 +0,0 @@
-# mbchar.m4 serial 5
-dnl Copyright (C) 2005-2007 Free Software Foundation, Inc.
-dnl This file is free software; the Free Software Foundation
-dnl gives unlimited permission to copy and/or distribute it,
-dnl with or without modifications, as long as this notice is preserved.
-
-dnl autoconf tests required for use of mbchar.m4
-dnl From Bruno Haible.
-
-AC_DEFUN([gl_MBCHAR],
-[
-  AC_REQUIRE([AC_GNU_SOURCE])
-  AC_LIBOBJ([mbchar])
-])
diff --git a/gl/m4/mbiter.m4 b/gl/m4/mbiter.m4
deleted file mode 100644
index 7d51af10..00000000
--- a/gl/m4/mbiter.m4
+++ /dev/null
@@ -1,17 +0,0 @@
-# mbiter.m4 serial 2
-dnl Copyright (C) 2005 Free Software Foundation, Inc.
-dnl This file is free software; the Free Software Foundation
-dnl gives unlimited permission to copy and/or distribute it,
-dnl with or without modifications, as long as this notice is preserved.
-
-dnl autoconf tests required for use of mbiter.h
-dnl From Bruno Haible.
-
-AC_DEFUN([gl_MBITER],
-[
-  AC_REQUIRE([AC_TYPE_MBSTATE_T])
-  dnl The following line is that so the user can test HAVE_MBRTOWC before
-  dnl #include "mbiter.h" or "mbuiter.h".
-  AC_REQUIRE([gl_FUNC_MBRTOWC])
-  :
-])
diff --git a/gl/m4/mbrtowc.m4 b/gl/m4/mbrtowc.m4
deleted file mode 100644
index a3bd9114..00000000
--- a/gl/m4/mbrtowc.m4
+++ /dev/null
@@ -1,31 +0,0 @@
-# mbrtowc.m4 serial 8
-dnl Copyright (C) 2001-2002, 2004-2005 Free Software Foundation, Inc.
-dnl This file is free software; the Free Software Foundation
-dnl gives unlimited permission to copy and/or distribute it,
-dnl with or without modifications, as long as this notice is preserved.
-
-dnl From Paul Eggert
-
-dnl This file can be removed, and gl_FUNC_MBRTOWC replaced with
-dnl AC_FUNC_MBRTOWC, when autoconf 2.60 can be assumed everywhere.
-
-AC_DEFUN([gl_FUNC_MBRTOWC],
-[
-  dnl Same as AC_FUNC_MBRTOWC in autoconf-2.60.
-  AC_CACHE_CHECK([whether mbrtowc and mbstate_t are properly declared],
-    gl_cv_func_mbrtowc,
-    [AC_LINK_IFELSE(
-       [AC_LANG_PROGRAM(
-            [[#include <wchar.h>]],
-            [[wchar_t wc;
-              char const s[] = "";
-              size_t n = 1;
-              mbstate_t state;
-              return ! (sizeof state && (mbrtowc) (&wc, s, n, &state));]])],
-       gl_cv_func_mbrtowc=yes,
-       gl_cv_func_mbrtowc=no)])
-  if test $gl_cv_func_mbrtowc = yes; then
-    AC_DEFINE([HAVE_MBRTOWC], 1,
-      [Define to 1 if mbrtowc and mbstate_t are properly declared.])
-  fi
-])
diff --git a/gl/m4/memchr.m4 b/gl/m4/memchr.m4
deleted file mode 100644
index 91b8636e..00000000
--- a/gl/m4/memchr.m4
+++ /dev/null
@@ -1,18 +0,0 @@
-# memchr.m4 serial 4
-dnl Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc.
-dnl This file is free software; the Free Software Foundation
-dnl gives unlimited permission to copy and/or distribute it,
-dnl with or without modifications, as long as this notice is preserved.
-
-AC_DEFUN([gl_FUNC_MEMCHR],
-[
-  AC_REPLACE_FUNCS(memchr)
-  if test $ac_cv_func_memchr = no; then
-    gl_PREREQ_MEMCHR
-  fi
-])
-
-# Prerequisites of lib/memchr.c.
-AC_DEFUN([gl_PREREQ_MEMCHR], [
-  AC_CHECK_HEADERS(bp-sym.h)
-])
diff --git a/gl/m4/minmax.m4 b/gl/m4/minmax.m4
deleted file mode 100644
index bbd1ba0b..00000000
--- a/gl/m4/minmax.m4
+++ /dev/null
@@ -1,41 +0,0 @@
-# minmax.m4 serial 2
-dnl Copyright (C) 2005 Free Software Foundation, Inc.
-dnl This file is free software; the Free Software Foundation
-dnl gives unlimited permission to copy and/or distribute it,
-dnl with or without modifications, as long as this notice is preserved.
-
-AC_PREREQ(2.52)
-
-AC_DEFUN([gl_MINMAX],
-[
-  AC_REQUIRE([gl_PREREQ_MINMAX])
-])
-
-# Prerequisites of lib/minmax.h.
-AC_DEFUN([gl_PREREQ_MINMAX],
-[
-  gl_MINMAX_IN_HEADER([limits.h])
-  gl_MINMAX_IN_HEADER([sys/param.h])
-])
-
-dnl gl_MINMAX_IN_HEADER(HEADER)
-dnl The parameter has to be a literal header name; it cannot be macro,
-dnl nor a shell variable. (Because autoheader collects only AC_DEFINE
-dnl invocations with a literal macro name.)
-AC_DEFUN([gl_MINMAX_IN_HEADER],
-[
-  m4_pushdef([header], AS_TR_SH([$1]))
-  m4_pushdef([HEADER], AS_TR_CPP([$1]))
-  AC_CACHE_CHECK([whether <$1> defines MIN and MAX],
-    [gl_cv_minmax_in_]header,
-    [AC_TRY_COMPILE([#include <$1>
-int x = MIN (42, 17);], [],
-       [gl_cv_minmax_in_]header[=yes],
-       [gl_cv_minmax_in_]header[=no])])
-  if test $gl_cv_minmax_in_[]header = yes; then
-    AC_DEFINE([HAVE_MINMAX_IN_]HEADER, 1,
-      [Define to 1 if <$1> defines the MIN and MAX macros.])
-  fi
-  m4_popdef([HEADER])
-  m4_popdef([header])
-])
diff --git a/gl/m4/netinet_in_h.m4 b/gl/m4/netinet_in_h.m4
index d73531a0..096be740 100644
--- a/gl/m4/netinet_in_h.m4
+++ b/gl/m4/netinet_in_h.m4
@@ -1,18 +1,30 @@
-# netinet_in_h.m4 serial 1
-dnl Copyright (C) 2006 Free Software Foundation, Inc.
+# netinet_in_h.m4 serial 3
+dnl Copyright (C) 2006-2007 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 
-dnl Written by Simon Josefsson
-
 AC_DEFUN([gl_HEADER_NETINET_IN],
 [
-  AC_CHECK_HEADERS_ONCE([netinet/in.h])
-  if test $ac_cv_header_netinet_in_h = yes; then
+  AC_CACHE_CHECK([whether <netinet/in.h> is self-contained],
+    [gl_cv_header_netinet_in_h_selfcontained],
+    [
+      AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <netinet/in.h>], [])],
+        [gl_cv_header_netinet_in_h_selfcontained=yes],
+        [gl_cv_header_netinet_in_h_selfcontained=no])
+    ])
+  if test $gl_cv_header_netinet_in_h_selfcontained = yes; then
     NETINET_IN_H=''
   else
     NETINET_IN_H='netinet/in.h'
+    AC_CHECK_HEADERS([netinet/in.h])
+    gl_CHECK_NEXT_HEADERS([netinet/in.h])
+    if test $ac_cv_header_netinet_in_h = yes; then
+      HAVE_NETINET_IN_H=1
+    else
+      HAVE_NETINET_IN_H=0
+    fi
+    AC_SUBST([HAVE_NETINET_IN_H])
   fi
-  AC_SUBST(NETINET_IN_H)
+  AC_SUBST([NETINET_IN_H])
 ])
diff --git a/gl/m4/po.m4 b/gl/m4/po.m4
index 00133ef3..0734762a 100644
--- a/gl/m4/po.m4
+++ b/gl/m4/po.m4
@@ -1,5 +1,5 @@
-# po.m4 serial 13 (gettext-0.15)
-dnl Copyright (C) 1995-2006 Free Software Foundation, Inc.
+# po.m4 serial 15 (gettext-0.17)
+dnl Copyright (C) 1995-2007 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -27,6 +27,10 @@ AC_DEFUN([AM_PO_SUBDIRS],
   AC_REQUIRE([AM_PROG_MKDIR_P])dnl defined by automake
   AC_REQUIRE([AM_NLS])dnl
 
+  dnl Release version of the gettext macros. This is used to ensure that
+  dnl the gettext macros and po/Makefile.in.in are in sync.
+  AC_SUBST([GETTEXT_MACRO_VERSION], [0.17])
+
   dnl Perform the following tests also if --disable-nls has been given,
   dnl because they are needed for "make dist" to work.
 
@@ -84,6 +88,10 @@ changequote([,])dnl
   test -n "$localedir" || localedir='${datadir}/locale'
   AC_SUBST([localedir])
 
+  dnl Support for AM_XGETTEXT_OPTION.
+  test -n "${XGETTEXT_EXTRA_OPTIONS+set}" || XGETTEXT_EXTRA_OPTIONS=
+  AC_SUBST([XGETTEXT_EXTRA_OPTIONS])
+
   AC_CONFIG_COMMANDS([po-directories], [[
     for ac_file in $CONFIG_FILES; do
       # Support "outfile[:infile[:infile...]]"
@@ -426,3 +434,16 @@ EOF
   fi
   mv "$ac_file.tmp" "$ac_file"
 ])
+
+dnl Initializes the accumulator used by AM_XGETTEXT_OPTION.
+AC_DEFUN([AM_XGETTEXT_OPTION_INIT],
+[
+  XGETTEXT_EXTRA_OPTIONS=
+])
+
+dnl Registers an option to be passed to xgettext in the po subdirectory.
+AC_DEFUN([AM_XGETTEXT_OPTION],
+[
+  AC_REQUIRE([AM_XGETTEXT_OPTION_INIT])
+  XGETTEXT_EXTRA_OPTIONS="$XGETTEXT_EXTRA_OPTIONS $1"
+])
diff --git a/gl/m4/printf-posix.m4 b/gl/m4/printf-posix.m4
index af10170a..14ba6128 100644
--- a/gl/m4/printf-posix.m4
+++ b/gl/m4/printf-posix.m4
@@ -1,5 +1,5 @@
-# printf-posix.m4 serial 2 (gettext-0.13.1)
-dnl Copyright (C) 2003 Free Software Foundation, Inc.
+# printf-posix.m4 serial 3 (gettext-0.17)
+dnl Copyright (C) 2003, 2007 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -28,7 +28,7 @@ int main ()
 }], gt_cv_func_printf_posix=yes, gt_cv_func_printf_posix=no,
       [
         AC_EGREP_CPP(notposix, [
-#if defined __NetBSD__ || defined _MSC_VER || defined __MINGW32__ || defined __CYGWIN__
+#if defined __NetBSD__ || defined __BEOS__ || defined _MSC_VER || defined __MINGW32__ || defined __CYGWIN__
   notposix
 #endif
         ], gt_cv_func_printf_posix="guessing no",
diff --git a/gl/m4/regex.m4 b/gl/m4/regex.m4
index 25da645e..7da6efed 100644
--- a/gl/m4/regex.m4
+++ b/gl/m4/regex.m4
@@ -1,4 +1,4 @@
-#serial 42
+#serial 48
 
 # Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2003, 2004, 2005,
 # 2006, 2007 Free Software Foundation, Inc.
@@ -18,9 +18,12 @@ AC_DEFUN([gl_REGEX],
 
   AC_ARG_WITH([included-regex],
     [AC_HELP_STRING([--without-included-regex],
-                    [don't compile regex; this is the default on
+                    [don't compile regex; this is the default on 32-bit
                      systems with recent-enough versions of the GNU C
-                     Library (use with caution on other systems)])])
+                     Library (use with caution on other systems).
+                     On systems with 64-bit ptrdiff_t and 32-bit int,
+                     --with-included-regex is the default, in case
+                     regex functions operate on very long strings (>2GB)])])
 
   case $with_included_regex in #(
   yes|no) ac_use_included_regex=$with_included_regex
@@ -29,8 +32,7 @@ AC_DEFUN([gl_REGEX],
     # If the system regex support is good enough that it passes the
     # following run test, then default to *not* using the included regex.c.
     # If cross compiling, assume the test would fail and use the included
-    # regex.c.  The first failing regular expression is from `Spencer ere
-    # test #75' in grep-2.3.
+    # regex.c.
     AC_CACHE_CHECK([for working re_compile_pattern],
                    [gl_cv_func_re_compile_pattern_working],
       [AC_RUN_IFELSE(
@@ -74,68 +76,91 @@ AC_DEFUN([gl_REGEX],
                 }
             #endif
 
+            /* This test is from glibc bug 3957, reported by Andrew Mackey.  */
+            re_set_syntax (RE_SYNTAX_EGREP | RE_HAT_LISTS_NOT_NEWLINE);
+            memset (&regex, 0, sizeof regex);
+            s = re_compile_pattern ("a[^x]b", 6, &regex);
+            if (s)
+              return 1;
+
+            /* This should fail, but succeeds for glibc-2.5.  */
+            if (re_search (&regex, "a\nb", 3, 0, 3, &regs) != -1)
+              return 1;
+
+            /* This regular expression is from Spencer ere test number 75
+               in grep-2.3.  */
             re_set_syntax (RE_SYNTAX_POSIX_EGREP);
-            memset (&regex, 0, sizeof (regex));
+            memset (&regex, 0, sizeof regex);
             for (i = 0; i <= UCHAR_MAX; i++)
               folded_chars[i] = i;
             regex.translate = folded_chars;
             s = re_compile_pattern ("a[[:@:>@:]]b\n", 11, &regex);
             /* This should fail with _Invalid character class name_ error.  */
             if (!s)
-              exit (1);
+              return 1;
 
-            /* This should succeed, but does not for e.g. glibc-2.1.3.  */
-            memset (&regex, 0, sizeof (regex));
+            /* This should succeed, but does not for glibc-2.1.3.  */
+            memset (&regex, 0, sizeof regex);
             s = re_compile_pattern ("{1", 2, &regex);
 
             if (s)
-              exit (1);
+              return 1;
 
             /* The following example is derived from a problem report
                against gawk from Jorge Stolfi <stolfi@ic.unicamp.br>.  */
-            memset (&regex, 0, sizeof (regex));
+            memset (&regex, 0, sizeof regex);
             s = re_compile_pattern ("[an\371]*n", 7, &regex);
             if (s)
-              exit (1);
+              return 1;
 
-            /* This should match, but does not for e.g. glibc-2.2.1.  */
+            /* This should match, but does not for glibc-2.2.1.  */
             if (re_match (&regex, "an", 2, 0, &regs) != 2)
-              exit (1);
+              return 1;
 
-            memset (&regex, 0, sizeof (regex));
+            memset (&regex, 0, sizeof regex);
             s = re_compile_pattern ("x", 1, &regex);
             if (s)
-              exit (1);
+              return 1;
 
-            /* The version of regex.c in e.g. GNU libc-2.2.93 did not
-               work with a negative RANGE argument.  */
+            /* glibc-2.2.93 does not work with a negative RANGE argument.  */
             if (re_search (&regex, "wxy", 3, 2, -2, &regs) != 1)
-              exit (1);
+              return 1;
 
             /* The version of regex.c in older versions of gnulib
                ignored RE_ICASE.  Detect that problem too.  */
-            memset (&regex, 0, sizeof (regex));
             re_set_syntax (RE_SYNTAX_EMACS | RE_ICASE);
+            memset (&regex, 0, sizeof regex);
             s = re_compile_pattern ("x", 1, &regex);
             if (s)
-              exit (1);
+              return 1;
 
             if (re_search (&regex, "WXY", 3, 0, 3, &regs) < 0)
-              exit (1);
+              return 1;
+
+            /* Catch a bug reported by Vin Shelton in
+               http://lists.gnu.org/archive/html/bug-coreutils/2007-06/msg00089.html
+               */
+            re_set_syntax (RE_SYNTAX_POSIX_BASIC
+                           & ~RE_CONTEXT_INVALID_DUP
+                           & ~RE_NO_EMPTY_RANGES);
+            memset (&regex, 0, sizeof regex);
+            s = re_compile_pattern ("[[:alnum:]_-]\\\\+$", 16, &regex);
+            if (s)
+              return 1;
 
             /* REG_STARTEND was added to glibc on 2004-01-15.
                Reject older versions.  */
             if (! REG_STARTEND)
-              exit (1);
+              return 1;
 
             /* Reject hosts whose regoff_t values are too narrow.
                These include glibc 2.3.5 on hosts with 64-bit ptrdiff_t
                and 32-bit int.  */
             if (sizeof (regoff_t) < sizeof (ptrdiff_t)
                 || sizeof (regoff_t) < sizeof (ssize_t))
-              exit (1);
+              return 1;
 
-            exit (0);]])],
+            return 0;]])],
        [gl_cv_func_re_compile_pattern_working=yes],
        [gl_cv_func_re_compile_pattern_working=no],
        dnl When crosscompiling, assume it is not working.
@@ -190,9 +215,8 @@ AC_DEFUN([gl_REGEX],
 # Prerequisites of lib/regex.c and lib/regex_internal.c.
 AC_DEFUN([gl_PREREQ_REGEX],
 [
-  AC_REQUIRE([AC_GNU_SOURCE])
+  AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
   AC_REQUIRE([AC_C_RESTRICT])
-  AC_REQUIRE([AM_LANGINFO_CODESET])
-  AC_CHECK_FUNCS_ONCE([iswctype mbrtowc mempcpy wcrtomb wcscoll])
+  AC_CHECK_FUNCS_ONCE([isblank iswctype mbrtowc wcrtomb wcscoll])
   AC_CHECK_DECLS([isblank], [], [], [#include <ctype.h>])
 ])
diff --git a/gl/m4/snprintf.m4 b/gl/m4/snprintf.m4
index 432e0375..f21200dc 100644
--- a/gl/m4/snprintf.m4
+++ b/gl/m4/snprintf.m4
@@ -1,13 +1,29 @@
-# snprintf.m4 serial 2
-dnl Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc.
+# snprintf.m4 serial 4
+dnl Copyright (C) 2002, 2003, 2004, 2007 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 
 AC_DEFUN([gl_FUNC_SNPRINTF],
 [
-  AC_REPLACE_FUNCS(snprintf)
-  AC_CHECK_DECLS_ONCE(snprintf)
+  AC_REQUIRE([gl_STDIO_H_DEFAULTS])
+  AC_CHECK_FUNCS([snprintf])
+  if test $ac_cv_func_snprintf = no; then
+    gl_REPLACE_SNPRINTF
+  fi
+  AC_CHECK_DECLS_ONCE([snprintf])
+  if test $ac_cv_have_decl_snprintf = no; then
+    HAVE_DECL_SNPRINTF=0
+  fi
+])
+
+AC_DEFUN([gl_REPLACE_SNPRINTF],
+[
+  AC_REQUIRE([gl_STDIO_H_DEFAULTS])
+  AC_LIBOBJ([snprintf])
+  if test $ac_cv_func_snprintf = yes; then
+    REPLACE_SNPRINTF=1
+  fi
   gl_PREREQ_SNPRINTF
 ])
 
diff --git a/gl/m4/socklen.m4 b/gl/m4/socklen.m4
index 5e3765a6..b755757b 100644
--- a/gl/m4/socklen.m4
+++ b/gl/m4/socklen.m4
@@ -1,5 +1,5 @@
-# socklen.m4 serial 4
-dnl Copyright (C) 2005, 2006 Free Software Foundation, Inc.
+# socklen.m4 serial 6
+dnl Copyright (C) 2005, 2006, 2007 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -12,14 +12,14 @@ dnl types for the argument to getsockopt, getpeername, etc.  So we
 dnl have to test to find something that will work.
 
 dnl On mingw32, socklen_t is in ws2tcpip.h ('int'), so we try to find
-dnl it there first.  That file is included by gnulib's socket_.h, which
+dnl it there first.  That file is included by gnulib's sys_socket.in.h, which
 dnl all users of this module should include.  Cygwin must not include
 dnl ws2tcpip.h.
 AC_DEFUN([gl_TYPE_SOCKLEN_T],
   [AC_REQUIRE([gl_HEADER_SYS_SOCKET])dnl
    AC_CHECK_TYPE([socklen_t], ,
      [AC_MSG_CHECKING([for socklen_t equivalent])
-      AC_CACHE_VAL([gl_cv_gl_cv_socklen_t_equiv],
+      AC_CACHE_VAL([gl_cv_socklen_t_equiv],
         [# Systems have either "struct sockaddr *" or
          # "void *" as the second argument to getpeername
          gl_cv_socklen_t_equiv=
diff --git a/gl/m4/stdint.m4 b/gl/m4/stdint.m4
index 1a4b4a6a..bb6c34fe 100644
--- a/gl/m4/stdint.m4
+++ b/gl/m4/stdint.m4
@@ -1,5 +1,5 @@
-# stdint.m4 serial 22
-dnl Copyright (C) 2001-2002, 2004-2007 Free Software Foundation, Inc.
+# stdint.m4 serial 29
+dnl Copyright (C) 2001-2007 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -45,32 +45,32 @@ AC_DEFUN([gl_STDINT_H],
   fi
   AC_SUBST([HAVE_SYS_TYPES_H])
 
-  dnl AC_INCLUDES_DEFAULT defines $ac_cv_header_stdint_h.
+  gl_CHECK_NEXT_HEADERS([stdint.h])
   if test $ac_cv_header_stdint_h = yes; then
-    gl_ABSOLUTE_HEADER([stdint.h])
-    ABSOLUTE_STDINT_H=\"$gl_cv_absolute_stdint_h\"
     HAVE_STDINT_H=1
   else
-    ABSOLUTE_STDINT_H=\"no/such/file/stdint.h\"
     HAVE_STDINT_H=0
   fi
-  AC_SUBST([ABSOLUTE_STDINT_H])
   AC_SUBST([HAVE_STDINT_H])
 
-  dnl Now see whether we need a substitute <stdint.h>.  Use
-  dnl ABSOLUTE_STDINT_H, not <stdint.h>, so that it also works during
-  dnl a "config.status --recheck" if a stdint.h has been
-  dnl created in the build directory.
+  dnl Now see whether we need a substitute <stdint.h>.
   if test $ac_cv_header_stdint_h = yes; then
     AC_CACHE_CHECK([whether stdint.h conforms to C99],
       [gl_cv_header_working_stdint_h],
       [gl_cv_header_working_stdint_h=no
        AC_COMPILE_IFELSE([
          AC_LANG_PROGRAM([[
-#include <stddef.h>
 #define __STDC_LIMIT_MACROS 1 /* to make it work also in C++ mode */
 #define __STDC_CONSTANT_MACROS 1 /* to make it work also in C++ mode */
-#include ABSOLUTE_STDINT_H
+#define _GL_JUST_INCLUDE_SYSTEM_STDINT_H 1 /* work if build isn't clean */
+#include <stdint.h>
+/* Dragonfly defines WCHAR_MIN, WCHAR_MAX only in <wchar.h>.  */
+#if !(defined WCHAR_MIN && defined WCHAR_MAX)
+#error "WCHAR_MIN, WCHAR_MAX not defined in <stdint.h>"
+#endif
+]
+gl_STDINT_INCLUDES
+[
 #ifdef INT8_MAX
 int8_t a1 = INT8_MAX;
 int8_t a1min = INT8_MIN;
@@ -142,12 +142,32 @@ uintptr_t h = UINTPTR_MAX;
 #endif
 intmax_t i = INTMAX_MAX;
 uintmax_t j = UINTMAX_MAX;
+
+#include <limits.h> /* for CHAR_BIT */
+#define TYPE_MINIMUM(t) \
+  ((t) ((t) 0 < (t) -1 ? (t) 0 : ~ (t) 0 << (sizeof (t) * CHAR_BIT - 1)))
+#define TYPE_MAXIMUM(t) \
+  ((t) ((t) 0 < (t) -1 ? (t) -1 : ~ (~ (t) 0 << (sizeof (t) * CHAR_BIT - 1))))
 struct s {
-  int check_PTRDIFF: PTRDIFF_MIN < 0 && 0 < PTRDIFF_MAX ? 1 : -1;
-  int check_SIG_ATOMIC: SIG_ATOMIC_MIN <= 0 && 0 < SIG_ATOMIC_MAX ? 1 : -1;
-  int check_SIZE: 0 < SIZE_MAX ? 1 : -1;
-  int check_WCHAR: WCHAR_MIN <= 0 && 0 < WCHAR_MAX ? 1 : -1;
-  int check_WINT: WINT_MIN <= 0 && 0 < WINT_MAX ? 1 : -1;
+  int check_PTRDIFF:
+      PTRDIFF_MIN == TYPE_MINIMUM (ptrdiff_t)
+      && PTRDIFF_MAX == TYPE_MAXIMUM (ptrdiff_t)
+      ? 1 : -1;
+  /* Detect bug in FreeBSD 6.0 / ia64.  */
+  int check_SIG_ATOMIC:
+      SIG_ATOMIC_MIN == TYPE_MINIMUM (sig_atomic_t)
+      && SIG_ATOMIC_MAX == TYPE_MAXIMUM (sig_atomic_t)
+      ? 1 : -1;
+  int check_SIZE: SIZE_MAX == TYPE_MAXIMUM (size_t) ? 1 : -1;
+  int check_WCHAR:
+      WCHAR_MIN == TYPE_MINIMUM (wchar_t)
+      && WCHAR_MAX == TYPE_MAXIMUM (wchar_t)
+      ? 1 : -1;
+  /* Detect bug in mingw.  */
+  int check_WINT:
+      WINT_MIN == TYPE_MINIMUM (wint_t)
+      && WINT_MAX == TYPE_MAXIMUM (wint_t)
+      ? 1 : -1;
 
   /* Detect bugs in glibc 2.4 and Solaris 10 stdint.h, among others.  */
   int check_UINT8_C:
@@ -202,6 +222,10 @@ struct s {
     fi
     AC_SUBST([HAVE_SYS_BITYPES_H])
 
+    dnl Check for <wchar.h> (missing in Linux uClibc when built without wide
+    dnl character support).
+    AC_CHECK_HEADERS_ONCE([wchar.h])
+
     gl_STDINT_TYPE_PROPERTIES
     STDINT_H=stdint.h
   fi
@@ -337,14 +361,16 @@ AC_DEFUN([gl_STDINT_INCLUDES],
      included before <wchar.h>.  */
   #include <stddef.h>
   #include <signal.h>
-  #include <stdio.h>
-  #include <time.h>
-  #include <wchar.h>
+  #if HAVE_WCHAR_H
+  # include <stdio.h>
+  # include <time.h>
+  # include <wchar.h>
+  #endif
 ]])
 
 dnl gl_STDINT_TYPE_PROPERTIES
 dnl Compute HAVE_SIGNED_t, BITSIZEOF_t and t_SUFFIX, for all the types t
-dnl of interest to stdint_.h.
+dnl of interest to stdint.in.h.
 AC_DEFUN([gl_STDINT_TYPE_PROPERTIES],
 [
   gl_STDINT_BITSIZEOF([ptrdiff_t sig_atomic_t size_t wchar_t wint_t],
diff --git a/gl/m4/stdio_h.m4 b/gl/m4/stdio_h.m4
new file mode 100644
index 00000000..a40d4180
--- /dev/null
+++ b/gl/m4/stdio_h.m4
@@ -0,0 +1,85 @@
+# stdio_h.m4 serial 9
+dnl Copyright (C) 2007 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+AC_DEFUN([gl_STDIO_H],
+[
+  AC_REQUIRE([gl_STDIO_H_DEFAULTS])
+  gl_CHECK_NEXT_HEADERS([stdio.h])
+])
+
+AC_DEFUN([gl_STDIO_MODULE_INDICATOR],
+[
+  dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
+  AC_REQUIRE([gl_STDIO_H_DEFAULTS])
+  GNULIB_[]m4_translit([$1],[abcdefghijklmnopqrstuvwxyz./-],[ABCDEFGHIJKLMNOPQRSTUVWXYZ___])=1
+])
+
+AC_DEFUN([gl_STDIO_H_DEFAULTS],
+[
+  GNULIB_FPRINTF_POSIX=0;  AC_SUBST([GNULIB_FPRINTF_POSIX])
+  GNULIB_PRINTF_POSIX=0;   AC_SUBST([GNULIB_PRINTF_POSIX])
+  GNULIB_SNPRINTF=0;       AC_SUBST([GNULIB_SNPRINTF])
+  GNULIB_SPRINTF_POSIX=0;  AC_SUBST([GNULIB_SPRINTF_POSIX])
+  GNULIB_VFPRINTF_POSIX=0; AC_SUBST([GNULIB_VFPRINTF_POSIX])
+  GNULIB_VPRINTF_POSIX=0;  AC_SUBST([GNULIB_VPRINTF_POSIX])
+  GNULIB_VSNPRINTF=0;      AC_SUBST([GNULIB_VSNPRINTF])
+  GNULIB_VSPRINTF_POSIX=0; AC_SUBST([GNULIB_VSPRINTF_POSIX])
+  GNULIB_VASPRINTF=0;      AC_SUBST([GNULIB_VASPRINTF])
+  GNULIB_FOPEN=0;          AC_SUBST([GNULIB_FOPEN])
+  GNULIB_FREOPEN=0;        AC_SUBST([GNULIB_FREOPEN])
+  GNULIB_FSEEK=0;          AC_SUBST([GNULIB_FSEEK])
+  GNULIB_FSEEKO=0;         AC_SUBST([GNULIB_FSEEKO])
+  GNULIB_FTELL=0;          AC_SUBST([GNULIB_FTELL])
+  GNULIB_FTELLO=0;         AC_SUBST([GNULIB_FTELLO])
+  GNULIB_FFLUSH=0;         AC_SUBST([GNULIB_FFLUSH])
+  GNULIB_GETDELIM=0;       AC_SUBST([GNULIB_GETDELIM])
+  GNULIB_GETLINE=0;        AC_SUBST([GNULIB_GETLINE])
+  dnl Assume proper GNU behavior unless another module says otherwise.
+  REPLACE_FPRINTF=0;       AC_SUBST([REPLACE_FPRINTF])
+  REPLACE_VFPRINTF=0;      AC_SUBST([REPLACE_VFPRINTF])
+  REPLACE_PRINTF=0;        AC_SUBST([REPLACE_PRINTF])
+  REPLACE_VPRINTF=0;       AC_SUBST([REPLACE_VPRINTF])
+  REPLACE_SNPRINTF=0;      AC_SUBST([REPLACE_SNPRINTF])
+  HAVE_DECL_SNPRINTF=1;    AC_SUBST([HAVE_DECL_SNPRINTF])
+  REPLACE_VSNPRINTF=0;     AC_SUBST([REPLACE_VSNPRINTF])
+  HAVE_DECL_VSNPRINTF=1;   AC_SUBST([HAVE_DECL_VSNPRINTF])
+  REPLACE_SPRINTF=0;       AC_SUBST([REPLACE_SPRINTF])
+  REPLACE_VSPRINTF=0;      AC_SUBST([REPLACE_VSPRINTF])
+  HAVE_VASPRINTF=1;        AC_SUBST([HAVE_VASPRINTF])
+  REPLACE_VASPRINTF=0;     AC_SUBST([REPLACE_VASPRINTF])
+  REPLACE_FOPEN=0;         AC_SUBST([REPLACE_FOPEN])
+  REPLACE_FREOPEN=0;       AC_SUBST([REPLACE_FREOPEN])
+  HAVE_FSEEKO=1;           AC_SUBST([HAVE_FSEEKO])
+  REPLACE_FSEEKO=0;        AC_SUBST([REPLACE_FSEEKO])
+  REPLACE_FSEEK=0;         AC_SUBST([REPLACE_FSEEK])
+  HAVE_FTELLO=1;           AC_SUBST([HAVE_FTELLO])
+  REPLACE_FTELLO=0;        AC_SUBST([REPLACE_FTELLO])
+  REPLACE_FTELL=0;         AC_SUBST([REPLACE_FTELL])
+  REPLACE_FFLUSH=0;        AC_SUBST([REPLACE_FFLUSH])
+  HAVE_DECL_GETDELIM=1;    AC_SUBST([HAVE_DECL_GETDELIM])
+  HAVE_DECL_GETLINE=1;     AC_SUBST([HAVE_DECL_GETLINE])
+  REPLACE_GETLINE=0;       AC_SUBST([REPLACE_GETLINE])
+])
+
+dnl Code shared by fseeko and ftello.  Determine if large files are supported,
+dnl but stdin does not start as a large file by default.
+AC_DEFUN([gl_STDIN_LARGE_OFFSET],
+  [
+    AC_CACHE_CHECK([whether stdin defaults to large file offsets],
+      [gl_cv_var_stdin_large_offset],
+      [AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <stdio.h>],
+[#if defined __SL64 && defined __SCLE /* cygwin */
+  /* Cygwin 1.5.24 and earlier fail to put stdin in 64-bit mode, making
+     fseeko/ftello needlessly fail.  This bug was fixed in 1.5.25, and
+     it is easier to do a version check than building a runtime test.  */
+# include <cygwin/version.h>
+# if CYGWIN_VERSION_DLL_COMBINED < CYGWIN_VERSION_DLL_MAKE_COMBINED (1005, 25)
+  choke me
+# endif
+#endif])],
+        [gl_cv_var_stdin_large_offset=yes],
+        [gl_cv_var_stdin_large_offset=no])])
+])
diff --git a/gl/m4/stdlib_h.m4 b/gl/m4/stdlib_h.m4
new file mode 100644
index 00000000..fe4ce122
--- /dev/null
+++ b/gl/m4/stdlib_h.m4
@@ -0,0 +1,42 @@
+# stdlib_h.m4 serial 5
+dnl Copyright (C) 2007 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+AC_DEFUN([gl_STDLIB_H],
+[
+  AC_REQUIRE([gl_STDLIB_H_DEFAULTS])
+  gl_CHECK_NEXT_HEADERS([stdlib.h])
+])
+
+AC_DEFUN([gl_STDLIB_MODULE_INDICATOR],
+[
+  dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
+  AC_REQUIRE([gl_STDLIB_H_DEFAULTS])
+  GNULIB_[]m4_translit([$1],[abcdefghijklmnopqrstuvwxyz./-],[ABCDEFGHIJKLMNOPQRSTUVWXYZ___])=1
+])
+
+AC_DEFUN([gl_STDLIB_H_DEFAULTS],
+[
+  GNULIB_MALLOC_POSIX=0;  AC_SUBST([GNULIB_MALLOC_POSIX])
+  GNULIB_REALLOC_POSIX=0; AC_SUBST([GNULIB_REALLOC_POSIX])
+  GNULIB_CALLOC_POSIX=0;  AC_SUBST([GNULIB_CALLOC_POSIX])
+  GNULIB_GETSUBOPT=0;     AC_SUBST([GNULIB_GETSUBOPT])
+  GNULIB_MKDTEMP=0;       AC_SUBST([GNULIB_MKDTEMP])
+  GNULIB_MKSTEMP=0;       AC_SUBST([GNULIB_MKSTEMP])
+  GNULIB_PUTENV=0;        AC_SUBST([GNULIB_PUTENV])
+  GNULIB_SETENV=0;        AC_SUBST([GNULIB_SETENV])
+  GNULIB_UNSETENV=0;      AC_SUBST([GNULIB_UNSETENV])
+  dnl Assume proper GNU behavior unless another module says otherwise.
+  HAVE_CALLOC_POSIX=1;    AC_SUBST([HAVE_CALLOC_POSIX])
+  HAVE_GETSUBOPT=1;       AC_SUBST([HAVE_GETSUBOPT])
+  HAVE_MALLOC_POSIX=1;    AC_SUBST([HAVE_MALLOC_POSIX])
+  HAVE_MKDTEMP=1;         AC_SUBST([HAVE_MKDTEMP])
+  HAVE_REALLOC_POSIX=1;   AC_SUBST([HAVE_REALLOC_POSIX])
+  HAVE_SETENV=1;          AC_SUBST([HAVE_SETENV])
+  HAVE_UNSETENV=1;        AC_SUBST([HAVE_UNSETENV])
+  REPLACE_MKSTEMP=0;      AC_SUBST([REPLACE_MKSTEMP])
+  REPLACE_PUTENV=0;       AC_SUBST([REPLACE_PUTENV])
+  VOID_UNSETENV=0;        AC_SUBST([VOID_UNSETENV])
+])
diff --git a/gl/m4/strcase.m4 b/gl/m4/strcase.m4
deleted file mode 100644
index ae827907..00000000
--- a/gl/m4/strcase.m4
+++ /dev/null
@@ -1,39 +0,0 @@
-# strcase.m4 serial 4
-dnl Copyright (C) 2002, 2005-2006 Free Software Foundation, Inc.
-dnl This file is free software; the Free Software Foundation
-dnl gives unlimited permission to copy and/or distribute it,
-dnl with or without modifications, as long as this notice is preserved.
-
-AC_DEFUN([gl_STRCASE],
-[
-  gl_FUNC_STRCASECMP
-  gl_FUNC_STRNCASECMP
-])
-
-AC_DEFUN([gl_FUNC_STRCASECMP],
-[
-  dnl No known system has a strcasecmp() function that works correctly in
-  dnl multibyte locales. Therefore we use our version always.
-  AC_LIBOBJ(strcasecmp)
-  gl_PREREQ_STRCASECMP
-])
-
-AC_DEFUN([gl_FUNC_STRNCASECMP],
-[
-  AC_REPLACE_FUNCS(strncasecmp)
-  AC_CHECK_DECLS(strncasecmp)
-  if test $ac_cv_func_strncasecmp = no; then
-    gl_PREREQ_STRNCASECMP
-  fi
-])
-
-# Prerequisites of lib/strcasecmp.c.
-AC_DEFUN([gl_PREREQ_STRCASECMP], [
-  AC_REQUIRE([gl_FUNC_MBRTOWC])
-  :
-])
-
-# Prerequisites of lib/strncasecmp.c.
-AC_DEFUN([gl_PREREQ_STRNCASECMP], [
-  :
-])
diff --git a/gl/m4/strdup.m4 b/gl/m4/strdup.m4
index f7786e94..8796e9e0 100644
--- a/gl/m4/strdup.m4
+++ b/gl/m4/strdup.m4
@@ -1,13 +1,20 @@
-# strdup.m4 serial 7
-dnl Copyright (C) 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
+# strdup.m4 serial 9
+
+dnl Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007 Free Software
+dnl Foundation, Inc.
+
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 
 AC_DEFUN([gl_FUNC_STRDUP],
 [
+  AC_REQUIRE([gl_HEADER_STRING_H_DEFAULTS])
   AC_REPLACE_FUNCS(strdup)
   AC_CHECK_DECLS_ONCE(strdup)
+  if test $ac_cv_have_decl_strdup = no; then
+    HAVE_DECL_STRDUP=0
+  fi
   gl_PREREQ_STRDUP
 ])
 
diff --git a/gl/m4/strerror.m4 b/gl/m4/strerror.m4
new file mode 100644
index 00000000..eb7d45aa
--- /dev/null
+++ b/gl/m4/strerror.m4
@@ -0,0 +1,47 @@
+# strerror.m4 serial 7
+dnl Copyright (C) 2002, 2007 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+AC_DEFUN([gl_FUNC_STRERROR],
+[
+  AC_REQUIRE([gl_FUNC_STRERROR_SEPARATE])
+  if test $gl_cv_func_working_strerror = no; then
+    AC_LIBOBJ([strerror])
+    AC_DEFINE_UNQUOTED([REPLACE_STRERROR], [$REPLACE_STRERROR],
+      [Define this to 1 if strerror is broken.])
+  fi
+])
+
+# Like gl_FUNC_STRERROR, except prepare for separate compilation (no AC_LIBOBJ).
+AC_DEFUN([gl_FUNC_STRERROR_SEPARATE],
+[
+  AC_REQUIRE([gl_HEADER_STRING_H_DEFAULTS])
+  AC_CACHE_CHECK([for working strerror function],
+   [gl_cv_func_working_strerror],
+   [AC_RUN_IFELSE(
+      [AC_LANG_PROGRAM(
+         [#include <string.h>
+         ],
+         [return !*strerror (-2);])],
+      [gl_cv_func_working_strerror=yes],
+      [gl_cv_func_working_strerror=no],
+      [dnl Assume crossbuild works if it compiles.
+       AC_COMPILE_IFELSE(
+         [AC_LANG_PROGRAM(
+            [#include <string.h>
+            ],
+            [return !*strerror (-2);])],
+         [gl_cv_func_working_strerror=yes],
+         [gl_cv_func_working_strerror=no])])])
+  if test $gl_cv_func_working_strerror = no ; then
+    REPLACE_STRERROR=1
+    gl_PREREQ_STRERROR
+  fi
+])
+
+# Prerequisites of lib/strerror.c.
+AC_DEFUN([gl_PREREQ_STRERROR], [
+  AC_CHECK_DECLS([strerror])
+])
diff --git a/gl/m4/string_h.m4 b/gl/m4/string_h.m4
new file mode 100644
index 00000000..766d7e98
--- /dev/null
+++ b/gl/m4/string_h.m4
@@ -0,0 +1,87 @@
+# Configure a GNU-like replacement for <string.h>.
+
+# Copyright (C) 2007, 2008 Free Software Foundation, Inc.
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# serial 4
+
+# Written by Paul Eggert.
+
+AC_DEFUN([gl_HEADER_STRING_H],
+[
+  dnl Use AC_REQUIRE here, so that the default behavior below is expanded
+  dnl once only, before all statements that occur in other macros.
+  AC_REQUIRE([gl_HEADER_STRING_H_BODY])
+])
+
+AC_DEFUN([gl_HEADER_STRING_H_BODY],
+[
+  AC_REQUIRE([AC_C_RESTRICT])
+  AC_REQUIRE([gl_HEADER_STRING_H_DEFAULTS])
+  gl_CHECK_NEXT_HEADERS([string.h])
+])
+
+AC_DEFUN([gl_STRING_MODULE_INDICATOR],
+[
+  dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
+  AC_REQUIRE([gl_HEADER_STRING_H_DEFAULTS])
+  GNULIB_[]m4_translit([$1],[abcdefghijklmnopqrstuvwxyz./-],[ABCDEFGHIJKLMNOPQRSTUVWXYZ___])=1
+])
+
+AC_DEFUN([gl_HEADER_STRING_H_DEFAULTS],
+[
+  GNULIB_MEMMEM=0;      AC_SUBST([GNULIB_MEMMEM])
+  GNULIB_MEMPCPY=0;     AC_SUBST([GNULIB_MEMPCPY])
+  GNULIB_MEMRCHR=0;     AC_SUBST([GNULIB_MEMRCHR])
+  GNULIB_STPCPY=0;      AC_SUBST([GNULIB_STPCPY])
+  GNULIB_STPNCPY=0;     AC_SUBST([GNULIB_STPNCPY])
+  GNULIB_STRCHRNUL=0;   AC_SUBST([GNULIB_STRCHRNUL])
+  GNULIB_STRDUP=0;      AC_SUBST([GNULIB_STRDUP])
+  GNULIB_STRNDUP=0;     AC_SUBST([GNULIB_STRNDUP])
+  GNULIB_STRNLEN=0;     AC_SUBST([GNULIB_STRNLEN])
+  GNULIB_STRPBRK=0;     AC_SUBST([GNULIB_STRPBRK])
+  GNULIB_STRSEP=0;      AC_SUBST([GNULIB_STRSEP])
+  GNULIB_STRSTR=0;      AC_SUBST([GNULIB_STRSTR])
+  GNULIB_STRCASESTR=0;  AC_SUBST([GNULIB_STRCASESTR])
+  GNULIB_STRTOK_R=0;    AC_SUBST([GNULIB_STRTOK_R])
+  GNULIB_MBSLEN=0;      AC_SUBST([GNULIB_MBSLEN])
+  GNULIB_MBSNLEN=0;     AC_SUBST([GNULIB_MBSNLEN])
+  GNULIB_MBSCHR=0;      AC_SUBST([GNULIB_MBSCHR])
+  GNULIB_MBSRCHR=0;     AC_SUBST([GNULIB_MBSRCHR])
+  GNULIB_MBSSTR=0;      AC_SUBST([GNULIB_MBSSTR])
+  GNULIB_MBSCASECMP=0;  AC_SUBST([GNULIB_MBSCASECMP])
+  GNULIB_MBSNCASECMP=0; AC_SUBST([GNULIB_MBSNCASECMP])
+  GNULIB_MBSPCASECMP=0; AC_SUBST([GNULIB_MBSPCASECMP])
+  GNULIB_MBSCASESTR=0;  AC_SUBST([GNULIB_MBSCASESTR])
+  GNULIB_MBSCSPN=0;     AC_SUBST([GNULIB_MBSCSPN])
+  GNULIB_MBSPBRK=0;     AC_SUBST([GNULIB_MBSPBRK])
+  GNULIB_MBSSPN=0;      AC_SUBST([GNULIB_MBSSPN])
+  GNULIB_MBSSEP=0;      AC_SUBST([GNULIB_MBSSEP])
+  GNULIB_MBSTOK_R=0;    AC_SUBST([GNULIB_MBSTOK_R])
+  GNULIB_STRERROR=0;    AC_SUBST([GNULIB_STRERROR])
+  GNULIB_STRSIGNAL=0;   AC_SUBST([GNULIB_STRSIGNAL])
+  dnl Assume proper GNU behavior unless another module says otherwise.
+  HAVE_DECL_MEMMEM=1;           AC_SUBST([HAVE_DECL_MEMMEM])
+  HAVE_MEMPCPY=1;               AC_SUBST([HAVE_MEMPCPY])
+  HAVE_DECL_MEMRCHR=1;          AC_SUBST([HAVE_DECL_MEMRCHR])
+  HAVE_STPCPY=1;                AC_SUBST([HAVE_STPCPY])
+  HAVE_STPNCPY=1;               AC_SUBST([HAVE_STPNCPY])
+  HAVE_STRCHRNUL=1;             AC_SUBST([HAVE_STRCHRNUL])
+  HAVE_DECL_STRDUP=1;           AC_SUBST([HAVE_DECL_STRDUP])
+  HAVE_STRNDUP=1;               AC_SUBST([HAVE_STRNDUP])
+  HAVE_DECL_STRNDUP=1;          AC_SUBST([HAVE_DECL_STRNDUP])
+  HAVE_DECL_STRNLEN=1;          AC_SUBST([HAVE_DECL_STRNLEN])
+  HAVE_STRPBRK=1;               AC_SUBST([HAVE_STRPBRK])
+  HAVE_STRSEP=1;                AC_SUBST([HAVE_STRSEP])
+  HAVE_STRCASESTR=1;            AC_SUBST([HAVE_STRCASESTR])
+  HAVE_DECL_STRTOK_R=1;         AC_SUBST([HAVE_DECL_STRTOK_R])
+  HAVE_DECL_STRERROR=1;         AC_SUBST([HAVE_DECL_STRERROR])
+  HAVE_DECL_STRSIGNAL=1;        AC_SUBST([HAVE_DECL_STRSIGNAL])
+  REPLACE_STRERROR=0;           AC_SUBST([REPLACE_STRERROR])
+  REPLACE_STRSIGNAL=0;          AC_SUBST([REPLACE_STRSIGNAL])
+  REPLACE_MEMMEM=0;             AC_SUBST([REPLACE_MEMMEM])
+  REPLACE_STRCASESTR=0;         AC_SUBST([REPLACE_STRCASESTR])
+  REPLACE_STRSTR=0;             AC_SUBST([REPLACE_STRSTR])
+])
diff --git a/gl/m4/strndup.m4 b/gl/m4/strndup.m4
index dd5780b6..f7934ef8 100644
--- a/gl/m4/strndup.m4
+++ b/gl/m4/strndup.m4
@@ -1,5 +1,5 @@
-# strndup.m4 serial 11
-dnl Copyright (C) 2002-2003, 2005-2006 Free Software Foundation, Inc.
+# strndup.m4 serial 14
+dnl Copyright (C) 2002-2003, 2005-2007 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -7,15 +7,19 @@ dnl with or without modifications, as long as this notice is preserved.
 AC_DEFUN([gl_FUNC_STRNDUP],
 [
   dnl Persuade glibc <string.h> to declare strndup().
-  AC_REQUIRE([AC_GNU_SOURCE])
+  AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
 
+  AC_REQUIRE([gl_HEADER_STRING_H_DEFAULTS])
   AC_CHECK_DECLS_ONCE([strndup])
+  if test $ac_cv_have_decl_strndup = no; then
+    HAVE_DECL_STRNDUP=0
+  fi
 
   # AIX 4.3.3, AIX 5.1 have a function that fails to add the terminating '\0'.
   AC_CACHE_CHECK([for working strndup], gl_cv_func_strndup,
     [AC_RUN_IFELSE([
        AC_LANG_PROGRAM([#include <string.h>
-                        #include <stdlib.h>], [[
+                        #include <stdlib.h>], [[
 #ifndef HAVE_DECL_STRNDUP
   extern char *strndup (const char *, size_t);
 #endif
@@ -39,6 +43,7 @@ AC_DEFUN([gl_FUNC_STRNDUP],
     AC_DEFINE([HAVE_STRNDUP], 1,
       [Define if you have the strndup() function and it works.])
   else
+    HAVE_STRNDUP=0
     AC_LIBOBJ([strndup])
     gl_PREREQ_STRNDUP
   fi
diff --git a/gl/m4/strnlen.m4 b/gl/m4/strnlen.m4
index 0213a8ae..d8307eda 100644
--- a/gl/m4/strnlen.m4
+++ b/gl/m4/strnlen.m4
@@ -1,5 +1,5 @@
-# strnlen.m4 serial 6
-dnl Copyright (C) 2002-2003, 2005, 2006 Free Software Foundation, Inc.
+# strnlen.m4 serial 9
+dnl Copyright (C) 2002-2003, 2005-2007 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -7,11 +7,17 @@ dnl with or without modifications, as long as this notice is preserved.
 AC_DEFUN([gl_FUNC_STRNLEN],
 [
   dnl Persuade glibc <string.h> to declare strnlen().
-  AC_REQUIRE([AC_GNU_SOURCE])
+  AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
+
+  AC_REQUIRE([gl_HEADER_STRING_H_DEFAULTS])
+  AC_CHECK_DECLS_ONCE([strnlen])
+  if test $ac_cv_have_decl_strnlen = no; then
+    HAVE_DECL_STRNLEN=0
+  fi
 
   AC_FUNC_STRNLEN
   if test $ac_cv_func_strnlen_working = no; then
-    # This is necessary because automake-1.6.1 doens't understand
+    # This is necessary because automake-1.6.1 doesn't understand
     # that the above use of AC_FUNC_STRNLEN means we may have to use
     # lib/strnlen.c.
     #AC_LIBOBJ(strnlen)
@@ -22,6 +28,4 @@ AC_DEFUN([gl_FUNC_STRNLEN],
 ])
 
 # Prerequisites of lib/strnlen.c.
-AC_DEFUN([gl_PREREQ_STRNLEN], [
-  AC_CHECK_DECLS_ONCE(strnlen)
-])
+AC_DEFUN([gl_PREREQ_STRNLEN], [:])
diff --git a/gl/m4/sys_socket_h.m4 b/gl/m4/sys_socket_h.m4
index d3e45b48..d9659c2d 100644
--- a/gl/m4/sys_socket_h.m4
+++ b/gl/m4/sys_socket_h.m4
@@ -1,5 +1,5 @@
-# sys_socket_h.m4 serial 2
-dnl Copyright (C) 2005, 2006 Free Software Foundation, Inc.
+# sys_socket_h.m4 serial 4
+dnl Copyright (C) 2005, 2006, 2007 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -8,16 +8,44 @@ dnl From Simon Josefsson.
 
 AC_DEFUN([gl_HEADER_SYS_SOCKET],
 [
-  AC_CHECK_HEADERS_ONCE([sys/socket.h])
-  if test $ac_cv_header_sys_socket_h = yes; then
+  AC_CACHE_CHECK([whether <sys/socket.h> is self-contained],
+    [gl_cv_header_sys_socket_h_selfcontained],
+    [
+      AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <sys/socket.h>], [])],
+        [gl_cv_header_sys_socket_h_selfcontained=yes],
+        [gl_cv_header_sys_socket_h_selfcontained=no])
+    ])
+  if test $gl_cv_header_sys_socket_h_selfcontained = yes; then
     SYS_SOCKET_H=''
   else
-    dnl We cannot use AC_CHECK_HEADERS_ONCE here, because that would make
-    dnl the check for those headers unconditional; yet cygwin reports
-    dnl that the headers are present but cannot be compiled (since on
-    dnl cygwin, all socket information should come from sys/socket.h).
-    AC_CHECK_HEADERS([winsock2.h ws2tcpip.h])
     SYS_SOCKET_H='sys/socket.h'
+
+    gl_CHECK_NEXT_HEADERS([sys/socket.h])
+    if test $ac_cv_header_sys_socket_h = yes; then
+      HAVE_SYS_SOCKET_H=1
+      HAVE_WINSOCK2_H=0
+      HAVE_WS2TCPIP_H=0
+    else
+      HAVE_SYS_SOCKET_H=0
+      dnl We cannot use AC_CHECK_HEADERS_ONCE here, because that would make
+      dnl the check for those headers unconditional; yet cygwin reports
+      dnl that the headers are present but cannot be compiled (since on
+      dnl cygwin, all socket information should come from sys/socket.h).
+      AC_CHECK_HEADERS([winsock2.h ws2tcpip.h])
+      if test $ac_cv_header_winsock2_h = yes; then
+        HAVE_WINSOCK2_H=1
+      else
+        HAVE_WINSOCK2_H=0
+      fi
+      if test $ac_cv_header_ws2tcpip_h = yes; then
+        HAVE_WS2TCPIP_H=1
+      else
+        HAVE_WS2TCPIP_H=0
+      fi
+    fi
+    AC_SUBST([HAVE_SYS_SOCKET_H])
+    AC_SUBST([HAVE_WINSOCK2_H])
+    AC_SUBST([HAVE_WS2TCPIP_H])
   fi
-  AC_SUBST(SYS_SOCKET_H)
+  AC_SUBST([SYS_SOCKET_H])
 ])
diff --git a/gl/m4/uintmax_t.m4 b/gl/m4/uintmax_t.m4
index bf83ed74..641c4898 100644
--- a/gl/m4/uintmax_t.m4
+++ b/gl/m4/uintmax_t.m4
@@ -1,5 +1,5 @@
-# uintmax_t.m4 serial 9
-dnl Copyright (C) 1997-2004 Free Software Foundation, Inc.
+# uintmax_t.m4 serial 10
+dnl Copyright (C) 1997-2004, 2007 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -16,8 +16,8 @@ AC_DEFUN([gl_AC_TYPE_UINTMAX_T],
   AC_REQUIRE([gl_AC_HEADER_INTTYPES_H])
   AC_REQUIRE([gl_AC_HEADER_STDINT_H])
   if test $gl_cv_header_inttypes_h = no && test $gl_cv_header_stdint_h = no; then
-    AC_REQUIRE([gl_AC_TYPE_UNSIGNED_LONG_LONG])
-    test $ac_cv_type_unsigned_long_long = yes \
+    AC_REQUIRE([AC_TYPE_UNSIGNED_LONG_LONG_INT])
+    test $ac_cv_type_unsigned_long_long_int = yes \
       && ac_type='unsigned long long' \
       || ac_type='unsigned long'
     AC_DEFINE_UNQUOTED(uintmax_t, $ac_type,
diff --git a/gl/m4/ulonglong.m4 b/gl/m4/ulonglong.m4
deleted file mode 100644
index 9fae98e3..00000000
--- a/gl/m4/ulonglong.m4
+++ /dev/null
@@ -1,48 +0,0 @@
-# ulonglong.m4 serial 6
-dnl Copyright (C) 1999-2006 Free Software Foundation, Inc.
-dnl This file is free software; the Free Software Foundation
-dnl gives unlimited permission to copy and/or distribute it,
-dnl with or without modifications, as long as this notice is preserved.
-
-dnl From Paul Eggert.
-
-# Define HAVE_UNSIGNED_LONG_LONG_INT if 'unsigned long long int' works.
-# This fixes a bug in Autoconf 2.60, but can be removed once we
-# assume 2.61 everywhere.
-
-# Note: If the type 'unsigned long long int' exists but is only 32 bits
-# large (as on some very old compilers), AC_TYPE_UNSIGNED_LONG_LONG_INT
-# will not be defined. In this case you can treat 'unsigned long long int'
-# like 'unsigned long int'.
-
-AC_DEFUN([AC_TYPE_UNSIGNED_LONG_LONG_INT],
-[
-  AC_CACHE_CHECK([for unsigned long long int],
-    [ac_cv_type_unsigned_long_long_int],
-    [AC_LINK_IFELSE(
-       [AC_LANG_PROGRAM(
-          [[unsigned long long int ull = 18446744073709551615ULL;
-            typedef int a[(18446744073709551615ULL <= (unsigned long long int) -1
-                           ? 1 : -1)];
-           int i = 63;]],
-          [[unsigned long long int ullmax = 18446744073709551615ull;
-            return (ull << 63 | ull >> 63 | ull << i | ull >> i
-                    | ullmax / ull | ullmax % ull);]])],
-       [ac_cv_type_unsigned_long_long_int=yes],
-       [ac_cv_type_unsigned_long_long_int=no])])
-  if test $ac_cv_type_unsigned_long_long_int = yes; then
-    AC_DEFINE([HAVE_UNSIGNED_LONG_LONG_INT], 1,
-      [Define to 1 if the system has the type `unsigned long long int'.])
-  fi
-])
-
-# This macro is obsolescent and should go away soon.
-AC_DEFUN([gl_AC_TYPE_UNSIGNED_LONG_LONG],
-[
-  AC_REQUIRE([AC_TYPE_UNSIGNED_LONG_LONG_INT])
-  ac_cv_type_unsigned_long_long=$ac_cv_type_unsigned_long_long_int
-  if test $ac_cv_type_unsigned_long_long = yes; then
-    AC_DEFINE(HAVE_UNSIGNED_LONG_LONG, 1,
-      [Define if you have the 'unsigned long long' type.])
-  fi
-])
diff --git a/gl/m4/unistd_h.m4 b/gl/m4/unistd_h.m4
index 9d499dfe..4b8857ca 100644
--- a/gl/m4/unistd_h.m4
+++ b/gl/m4/unistd_h.m4
@@ -1,32 +1,61 @@
-# unistd_h.m4 serial 3
-dnl Copyright (C) 2006 Free Software Foundation, Inc.
+# unistd_h.m4 serial 10
+dnl Copyright (C) 2006-2007 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 
-dnl Written by Simon Josefsson
+dnl Written by Simon Josefsson, Bruno Haible.
 
-AC_DEFUN([gl_HEADER_UNISTD],
+AC_DEFUN([gl_UNISTD_H],
 [
-  AC_CHECK_HEADERS([unistd.h], [
-    UNISTD_H=''
-  ], [
-    UNISTD_H='unistd.h'
-  ])
-  AC_SUBST(UNISTD_H)
-  dnl This module decides to build unistd.h if it is missing.
-  dnl The fchdir module decides to build unistd.h if fchdir() is missing.
-  dnl Therefore check for the prerequisites of lib/unistd.h always.
-  gl_PREREQ_UNISTD
-])
+  dnl Use AC_REQUIRE here, so that the default behavior below is expanded
+  dnl once only, before all statements that occur in other macros.
+  AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
+
+  gl_CHECK_NEXT_HEADERS([unistd.h])
 
-dnl Prerequisites of lib/unistd.h.
-AC_DEFUN([gl_PREREQ_UNISTD],
-[
   AC_CHECK_HEADERS_ONCE([unistd.h])
   if test $ac_cv_header_unistd_h = yes; then
-    gl_ABSOLUTE_HEADER([unistd.h])
-    ABSOLUTE_UNISTD_H=\"$gl_cv_absolute_unistd_h\"
+    HAVE_UNISTD_H=1
+  else
+    HAVE_UNISTD_H=0
   fi
-  AC_SUBST([ABSOLUTE_UNISTD_H])
+  AC_SUBST([HAVE_UNISTD_H])
+])
+
+AC_DEFUN([gl_UNISTD_MODULE_INDICATOR],
+[
+  dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
+  AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
+  GNULIB_[]m4_translit([$1],[abcdefghijklmnopqrstuvwxyz./-],[ABCDEFGHIJKLMNOPQRSTUVWXYZ___])=1
+])
+
+AC_DEFUN([gl_UNISTD_H_DEFAULTS],
+[
+  GNULIB_CHOWN=0;         AC_SUBST([GNULIB_CHOWN])
+  GNULIB_DUP2=0;          AC_SUBST([GNULIB_DUP2])
+  GNULIB_FCHDIR=0;        AC_SUBST([GNULIB_FCHDIR])
+  GNULIB_FTRUNCATE=0;     AC_SUBST([GNULIB_FTRUNCATE])
+  GNULIB_GETCWD=0;        AC_SUBST([GNULIB_GETCWD])
+  GNULIB_GETLOGIN_R=0;    AC_SUBST([GNULIB_GETLOGIN_R])
+  GNULIB_GETPAGESIZE=0;   AC_SUBST([GNULIB_GETPAGESIZE])
+  GNULIB_LCHOWN=0;        AC_SUBST([GNULIB_LCHOWN])
+  GNULIB_LSEEK=0;         AC_SUBST([GNULIB_LSEEK])
+  GNULIB_READLINK=0;      AC_SUBST([GNULIB_READLINK])
+  GNULIB_SLEEP=0;         AC_SUBST([GNULIB_SLEEP])
+  dnl Assume proper GNU behavior unless another module says otherwise.
+  HAVE_DUP2=1;            AC_SUBST([HAVE_DUP2])
+  HAVE_FTRUNCATE=1;       AC_SUBST([HAVE_FTRUNCATE])
+  HAVE_GETPAGESIZE=1;     AC_SUBST([HAVE_GETPAGESIZE])
+  HAVE_READLINK=1;        AC_SUBST([HAVE_READLINK])
+  HAVE_SLEEP=1;           AC_SUBST([HAVE_SLEEP])
+  HAVE_DECL_GETLOGIN_R=1; AC_SUBST([HAVE_DECL_GETLOGIN_R])
+  HAVE_OS_H=0;            AC_SUBST([HAVE_OS_H])
+  HAVE_SYS_PARAM_H=0;     AC_SUBST([HAVE_SYS_PARAM_H])
+  REPLACE_CHOWN=0;        AC_SUBST([REPLACE_CHOWN])
+  REPLACE_FCHDIR=0;       AC_SUBST([REPLACE_FCHDIR])
+  REPLACE_GETCWD=0;       AC_SUBST([REPLACE_GETCWD])
+  REPLACE_GETPAGESIZE=0;  AC_SUBST([REPLACE_GETPAGESIZE])
+  REPLACE_LCHOWN=0;       AC_SUBST([REPLACE_LCHOWN])
+  REPLACE_LSEEK=0;        AC_SUBST([REPLACE_LSEEK])
 ])
diff --git a/gl/m4/vasnprintf.m4 b/gl/m4/vasnprintf.m4
index 72c9a13e..c4d3f4fa 100644
--- a/gl/m4/vasnprintf.m4
+++ b/gl/m4/vasnprintf.m4
@@ -1,5 +1,5 @@
-# vasnprintf.m4 serial 7
-dnl Copyright (C) 2002-2004, 2006 Free Software Foundation, Inc.
+# vasnprintf.m4 serial 24
+dnl Copyright (C) 2002-2004, 2006-2008 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -7,23 +7,33 @@ dnl with or without modifications, as long as this notice is preserved.
 AC_DEFUN([gl_FUNC_VASNPRINTF],
 [
   AC_REQUIRE([gl_EOVERFLOW])
-  AC_REPLACE_FUNCS(vasnprintf)
+  AC_CHECK_FUNCS_ONCE([vasnprintf])
   if test $ac_cv_func_vasnprintf = no; then
-    AC_LIBOBJ(printf-args)
-    AC_LIBOBJ(printf-parse)
-    AC_LIBOBJ(asnprintf)
-    gl_PREREQ_PRINTF_ARGS
-    gl_PREREQ_PRINTF_PARSE
-    gl_PREREQ_VASNPRINTF
-    gl_PREREQ_ASNPRINTF
+    gl_REPLACE_VASNPRINTF
   fi
 ])
 
+AC_DEFUN([gl_REPLACE_VASNPRINTF],
+[
+  AC_CHECK_FUNCS_ONCE([vasnprintf])
+  AC_LIBOBJ([vasnprintf])
+  AC_LIBOBJ([printf-args])
+  AC_LIBOBJ([printf-parse])
+  AC_LIBOBJ([asnprintf])
+  if test $ac_cv_func_vasnprintf = yes; then
+    AC_DEFINE([REPLACE_VASNPRINTF], 1,
+      [Define if vasnprintf exists but is overridden by gnulib.])
+  fi
+  gl_PREREQ_PRINTF_ARGS
+  gl_PREREQ_PRINTF_PARSE
+  gl_PREREQ_VASNPRINTF
+  gl_PREREQ_ASNPRINTF
+])
+
 # Prequisites of lib/printf-args.h, lib/printf-args.c.
 AC_DEFUN([gl_PREREQ_PRINTF_ARGS],
 [
   AC_REQUIRE([AC_TYPE_LONG_LONG_INT])
-  AC_REQUIRE([gt_TYPE_LONGDOUBLE])
   AC_REQUIRE([gt_TYPE_WCHAR_T])
   AC_REQUIRE([gt_TYPE_WINT_T])
 ])
@@ -32,11 +42,13 @@ AC_DEFUN([gl_PREREQ_PRINTF_ARGS],
 AC_DEFUN([gl_PREREQ_PRINTF_PARSE],
 [
   AC_REQUIRE([AC_TYPE_LONG_LONG_INT])
-  AC_REQUIRE([gt_TYPE_LONGDOUBLE])
   AC_REQUIRE([gt_TYPE_WCHAR_T])
   AC_REQUIRE([gt_TYPE_WINT_T])
   AC_REQUIRE([AC_TYPE_SIZE_T])
-  AC_CHECK_TYPES(ptrdiff_t)
+  AC_CHECK_TYPE([ptrdiff_t], ,
+    [AC_DEFINE([ptrdiff_t], [long],
+       [Define as the type of the result of subtracting two pointers, if the system doesn't define it.])
+    ])
   AC_REQUIRE([gt_AC_TYPE_INTMAX_T])
 ])
 
@@ -45,10 +57,202 @@ AC_DEFUN([gl_PREREQ_VASNPRINTF],
 [
   AC_REQUIRE([AC_FUNC_ALLOCA])
   AC_REQUIRE([AC_TYPE_LONG_LONG_INT])
-  AC_REQUIRE([gt_TYPE_LONGDOUBLE])
   AC_REQUIRE([gt_TYPE_WCHAR_T])
   AC_REQUIRE([gt_TYPE_WINT_T])
   AC_CHECK_FUNCS(snprintf wcslen)
+  dnl Use the _snprintf function only if it is declared (because on NetBSD it
+  dnl is defined as a weak alias of snprintf; we prefer to use the latter).
+  AC_CHECK_DECLS([_snprintf], , , [#include <stdio.h>])
+])
+
+# Extra prerequisites of lib/vasnprintf.c for supporting 'long double'
+# arguments.
+AC_DEFUN([gl_PREREQ_VASNPRINTF_LONG_DOUBLE],
+[
+  AC_REQUIRE([gl_PRINTF_LONG_DOUBLE])
+  case "$gl_cv_func_printf_long_double" in
+    *yes)
+      ;;
+    *)
+      AC_DEFINE([NEED_PRINTF_LONG_DOUBLE], 1,
+        [Define if the vasnprintf implementation needs special code for
+         'long double' arguments.])
+      ;;
+  esac
+])
+
+# Extra prerequisites of lib/vasnprintf.c for supporting infinite 'double'
+# arguments.
+AC_DEFUN([gl_PREREQ_VASNPRINTF_INFINITE_DOUBLE],
+[
+  AC_REQUIRE([gl_PRINTF_INFINITE])
+  case "$gl_cv_func_printf_infinite" in
+    *yes)
+      ;;
+    *)
+      AC_DEFINE([NEED_PRINTF_INFINITE_DOUBLE], 1,
+        [Define if the vasnprintf implementation needs special code for
+         infinite 'double' arguments.])
+      ;;
+  esac
+])
+
+# Extra prerequisites of lib/vasnprintf.c for supporting infinite 'long double'
+# arguments.
+AC_DEFUN([gl_PREREQ_VASNPRINTF_INFINITE_LONG_DOUBLE],
+[
+  AC_REQUIRE([gl_PRINTF_INFINITE_LONG_DOUBLE])
+  dnl There is no need to set NEED_PRINTF_INFINITE_LONG_DOUBLE if
+  dnl NEED_PRINTF_LONG_DOUBLE is already set.
+  AC_REQUIRE([gl_PREREQ_VASNPRINTF_LONG_DOUBLE])
+  case "$gl_cv_func_printf_long_double" in
+    *yes)
+      case "$gl_cv_func_printf_infinite_long_double" in
+        *yes)
+          ;;
+        *)
+          AC_DEFINE([NEED_PRINTF_INFINITE_LONG_DOUBLE], 1,
+            [Define if the vasnprintf implementation needs special code for
+             infinite 'long double' arguments.])
+          ;;
+      esac
+      ;;
+  esac
+])
+
+# Extra prerequisites of lib/vasnprintf.c for supporting the 'a' directive.
+AC_DEFUN([gl_PREREQ_VASNPRINTF_DIRECTIVE_A],
+[
+  AC_REQUIRE([gl_PRINTF_DIRECTIVE_A])
+  case "$gl_cv_func_printf_directive_a" in
+    *yes)
+      ;;
+    *)
+      AC_DEFINE([NEED_PRINTF_DIRECTIVE_A], 1,
+        [Define if the vasnprintf implementation needs special code for
+         the 'a' and 'A' directives.])
+      AC_CHECK_FUNCS([nl_langinfo])
+      ;;
+  esac
+])
+
+# Extra prerequisites of lib/vasnprintf.c for supporting the 'F' directive.
+AC_DEFUN([gl_PREREQ_VASNPRINTF_DIRECTIVE_F],
+[
+  AC_REQUIRE([gl_PRINTF_DIRECTIVE_F])
+  case "$gl_cv_func_printf_directive_f" in
+    *yes)
+      ;;
+    *)
+      AC_DEFINE([NEED_PRINTF_DIRECTIVE_F], 1,
+        [Define if the vasnprintf implementation needs special code for
+         the 'F' directive.])
+      ;;
+  esac
+])
+
+# Extra prerequisites of lib/vasnprintf.c for supporting the ' flag.
+AC_DEFUN([gl_PREREQ_VASNPRINTF_FLAG_GROUPING],
+[
+  AC_REQUIRE([gl_PRINTF_FLAG_GROUPING])
+  case "$gl_cv_func_printf_flag_grouping" in
+    *yes)
+      ;;
+    *)
+      AC_DEFINE([NEED_PRINTF_FLAG_GROUPING], 1,
+        [Define if the vasnprintf implementation needs special code for the
+         ' flag.])
+      ;;
+  esac
+])
+
+# Extra prerequisites of lib/vasnprintf.c for supporting the '-' flag.
+AC_DEFUN([gl_PREREQ_VASNPRINTF_FLAG_LEFTADJUST],
+[
+  AC_REQUIRE([gl_PRINTF_FLAG_LEFTADJUST])
+  case "$gl_cv_func_printf_flag_leftadjust" in
+    *yes)
+      ;;
+    *)
+      AC_DEFINE([NEED_PRINTF_FLAG_LEFTADJUST], 1,
+        [Define if the vasnprintf implementation needs special code for the
+         '-' flag.])
+      ;;
+  esac
+])
+
+# Extra prerequisites of lib/vasnprintf.c for supporting the 0 flag.
+AC_DEFUN([gl_PREREQ_VASNPRINTF_FLAG_ZERO],
+[
+  AC_REQUIRE([gl_PRINTF_FLAG_ZERO])
+  case "$gl_cv_func_printf_flag_zero" in
+    *yes)
+      ;;
+    *)
+      AC_DEFINE([NEED_PRINTF_FLAG_ZERO], 1,
+        [Define if the vasnprintf implementation needs special code for the
+         0 flag.])
+      ;;
+  esac
+])
+
+# Extra prerequisites of lib/vasnprintf.c for supporting large precisions.
+AC_DEFUN([gl_PREREQ_VASNPRINTF_PRECISION],
+[
+  AC_REQUIRE([gl_PRINTF_PRECISION])
+  case "$gl_cv_func_printf_precision" in
+    *yes)
+      ;;
+    *)
+      AC_DEFINE([NEED_PRINTF_UNBOUNDED_PRECISION], 1,
+        [Define if the vasnprintf implementation needs special code for
+         supporting large precisions without arbitrary bounds.])
+      AC_DEFINE([NEED_PRINTF_DOUBLE], 1,
+        [Define if the vasnprintf implementation needs special code for
+         'double' arguments.])
+      AC_DEFINE([NEED_PRINTF_LONG_DOUBLE], 1,
+        [Define if the vasnprintf implementation needs special code for
+         'long double' arguments.])
+      ;;
+  esac
+])
+
+# Extra prerequisites of lib/vasnprintf.c for surviving out-of-memory
+# conditions.
+AC_DEFUN([gl_PREREQ_VASNPRINTF_ENOMEM],
+[
+  AC_REQUIRE([gl_PRINTF_ENOMEM])
+  case "$gl_cv_func_printf_enomem" in
+    *yes)
+      ;;
+    *)
+      AC_DEFINE([NEED_PRINTF_ENOMEM], 1,
+        [Define if the vasnprintf implementation needs special code for
+         surviving out-of-memory conditions.])
+      AC_DEFINE([NEED_PRINTF_DOUBLE], 1,
+        [Define if the vasnprintf implementation needs special code for
+         'double' arguments.])
+      AC_DEFINE([NEED_PRINTF_LONG_DOUBLE], 1,
+        [Define if the vasnprintf implementation needs special code for
+         'long double' arguments.])
+      ;;
+  esac
+])
+
+# Prerequisites of lib/vasnprintf.c including all extras for POSIX compliance.
+AC_DEFUN([gl_PREREQ_VASNPRINTF_WITH_EXTRAS],
+[
+  AC_REQUIRE([gl_PREREQ_VASNPRINTF])
+  gl_PREREQ_VASNPRINTF_LONG_DOUBLE
+  gl_PREREQ_VASNPRINTF_INFINITE_DOUBLE
+  gl_PREREQ_VASNPRINTF_INFINITE_LONG_DOUBLE
+  gl_PREREQ_VASNPRINTF_DIRECTIVE_A
+  gl_PREREQ_VASNPRINTF_DIRECTIVE_F
+  gl_PREREQ_VASNPRINTF_FLAG_GROUPING
+  gl_PREREQ_VASNPRINTF_FLAG_LEFTADJUST
+  gl_PREREQ_VASNPRINTF_FLAG_ZERO
+  gl_PREREQ_VASNPRINTF_PRECISION
+  gl_PREREQ_VASNPRINTF_ENOMEM
 ])
 
 # Prerequisites of lib/asnprintf.c.
diff --git a/gl/m4/vasprintf.m4 b/gl/m4/vasprintf.m4
index 18ca6327..074b03cf 100644
--- a/gl/m4/vasprintf.m4
+++ b/gl/m4/vasprintf.m4
@@ -1,25 +1,37 @@
-# vasprintf.m4 serial 2
-dnl Copyright (C) 2002-2003, 2006 Free Software Foundation, Inc.
+# vasprintf.m4 serial 6
+dnl Copyright (C) 2002-2003, 2006-2007 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 
 AC_DEFUN([gl_FUNC_VASPRINTF],
 [
-  AC_REPLACE_FUNCS(vasprintf)
+  AC_CHECK_FUNCS([vasprintf])
   if test $ac_cv_func_vasprintf = no; then
-    AC_LIBOBJ(asprintf)
-    gl_PREREQ_VASPRINTF_H
-    gl_PREREQ_VASPRINTF
-    gl_PREREQ_ASPRINTF
+    gl_REPLACE_VASPRINTF
   fi
 ])
 
-# Prerequisites of lib/vasprintf.h.
+AC_DEFUN([gl_REPLACE_VASPRINTF],
+[
+  AC_LIBOBJ([vasprintf])
+  AC_LIBOBJ([asprintf])
+  AC_REQUIRE([gl_STDIO_H_DEFAULTS])
+  if test $ac_cv_func_vasprintf = yes; then
+    REPLACE_VASPRINTF=1
+  else
+    HAVE_VASPRINTF=0
+  fi
+  gl_PREREQ_VASPRINTF_H
+  gl_PREREQ_VASPRINTF
+  gl_PREREQ_ASPRINTF
+])
+
+# Prerequisites of the vasprintf portion of lib/stdio.h.
 AC_DEFUN([gl_PREREQ_VASPRINTF_H],
 [
   dnl Persuade glibc <stdio.h> to declare asprintf() and vasprintf().
-  AC_REQUIRE([AC_GNU_SOURCE])
+  AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
 ])
 
 # Prerequisites of lib/vasprintf.c.
diff --git a/gl/m4/vsnprintf.m4 b/gl/m4/vsnprintf.m4
index cb8a9b18..accc79f8 100644
--- a/gl/m4/vsnprintf.m4
+++ b/gl/m4/vsnprintf.m4
@@ -1,13 +1,29 @@
-# vsnprintf.m4 serial 2
-dnl Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc.
+# vsnprintf.m4 serial 4
+dnl Copyright (C) 2002, 2003, 2004, 2007 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 
 AC_DEFUN([gl_FUNC_VSNPRINTF],
 [
-  AC_REPLACE_FUNCS(vsnprintf)
-  AC_CHECK_DECLS_ONCE(vsnprintf)
+  AC_REQUIRE([gl_STDIO_H_DEFAULTS])
+  AC_CHECK_FUNCS([vsnprintf])
+  if test $ac_cv_func_vsnprintf = no; then
+    gl_REPLACE_VSNPRINTF
+  fi
+  AC_CHECK_DECLS_ONCE([vsnprintf])
+  if test $ac_cv_have_decl_vsnprintf = no; then
+    HAVE_DECL_VSNPRINTF=0
+  fi
+])
+
+AC_DEFUN([gl_REPLACE_VSNPRINTF],
+[
+  AC_REQUIRE([gl_STDIO_H_DEFAULTS])
+  AC_LIBOBJ([vsnprintf])
+  if test $ac_cv_func_vsnprintf = yes; then
+    REPLACE_VSNPRINTF=1
+  fi
   gl_PREREQ_VSNPRINTF
 ])
 
diff --git a/gl/m4/wchar.m4 b/gl/m4/wchar.m4
index 068f22d3..70b1248f 100644
--- a/gl/m4/wchar.m4
+++ b/gl/m4/wchar.m4
@@ -7,23 +7,48 @@ dnl with or without modifications, as long as this notice is preserved.
 
 dnl Written by Eric Blake.
 
-# wchar.m4 serial 1
+# wchar.m4 serial 4
 
 AC_DEFUN([gl_WCHAR_H],
 [
+  AC_REQUIRE([gl_WCHAR_H_DEFAULTS])
   AC_CACHE_CHECK([whether <wchar.h> is standalone],
     [gl_cv_header_wchar_h_standalone],
     [AC_COMPILE_IFELSE([[#include <wchar.h>
 wchar_t w;]],
       [gl_cv_header_wchar_h_standalone=yes],
       [gl_cv_header_wchar_h_standalone=no])])
-  if test $gl_cv_header_wchar_h_standalone = yes; then
-    WCHAR_H=
-  else
-    gl_ABSOLUTE_HEADER([wchar.h])
-    ABSOLUTE_WCHAR_H=\"$gl_cv_absolute_wchar_h\"
+  if test $gl_cv_header_wchar_h_standalone != yes; then
     WCHAR_H=wchar.h
   fi
-  AC_SUBST([ABSOLUTE_WCHAR_H])
+
+  dnl Prepare for creating substitute <wchar.h>.
+  dnl Do it always: WCHAR_H may be empty here but can be set later.
+  dnl Check for <wchar.h> (missing in Linux uClibc when built without wide
+  dnl character support).
+  AC_CHECK_HEADERS_ONCE([wchar.h])
+  if test $ac_cv_header_wchar_h = yes; then
+    HAVE_WCHAR_H=1
+  else
+    HAVE_WCHAR_H=0
+  fi
+  AC_SUBST([HAVE_WCHAR_H])
+  gl_CHECK_NEXT_HEADERS([wchar.h])
+])
+
+AC_DEFUN([gl_WCHAR_MODULE_INDICATOR],
+[
+  dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
+  AC_REQUIRE([gl_WCHAR_H_DEFAULTS])
+  GNULIB_[]m4_translit([$1],[abcdefghijklmnopqrstuvwxyz./-],[ABCDEFGHIJKLMNOPQRSTUVWXYZ___])=1
+])
+
+AC_DEFUN([gl_WCHAR_H_DEFAULTS],
+[
+  GNULIB_WCWIDTH=0; AC_SUBST([GNULIB_WCWIDTH])
+  dnl Assume proper GNU behavior unless another module says otherwise.
+  HAVE_DECL_WCWIDTH=1; AC_SUBST([HAVE_DECL_WCWIDTH])
+  REPLACE_WCWIDTH=0;   AC_SUBST([REPLACE_WCWIDTH])
+  WCHAR_H=
   AC_SUBST([WCHAR_H])
 ])
diff --git a/gl/m4/wctype.m4 b/gl/m4/wctype.m4
index 62994c62..7483c4fe 100644
--- a/gl/m4/wctype.m4
+++ b/gl/m4/wctype.m4
@@ -10,6 +10,12 @@ dnl Written by Paul Eggert.
 AC_DEFUN([gl_WCTYPE_H],
 [
   AC_CHECK_FUNCS_ONCE([iswcntrl])
+  if test $ac_cv_func_iswcntrl = yes; then
+    HAVE_ISWCNTRL=1
+  else
+    HAVE_ISWCNTRL=0
+  fi
+  AC_SUBST([HAVE_ISWCNTRL])
   AC_CHECK_HEADERS_ONCE([wctype.h])
   AC_REQUIRE([AC_C_INLINE])
 
@@ -23,19 +29,16 @@ AC_DEFUN([gl_WCTYPE_H],
 
   WCTYPE_H=wctype.h
   if test $ac_cv_header_wctype_h = yes; then
-    if test "$ac_cv_func_iswcntrl" = yes; then
+    if test $ac_cv_func_iswcntrl = yes; then
       WCTYPE_H=
     fi
-    dnl Compute ABSOLUTE_WCTYPE_H even if WCTYPE_H is empty,
+    dnl Compute NEXT_WCTYPE_H even if WCTYPE_H is empty,
     dnl for the benefit of builds from non-distclean directories.
-    gl_ABSOLUTE_HEADER([wctype.h])
-    ABSOLUTE_WCTYPE_H=\"$gl_cv_absolute_wctype_h\"
+    gl_CHECK_NEXT_HEADERS([wctype.h])
     HAVE_WCTYPE_H=1
   else
-    ABSOLUTE_WCTYPE_H=\"no/such/file/wctype.h\"
     HAVE_WCTYPE_H=0
   fi
-  AC_SUBST([ABSOLUTE_WCTYPE_H])
   AC_SUBST([HAVE_WCTYPE_H])
   AC_SUBST([WCTYPE_H])
 ])
diff --git a/gl/m4/wcwidth.m4 b/gl/m4/wcwidth.m4
deleted file mode 100644
index b4834991..00000000
--- a/gl/m4/wcwidth.m4
+++ /dev/null
@@ -1,30 +0,0 @@
-# wcwidth.m4 serial 8
-dnl Copyright (C) 2006, 2007 Free Software Foundation, Inc.
-dnl This file is free software; the Free Software Foundation
-dnl gives unlimited permission to copy and/or distribute it,
-dnl with or without modifications, as long as this notice is preserved.
-
-AC_DEFUN([gl_FUNC_WCWIDTH],
-[
-  dnl Persuade glibc <wchar.h> to declare wcwidth().
-  AC_REQUIRE([AC_GNU_SOURCE])
-
-  AC_REQUIRE([AC_C_INLINE])
-  AC_REQUIRE([gt_TYPE_WCHAR_T])
-  AC_REQUIRE([gt_TYPE_WINT_T])
-
-  AC_CHECK_HEADERS_ONCE([wchar.h])
-  AC_CHECK_FUNCS_ONCE([wcwidth])
-
-  AC_CHECK_DECLS([wcwidth], [], [], [
-/* AIX 3.2.5 declares wcwidth in <string.h>. */
-#include <string.h>
-/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before
-   <wchar.h>.
-   BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be included
-   before <wchar.h>.  */
-#include <stddef.h>
-#include <stdio.h>
-#include <time.h>
-#include <wchar.h>
-])])
diff --git a/gl/m4/wint_t.m4 b/gl/m4/wint_t.m4
index 3706c047..af5ed936 100644
--- a/gl/m4/wint_t.m4
+++ b/gl/m4/wint_t.m4
@@ -1,4 +1,4 @@
-# wint_t.m4 serial 2 (gettext-0.12)
+# wint_t.m4 serial 2 (gettext-0.17)
 dnl Copyright (C) 2003, 2007 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
diff --git a/gl/malloc.c b/gl/malloc.c
index d4dae3e1..f2f66637 100644
--- a/gl/malloc.c
+++ b/gl/malloc.c
@@ -1,10 +1,10 @@
 /* malloc() function that is glibc compatible.
 
-   Copyright (C) 1997, 1998, 2006 Free Software Foundation, Inc.
+   Copyright (C) 1997, 1998, 2006, 2007 Free Software Foundation, Inc.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
+   the Free Software Foundation; either version 3, or (at your option)
    any later version.
 
    This program is distributed in the hope that it will be useful,
@@ -16,20 +16,42 @@
    along with this program; if not, write to the Free Software Foundation,
    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
 
-/* written by Jim Meyering */
+/* written by Jim Meyering and Bruno Haible */
 
 #include <config.h>
-#undef malloc
+/* Only the AC_FUNC_MALLOC macro defines 'malloc' already in config.h.  */
+#ifdef malloc
+# define NEED_MALLOC_GNU
+# undef malloc
+#endif
 
+/* Specification.  */
 #include <stdlib.h>
 
+#include <errno.h>
+
+/* Call the system's malloc below.  */
+#undef malloc
+
 /* Allocate an N-byte block of memory from the heap.
    If N is zero, allocate a 1-byte block.  */
 
 void *
 rpl_malloc (size_t n)
 {
+  void *result;
+
+#ifdef NEED_MALLOC_GNU
   if (n == 0)
     n = 1;
-  return malloc (n);
+#endif
+
+  result = malloc (n);
+
+#if !HAVE_MALLOC_POSIX
+  if (result == NULL)
+    errno = ENOMEM;
+#endif
+
+  return result;
 }
diff --git a/gl/mbchar.c b/gl/mbchar.c
deleted file mode 100644
index 95373f58..00000000
--- a/gl/mbchar.c
+++ /dev/null
@@ -1,36 +0,0 @@
-/* Copyright (C) 2001, 2006 Free Software Foundation, Inc.
-
-   This program is free software; you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software Foundation,
-   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
-
-
-#include <config.h>
-
-#include <limits.h>
-
-#include "mbchar.h"
-
-#if IS_BASIC_ASCII
-
-/* Bit table of characters in the ISO C "basic character set".  */
-const unsigned int is_basic_table [UCHAR_MAX / 32 + 1] =
-{
-  0x00001a00,           /* '\t' '\v' '\f' */
-  0xffffffef,           /* ' '...'#' '%'...'?' */
-  0xfffffffe,           /* 'A'...'Z' '[' '\\' ']' '^' '_' */
-  0x7ffffffe            /* 'a'...'z' '{' '|' '}' '~' */
-  /* The remaining bits are 0.  */
-};
-
-#endif /* IS_BASIC_ASCII */
diff --git a/gl/mbchar.h b/gl/mbchar.h
deleted file mode 100644
index f3e28ef5..00000000
--- a/gl/mbchar.h
+++ /dev/null
@@ -1,353 +0,0 @@
-/* Multibyte character data type.
-   Copyright (C) 2001, 2005-2006 Free Software Foundation, Inc.
-
-   This program is free software; you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software Foundation,
-   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
-
-/* Written by Bruno Haible <bruno@clisp.org>.  */
-
-/* A multibyte character is a short subsequence of a char* string,
-   representing a single wide character.
-
-   We use multibyte characters instead of wide characters because of
-   the following goals:
-   1) correct multibyte handling, i.e. operate according to the LC_CTYPE
-      locale,
-   2) ease of maintenance, i.e. the maintainer needs not know all details
-      of the ISO C 99 standard,
-   3) don't fail grossly if the input is not in the encoding set by the
-      locale, because often different encodings are in use in the same
-      countries (ISO-8859-1/UTF-8, EUC-JP/Shift_JIS, ...),
-   4) fast in the case of ASCII characters,
-   5) portability, i.e. don't make unportable assumptions about wchar_t.
-
-   Multibyte characters are only accessed through the mb* macros.
-
-   mb_ptr (mbc)
-     return a pointer to the beginning of the multibyte sequence.
-
-   mb_len (mbc)
-     returns the number of bytes occupied by the multibyte sequence.
-     Always > 0.
-
-   mb_iseq (mbc, sc)
-     returns true if mbc is the standard ASCII character sc.
-
-   mb_isnul (mbc)
-     returns true if mbc is the nul character.
-
-   mb_cmp (mbc1, mbc2)
-     returns a positive, zero, or negative value depending on whether mbc1
-     sorts after, same or before mbc2.
-
-   mb_casecmp (mbc1, mbc2)
-     returns a positive, zero, or negative value depending on whether mbc1
-     sorts after, same or before mbc2, modulo upper/lowercase conversion.
-
-   mb_equal (mbc1, mbc2)
-     returns true if mbc1 and mbc2 are equal.
-
-   mb_caseequal (mbc1, mbc2)
-     returns true if mbc1 and mbc2 are equal modulo upper/lowercase conversion.
-
-   mb_isalnum (mbc)
-     returns true if mbc is alphanumeric.
-
-   mb_isalpha (mbc)
-     returns true if mbc is alphabetic.
-
-   mb_isascii(mbc)
-     returns true if mbc is plain ASCII.
-
-   mb_isblank (mbc)
-     returns true if mbc is a blank.
-
-   mb_iscntrl (mbc)
-     returns true if mbc is a control character.
-
-   mb_isdigit (mbc)
-     returns true if mbc is a decimal digit.
-
-   mb_isgraph (mbc)
-     returns true if mbc is a graphic character.
-
-   mb_islower (mbc)
-     returns true if mbc is lowercase.
-
-   mb_isprint (mbc)
-     returns true if mbc is a printable character.
-
-   mb_ispunct (mbc)
-     returns true if mbc is a punctuation character.
-
-   mb_isspace (mbc)
-     returns true if mbc is a space character.
-
-   mb_isupper (mbc)
-     returns true if mbc is uppercase.
-
-   mb_isxdigit (mbc)
-     returns true if mbc is a hexadecimal digit.
-
-   mb_width (mbc)
-     returns the number of columns on the output device occupied by mbc.
-     Always >= 0.
-
-   mb_putc (mbc, stream)
-     outputs mbc on stream, a byte oriented FILE stream opened for output.
-
-   mb_setascii (&mbc, sc)
-     assigns the standard ASCII character sc to mbc.
-
-   mb_copy (&destmbc, &srcmbc)
-     copies srcmbc to destmbc.
-
-   Here are the function prototypes of the macros.
-
-   extern const char *  mb_ptr (const mbchar_t mbc);
-   extern size_t        mb_len (const mbchar_t mbc);
-   extern bool          mb_iseq (const mbchar_t mbc, char sc);
-   extern bool          mb_isnul (const mbchar_t mbc);
-   extern int           mb_cmp (const mbchar_t mbc1, const mbchar_t mbc2);
-   extern int           mb_casecmp (const mbchar_t mbc1, const mbchar_t mbc2);
-   extern bool          mb_equal (const mbchar_t mbc1, const mbchar_t mbc2);
-   extern bool          mb_caseequal (const mbchar_t mbc1, const mbchar_t mbc2);
-   extern bool          mb_isalnum (const mbchar_t mbc);
-   extern bool          mb_isalpha (const mbchar_t mbc);
-   extern bool          mb_isascii (const mbchar_t mbc);
-   extern bool          mb_isblank (const mbchar_t mbc);
-   extern bool          mb_iscntrl (const mbchar_t mbc);
-   extern bool          mb_isdigit (const mbchar_t mbc);
-   extern bool          mb_isgraph (const mbchar_t mbc);
-   extern bool          mb_islower (const mbchar_t mbc);
-   extern bool          mb_isprint (const mbchar_t mbc);
-   extern bool          mb_ispunct (const mbchar_t mbc);
-   extern bool          mb_isspace (const mbchar_t mbc);
-   extern bool          mb_isupper (const mbchar_t mbc);
-   extern bool          mb_isxdigit (const mbchar_t mbc);
-   extern int           mb_width (const mbchar_t mbc);
-   extern void          mb_putc (const mbchar_t mbc, FILE *stream);
-   extern void          mb_setascii (mbchar_t *new, char sc);
-   extern void          mb_copy (mbchar_t *new, const mbchar_t *old);
- */
-
-#ifndef _MBCHAR_H
-#define _MBCHAR_H 1
-
-#include <stdbool.h>
-#include <string.h>
-
-/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before
-   <wchar.h>.
-   BSD/OS 4.1 has a bug: <stdio.h> and <time.h> must be included before
-   <wchar.h>.  */
-#include <stdio.h>
-#include <time.h>
-#include <wchar.h>
-#include <wctype.h>
-
-#include "wcwidth.h"
-
-#define MBCHAR_BUF_SIZE 24
-
-struct mbchar
-{
-  const char *ptr;      /* pointer to current character */
-  size_t bytes;         /* number of bytes of current character, > 0 */
-  bool wc_valid;        /* true if wc is a valid wide character */
-  wchar_t wc;           /* if wc_valid: the current character */
-  char buf[MBCHAR_BUF_SIZE]; /* room for the bytes, used for file input only */
-};
-
-/* EOF (not a real character) is represented with bytes = 0 and
-   wc_valid = false.  */
-
-typedef struct mbchar mbchar_t;
-
-/* Access the current character.  */
-#define mb_ptr(mbc) ((mbc).ptr)
-#define mb_len(mbc) ((mbc).bytes)
-
-/* Comparison of characters.  */
-#define mb_iseq(mbc, sc) ((mbc).wc_valid && (mbc).wc == (sc))
-#define mb_isnul(mbc) ((mbc).wc_valid && (mbc).wc == 0)
-#define mb_cmp(mbc1, mbc2) \
-  ((mbc1).wc_valid                                                      \
-   ? ((mbc2).wc_valid                                                   \
-      ? (int) (mbc1).wc - (int) (mbc2).wc                               \
-      : -1)                                                             \
-   : ((mbc2).wc_valid                                                   \
-      ? 1                                                               \
-      : (mbc1).bytes == (mbc2).bytes                                    \
-        ? memcmp ((mbc1).ptr, (mbc2).ptr, (mbc1).bytes)                 \
-        : (mbc1).bytes < (mbc2).bytes                                   \
-          ? (memcmp ((mbc1).ptr, (mbc2).ptr, (mbc1).bytes) > 0 ? 1 : -1) \
-          : (memcmp ((mbc1).ptr, (mbc2).ptr, (mbc2).bytes) >= 0 ? 1 : -1)))
-#define mb_casecmp(mbc1, mbc2) \
-  ((mbc1).wc_valid                                                      \
-   ? ((mbc2).wc_valid                                                   \
-      ? (int) towlower ((mbc1).wc) - (int) towlower ((mbc2).wc)         \
-      : -1)                                                             \
-   : ((mbc2).wc_valid                                                   \
-      ? 1                                                               \
-      : (mbc1).bytes == (mbc2).bytes                                    \
-        ? memcmp ((mbc1).ptr, (mbc2).ptr, (mbc1).bytes)                 \
-        : (mbc1).bytes < (mbc2).bytes                                   \
-          ? (memcmp ((mbc1).ptr, (mbc2).ptr, (mbc1).bytes) > 0 ? 1 : -1) \
-          : (memcmp ((mbc1).ptr, (mbc2).ptr, (mbc2).bytes) >= 0 ? 1 : -1)))
-#define mb_equal(mbc1, mbc2) \
-  ((mbc1).wc_valid && (mbc2).wc_valid                                   \
-   ? (mbc1).wc == (mbc2).wc                                             \
-   : (mbc1).bytes == (mbc2).bytes                                       \
-     && memcmp ((mbc1).ptr, (mbc2).ptr, (mbc1).bytes) == 0)
-#define mb_caseequal(mbc1, mbc2) \
-  ((mbc1).wc_valid && (mbc2).wc_valid                                   \
-   ? towlower ((mbc1).wc) == towlower ((mbc2).wc)                       \
-   : (mbc1).bytes == (mbc2).bytes                                       \
-     && memcmp ((mbc1).ptr, (mbc2).ptr, (mbc1).bytes) == 0)
-
-/* <ctype.h>, <wctype.h> classification.  */
-#define mb_isascii(mbc) \
-  ((mbc).wc_valid && (mbc).wc >= 0 && (mbc).wc <= 127)
-#define mb_isalnum(mbc) ((mbc).wc_valid && iswalnum ((mbc).wc))
-#define mb_isalpha(mbc) ((mbc).wc_valid && iswalpha ((mbc).wc))
-#define mb_isblank(mbc) ((mbc).wc_valid && iswblank ((mbc).wc))
-#define mb_iscntrl(mbc) ((mbc).wc_valid && iswcntrl ((mbc).wc))
-#define mb_isdigit(mbc) ((mbc).wc_valid && iswdigit ((mbc).wc))
-#define mb_isgraph(mbc) ((mbc).wc_valid && iswgraph ((mbc).wc))
-#define mb_islower(mbc) ((mbc).wc_valid && iswlower ((mbc).wc))
-#define mb_isprint(mbc) ((mbc).wc_valid && iswprint ((mbc).wc))
-#define mb_ispunct(mbc) ((mbc).wc_valid && iswpunct ((mbc).wc))
-#define mb_isspace(mbc) ((mbc).wc_valid && iswspace ((mbc).wc))
-#define mb_isupper(mbc) ((mbc).wc_valid && iswupper ((mbc).wc))
-#define mb_isxdigit(mbc) ((mbc).wc_valid && iswxdigit ((mbc).wc))
-
-/* Extra <wchar.h> function.  */
-
-/* Unprintable characters appear as a small box of width 1.  */
-#define MB_UNPRINTABLE_WIDTH 1
-
-static inline int
-mb_width_aux (wint_t wc)
-{
-  int w = wcwidth (wc);
-  /* For unprintable characters, arbitrarily return 0 for control characters
-     and MB_UNPRINTABLE_WIDTH otherwise.  */
-  return (w >= 0 ? w : iswcntrl (wc) ? 0 : MB_UNPRINTABLE_WIDTH);
-}
-
-#define mb_width(mbc) \
-  ((mbc).wc_valid ? mb_width_aux ((mbc).wc) : MB_UNPRINTABLE_WIDTH)
-
-/* Output.  */
-#define mb_putc(mbc, stream)  fwrite ((mbc).ptr, 1, (mbc).bytes, (stream))
-
-/* Assignment.  */
-#define mb_setascii(mbc, sc) \
-  ((mbc)->ptr = (mbc)->buf, (mbc)->bytes = 1, (mbc)->wc_valid = 1, \
-   (mbc)->wc = (mbc)->buf[0] = (sc))
-
-/* Copying a character.  */
-static inline void
-mb_copy (mbchar_t *new_mbc, const mbchar_t *old_mbc)
-{
-  if (old_mbc->ptr == &old_mbc->buf[0])
-    {
-      memcpy (&new_mbc->buf[0], &old_mbc->buf[0], old_mbc->bytes);
-      new_mbc->ptr = &new_mbc->buf[0];
-    }
-  else
-    new_mbc->ptr = old_mbc->ptr;
-  new_mbc->bytes = old_mbc->bytes;
-  if ((new_mbc->wc_valid = old_mbc->wc_valid))
-    new_mbc->wc = old_mbc->wc;
-}
-
-
-/* is_basic(c) tests whether the single-byte character c is in the
-   ISO C "basic character set".
-   This is a convenience function, and is in this file only to share code
-   between mbiter_multi.h and mbfile_multi.h.  */
-#if (' ' == 32) && ('!' == 33) && ('"' == 34) && ('#' == 35) \
-    && ('%' == 37) && ('&' == 38) && ('\'' == 39) && ('(' == 40) \
-    && (')' == 41) && ('*' == 42) && ('+' == 43) && (',' == 44) \
-    && ('-' == 45) && ('.' == 46) && ('/' == 47) && ('0' == 48) \
-    && ('1' == 49) && ('2' == 50) && ('3' == 51) && ('4' == 52) \
-    && ('5' == 53) && ('6' == 54) && ('7' == 55) && ('8' == 56) \
-    && ('9' == 57) && (':' == 58) && (';' == 59) && ('<' == 60) \
-    && ('=' == 61) && ('>' == 62) && ('?' == 63) && ('A' == 65) \
-    && ('B' == 66) && ('C' == 67) && ('D' == 68) && ('E' == 69) \
-    && ('F' == 70) && ('G' == 71) && ('H' == 72) && ('I' == 73) \
-    && ('J' == 74) && ('K' == 75) && ('L' == 76) && ('M' == 77) \
-    && ('N' == 78) && ('O' == 79) && ('P' == 80) && ('Q' == 81) \
-    && ('R' == 82) && ('S' == 83) && ('T' == 84) && ('U' == 85) \
-    && ('V' == 86) && ('W' == 87) && ('X' == 88) && ('Y' == 89) \
-    && ('Z' == 90) && ('[' == 91) && ('\\' == 92) && (']' == 93) \
-    && ('^' == 94) && ('_' == 95) && ('a' == 97) && ('b' == 98) \
-    && ('c' == 99) && ('d' == 100) && ('e' == 101) && ('f' == 102) \
-    && ('g' == 103) && ('h' == 104) && ('i' == 105) && ('j' == 106) \
-    && ('k' == 107) && ('l' == 108) && ('m' == 109) && ('n' == 110) \
-    && ('o' == 111) && ('p' == 112) && ('q' == 113) && ('r' == 114) \
-    && ('s' == 115) && ('t' == 116) && ('u' == 117) && ('v' == 118) \
-    && ('w' == 119) && ('x' == 120) && ('y' == 121) && ('z' == 122) \
-    && ('{' == 123) && ('|' == 124) && ('}' == 125) && ('~' == 126)
-/* The character set is ISO-646, not EBCDIC. */
-# define IS_BASIC_ASCII 1
-
-extern const unsigned int is_basic_table[];
-
-static inline bool
-is_basic (char c)
-{
-  return (is_basic_table [(unsigned char) c >> 5] >> ((unsigned char) c & 31))
-         & 1;
-}
-
-#else
-
-static inline bool
-is_basic (char c)
-{
-  switch (c)
-    {
-    case '\t': case '\v': case '\f':
-    case ' ': case '!': case '"': case '#': case '%':
-    case '&': case '\'': case '(': case ')': case '*':
-    case '+': case ',': case '-': case '.': case '/':
-    case '0': case '1': case '2': case '3': case '4':
-    case '5': case '6': case '7': case '8': case '9':
-    case ':': case ';': case '<': case '=': case '>':
-    case '?':
-    case 'A': case 'B': case 'C': case 'D': case 'E':
-    case 'F': case 'G': case 'H': case 'I': case 'J':
-    case 'K': case 'L': case 'M': case 'N': case 'O':
-    case 'P': case 'Q': case 'R': case 'S': case 'T':
-    case 'U': case 'V': case 'W': case 'X': case 'Y':
-    case 'Z':
-    case '[': case '\\': case ']': case '^': case '_':
-    case 'a': case 'b': case 'c': case 'd': case 'e':
-    case 'f': case 'g': case 'h': case 'i': case 'j':
-    case 'k': case 'l': case 'm': case 'n': case 'o':
-    case 'p': case 'q': case 'r': case 's': case 't':
-    case 'u': case 'v': case 'w': case 'x': case 'y':
-    case 'z': case '{': case '|': case '}': case '~':
-      return 1;
-    default:
-      return 0;
-    }
-}
-
-#endif
-
-#endif /* _MBCHAR_H */
diff --git a/gl/mbuiter.h b/gl/mbuiter.h
deleted file mode 100644
index 9da3a6c7..00000000
--- a/gl/mbuiter.h
+++ /dev/null
@@ -1,203 +0,0 @@
-/* Iterating through multibyte strings: macros for multi-byte encodings.
-   Copyright (C) 2001, 2005 Free Software Foundation, Inc.
-
-   This program is free software; you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software Foundation,
-   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
-
-/* Written by Bruno Haible <bruno@clisp.org>.  */
-
-/* The macros in this file implement forward iteration through a
-   multi-byte string, without knowing its length a-priori.
-
-   With these macros, an iteration loop that looks like
-
-      char *iter;
-      for (iter = buf; *iter != '\0'; iter++)
-        {
-          do_something (*iter);
-        }
-
-   becomes
-
-      mbui_iterator_t iter;
-      for (mbui_init (iter, buf); mbui_avail (iter); mbui_advance (iter))
-        {
-          do_something (mbui_cur_ptr (iter), mb_len (mbui_cur (iter)));
-        }
-
-   The benefit of these macros over plain use of mbrtowc is:
-   - Handling of invalid multibyte sequences is possible without
-     making the code more complicated, while still preserving the
-     invalid multibyte sequences.
-
-   Compared to mbiter.h, the macros here don't need to know the string's
-   length a-priori.  The downside is that at each step, the look-ahead
-   that guards against overrunning the terminating '\0' is more expensive.
-   The mbui_* macros are therefore suitable when there is a high probability
-   that only the first few multibyte characters need to be inspected.
-   Whereas the mbi_* macros are better if usually the iteration runs
-   through the entire string.
-
-   mbui_iterator_t
-     is a type usable for variable declarations.
-
-   mbui_init (iter, startptr)
-     initializes the iterator, starting at startptr.
-
-   mbui_avail (iter)
-     returns true if there are more multibyte chracters available before
-     the end of string is reached. In this case, mbui_cur (iter) is
-     initialized to the next multibyte chracter.
-
-   mbui_advance (iter)
-     advances the iterator by one multibyte character.
-
-   mbui_cur (iter)
-     returns the current multibyte character, of type mbchar_t.  All the
-     macros defined in mbchar.h can be used on it.
-
-   mbui_cur_ptr (iter)
-     return a pointer to the beginning of the current multibyte character.
-
-   mbui_reloc (iter, ptrdiff)
-     relocates iterator when the string is moved by ptrdiff bytes.
-
-   Here are the function prototypes of the macros.
-
-   extern void          mbui_init (mbui_iterator_t iter, const char *startptr);
-   extern bool          mbui_avail (mbui_iterator_t iter);
-   extern void          mbui_advance (mbui_iterator_t iter);
-   extern mbchar_t      mbui_cur (mbui_iterator_t iter);
-   extern const char *  mbui_cur_ptr (mbui_iterator_t iter);
-   extern void          mbui_reloc (mbui_iterator_t iter, ptrdiff_t ptrdiff);
- */
-
-#ifndef _MBUITER_H
-#define _MBUITER_H 1
-
-#include <assert.h>
-#include <stdbool.h>
-#include <stdlib.h>
-
-/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before
-   <wchar.h>.
-   BSD/OS 4.1 has a bug: <stdio.h> and <time.h> must be included before
-   <wchar.h>.  */
-#include <stdio.h>
-#include <time.h>
-#include <wchar.h>
-
-#include "mbchar.h"
-#include "strnlen1.h"
-
-struct mbuiter_multi
-{
-  bool in_shift;        /* true if next byte may not be interpreted as ASCII */
-  mbstate_t state;      /* if in_shift: current shift state */
-  bool next_done;       /* true if mbui_avail has already filled the following */
-  struct mbchar cur;    /* the current character:
-        const char *cur.ptr             pointer to current character
-        The following are only valid after mbui_avail.
-        size_t cur.bytes                number of bytes of current character
-        bool cur.wc_valid               true if wc is a valid wide character
-        wchar_t cur.wc                  if wc_valid: the current character
-        */
-};
-
-static inline void
-mbuiter_multi_next (struct mbuiter_multi *iter)
-{
-  if (iter->next_done)
-    return;
-  if (iter->in_shift)
-    goto with_shift;
-  /* Handle most ASCII characters quickly, without calling mbrtowc().  */
-  if (is_basic (*iter->cur.ptr))
-    {
-      /* These characters are part of the basic character set.  ISO C 99
-         guarantees that their wide character code is identical to their
-         char code.  */
-      iter->cur.bytes = 1;
-      iter->cur.wc = *iter->cur.ptr;
-      iter->cur.wc_valid = true;
-    }
-  else
-    {
-      assert (mbsinit (&iter->state));
-      iter->in_shift = true;
-    with_shift:
-      iter->cur.bytes = mbrtowc (&iter->cur.wc, iter->cur.ptr,
-                                 strnlen1 (iter->cur.ptr, MB_CUR_MAX),
-                                 &iter->state);
-      if (iter->cur.bytes == (size_t) -1)
-        {
-          /* An invalid multibyte sequence was encountered.  */
-          iter->cur.bytes = 1;
-          iter->cur.wc_valid = false;
-          /* Whether to set iter->in_shift = false and reset iter->state
-             or not is not very important; the string is bogus anyway.  */
-        }
-      else if (iter->cur.bytes == (size_t) -2)
-        {
-          /* An incomplete multibyte character at the end.  */
-          iter->cur.bytes = strlen (iter->cur.ptr);
-          iter->cur.wc_valid = false;
-          /* Whether to set iter->in_shift = false and reset iter->state
-             or not is not important; the string end is reached anyway.  */
-        }
-      else
-        {
-          if (iter->cur.bytes == 0)
-            {
-              /* A null wide character was encountered.  */
-              iter->cur.bytes = 1;
-              assert (*iter->cur.ptr == '\0');
-              assert (iter->cur.wc == 0);
-            }
-          iter->cur.wc_valid = true;
-
-          /* When in the initial state, we can go back treating ASCII
-             characters more quickly.  */
-          if (mbsinit (&iter->state))
-            iter->in_shift = false;
-        }
-    }
-  iter->next_done = true;
-}
-
-static inline void
-mbuiter_multi_reloc (struct mbuiter_multi *iter, ptrdiff_t ptrdiff)
-{
-  iter->cur.ptr += ptrdiff;
-}
-
-/* Iteration macros.  */
-typedef struct mbuiter_multi mbui_iterator_t;
-#define mbui_init(iter, startptr) \
-  ((iter).cur.ptr = (startptr), \
-   (iter).in_shift = false, memset (&(iter).state, '\0', sizeof (mbstate_t)), \
-   (iter).next_done = false)
-#define mbui_avail(iter) \
-  (mbuiter_multi_next (&(iter)), !mb_isnul ((iter).cur))
-#define mbui_advance(iter) \
-  ((iter).cur.ptr += (iter).cur.bytes, (iter).next_done = false)
-
-/* Access to the current character.  */
-#define mbui_cur(iter) (iter).cur
-#define mbui_cur_ptr(iter) (iter).cur.ptr
-
-/* Relocation.  */
-#define mbui_reloc(iter, ptrdiff) mbuiter_multi_reloc (&iter, ptrdiff)
-
-#endif /* _MBUITER_H */
diff --git a/gl/memchr.c b/gl/memchr.c
deleted file mode 100644
index d44ad6de..00000000
--- a/gl/memchr.c
+++ /dev/null
@@ -1,201 +0,0 @@
-/* Copyright (C) 1991, 1993, 1996, 1997, 1999, 2000, 2003, 2004, 2006 Free
-   Software Foundation, Inc.
-
-   Based on strlen implementation by Torbjorn Granlund (tege@sics.se),
-   with help from Dan Sahlin (dan@sics.se) and
-   commentary by Jim Blandy (jimb@ai.mit.edu);
-   adaptation to memchr suggested by Dick Karpinski (dick@cca.ucsf.edu),
-   and implemented by Roland McGrath (roland@ai.mit.edu).
-
-NOTE: The canonical source of this file is maintained with the GNU C Library.
-Bugs can be reported to bug-glibc@prep.ai.mit.edu.
-
-This program is free software; you can redistribute it and/or modify it
-under the terms of the GNU General Public License as published by the
-Free Software Foundation; either version 2, or (at your option) any
-later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software Foundation,
-Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
-
-#ifndef _LIBC
-# include <config.h>
-#endif
-
-#include <string.h>
-
-#include <stddef.h>
-
-#if defined _LIBC
-# include <memcopy.h>
-#else
-# define reg_char char
-#endif
-
-#include <limits.h>
-
-#if HAVE_BP_SYM_H || defined _LIBC
-# include <bp-sym.h>
-#else
-# define BP_SYM(sym) sym
-#endif
-
-#undef memchr
-#undef __memchr
-
-/* Search no more than N bytes of S for C.  */
-void *
-__memchr (void const *s, int c_in, size_t n)
-{
-  const unsigned char *char_ptr;
-  const unsigned long int *longword_ptr;
-  unsigned long int longword, magic_bits, charmask;
-  unsigned reg_char c;
-  int i;
-
-  c = (unsigned char) c_in;
-
-  /* Handle the first few characters by reading one character at a time.
-     Do this until CHAR_PTR is aligned on a longword boundary.  */
-  for (char_ptr = (const unsigned char *) s;
-       n > 0 && (size_t) char_ptr % sizeof longword != 0;
-       --n, ++char_ptr)
-    if (*char_ptr == c)
-      return (void *) char_ptr;
-
-  /* All these elucidatory comments refer to 4-byte longwords,
-     but the theory applies equally well to any size longwords.  */
-
-  longword_ptr = (const unsigned long int *) char_ptr;
-
-  /* Bits 31, 24, 16, and 8 of this number are zero.  Call these bits
-     the "holes."  Note that there is a hole just to the left of
-     each byte, with an extra at the end:
-
-     bits:  01111110 11111110 11111110 11111111
-     bytes: AAAAAAAA BBBBBBBB CCCCCCCC DDDDDDDD
-
-     The 1-bits make sure that carries propagate to the next 0-bit.
-     The 0-bits provide holes for carries to fall into.  */
-
-  /* Set MAGIC_BITS to be this pattern of 1 and 0 bits.
-     Set CHARMASK to be a longword, each of whose bytes is C.  */
-
-  magic_bits = 0xfefefefe;
-  charmask = c | (c << 8);
-  charmask |= charmask << 16;
-#if 0xffffffffU < ULONG_MAX
-  magic_bits |= magic_bits << 32;
-  charmask |= charmask << 32;
-  if (8 < sizeof longword)
-    for (i = 64; i < sizeof longword * 8; i *= 2)
-      {
-        magic_bits |= magic_bits << i;
-        charmask |= charmask << i;
-      }
-#endif
-  magic_bits = (ULONG_MAX >> 1) & (magic_bits | 1);
-
-  /* Instead of the traditional loop which tests each character,
-     we will test a longword at a time.  The tricky part is testing
-     if *any of the four* bytes in the longword in question are zero.  */
-  while (n >= sizeof longword)
-    {
-      /* We tentatively exit the loop if adding MAGIC_BITS to
-         LONGWORD fails to change any of the hole bits of LONGWORD.
-
-         1) Is this safe?  Will it catch all the zero bytes?
-         Suppose there is a byte with all zeros.  Any carry bits
-         propagating from its left will fall into the hole at its
-         least significant bit and stop.  Since there will be no
-         carry from its most significant bit, the LSB of the
-         byte to the left will be unchanged, and the zero will be
-         detected.
-
-         2) Is this worthwhile?  Will it ignore everything except
-         zero bytes?  Suppose every byte of LONGWORD has a bit set
-         somewhere.  There will be a carry into bit 8.  If bit 8
-         is set, this will carry into bit 16.  If bit 8 is clear,
-         one of bits 9-15 must be set, so there will be a carry
-         into bit 16.  Similarly, there will be a carry into bit
-         24.  If one of bits 24-30 is set, there will be a carry
-         into bit 31, so all of the hole bits will be changed.
-
-         The one misfire occurs when bits 24-30 are clear and bit
-         31 is set; in this case, the hole at bit 31 is not
-         changed.  If we had access to the processor carry flag,
-         we could close this loophole by putting the fourth hole
-         at bit 32!
-
-         So it ignores everything except 128's, when they're aligned
-         properly.
-
-         3) But wait!  Aren't we looking for C, not zero?
-         Good point.  So what we do is XOR LONGWORD with a longword,
-         each of whose bytes is C.  This turns each byte that is C
-         into a zero.  */
-
-      longword = *longword_ptr++ ^ charmask;
-
-      /* Add MAGIC_BITS to LONGWORD.  */
-      if ((((longword + magic_bits)
-
-            /* Set those bits that were unchanged by the addition.  */
-            ^ ~longword)
-
-           /* Look at only the hole bits.  If any of the hole bits
-              are unchanged, most likely one of the bytes was a
-              zero.  */
-           & ~magic_bits) != 0)
-        {
-          /* Which of the bytes was C?  If none of them were, it was
-             a misfire; continue the search.  */
-
-          const unsigned char *cp = (const unsigned char *) (longword_ptr - 1);
-
-          if (cp[0] == c)
-            return (void *) cp;
-          if (cp[1] == c)
-            return (void *) &cp[1];
-          if (cp[2] == c)
-            return (void *) &cp[2];
-          if (cp[3] == c)
-            return (void *) &cp[3];
-          if (4 < sizeof longword && cp[4] == c)
-            return (void *) &cp[4];
-          if (5 < sizeof longword && cp[5] == c)
-            return (void *) &cp[5];
-          if (6 < sizeof longword && cp[6] == c)
-            return (void *) &cp[6];
-          if (7 < sizeof longword && cp[7] == c)
-            return (void *) &cp[7];
-          if (8 < sizeof longword)
-            for (i = 8; i < sizeof longword; i++)
-              if (cp[i] == c)
-                return (void *) &cp[i];
-        }
-
-      n -= sizeof longword;
-    }
-
-  char_ptr = (const unsigned char *) longword_ptr;
-
-  while (n-- > 0)
-    {
-      if (*char_ptr == c)
-        return (void *) char_ptr;
-      else
-        ++char_ptr;
-    }
-
-  return 0;
-}
-#ifdef weak_alias
-weak_alias (__memchr, BP_SYM (memchr))
-#endif
diff --git a/gl/minmax.h b/gl/minmax.h
deleted file mode 100644
index 975ea76d..00000000
--- a/gl/minmax.h
+++ /dev/null
@@ -1,60 +0,0 @@
-/* MIN, MAX macros.
-   Copyright (C) 1995, 1998, 2001, 2003, 2005 Free Software Foundation, Inc.
-
-   This program is free software; you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software Foundation,
-   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
-
-#ifndef _MINMAX_H
-#define _MINMAX_H
-
-/* Note: MIN, MAX are also defined in <sys/param.h> on some systems
-   (glibc, IRIX, HP-UX, OSF/1).  Therefore you might get warnings about
-   MIN, MAX macro redefinitions on some systems; the workaround is to
-   #include this file as the last one among the #include list.  */
-
-/* Before we define the following symbols we get the <limits.h> file
-   since otherwise we get redefinitions on some systems if <limits.h> is
-   included after this file.  Likewise for <sys/param.h>.
-   If more than one of these system headers define MIN and MAX, pick just
-   one of the headers (because the definitions most likely are the same).  */
-#if HAVE_MINMAX_IN_LIMITS_H
-# include <limits.h>
-#elif HAVE_MINMAX_IN_SYS_PARAM_H
-# include <sys/param.h>
-#endif
-
-/* Note: MIN and MAX should be used with two arguments of the
-   same type.  They might not return the minimum and maximum of their two
-   arguments, if the arguments have different types or have unusual
-   floating-point values.  For example, on a typical host with 32-bit 'int',
-   64-bit 'long long', and 64-bit IEEE 754 'double' types:
-
-     MAX (-1, 2147483648) returns 4294967295.
-     MAX (9007199254740992.0, 9007199254740993) returns 9007199254740992.0.
-     MAX (NaN, 0.0) returns 0.0.
-     MAX (+0.0, -0.0) returns -0.0.
-
-   and in each case the answer is in some sense bogus.  */
-
-/* MAX(a,b) returns the maximum of A and B.  */
-#ifndef MAX
-# define MAX(a,b) ((a) > (b) ? (a) : (b))
-#endif
-
-/* MIN(a,b) returns the minimum of A and B.  */
-#ifndef MIN
-# define MIN(a,b) ((a) < (b) ? (a) : (b))
-#endif
-
-#endif /* _MINMAX_H */
diff --git a/gl/mountlist.c b/gl/mountlist.c
index bb01f91e..4c975c63 100644
--- a/gl/mountlist.c
+++ b/gl/mountlist.c
@@ -1,12 +1,12 @@
 /* mountlist.c -- return a list of mounted file systems
 
    Copyright (C) 1991, 1992, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
-   2004, 2005, 2006 Free Software Foundation, Inc.
+   2004, 2005, 2006, 2007 Free Software Foundation, Inc.
 
-   This program is free software; you can redistribute it and/or modify
+   This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -14,8 +14,7 @@
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software Foundation,
-   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
@@ -28,10 +27,6 @@
 
 #include "xalloc.h"
 
-#ifndef strstr
-char *strstr ();
-#endif
-
 #include <errno.h>
 
 #include <fcntl.h>
diff --git a/gl/mountlist.h b/gl/mountlist.h
index 7f5a6f77..e54bb49e 100644
--- a/gl/mountlist.h
+++ b/gl/mountlist.h
@@ -3,10 +3,10 @@
    Copyright (C) 1991, 1992, 1998, 2000, 2001, 2002, 2003, 2004, 2005
    Free Software Foundation, Inc.
 
-   This program is free software; you can redistribute it and/or modify
+   This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -14,8 +14,7 @@
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software Foundation,
-   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #ifndef MOUNTLIST_H_
 # define MOUNTLIST_H_
diff --git a/gl/strnlen1.h b/gl/netinet_in.in.h
index 7ce7d0c8..c45e53b6 100644
--- a/gl/strnlen1.h
+++ b/gl/netinet_in.in.h
@@ -1,9 +1,9 @@
-/* Find the length of STRING + 1, but scan at most MAXLEN bytes.
-   Copyright (C) 2005 Free Software Foundation, Inc.
+/* Substitute for <netinet/in.h>.
+   Copyright (C) 2007 Free Software Foundation, Inc.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
+   the Free Software Foundation; either version 3, or (at your option)
    any later version.
 
    This program is distributed in the hope that it will be useful,
@@ -15,26 +15,29 @@
    along with this program; if not, write to the Free Software Foundation,
    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
 
-#ifndef _STRNLEN1_H
-#define _STRNLEN1_H
+#ifndef _GL_NETINET_IN_H
 
-#include <stddef.h>
+#if @HAVE_NETINET_IN_H@
 
+/* On many platforms, <netinet/in.h> assumes prior inclusion of
+   <sys/types.h>.  */
+# include <sys/types.h>
+
+/* The include_next requires a split double-inclusion guard.  */
+# @INCLUDE_NEXT@ @NEXT_NETINET_IN_H@
 
-#ifdef __cplusplus
-extern "C" {
 #endif
 
+#ifndef _GL_NETINET_IN_H
+#define _GL_NETINET_IN_H
 
-/* Find the length of STRING + 1, but scan at most MAXLEN bytes.
-   If no '\0' terminator is found in that many characters, return MAXLEN.  */
-/* This is the same as strnlen (string, maxlen - 1) + 1.  */
-extern size_t strnlen1 (const char *string, size_t maxlen);
+#if !@HAVE_NETINET_IN_H@
 
+/* A platform that lacks <netinet/in.h>.  */
 
-#ifdef __cplusplus
-}
-#endif
+# include <sys/socket.h>
 
+#endif
 
-#endif /* _STRNLEN1_H */
+#endif /* _GL_NETINET_IN_H */
+#endif /* _GL_NETINET_IN_H */
diff --git a/gl/open-safer.c b/gl/open-safer.c
index 04a72eb7..ce493d5e 100644
--- a/gl/open-safer.c
+++ b/gl/open-safer.c
@@ -2,10 +2,10 @@
 
    Copyright (C) 2005, 2006 Free Software Foundation, Inc.
 
-   This program is free software; you can redistribute it and/or modify
+   This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -13,8 +13,7 @@
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software Foundation,
-   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 /* Written by Paul Eggert.  */
 
diff --git a/gl/pipe-safer.c b/gl/pipe-safer.c
index e4431b33..0fc68505 100644
--- a/gl/pipe-safer.c
+++ b/gl/pipe-safer.c
@@ -1,10 +1,10 @@
 /* Invoke pipe, but avoid some glitches.
    Copyright (C) 2005, 2006 Free Software Foundation, Inc.
 
-   This program is free software; you can redistribute it and/or modify
+   This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -12,8 +12,7 @@
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software Foundation,
-   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 /* Written by Jim Meyering.  */
 
diff --git a/gl/printf-args.c b/gl/printf-args.c
index 358801c9..871c720a 100644
--- a/gl/printf-args.c
+++ b/gl/printf-args.c
@@ -1,9 +1,9 @@
 /* Decomposed printf argument list.
-   Copyright (C) 1999, 2002-2003, 2005-2006 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002-2003, 2005-2007 Free Software Foundation, Inc.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
+   the Free Software Foundation; either version 3, or (at your option)
    any later version.
 
    This program is distributed in the hope that it will be useful,
@@ -15,16 +15,25 @@
    with this program; if not, write to the Free Software Foundation,
    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
 
-#include <config.h>
+/* This file can be parametrized with the following macros:
+     ENABLE_UNISTDIO    Set to 1 to enable the unistdio extensions.
+     PRINTF_FETCHARGS   Name of the function to be defined.
+     STATIC             Set to 'static' to declare the function static.  */
+
+#ifndef PRINTF_FETCHARGS
+# include <config.h>
+#endif
 
 /* Specification.  */
-#include "printf-args.h"
+#ifndef PRINTF_FETCHARGS
+# include "printf-args.h"
+#endif
 
 #ifdef STATIC
 STATIC
 #endif
 int
-printf_fetchargs (va_list args, arguments *a)
+PRINTF_FETCHARGS (va_list args, arguments *a)
 {
   size_t i;
   argument *ap;
@@ -56,7 +65,7 @@ printf_fetchargs (va_list args, arguments *a)
       case TYPE_ULONGINT:
         ap->a.a_ulongint = va_arg (args, unsigned long int);
         break;
-#ifdef HAVE_LONG_LONG_INT
+#if HAVE_LONG_LONG_INT
       case TYPE_LONGLONGINT:
         ap->a.a_longlongint = va_arg (args, long long int);
         break;
@@ -67,15 +76,13 @@ printf_fetchargs (va_list args, arguments *a)
       case TYPE_DOUBLE:
         ap->a.a_double = va_arg (args, double);
         break;
-#ifdef HAVE_LONG_DOUBLE
       case TYPE_LONGDOUBLE:
         ap->a.a_longdouble = va_arg (args, long double);
         break;
-#endif
       case TYPE_CHAR:
         ap->a.a_char = va_arg (args, int);
         break;
-#ifdef HAVE_WINT_T
+#if HAVE_WINT_T
       case TYPE_WIDE_CHAR:
         /* Although ISO C 99 7.24.1.(2) says that wint_t is "unchanged by
            default argument promotions", this is not the case in mingw32,
@@ -94,7 +101,7 @@ printf_fetchargs (va_list args, arguments *a)
         if (ap->a.a_string == NULL)
           ap->a.a_string = "(NULL)";
         break;
-#ifdef HAVE_WCHAR_T
+#if HAVE_WCHAR_T
       case TYPE_WIDE_STRING:
         ap->a.a_wide_string = va_arg (args, const wchar_t *);
         /* A null pointer is an invalid argument for "%ls", but in practice
@@ -128,11 +135,50 @@ printf_fetchargs (va_list args, arguments *a)
       case TYPE_COUNT_LONGINT_POINTER:
         ap->a.a_count_longint_pointer = va_arg (args, long int *);
         break;
-#ifdef HAVE_LONG_LONG_INT
+#if HAVE_LONG_LONG_INT
       case TYPE_COUNT_LONGLONGINT_POINTER:
         ap->a.a_count_longlongint_pointer = va_arg (args, long long int *);
         break;
 #endif
+#if ENABLE_UNISTDIO
+      /* The unistdio extensions.  */
+      case TYPE_U8_STRING:
+        ap->a.a_u8_string = va_arg (args, const uint8_t *);
+        /* A null pointer is an invalid argument for "%U", but in practice
+           it occurs quite frequently in printf statements that produce
+           debug output.  Use a fallback in this case.  */
+        if (ap->a.a_u8_string == NULL)
+          {
+            static const uint8_t u8_null_string[] =
+              { '(', 'N', 'U', 'L', 'L', ')', 0 };
+            ap->a.a_u8_string = u8_null_string;
+          }
+        break;
+      case TYPE_U16_STRING:
+        ap->a.a_u16_string = va_arg (args, const uint16_t *);
+        /* A null pointer is an invalid argument for "%lU", but in practice
+           it occurs quite frequently in printf statements that produce
+           debug output.  Use a fallback in this case.  */
+        if (ap->a.a_u16_string == NULL)
+          {
+            static const uint16_t u16_null_string[] =
+              { '(', 'N', 'U', 'L', 'L', ')', 0 };
+            ap->a.a_u16_string = u16_null_string;
+          }
+        break;
+      case TYPE_U32_STRING:
+        ap->a.a_u32_string = va_arg (args, const uint32_t *);
+        /* A null pointer is an invalid argument for "%llU", but in practice
+           it occurs quite frequently in printf statements that produce
+           debug output.  Use a fallback in this case.  */
+        if (ap->a.a_u32_string == NULL)
+          {
+            static const uint32_t u32_null_string[] =
+              { '(', 'N', 'U', 'L', 'L', ')', 0 };
+            ap->a.a_u32_string = u32_null_string;
+          }
+        break;
+#endif
       default:
         /* Unknown type.  */
         return -1;
diff --git a/gl/printf-args.h b/gl/printf-args.h
index 5759da0e..67cb990c 100644
--- a/gl/printf-args.h
+++ b/gl/printf-args.h
@@ -1,9 +1,9 @@
 /* Decomposed printf argument list.
-   Copyright (C) 1999, 2002-2003, 2006 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002-2003, 2006-2007 Free Software Foundation, Inc.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
+   the Free Software Foundation; either version 3, or (at your option)
    any later version.
 
    This program is distributed in the hope that it will be useful,
@@ -18,16 +18,26 @@
 #ifndef _PRINTF_ARGS_H
 #define _PRINTF_ARGS_H
 
+/* This file can be parametrized with the following macros:
+     ENABLE_UNISTDIO    Set to 1 to enable the unistdio extensions.
+     PRINTF_FETCHARGS   Name of the function to be declared.
+     STATIC             Set to 'static' to declare the function static.  */
+
+/* Default parameters.  */
+#ifndef PRINTF_FETCHARGS
+# define PRINTF_FETCHARGS printf_fetchargs
+#endif
+
 /* Get size_t.  */
 #include <stddef.h>
 
 /* Get wchar_t.  */
-#ifdef HAVE_WCHAR_T
+#if HAVE_WCHAR_T
 # include <stddef.h>
 #endif
 
 /* Get wint_t.  */
-#ifdef HAVE_WINT_T
+#if HAVE_WINT_T
 # include <wchar.h>
 #endif
 
@@ -47,20 +57,18 @@ typedef enum
   TYPE_UINT,
   TYPE_LONGINT,
   TYPE_ULONGINT,
-#ifdef HAVE_LONG_LONG_INT
+#if HAVE_LONG_LONG_INT
   TYPE_LONGLONGINT,
   TYPE_ULONGLONGINT,
 #endif
   TYPE_DOUBLE,
-#ifdef HAVE_LONG_DOUBLE
   TYPE_LONGDOUBLE,
-#endif
   TYPE_CHAR,
-#ifdef HAVE_WINT_T
+#if HAVE_WINT_T
   TYPE_WIDE_CHAR,
 #endif
   TYPE_STRING,
-#ifdef HAVE_WCHAR_T
+#if HAVE_WCHAR_T
   TYPE_WIDE_STRING,
 #endif
   TYPE_POINTER,
@@ -68,9 +76,15 @@ typedef enum
   TYPE_COUNT_SHORT_POINTER,
   TYPE_COUNT_INT_POINTER,
   TYPE_COUNT_LONGINT_POINTER
-#ifdef HAVE_LONG_LONG_INT
+#if HAVE_LONG_LONG_INT
 , TYPE_COUNT_LONGLONGINT_POINTER
 #endif
+#if ENABLE_UNISTDIO
+  /* The unistdio extensions.  */
+, TYPE_U8_STRING
+, TYPE_U16_STRING
+, TYPE_U32_STRING
+#endif
 } arg_type;
 
 /* Polymorphic argument */
@@ -87,21 +101,19 @@ typedef struct
     unsigned int                a_uint;
     long int                    a_longint;
     unsigned long int           a_ulongint;
-#ifdef HAVE_LONG_LONG_INT
+#if HAVE_LONG_LONG_INT
     long long int               a_longlongint;
     unsigned long long int      a_ulonglongint;
 #endif
     float                       a_float;
     double                      a_double;
-#ifdef HAVE_LONG_DOUBLE
     long double                 a_longdouble;
-#endif
     int                         a_char;
-#ifdef HAVE_WINT_T
+#if HAVE_WINT_T
     wint_t                      a_wide_char;
 #endif
     const char*                 a_string;
-#ifdef HAVE_WCHAR_T
+#if HAVE_WCHAR_T
     const wchar_t*              a_wide_string;
 #endif
     void*                       a_pointer;
@@ -109,9 +121,15 @@ typedef struct
     short *                     a_count_short_pointer;
     int *                       a_count_int_pointer;
     long int *                  a_count_longint_pointer;
-#ifdef HAVE_LONG_LONG_INT
+#if HAVE_LONG_LONG_INT
     long long int *             a_count_longlongint_pointer;
 #endif
+#if ENABLE_UNISTDIO
+    /* The unistdio extensions.  */
+    const uint8_t *             a_u8_string;
+    const uint16_t *            a_u16_string;
+    const uint32_t *            a_u32_string;
+#endif
   }
   a;
 }
@@ -131,6 +149,6 @@ STATIC
 #else
 extern
 #endif
-int printf_fetchargs (va_list args, arguments *a);
+int PRINTF_FETCHARGS (va_list args, arguments *a);
 
 #endif /* _PRINTF_ARGS_H */
diff --git a/gl/printf-parse.c b/gl/printf-parse.c
index 9a86f773..28b9bd41 100644
--- a/gl/printf-parse.c
+++ b/gl/printf-parse.c
@@ -1,9 +1,9 @@
 /* Formatted output to strings.
-   Copyright (C) 1999-2000, 2002-2003, 2006 Free Software Foundation, Inc.
+   Copyright (C) 1999-2000, 2002-2003, 2006-2008 Free Software Foundation, Inc.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
+   the Free Software Foundation; either version 3, or (at your option)
    any later version.
 
    This program is distributed in the hope that it will be useful,
@@ -15,42 +15,63 @@
    with this program; if not, write to the Free Software Foundation,
    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
 
-#include <config.h>
+/* This file can be parametrized with the following macros:
+     CHAR_T             The element type of the format string.
+     CHAR_T_ONLY_ASCII  Set to 1 to enable verification that all characters
+                        in the format string are ASCII.
+     DIRECTIVE          Structure denoting a format directive.
+                        Depends on CHAR_T.
+     DIRECTIVES         Structure denoting the set of format directives of a
+                        format string.  Depends on CHAR_T.
+     PRINTF_PARSE       Function that parses a format string.
+                        Depends on CHAR_T.
+     STATIC             Set to 'static' to declare the function static.
+     ENABLE_UNISTDIO    Set to 1 to enable the unistdio extensions.  */
+
+#ifndef PRINTF_PARSE
+# include <config.h>
+#endif
 
 /* Specification.  */
-#if WIDE_CHAR_VERSION
-# include "wprintf-parse.h"
-#else
+#ifndef PRINTF_PARSE
 # include "printf-parse.h"
 #endif
 
+/* Default parameters.  */
+#ifndef PRINTF_PARSE
+# define PRINTF_PARSE printf_parse
+# define CHAR_T char
+# define DIRECTIVE char_directive
+# define DIRECTIVES char_directives
+#endif
+
 /* Get size_t, NULL.  */
 #include <stddef.h>
 
 /* Get intmax_t.  */
-#if HAVE_STDINT_H_WITH_UINTMAX
+#if defined IN_LIBINTL || defined IN_LIBASPRINTF
+# if HAVE_STDINT_H_WITH_UINTMAX
+#  include <stdint.h>
+# endif
+# if HAVE_INTTYPES_H_WITH_UINTMAX
+#  include <inttypes.h>
+# endif
+#else
 # include <stdint.h>
 #endif
-#if HAVE_INTTYPES_H_WITH_UINTMAX
-# include <inttypes.h>
-#endif
 
 /* malloc(), realloc(), free().  */
 #include <stdlib.h>
 
+/* errno.  */
+#include <errno.h>
+
 /* Checked size_t computations.  */
 #include "xsize.h"
 
-#if WIDE_CHAR_VERSION
-# define PRINTF_PARSE wprintf_parse
-# define CHAR_T wchar_t
-# define DIRECTIVE wchar_t_directive
-# define DIRECTIVES wchar_t_directives
-#else
-# define PRINTF_PARSE printf_parse
-# define CHAR_T char
-# define DIRECTIVE char_directive
-# define DIRECTIVES char_directives
+#if CHAR_T_ONLY_ASCII
+/* c_isascii().  */
+# include "c-ctype.h"
 #endif
 
 #ifdef STATIC
@@ -71,7 +92,7 @@ PRINTF_PARSE (const CHAR_T *format, DIRECTIVES *d, arguments *a)
   d->dir = (DIRECTIVE *) malloc (d_allocated * sizeof (DIRECTIVE));
   if (d->dir == NULL)
     /* Out of memory.  */
-    return -1;
+    goto out_of_memory_1;
 
   a->count = 0;
   a_allocated = 0;
@@ -91,13 +112,13 @@ PRINTF_PARSE (const CHAR_T *format, DIRECTIVES *d, arguments *a)
         memory_size = xtimes (a_allocated, sizeof (argument));          \
         if (size_overflow_p (memory_size))                              \
           /* Overflow, would lead to out of memory.  */                 \
-          goto error;                                                   \
+          goto out_of_memory;                                           \
         memory = (argument *) (a->arg                                   \
                                ? realloc (a->arg, memory_size)          \
                                : malloc (memory_size));                 \
         if (memory == NULL)                                             \
           /* Out of memory.  */                                         \
-          goto error;                                                   \
+          goto out_of_memory;                                           \
         a->arg = memory;                                                \
       }                                                                 \
     while (a->count <= n)                                               \
@@ -115,7 +136,7 @@ PRINTF_PARSE (const CHAR_T *format, DIRECTIVES *d, arguments *a)
       if (c == '%')
         {
           size_t arg_index = ARG_NONE;
-          DIRECTIVE *dp = &d->dir[d->count];/* pointer to next directive */
+          DIRECTIVE *dp = &d->dir[d->count]; /* pointer to next directive */
 
           /* Initialize the next directive.  */
           dp->dir_start = cp - 1;
@@ -326,7 +347,6 @@ PRINTF_PARSE (const CHAR_T *format, DIRECTIVES *d, arguments *a)
                       flags += 8;
                       cp++;
                     }
-#ifdef HAVE_INTMAX_T
                   else if (*cp == 'j')
                     {
                       if (sizeof (intmax_t) > sizeof (long))
@@ -341,7 +361,6 @@ PRINTF_PARSE (const CHAR_T *format, DIRECTIVES *d, arguments *a)
                         }
                       cp++;
                     }
-#endif
                   else if (*cp == 'z' || *cp == 'Z')
                     {
                       /* 'z' is standardized in ISO C 99, but glibc uses 'Z'
@@ -373,6 +392,44 @@ PRINTF_PARSE (const CHAR_T *format, DIRECTIVES *d, arguments *a)
                         }
                       cp++;
                     }
+#if defined __APPLE__ && defined __MACH__
+                  /* On MacOS X 10.3, PRIdMAX is defined as "qd".
+                     We cannot change it to "lld" because PRIdMAX must also
+                     be understood by the system's printf routines.  */
+                  else if (*cp == 'q')
+                    {
+                      if (64 / 8 > sizeof (long))
+                        {
+                          /* int64_t = long long */
+                          flags += 16;
+                        }
+                      else
+                        {
+                          /* int64_t = long */
+                          flags += 8;
+                        }
+                      cp++;
+                    }
+#endif
+#if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
+                  /* On native Win32, PRIdMAX is defined as "I64d".
+                     We cannot change it to "lld" because PRIdMAX must also
+                     be understood by the system's printf routines.  */
+                  else if (*cp == 'I' && cp[1] == '6' && cp[2] == '4')
+                    {
+                      if (64 / 8 > sizeof (long))
+                        {
+                          /* __int64 = long long */
+                          flags += 16;
+                        }
+                      else
+                        {
+                          /* __int64 = long */
+                          flags += 8;
+                        }
+                      cp += 3;
+                    }
+#endif
                   else
                     break;
                 }
@@ -382,7 +439,7 @@ PRINTF_PARSE (const CHAR_T *format, DIRECTIVES *d, arguments *a)
               switch (c)
                 {
                 case 'd': case 'i':
-#ifdef HAVE_LONG_LONG_INT
+#if HAVE_LONG_LONG_INT
                   /* If 'long long' exists and is larger than 'long':  */
                   if (flags >= 16 || (flags & 4))
                     type = TYPE_LONGLONGINT;
@@ -400,7 +457,7 @@ PRINTF_PARSE (const CHAR_T *format, DIRECTIVES *d, arguments *a)
                     type = TYPE_INT;
                   break;
                 case 'o': case 'u': case 'x': case 'X':
-#ifdef HAVE_LONG_LONG_INT
+#if HAVE_LONG_LONG_INT
                   /* If 'long long' exists and is larger than 'long':  */
                   if (flags >= 16 || (flags & 4))
                     type = TYPE_ULONGLONGINT;
@@ -419,16 +476,14 @@ PRINTF_PARSE (const CHAR_T *format, DIRECTIVES *d, arguments *a)
                   break;
                 case 'f': case 'F': case 'e': case 'E': case 'g': case 'G':
                 case 'a': case 'A':
-#ifdef HAVE_LONG_DOUBLE
                   if (flags >= 16 || (flags & 4))
                     type = TYPE_LONGDOUBLE;
                   else
-#endif
-                  type = TYPE_DOUBLE;
+                    type = TYPE_DOUBLE;
                   break;
                 case 'c':
                   if (flags >= 8)
-#ifdef HAVE_WINT_T
+#if HAVE_WINT_T
                     type = TYPE_WIDE_CHAR;
 #else
                     goto error;
@@ -436,7 +491,7 @@ PRINTF_PARSE (const CHAR_T *format, DIRECTIVES *d, arguments *a)
                   else
                     type = TYPE_CHAR;
                   break;
-#ifdef HAVE_WINT_T
+#if HAVE_WINT_T
                 case 'C':
                   type = TYPE_WIDE_CHAR;
                   c = 'c';
@@ -444,7 +499,7 @@ PRINTF_PARSE (const CHAR_T *format, DIRECTIVES *d, arguments *a)
 #endif
                 case 's':
                   if (flags >= 8)
-#ifdef HAVE_WCHAR_T
+#if HAVE_WCHAR_T
                     type = TYPE_WIDE_STRING;
 #else
                     goto error;
@@ -452,7 +507,7 @@ PRINTF_PARSE (const CHAR_T *format, DIRECTIVES *d, arguments *a)
                   else
                     type = TYPE_STRING;
                   break;
-#ifdef HAVE_WCHAR_T
+#if HAVE_WCHAR_T
                 case 'S':
                   type = TYPE_WIDE_STRING;
                   c = 's';
@@ -462,7 +517,7 @@ PRINTF_PARSE (const CHAR_T *format, DIRECTIVES *d, arguments *a)
                   type = TYPE_POINTER;
                   break;
                 case 'n':
-#ifdef HAVE_LONG_LONG_INT
+#if HAVE_LONG_LONG_INT
                   /* If 'long long' exists and is larger than 'long':  */
                   if (flags >= 16 || (flags & 4))
                     type = TYPE_COUNT_LONGLONGINT_POINTER;
@@ -479,6 +534,17 @@ PRINTF_PARSE (const CHAR_T *format, DIRECTIVES *d, arguments *a)
                   else
                     type = TYPE_COUNT_INT_POINTER;
                   break;
+#if ENABLE_UNISTDIO
+                /* The unistdio extensions.  */
+                case 'U':
+                  if (flags >= 16)
+                    type = TYPE_U32_STRING;
+                  else if (flags >= 8)
+                    type = TYPE_U16_STRING;
+                  else
+                    type = TYPE_U8_STRING;
+                  break;
+#endif
                 case '%':
                   type = TYPE_NONE;
                   break;
@@ -514,14 +580,21 @@ PRINTF_PARSE (const CHAR_T *format, DIRECTIVES *d, arguments *a)
               memory_size = xtimes (d_allocated, sizeof (DIRECTIVE));
               if (size_overflow_p (memory_size))
                 /* Overflow, would lead to out of memory.  */
-                goto error;
+                goto out_of_memory;
               memory = (DIRECTIVE *) realloc (d->dir, memory_size);
               if (memory == NULL)
                 /* Out of memory.  */
-                goto error;
+                goto out_of_memory;
               d->dir = memory;
             }
         }
+#if CHAR_T_ONLY_ASCII
+      else if (!c_isascii (c))
+        {
+          /* Non-ASCII character.  Not supported.  */
+          goto error;
+        }
+#endif
     }
   d->dir[d->count].dir_start = cp;
 
@@ -534,10 +607,21 @@ error:
     free (a->arg);
   if (d->dir)
     free (d->dir);
+  errno = EINVAL;
+  return -1;
+
+out_of_memory:
+  if (a->arg)
+    free (a->arg);
+  if (d->dir)
+    free (d->dir);
+out_of_memory_1:
+  errno = ENOMEM;
   return -1;
 }
 
+#undef PRINTF_PARSE
 #undef DIRECTIVES
 #undef DIRECTIVE
+#undef CHAR_T_ONLY_ASCII
 #undef CHAR_T
-#undef PRINTF_PARSE
diff --git a/gl/printf-parse.h b/gl/printf-parse.h
index 82a0d37c..e5d68d75 100644
--- a/gl/printf-parse.h
+++ b/gl/printf-parse.h
@@ -1,9 +1,9 @@
 /* Parse printf format string.
-   Copyright (C) 1999, 2002-2003 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002-2003, 2005, 2007 Free Software Foundation, Inc.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
+   the Free Software Foundation; either version 3, or (at your option)
    any later version.
 
    This program is distributed in the hope that it will be useful,
@@ -18,6 +18,10 @@
 #ifndef _PRINTF_PARSE_H
 #define _PRINTF_PARSE_H
 
+/* This file can be parametrized with the following macros:
+     ENABLE_UNISTDIO    Set to 1 to enable the unistdio extensions.
+     STATIC             Set to 'static' to declare the function static.  */
+
 #include "printf-args.h"
 
 
@@ -32,6 +36,9 @@
 /* arg_index value indicating that no argument is consumed.  */
 #define ARG_NONE        (~(size_t)0)
 
+/* xxx_directive: A parsed directive.
+   xxx_directives: A parsed format string.  */
+
 /* A parsed directive.  */
 typedef struct
 {
@@ -44,7 +51,7 @@ typedef struct
   const char* precision_start;
   const char* precision_end;
   size_t precision_arg_index;
-  char conversion; /* d i o u x X f e E g G c s p n U % but not C S */
+  char conversion; /* d i o u x X f F e E g G a A c s p n U % but not C S */
   size_t arg_index;
 }
 char_directive;
@@ -59,16 +66,114 @@ typedef struct
 }
 char_directives;
 
+#if ENABLE_UNISTDIO
+
+/* A parsed directive.  */
+typedef struct
+{
+  const uint8_t* dir_start;
+  const uint8_t* dir_end;
+  int flags;
+  const uint8_t* width_start;
+  const uint8_t* width_end;
+  size_t width_arg_index;
+  const uint8_t* precision_start;
+  const uint8_t* precision_end;
+  size_t precision_arg_index;
+  uint8_t conversion; /* d i o u x X f F e E g G a A c s p n U % but not C S */
+  size_t arg_index;
+}
+u8_directive;
+
+/* A parsed format string.  */
+typedef struct
+{
+  size_t count;
+  u8_directive *dir;
+  size_t max_width_length;
+  size_t max_precision_length;
+}
+u8_directives;
+
+/* A parsed directive.  */
+typedef struct
+{
+  const uint16_t* dir_start;
+  const uint16_t* dir_end;
+  int flags;
+  const uint16_t* width_start;
+  const uint16_t* width_end;
+  size_t width_arg_index;
+  const uint16_t* precision_start;
+  const uint16_t* precision_end;
+  size_t precision_arg_index;
+  uint16_t conversion; /* d i o u x X f F e E g G a A c s p n U % but not C S */
+  size_t arg_index;
+}
+u16_directive;
+
+/* A parsed format string.  */
+typedef struct
+{
+  size_t count;
+  u16_directive *dir;
+  size_t max_width_length;
+  size_t max_precision_length;
+}
+u16_directives;
+
+/* A parsed directive.  */
+typedef struct
+{
+  const uint32_t* dir_start;
+  const uint32_t* dir_end;
+  int flags;
+  const uint32_t* width_start;
+  const uint32_t* width_end;
+  size_t width_arg_index;
+  const uint32_t* precision_start;
+  const uint32_t* precision_end;
+  size_t precision_arg_index;
+  uint32_t conversion; /* d i o u x X f F e E g G a A c s p n U % but not C S */
+  size_t arg_index;
+}
+u32_directive;
+
+/* A parsed format string.  */
+typedef struct
+{
+  size_t count;
+  u32_directive *dir;
+  size_t max_width_length;
+  size_t max_precision_length;
+}
+u32_directives;
+
+#endif
+
 
 /* Parses the format string.  Fills in the number N of directives, and fills
    in directives[0], ..., directives[N-1], and sets directives[N].dir_start
    to the end of the format string.  Also fills in the arg_type fields of the
    arguments and the needed count of arguments.  */
-#ifdef STATIC
-STATIC
+#if ENABLE_UNISTDIO
+extern int
+       ulc_printf_parse (const char *format, char_directives *d, arguments *a);
+extern int
+       u8_printf_parse (const uint8_t *format, u8_directives *d, arguments *a);
+extern int
+       u16_printf_parse (const uint16_t *format, u16_directives *d,
+                         arguments *a);
+extern int
+       u32_printf_parse (const uint32_t *format, u32_directives *d,
+                         arguments *a);
 #else
+# ifdef STATIC
+STATIC
+# else
 extern
-#endif
+# endif
 int printf_parse (const char *format, char_directives *d, arguments *a);
+#endif
 
 #endif /* _PRINTF_PARSE_H */
diff --git a/gl/ref-add.sin b/gl/ref-add.sin
new file mode 100644
index 00000000..222d7529
--- /dev/null
+++ b/gl/ref-add.sin
@@ -0,0 +1,30 @@
+# Add this package to a list of references stored in a text file.
+#
+#   Copyright (C) 2000 Free Software Foundation, Inc.
+#
+#   This program is free software; you can redistribute it and/or modify
+#   it under the terms of the GNU General Public License as published by
+#   the Free Software Foundation; either version 3, or (at your option)
+#   any later version.
+#
+#   This program is distributed in the hope that it will be useful,
+#   but WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#   GNU General Public License for more details.
+#
+#   You should have received a copy of the GNU General Public License along
+#   with this program; if not, write to the Free Software Foundation,
+#   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# Written by Bruno Haible <haible@clisp.cons.org>.
+#
+/^# Packages using this file: / {
+  s/# Packages using this file://
+  ta
+  :a
+  s/ @PACKAGE@ / @PACKAGE@ /
+  tb
+  s/ $/ @PACKAGE@ /
+  :b
+  s/^/# Packages using this file:/
+}
diff --git a/gl/ref-del.sin b/gl/ref-del.sin
new file mode 100644
index 00000000..1bf073e1
--- /dev/null
+++ b/gl/ref-del.sin
@@ -0,0 +1,25 @@
+# Remove this package from a list of references stored in a text file.
+#
+#   Copyright (C) 2000 Free Software Foundation, Inc.
+#
+#   This program is free software; you can redistribute it and/or modify
+#   it under the terms of the GNU General Public License as published by
+#   the Free Software Foundation; either version 3, or (at your option)
+#   any later version.
+#
+#   This program is distributed in the hope that it will be useful,
+#   but WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#   GNU General Public License for more details.
+#
+#   You should have received a copy of the GNU General Public License along
+#   with this program; if not, write to the Free Software Foundation,
+#   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# Written by Bruno Haible <haible@clisp.cons.org>.
+#
+/^# Packages using this file: / {
+  s/# Packages using this file://
+  s/ @PACKAGE@ / /
+  s/^/# Packages using this file:/
+}
diff --git a/gl/regcomp.c b/gl/regcomp.c
index 8df6bb80..8827e03c 100644
--- a/gl/regcomp.c
+++ b/gl/regcomp.c
@@ -1,11 +1,11 @@
 /* Extended regular expression matching and search library.
-   Copyright (C) 2002,2003,2004,2005,2006 Free Software Foundation, Inc.
+   Copyright (C) 2002,2003,2004,2005,2006,2007 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
+   the Free Software Foundation; either version 3, or (at your option)
    any later version.
 
    This program is distributed in the hope that it will be useful,
@@ -451,8 +451,8 @@ re_compile_fastmap_iter (regex_t *bufp, const re_dfastate_t *init_state,
 
 int
 regcomp (preg, pattern, cflags)
-    regex_t *__restrict preg;
-    const char *__restrict pattern;
+    regex_t *_Restrict_ preg;
+    const char *_Restrict_ pattern;
     int cflags;
 {
   reg_errcode_t ret;
@@ -515,13 +515,13 @@ weak_alias (__regcomp, regcomp)
 size_t
 regerror (errcode, preg, errbuf, errbuf_size)
     int errcode;
-    const regex_t *__restrict preg;
-    char *__restrict errbuf;
+    const regex_t *_Restrict_ preg;
+    char *_Restrict_ errbuf;
     size_t errbuf_size;
 #else /* size_t might promote */
 size_t
-regerror (int errcode, const regex_t *__restrict preg,
-          char *__restrict errbuf, size_t errbuf_size)
+regerror (int errcode, const regex_t *_Restrict_ preg,
+          char *_Restrict_ errbuf, size_t errbuf_size)
 #endif
 {
   const char *msg;
@@ -542,17 +542,13 @@ regerror (int errcode, const regex_t *__restrict preg,
 
   if (BE (errbuf_size != 0, 1))
     {
+      size_t cpy_size = msg_size;
       if (BE (msg_size > errbuf_size, 0))
         {
-#if defined HAVE_MEMPCPY || defined _LIBC
-          *((char *) __mempcpy (errbuf, msg, errbuf_size - 1)) = '\0';
-#else
-          memcpy (errbuf, msg, errbuf_size - 1);
-          errbuf[errbuf_size - 1] = 0;
-#endif
+          cpy_size = errbuf_size - 1;
+          errbuf[cpy_size] = '\0';
         }
-      else
-        memcpy (errbuf, msg, msg_size);
+      memcpy (errbuf, msg, cpy_size);
     }
 
   return msg_size;
@@ -833,9 +829,6 @@ static reg_errcode_t
 init_dfa (re_dfa_t *dfa, size_t pat_len)
 {
   __re_size_t table_size;
-#ifndef _LIBC
-  char *codeset_name;
-#endif
 #ifdef RE_ENABLE_I18N
   size_t max_i18n_object_size = MAX (sizeof (wchar_t), sizeof (wctype_t));
 #else
@@ -879,22 +872,7 @@ init_dfa (re_dfa_t *dfa, size_t pat_len)
   dfa->map_notascii = (_NL_CURRENT_WORD (LC_CTYPE, _NL_CTYPE_MAP_TO_NONASCII)
                        != 0);
 #else
-# ifdef HAVE_LANGINFO_CODESET
-  codeset_name = nl_langinfo (CODESET);
-# else
-  codeset_name = getenv ("LC_ALL");
-  if (codeset_name == NULL || codeset_name[0] == '\0')
-    codeset_name = getenv ("LC_CTYPE");
-  if (codeset_name == NULL || codeset_name[0] == '\0')
-    codeset_name = getenv ("LANG");
-  if (codeset_name == NULL)
-    codeset_name = "";
-  else if (strchr (codeset_name, '.') !=  NULL)
-    codeset_name = strchr (codeset_name, '.') + 1;
-# endif
-
-  if (strcasecmp (codeset_name, "UTF-8") == 0
-      || strcasecmp (codeset_name, "UTF8") == 0)
+  if (strcmp (locale_charset (), "UTF-8") == 0)
     dfa->is_utf8 = 1;
 
   /* We check exhaustively in the loop below if this charset is a
@@ -1071,7 +1049,7 @@ optimize_utf8 (re_dfa_t *dfa)
           mb_chars = true;
         break;
       case ANCHOR:
-        switch (dfa->nodes[node].opr.idx)
+        switch (dfa->nodes[node].opr.ctx_type)
           {
           case LINE_FIRST:
           case LINE_LAST:
@@ -3074,7 +3052,7 @@ parse_bracket_exp (re_string_t *regexp, re_dfa_t *dfa, re_token_t *token,
 #endif /* not RE_ENABLE_I18N */
       non_match = true;
       if (syntax & RE_HAT_LISTS_NOT_NEWLINE)
-        bitset_set (sbcset, '\0');
+        bitset_set (sbcset, '\n');
       re_string_skip_bytes (regexp, token_len); /* Skip a token.  */
       token_len = peek_token_bracket (token, regexp, syntax);
       if (BE (token->type == END_OF_RE, 0))
@@ -3605,10 +3583,6 @@ build_charclass_op (re_dfa_t *dfa, RE_TRANSLATE_TYPE trans,
   if (non_match)
     {
 #ifdef RE_ENABLE_I18N
-      /*
-      if (syntax & RE_HAT_LISTS_NOT_NEWLINE)
-        bitset_set(cset->sbcset, '\0');
-      */
       mbcset->non_match = 1;
 #endif /* not RE_ENABLE_I18N */
     }
diff --git a/gl/regex.c b/gl/regex.c
index d4eb726b..ee36378a 100644
--- a/gl/regex.c
+++ b/gl/regex.c
@@ -5,7 +5,7 @@
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
+   the Free Software Foundation; either version 3, or (at your option)
    any later version.
 
    This program is distributed in the hope that it will be useful,
diff --git a/gl/regex.h b/gl/regex.h
index 6885ebdf..a5312832 100644
--- a/gl/regex.h
+++ b/gl/regex.h
@@ -6,7 +6,7 @@
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
+   the Free Software Foundation; either version 3, or (at your option)
    any later version.
 
    This program is distributed in the hope that it will be useful,
@@ -625,41 +625,45 @@ extern int re_exec (const char *);
 #endif
 
 /* GCC 2.95 and later have "__restrict"; C99 compilers have
-   "restrict", and "configure" may have defined "restrict".  */
-#ifndef __restrict
-# if ! (2 < __GNUC__ || (2 == __GNUC__ && 95 <= __GNUC_MINOR__))
-#  if defined restrict || 199901L <= __STDC_VERSION__
-#   define __restrict restrict
-#  else
-#   define __restrict
-#  endif
+   "restrict", and "configure" may have defined "restrict".
+   Other compilers use __restrict, __restrict__, and _Restrict, and
+   'configure' might #define 'restrict' to those words, so pick a
+   different name.  */
+#ifndef _Restrict_
+# if 199901L <= __STDC_VERSION__
+#  define _Restrict_ restrict
+# elif 2 < __GNUC__ || (2 == __GNUC__ && 95 <= __GNUC_MINOR__)
+#  define _Restrict_ __restrict
+# else
+#  define _Restrict_
 # endif
 #endif
 /* gcc 3.1 and up support the [restrict] syntax.  Don't trust
    sys/cdefs.h's definition of __restrict_arr, though, as it
    mishandles gcc -ansi -pedantic.  */
-#undef __restrict_arr
-#if ((199901L <= __STDC_VERSION__                                       \
-      || ((3 < __GNUC__ || (3 == __GNUC__ && 1 <= __GNUC_MINOR__))      \
-          && !__STRICT_ANSI__))                                         \
-     && !defined __GNUG__)
-# define __restrict_arr __restrict
-#else
-# define __restrict_arr
+#ifndef _Restrict_arr_
+# if ((199901L <= __STDC_VERSION__                                      \
+       || ((3 < __GNUC__ || (3 == __GNUC__ && 1 <= __GNUC_MINOR__))     \
+           && !__STRICT_ANSI__))                                        \
+      && !defined __GNUG__)
+#  define _Restrict_arr_ _Restrict_
+# else
+#  define _Restrict_arr_
+# endif
 #endif
 
 /* POSIX compatibility.  */
-extern int regcomp (regex_t *__restrict __preg,
-                    const char *__restrict __pattern,
+extern int regcomp (regex_t *_Restrict_ __preg,
+                    const char *_Restrict_ __pattern,
                     int __cflags);
 
-extern int regexec (const regex_t *__restrict __preg,
-                    const char *__restrict __string, size_t __nmatch,
-                    regmatch_t __pmatch[__restrict_arr],
+extern int regexec (const regex_t *_Restrict_ __preg,
+                    const char *_Restrict_ __string, size_t __nmatch,
+                    regmatch_t __pmatch[_Restrict_arr_],
                     int __eflags);
 
-extern size_t regerror (int __errcode, const regex_t *__restrict __preg,
-                        char *__restrict __errbuf, size_t __errbuf_size);
+extern size_t regerror (int __errcode, const regex_t *_Restrict_ __preg,
+                        char *_Restrict_ __errbuf, size_t __errbuf_size);
 
 extern void regfree (regex_t *__preg);
 
diff --git a/gl/regex_internal.c b/gl/regex_internal.c
index 78e16f33..cf3bf1bb 100644
--- a/gl/regex_internal.c
+++ b/gl/regex_internal.c
@@ -1,11 +1,12 @@
 /* Extended regular expression matching and search library.
-   Copyright (C) 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007 Free Software
+   Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
+   the Free Software Foundation; either version 3, or (at your option)
    any later version.
 
    This program is distributed in the hope that it will be useful,
@@ -706,7 +707,7 @@ re_string_reconstruct (re_string_t *pstr, Idx idx, int eflags)
 
               if (pstr->is_utf8)
                 {
-                  const unsigned char *raw, *p, *q, *end;
+                  const unsigned char *raw, *p, *end;
 
                   /* Special case UTF-8.  Multi-byte chars start with any
                      byte other than 0x80 - 0xbf.  */
@@ -735,13 +736,11 @@ re_string_reconstruct (re_string_t *pstr, Idx idx, int eflags)
                           unsigned char buf[6];
                           size_t mbclen;
 
-                          q = p;
                           if (BE (pstr->trans != NULL, 0))
                             {
                               int i = mlen < 6 ? mlen : 6;
                               while (--i >= 0)
                                 buf[i] = pstr->trans[p[i]];
-                              q = buf;
                             }
                           /* XXX Don't use mbrtowc, we know which conversion
                              to use (UTF-8 -> UCS4).  */
diff --git a/gl/regex_internal.h b/gl/regex_internal.h
index b0f7e657..f96291d0 100644
--- a/gl/regex_internal.h
+++ b/gl/regex_internal.h
@@ -5,7 +5,7 @@
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
+   the Free Software Foundation; either version 3, or (at your option)
    any later version.
 
    This program is distributed in the hope that it will be useful,
@@ -27,12 +27,10 @@
 #include <stdlib.h>
 #include <string.h>
 
-#ifndef _LIBC
-# include "strcase.h"
-#endif
-
-#if defined HAVE_LANGINFO_H || defined HAVE_LANGINFO_CODESET || defined _LIBC
+#ifdef _LIBC
 # include <langinfo.h>
+#else
+# include "localcharset.h"
 #endif
 #if defined HAVE_LOCALE_H || defined _LIBC
 # include <locale.h>
@@ -50,7 +48,7 @@
 #endif
 
 /* In case that the system doesn't have isblank().  */
-#if !defined _LIBC && !HAVE_DECL_ISBLANK && !defined isblank
+#if !defined _LIBC && ! (defined isblank || (HAVE_ISBLANK && HAVE_DECL_ISBLANK))
 # define isblank(ch) ((ch) == ' ' || (ch) == '\t')
 #endif
 
@@ -116,9 +114,6 @@
 # define __wctype wctype
 # define __iswctype iswctype
 # define __btowc btowc
-# ifndef __mempcpy
-#  define __mempcpy mempcpy
-# endif
 # define __wcrtomb wcrtomb
 # define __regfree regfree
 # define attribute_hidden
diff --git a/gl/regexec.c b/gl/regexec.c
index 7c186aa2..ac6c258e 100644
--- a/gl/regexec.c
+++ b/gl/regexec.c
@@ -1,11 +1,12 @@
 /* Extended regular expression matching and search library.
-   Copyright (C) 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007 Free Software Foundation,
+   Inc.
    This file is part of the GNU C Library.
    Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
+   the Free Software Foundation; either version 3, or (at your option)
    any later version.
 
    This program is distributed in the hope that it will be useful,
@@ -221,10 +222,10 @@ static reg_errcode_t extend_buffers (re_match_context_t *mctx)
 
 int
 regexec (preg, string, nmatch, pmatch, eflags)
-    const regex_t *__restrict preg;
-    const char *__restrict string;
+    const regex_t *_Restrict_ preg;
+    const char *_Restrict_ string;
     size_t nmatch;
-    regmatch_t pmatch[];
+    regmatch_t pmatch[_Restrict_arr_];
     int eflags;
 {
   reg_errcode_t err;
@@ -267,8 +268,8 @@ __typeof__ (__regexec) __compat_regexec;
 
 int
 attribute_compat_text_section
-__compat_regexec (const regex_t *__restrict preg,
-                  const char *__restrict string, size_t nmatch,
+__compat_regexec (const regex_t *_Restrict_ preg,
+                  const char *_Restrict_ string, size_t nmatch,
                   regmatch_t pmatch[], int eflags)
 {
   return regexec (preg, string, nmatch, pmatch,
@@ -2338,7 +2339,7 @@ transit_state (reg_errcode_t *err, re_match_context_t *mctx,
 }
 
 /* Update the state_log if we need */
-re_dfastate_t *
+static re_dfastate_t *
 internal_function
 merge_state_with_log (reg_errcode_t *err, re_match_context_t *mctx,
                       re_dfastate_t *next_state)
diff --git a/gl/safe-read.c b/gl/safe-read.c
index b7bf1d5c..0cb1edee 100644
--- a/gl/safe-read.c
+++ b/gl/safe-read.c
@@ -3,10 +3,10 @@
    Copyright (C) 1993, 1994, 1998, 2002, 2003, 2004, 2005, 2006 Free
    Software Foundation, Inc.
 
-   This program is free software; you can redistribute it and/or modify
+   This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -14,8 +14,7 @@
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software Foundation,
-   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/gl/safe-read.h b/gl/safe-read.h
index 3451955a..ba191713 100644
--- a/gl/safe-read.h
+++ b/gl/safe-read.h
@@ -1,10 +1,10 @@
 /* An interface to read() that retries after interrupts.
    Copyright (C) 2002, 2006 Free Software Foundation, Inc.
 
-   This program is free software; you can redistribute it and/or modify
+   This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -12,8 +12,7 @@
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software Foundation,
-   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #include <stddef.h>
 
diff --git a/gl/safe-write.c b/gl/safe-write.c
index 4c375a6c..b644f7cf 100644
--- a/gl/safe-write.c
+++ b/gl/safe-write.c
@@ -1,10 +1,10 @@
 /* An interface to write that retries after interrupts.
    Copyright (C) 2002 Free Software Foundation, Inc.
 
-   This program is free software; you can redistribute it and/or modify
+   This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -12,8 +12,7 @@
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software Foundation,
-   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #define SAFE_WRITE
 #include "safe-read.c"
diff --git a/gl/safe-write.h b/gl/safe-write.h
index c1946362..da036a97 100644
--- a/gl/safe-write.h
+++ b/gl/safe-write.h
@@ -1,10 +1,10 @@
 /* An interface to write() that retries after interrupts.
    Copyright (C) 2002 Free Software Foundation, Inc.
 
-   This program is free software; you can redistribute it and/or modify
+   This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -12,8 +12,7 @@
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software Foundation,
-   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #include <stddef.h>
 
diff --git a/gl/size_max.h b/gl/size_max.h
index ed0bc137..2ccc5f08 100644
--- a/gl/size_max.h
+++ b/gl/size_max.h
@@ -4,7 +4,7 @@
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
+   the Free Software Foundation; either version 3, or (at your option)
    any later version.
 
    This program is distributed in the hope that it will be useful,
diff --git a/gl/snprintf.c b/gl/snprintf.c
index db1ca9af..960cfdb4 100644
--- a/gl/snprintf.c
+++ b/gl/snprintf.c
@@ -1,10 +1,10 @@
 /* Formatted output to strings.
-   Copyright (C) 2004, 2006 Free Software Foundation, Inc.
+   Copyright (C) 2004, 2006-2007 Free Software Foundation, Inc.
    Written by Simon Josefsson and Paul Eggert.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
+   the Free Software Foundation; either version 3, or (at your option)
    any later version.
 
    This program is distributed in the hope that it will be useful,
@@ -18,7 +18,8 @@
 
 #include <config.h>
 
-#include "snprintf.h"
+/* Specification.  */
+#include <stdio.h>
 
 #include <errno.h>
 #include <limits.h>
@@ -37,7 +38,7 @@
    additional length SIZE limit how much is written into STR.  Returns
    string length of formatted string (which may be larger than SIZE).
    STR may be NULL, in which case nothing will be written.  On error,
-   return a negative value. */
+   return a negative value.  */
 int
 snprintf (char *str, size_t size, const char *format, ...)
 {
diff --git a/gl/snprintf.h b/gl/snprintf.h
deleted file mode 100644
index 5032b9e8..00000000
--- a/gl/snprintf.h
+++ /dev/null
@@ -1,29 +0,0 @@
-/* Formatted output to strings.
-   Copyright (C) 2004 Free Software Foundation, Inc.
-   Written by Simon Josefsson.
-
-   This program is free software; you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License along
-   with this program; if not, write to the Free Software Foundation,
-   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
-
-#ifndef SNPRINTF_H
-#define SNPRINTF_H
-
-/* Get snprintf declaration, if available.  */
-#include <stdio.h>
-
-#if defined HAVE_DECL_SNPRINTF && !HAVE_DECL_SNPRINTF
-int snprintf (char *str, size_t size, const char *format, ...);
-#endif
-
-#endif /* SNPRINTF_H */
diff --git a/gl/stdbool_.h b/gl/stdbool.in.h
index efa80ba9..171d70ab 100644
--- a/gl/stdbool_.h
+++ b/gl/stdbool.in.h
@@ -1,9 +1,9 @@
-/* Copyright (C) 2001, 2002, 2003, 2006 Free Software Foundation, Inc.
+/* Copyright (C) 2001, 2002, 2003, 2006, 2007 Free Software Foundation, Inc.
    Written by Bruno Haible <haible@clisp.cons.org>, 2001.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
+   the Free Software Foundation; either version 3, or (at your option)
    any later version.
 
    This program is distributed in the hope that it will be useful,
@@ -15,8 +15,8 @@
    along with this program; if not, write to the Free Software Foundation,
    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
 
-#ifndef _STDBOOL_H
-#define _STDBOOL_H
+#ifndef _GL_STDBOOL_H
+#define _GL_STDBOOL_H
 
 /* ISO C 99 <stdbool.h> for platforms that lack it.  */
 
@@ -41,6 +41,9 @@
 
        - You cannot assume that _Bool is a typedef; it might be a macro.
 
+       - Bit-fields of type 'bool' are not supported.  Portable code
+         should use 'unsigned int foo : 1;' rather than 'bool foo : 1;'.
+
        - In C99, casts and automatic conversions to '_Bool' or 'bool' are
          performed in such a way that every nonzero value gets converted
          to 'true', and zero gets converted to 'false'.  This doesn't work
@@ -94,10 +97,11 @@ typedef bool _Bool;
           "warning: _Bool is a keyword in ISO C99".
         Use of an enum type, with IRIX cc, leads to a stupid
           "warning(1185): enumerated type mixed with another type".
-        The only benefit of the enum type, debuggability, is not important
-        with these compilers.  So use 'signed char' and no typedef.  */
+        Even the existence of an enum type, without a typedef,
+          "Invalid enumerator. (badenum)" with HP-UX cc on Tru64.
+        The only benefit of the enum, debuggability, is not important
+        with these compilers.  So use 'signed char' and no enum.  */
 #  define _Bool signed char
-enum { false = 0, true = 1 };
 # else
    /* With this compiler, trust the _Bool type if the compiler has it.  */
 #  if !@HAVE__BOOL@
@@ -112,4 +116,4 @@ typedef enum { _Bool_must_promote_to_int = -1, false = 0, true = 1 } _Bool;
 #define true 1
 #define __bool_true_false_are_defined 1
 
-#endif /* _STDBOOL_H */
+#endif /* _GL_STDBOOL_H */
diff --git a/gl/stdint_.h b/gl/stdint.in.h
index 64ec8c5b..67baceb6 100644
--- a/gl/stdint_.h
+++ b/gl/stdint.in.h
@@ -4,7 +4,7 @@
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
+   the Free Software Foundation; either version 3, or (at your option)
    any later version.
 
    This program is distributed in the hope that it will be useful,
@@ -16,14 +16,19 @@
    along with this program; if not, write to the Free Software Foundation,
    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
 
-#ifndef _GL_STDINT_H
-#define _GL_STDINT_H
-
 /*
  * ISO C 99 <stdint.h> for platforms that lack it.
  * <http://www.opengroup.org/susv3xbd/stdint.h.html>
  */
 
+#ifndef _GL_STDINT_H
+
+/* When including a system file that in turn includes <inttypes.h>,
+   use the system <inttypes.h>, not our substitute.  This avoids
+   problems with (for example) VMS, whose <sys/bitypes.h> includes
+   <inttypes.h>.  */
+#define _GL_JUST_INCLUDE_SYSTEM_INTTYPES_H
+
 /* Get those types that are already defined in other system include
    files, so that we can "#define int8_t signed char" below without
    worrying about a later system include file containing a "typedef
@@ -42,16 +47,20 @@
   /* Other systems may have an incomplete or buggy <stdint.h>.
      Include it before <inttypes.h>, since any "#include <stdint.h>"
      in <inttypes.h> would reinclude us, skipping our contents because
-     _GL_STDINT_H is defined.  */
-# include @ABSOLUTE_STDINT_H@
+     _GL_STDINT_H is defined.
+     The include_next requires a split double-inclusion guard.  */
+# @INCLUDE_NEXT@ @NEXT_STDINT_H@
 #endif
 
+#if ! defined _GL_STDINT_H && ! defined _GL_JUST_INCLUDE_SYSTEM_STDINT_H
+#define _GL_STDINT_H
+
 /* <sys/types.h> defines some of the stdint.h types as well, on glibc,
    IRIX 6.5, and OpenBSD 3.8 (via <machine/types.h>).
    AIX 5.2 <sys/types.h> isn't needed and causes troubles.
    MacOS X 10.4.6 <sys/types.h> includes <stdint.h> (which is us), but
    relies on the system <stdint.h> definitions, so include
-   <sys/types.h> after @ABSOLUTE_STDINT_H@.  */
+   <sys/types.h> after @NEXT_STDINT_H@.  */
 #if @HAVE_SYS_TYPES_H@ && ! defined _AIX
 # include <sys/types.h>
 #endif
@@ -63,9 +72,7 @@
   /* In OpenBSD 3.8, <inttypes.h> includes <machine/types.h>, which defines
      int{8,16,32,64}_t, uint{8,16,32,64}_t and __BIT_TYPES_DEFINED__.
      <inttypes.h> also defines intptr_t and uintptr_t.  */
-# define _GL_JUST_INCLUDE_ABSOLUTE_INTTYPES_H
 # include <inttypes.h>
-# undef _GL_JUST_INCLUDE_ABSOLUTE_INTTYPES_H
 #elif @HAVE_SYS_INTTYPES_H@
   /* Solaris 7 <sys/inttypes.h> has the types except the *_fast*_t types, and
      the macros except for *_FAST*_*, INTPTR_MIN, PTRDIFF_MIN, PTRDIFF_MAX.  */
@@ -88,6 +95,8 @@
 
 #endif
 
+#undef _GL_JUST_INCLUDE_SYSTEM_INTTYPES_H
+
 /* Minimum and maximum values for a integer type under the usual assumption.
    Return an unspecified value if BITS == 0, adding a check to pacify
    picky compilers.  */
@@ -98,7 +107,10 @@
 #define _STDINT_MAX(signed, bits, zero) \
   ((signed) \
    ? ~ _STDINT_MIN (signed, bits, zero) \
-   : ((((zero) + 1) << ((bits) ? (bits) - 1 : 0)) - 1) * 2 + 1)
+   : /* The expression for the unsigned case.  The subtraction of (signed) \
+        is a nop in the unsigned case and avoids "signed integer overflow" \
+        warnings in the signed case.  */ \
+     ((((zero) + 1) << ((bits) ? (bits) - 1 - (signed) : 0)) - 1) * 2 + 1)
 
 /* 7.18.1.1. Exact-width integer types */
 
@@ -120,22 +132,34 @@
 #define int32_t int
 #define uint32_t unsigned int
 
-#undef int64_t
+/* Do not undefine int64_t if gnulib is not being used with 64-bit
+   types, since otherwise it breaks platforms like Tandem/NSK.  */
 #if LONG_MAX >> 31 >> 31 == 1
+# undef int64_t
 # define int64_t long int
+# define GL_INT64_T
 #elif defined _MSC_VER
+# undef int64_t
 # define int64_t __int64
+# define GL_INT64_T
 #elif @HAVE_LONG_LONG_INT@
+# undef int64_t
 # define int64_t long long int
+# define GL_INT64_T
 #endif
 
-#undef uint64_t
 #if ULONG_MAX >> 31 >> 31 >> 1 == 1
+# undef uint64_t
 # define uint64_t unsigned long int
+# define GL_UINT64_T
 #elif defined _MSC_VER
+# undef uint64_t
 # define uint64_t unsigned __int64
+# define GL_UINT64_T
 #elif @HAVE_UNSIGNED_LONG_LONG_INT@
+# undef uint64_t
 # define uint64_t unsigned long long int
+# define GL_UINT64_T
 #endif
 
 /* Avoid collision with Solaris 2.5.1 <pthread.h> etc.  */
@@ -164,10 +188,10 @@
 #define uint_least16_t uint16_t
 #define int_least32_t int32_t
 #define uint_least32_t uint32_t
-#ifdef int64_t
+#ifdef GL_INT64_T
 # define int_least64_t int64_t
 #endif
-#ifdef uint64_t
+#ifdef GL_UINT64_T
 # define uint_least64_t uint64_t
 #endif
 
@@ -195,10 +219,10 @@
 #define uint_fast16_t unsigned int_fast16_t
 #define int_fast32_t long int
 #define uint_fast32_t unsigned int_fast32_t
-#ifdef int64_t
+#ifdef GL_INT64_T
 # define int_fast64_t int64_t
 #endif
-#ifdef uint64_t
+#ifdef GL_UINT64_T
 # define uint_fast64_t uint64_t
 #endif
 
@@ -217,7 +241,7 @@
 #undef intmax_t
 #if @HAVE_LONG_LONG_INT@ && LONG_MAX >> 30 == 1
 # define intmax_t long long int
-#elif defined int64_t
+#elif defined GL_INT64_T
 # define intmax_t int64_t
 #else
 # define intmax_t long int
@@ -226,12 +250,17 @@
 #undef uintmax_t
 #if @HAVE_UNSIGNED_LONG_LONG_INT@ && ULONG_MAX >> 31 == 1
 # define uintmax_t unsigned long long int
-#elif defined uint64_t
+#elif defined GL_UINT64_T
 # define uintmax_t uint64_t
 #else
 # define uintmax_t unsigned long int
 #endif
 
+/* Verify that intmax_t and uintmax_t have the same size.  Too much code
+   breaks if this is not the case.  If this check fails, the reason is likely
+   to be found in the autoconf macros.  */
+typedef int _verify_intmax_size[2 * (sizeof (intmax_t) == sizeof (uintmax_t)) - 1];
+
 /* 7.18.2. Limits of specified-width integer types */
 
 #if ! defined __cplusplus || defined __STDC_LIMIT_MACROS
@@ -264,13 +293,15 @@
 
 #undef INT64_MIN
 #undef INT64_MAX
-#ifdef int64_t
-# define INT64_MIN  (~ INT64_MAX)
+#ifdef GL_INT64_T
+/* Prefer (- INTMAX_C (1) << 63) over (~ INT64_MAX) because SunPRO C 5.0
+   evaluates the latter incorrectly in preprocessor expressions.  */
+# define INT64_MIN  (- INTMAX_C (1) << 63)
 # define INT64_MAX  INTMAX_C (9223372036854775807)
 #endif
 
 #undef UINT64_MAX
-#ifdef uint64_t
+#ifdef GL_UINT64_T
 # define UINT64_MAX  UINTMAX_C (18446744073709551615)
 #endif
 
@@ -303,13 +334,13 @@
 
 #undef INT_LEAST64_MIN
 #undef INT_LEAST64_MAX
-#ifdef int64_t
+#ifdef GL_INT64_T
 # define INT_LEAST64_MIN  INT64_MIN
 # define INT_LEAST64_MAX  INT64_MAX
 #endif
 
 #undef UINT_LEAST64_MAX
-#ifdef uint64_t
+#ifdef GL_UINT64_T
 # define UINT_LEAST64_MAX  UINT64_MAX
 #endif
 
@@ -342,13 +373,13 @@
 
 #undef INT_FAST64_MIN
 #undef INT_FAST64_MAX
-#ifdef int64_t
+#ifdef GL_INT64_T
 # define INT_FAST64_MIN  INT64_MIN
 # define INT_FAST64_MAX  INT64_MAX
 #endif
 
 #undef UINT_FAST64_MAX
-#ifdef uint64_t
+#ifdef GL_UINT64_T
 # define UINT_FAST64_MAX  UINT64_MAX
 #endif
 
@@ -365,10 +396,11 @@
 
 #undef INTMAX_MIN
 #undef INTMAX_MAX
-#define INTMAX_MIN  (~ INTMAX_MAX)
 #ifdef INT64_MAX
+# define INTMAX_MIN  INT64_MIN
 # define INTMAX_MAX  INT64_MAX
 #else
+# define INTMAX_MIN  INT32_MIN
 # define INTMAX_MAX  INT32_MAX
 #endif
 
@@ -469,7 +501,7 @@
 #undef INTMAX_C
 #if @HAVE_LONG_LONG_INT@ && LONG_MAX >> 30 == 1
 # define INTMAX_C(x)   x##LL
-#elif defined int64_t
+#elif defined GL_INT64_T
 # define INTMAX_C(x)   INT64_C(x)
 #else
 # define INTMAX_C(x)   x##L
@@ -478,7 +510,7 @@
 #undef UINTMAX_C
 #if @HAVE_UNSIGNED_LONG_LONG_INT@ && ULONG_MAX >> 31 == 1
 # define UINTMAX_C(x)  x##ULL
-#elif defined uint64_t
+#elif defined GL_UINT64_T
 # define UINTMAX_C(x)  UINT64_C(x)
 #else
 # define UINTMAX_C(x)  x##UL
@@ -487,3 +519,4 @@
 #endif /* !defined __cplusplus || defined __STDC_CONSTANT_MACROS */
 
 #endif /* _GL_STDINT_H */
+#endif /* !defined _GL_STDINT_H && !defined _GL_JUST_INCLUDE_SYSTEM_STDINT_H */
diff --git a/gl/stdio.in.h b/gl/stdio.in.h
new file mode 100644
index 00000000..434fa8e7
--- /dev/null
+++ b/gl/stdio.in.h
@@ -0,0 +1,382 @@
+/* A GNU-like <stdio.h>.
+
+   Copyright (C) 2004, 2007-2008 Free Software Foundation, Inc.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+
+#if defined __need_FILE || defined __need___FILE
+/* Special invocation convention inside glibc header files.  */
+
+#@INCLUDE_NEXT@ @NEXT_STDIO_H@
+
+#else
+/* Normal invocation convention.  */
+
+#ifndef _GL_STDIO_H
+
+/* The include_next requires a split double-inclusion guard.  */
+#@INCLUDE_NEXT@ @NEXT_STDIO_H@
+
+#ifndef _GL_STDIO_H
+#define _GL_STDIO_H
+
+#include <stdarg.h>
+#include <stddef.h>
+
+#if (@GNULIB_FSEEKO@ && @REPLACE_FSEEKO@) \
+  || (@GNULIB_FTELLO@ && @REPLACE_FTELLO@) \
+  || (@GNULIB_GETDELIM@ && !@HAVE_DECL_GETDELIM@) \
+  || (@GNULIB_GETLINE@ && (!@HAVE_DECL_GETLINE@ || @REPLACE_GETLINE@))
+/* Get off_t and ssize_t.  */
+# include <sys/types.h>
+#endif
+
+#ifndef __attribute__
+/* This feature is available in gcc versions 2.5 and later.  */
+# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 5)
+#  define __attribute__(Spec) /* empty */
+# endif
+/* The __-protected variants of `format' and `printf' attributes
+   are accepted by gcc versions 2.6.4 (effectively 2.7) and later.  */
+# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7)
+#  define __format__ format
+#  define __printf__ printf
+# endif
+#endif
+
+
+/* The definition of GL_LINK_WARNING is copied here.  */
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+#if @GNULIB_FPRINTF_POSIX@
+# if @REPLACE_FPRINTF@
+#  define fprintf rpl_fprintf
+extern int fprintf (FILE *fp, const char *format, ...)
+       __attribute__ ((__format__ (__printf__, 2, 3)));
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef fprintf
+# define fprintf \
+    (GL_LINK_WARNING ("fprintf is not always POSIX compliant - " \
+                      "use gnulib module fprintf-posix for portable " \
+                      "POSIX compliance"), \
+     fprintf)
+#endif
+
+#if @GNULIB_VFPRINTF_POSIX@
+# if @REPLACE_VFPRINTF@
+#  define vfprintf rpl_vfprintf
+extern int vfprintf (FILE *fp, const char *format, va_list args)
+       __attribute__ ((__format__ (__printf__, 2, 0)));
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef vfprintf
+# define vfprintf(s,f,a) \
+    (GL_LINK_WARNING ("vfprintf is not always POSIX compliant - " \
+                      "use gnulib module vfprintf-posix for portable " \
+                      "POSIX compliance"), \
+     vfprintf (s, f, a))
+#endif
+
+#if @GNULIB_PRINTF_POSIX@
+# if @REPLACE_PRINTF@
+/* Don't break __attribute__((format(printf,M,N))).  */
+#  define printf __printf__
+extern int printf (const char *format, ...)
+       __attribute__ ((__format__ (__printf__, 1, 2)));
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef printf
+# define printf \
+    (GL_LINK_WARNING ("printf is not always POSIX compliant - " \
+                      "use gnulib module printf-posix for portable " \
+                      "POSIX compliance"), \
+     printf)
+/* Don't break __attribute__((format(printf,M,N))).  */
+# define format(kind,m,n) format (__##kind##__, m, n)
+# define __format__(kind,m,n) __format__ (__##kind##__, m, n)
+# define ____printf____ __printf__
+# define ____scanf____ __scanf__
+# define ____strftime____ __strftime__
+# define ____strfmon____ __strfmon__
+#endif
+
+#if @GNULIB_VPRINTF_POSIX@
+# if @REPLACE_VPRINTF@
+#  define vprintf rpl_vprintf
+extern int vprintf (const char *format, va_list args)
+       __attribute__ ((__format__ (__printf__, 1, 0)));
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef vprintf
+# define vprintf(f,a) \
+    (GL_LINK_WARNING ("vprintf is not always POSIX compliant - " \
+                      "use gnulib module vprintf-posix for portable " \
+                      "POSIX compliance"), \
+     vprintf (f, a))
+#endif
+
+#if @GNULIB_SNPRINTF@
+# if @REPLACE_SNPRINTF@
+#  define snprintf rpl_snprintf
+# endif
+# if @REPLACE_SNPRINTF@ || !@HAVE_DECL_SNPRINTF@
+extern int snprintf (char *str, size_t size, const char *format, ...)
+       __attribute__ ((__format__ (__printf__, 3, 4)));
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef snprintf
+# define snprintf \
+    (GL_LINK_WARNING ("snprintf is unportable - " \
+                      "use gnulib module snprintf for portability"), \
+     snprintf)
+#endif
+
+#if @GNULIB_VSNPRINTF@
+# if @REPLACE_VSNPRINTF@
+#  define vsnprintf rpl_vsnprintf
+# endif
+# if @REPLACE_VSNPRINTF@ || !@HAVE_DECL_VSNPRINTF@
+extern int vsnprintf (char *str, size_t size, const char *format, va_list args)
+       __attribute__ ((__format__ (__printf__, 3, 0)));
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef vsnprintf
+# define vsnprintf(b,s,f,a) \
+    (GL_LINK_WARNING ("vsnprintf is unportable - " \
+                      "use gnulib module vsnprintf for portability"), \
+     vsnprintf (b, s, f, a))
+#endif
+
+#if @GNULIB_SPRINTF_POSIX@
+# if @REPLACE_SPRINTF@
+#  define sprintf rpl_sprintf
+extern int sprintf (char *str, const char *format, ...)
+       __attribute__ ((__format__ (__printf__, 2, 3)));
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef sprintf
+# define sprintf \
+    (GL_LINK_WARNING ("sprintf is not always POSIX compliant - " \
+                      "use gnulib module sprintf-posix for portable " \
+                      "POSIX compliance"), \
+     sprintf)
+#endif
+
+#if @GNULIB_VSPRINTF_POSIX@
+# if @REPLACE_VSPRINTF@
+#  define vsprintf rpl_vsprintf
+extern int vsprintf (char *str, const char *format, va_list args)
+       __attribute__ ((__format__ (__printf__, 2, 0)));
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef vsprintf
+# define vsprintf(b,f,a) \
+    (GL_LINK_WARNING ("vsprintf is not always POSIX compliant - " \
+                      "use gnulib module vsprintf-posix for portable " \
+                      "POSIX compliance"), \
+     vsprintf (b, f, a))
+#endif
+
+#if @GNULIB_VASPRINTF@
+# if @REPLACE_VASPRINTF@
+#  define asprintf rpl_asprintf
+#  define vasprintf rpl_vasprintf
+# endif
+# if @REPLACE_VASPRINTF@ || !@HAVE_VASPRINTF@
+  /* Write formatted output to a string dynamically allocated with malloc().
+     If the memory allocation succeeds, store the address of the string in
+     *RESULT and return the number of resulting bytes, excluding the trailing
+     NUL.  Upon memory allocation error, or some other error, return -1.  */
+  extern int asprintf (char **result, const char *format, ...)
+    __attribute__ ((__format__ (__printf__, 2, 3)));
+  extern int vasprintf (char **result, const char *format, va_list args)
+    __attribute__ ((__format__ (__printf__, 2, 0)));
+# endif
+#endif
+
+#if @GNULIB_FOPEN@
+# if @REPLACE_FOPEN@
+#  define fopen rpl_fopen
+extern FILE * fopen (const char *filename, const char *mode);
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef fopen
+# define fopen(f,m) \
+   (GL_LINK_WARNING ("fopen on Win32 platforms is not POSIX compatible - " \
+                     "use gnulib module fopen for portability"), \
+    fopen (f, m))
+#endif
+
+#if @GNULIB_FREOPEN@
+# if @REPLACE_FREOPEN@
+#  define freopen rpl_freopen
+extern FILE * freopen (const char *filename, const char *mode, FILE *stream);
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef freopen
+# define freopen(f,m,s) \
+   (GL_LINK_WARNING ("freopen on Win32 platforms is not POSIX compatible - " \
+                     "use gnulib module freopen for portability"), \
+    freopen (f, m, s))
+#endif
+
+#if @GNULIB_FSEEKO@
+# if @REPLACE_FSEEKO@
+/* Provide fseek, fseeko functions that are aware of a preceding
+   fflush(), and which detect pipes.  */
+#  define fseeko rpl_fseeko
+extern int fseeko (FILE *fp, off_t offset, int whence);
+#  define fseek(fp, offset, whence) fseeko (fp, (off_t)(offset), whence)
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef fseeko
+# define fseeko(f,o,w) \
+   (GL_LINK_WARNING ("fseeko is unportable - " \
+                     "use gnulib module fseeko for portability"), \
+    fseeko (f, o, w))
+#endif
+
+#if @GNULIB_FSEEK@ && @REPLACE_FSEEK@
+extern int rpl_fseek (FILE *fp, long offset, int whence);
+# undef fseek
+# if defined GNULIB_POSIXCHECK
+#  define fseek(f,o,w) \
+     (GL_LINK_WARNING ("fseek cannot handle files larger than 4 GB " \
+                       "on 32-bit platforms - " \
+                       "use fseeko function for handling of large files"), \
+      rpl_fseek (f, o, w))
+# else
+#  define fseek rpl_fseek
+# endif
+#elif defined GNULIB_POSIXCHECK
+# ifndef fseek
+#  define fseek(f,o,w) \
+     (GL_LINK_WARNING ("fseek cannot handle files larger than 4 GB " \
+                       "on 32-bit platforms - " \
+                       "use fseeko function for handling of large files"), \
+      fseek (f, o, w))
+# endif
+#endif
+
+#if @GNULIB_FTELLO@
+# if @REPLACE_FTELLO@
+#  define ftello rpl_ftello
+extern off_t ftello (FILE *fp);
+#  define ftell(fp) ftello (fp)
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef ftello
+# define ftello(f) \
+   (GL_LINK_WARNING ("ftello is unportable - " \
+                     "use gnulib module ftello for portability"), \
+    ftello (f))
+#endif
+
+#if @GNULIB_FTELL@ && @REPLACE_FTELL@
+extern long rpl_ftell (FILE *fp);
+# undef ftell
+# if GNULIB_POSIXCHECK
+#  define ftell(f) \
+     (GL_LINK_WARNING ("ftell cannot handle files larger than 4 GB " \
+                       "on 32-bit platforms - " \
+                       "use ftello function for handling of large files"), \
+      rpl_ftell (f))
+# else
+#  define ftell rpl_ftell
+# endif
+#elif defined GNULIB_POSIXCHECK
+# ifndef ftell
+#  define ftell(f) \
+     (GL_LINK_WARNING ("ftell cannot handle files larger than 4 GB " \
+                       "on 32-bit platforms - " \
+                       "use ftello function for handling of large files"), \
+      ftell (f))
+# endif
+#endif
+
+#if @GNULIB_FFLUSH@
+# if @REPLACE_FFLUSH@
+#  define fflush rpl_fflush
+  /* Flush all pending data on STREAM according to POSIX rules.  Both
+     output and seekable input streams are supported.
+     Note! LOSS OF DATA can occur if fflush is applied on an input stream
+     that is _not_seekable_ or on an update stream that is _not_seekable_
+     and in which the most recent operation was input.  Seekability can
+     be tested with lseek(fileno(fp),0,SEEK_CUR).  */
+  extern int fflush (FILE *gl_stream);
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef fflush
+# define fflush(f) \
+   (GL_LINK_WARNING ("fflush is not always POSIX compliant - " \
+                     "use gnulib module fflush for portable " \
+                     "POSIX compliance"), \
+    fflush (f))
+#endif
+
+#if @GNULIB_GETDELIM@
+# if !@HAVE_DECL_GETDELIM@
+/* Read input, up to (and including) the next occurrence of DELIMITER, from
+   STREAM, store it in *LINEPTR (and NUL-terminate it).
+   *LINEPTR is a pointer returned from malloc (or NULL), pointing to *LINESIZE
+   bytes of space.  It is realloc'd as necessary.
+   Return the number of bytes read and stored at *LINEPTR (not including the
+   NUL terminator), or -1 on error or EOF.  */
+extern ssize_t getdelim (char **lineptr, size_t *linesize, int delimiter,
+                         FILE *stream);
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef getdelim
+# define getdelim(l, s, d, f)                                       \
+  (GL_LINK_WARNING ("getdelim is unportable - "                     \
+                    "use gnulib module getdelim for portability"),  \
+   getdelim (l, s, d, f))
+#endif
+
+#if @GNULIB_GETLINE@
+# if @REPLACE_GETLINE@
+#  undef getline
+#  define getline rpl_getline
+# endif
+# if !@HAVE_DECL_GETLINE@ || @REPLACE_GETLINE@
+/* Read a line, up to (and including) the next newline, from STREAM, store it
+   in *LINEPTR (and NUL-terminate it).
+   *LINEPTR is a pointer returned from malloc (or NULL), pointing to *LINESIZE
+   bytes of space.  It is realloc'd as necessary.
+   Return the number of bytes read and stored at *LINEPTR (not including the
+   NUL terminator), or -1 on error or EOF.  */
+extern ssize_t getline (char **lineptr, size_t *linesize, FILE *stream);
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef getline
+# define getline(l, s, f)                                               \
+  (GL_LINK_WARNING ("getline is unportable - "                          \
+                    "use gnulib module getline for portability"),       \
+   getline (l, s, f))
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _GL_STDIO_H */
+#endif /* _GL_STDIO_H */
+#endif
diff --git a/gl/stdlib.in.h b/gl/stdlib.in.h
new file mode 100644
index 00000000..100ff526
--- /dev/null
+++ b/gl/stdlib.in.h
@@ -0,0 +1,208 @@
+/* A GNU-like <stdlib.h>.
+
+   Copyright (C) 1995, 2001-2004, 2006-2007 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#if defined __need_malloc_and_calloc
+/* Special invocation convention inside glibc header files.  */
+
+#@INCLUDE_NEXT@ @NEXT_STDLIB_H@
+
+#else
+/* Normal invocation convention.  */
+
+#ifndef _GL_STDLIB_H
+
+/* The include_next requires a split double-inclusion guard.  */
+#@INCLUDE_NEXT@ @NEXT_STDLIB_H@
+
+#ifndef _GL_STDLIB_H
+#define _GL_STDLIB_H
+
+
+/* The definition of GL_LINK_WARNING is copied here.  */
+
+
+/* Some systems do not define EXIT_*, despite otherwise supporting C89.  */
+#ifndef EXIT_SUCCESS
+# define EXIT_SUCCESS 0
+#endif
+/* Tandem/NSK and other platforms that define EXIT_FAILURE as -1 interfere
+   with proper operation of xargs.  */
+#ifndef EXIT_FAILURE
+# define EXIT_FAILURE 1
+#elif EXIT_FAILURE != 1
+# undef EXIT_FAILURE
+# define EXIT_FAILURE 1
+#endif
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+#if @GNULIB_MALLOC_POSIX@
+# if !@HAVE_MALLOC_POSIX@
+#  undef malloc
+#  define malloc rpl_malloc
+extern void * malloc (size_t size);
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef malloc
+# define malloc(s) \
+    (GL_LINK_WARNING ("malloc is not POSIX compliant everywhere - " \
+                      "use gnulib module malloc-posix for portability"), \
+     malloc (s))
+#endif
+
+
+#if @GNULIB_REALLOC_POSIX@
+# if !@HAVE_REALLOC_POSIX@
+#  undef realloc
+#  define realloc rpl_realloc
+extern void * realloc (void *ptr, size_t size);
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef realloc
+# define realloc(p,s) \
+    (GL_LINK_WARNING ("realloc is not POSIX compliant everywhere - " \
+                      "use gnulib module realloc-posix for portability"), \
+     realloc (p, s))
+#endif
+
+
+#if @GNULIB_CALLOC_POSIX@
+# if !@HAVE_CALLOC_POSIX@
+#  undef calloc
+#  define calloc rpl_calloc
+extern void * calloc (size_t nmemb, size_t size);
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef calloc
+# define calloc(n,s) \
+    (GL_LINK_WARNING ("calloc is not POSIX compliant everywhere - " \
+                      "use gnulib module calloc-posix for portability"), \
+     calloc (n, s))
+#endif
+
+
+#if @GNULIB_GETSUBOPT@
+/* Assuming *OPTIONP is a comma separated list of elements of the form
+   "token" or "token=value", getsubopt parses the first of these elements.
+   If the first element refers to a "token" that is member of the given
+   NULL-terminated array of tokens:
+     - It replaces the comma with a NUL byte, updates *OPTIONP to point past
+       the first option and the comma, sets *VALUEP to the value of the
+       element (or NULL if it doesn't contain an "=" sign),
+     - It returns the index of the "token" in the given array of tokens.
+   Otherwise it returns -1, and *OPTIONP and *VALUEP are undefined.
+   For more details see the POSIX:2001 specification.
+   http://www.opengroup.org/susv3xsh/getsubopt.html */
+# if !@HAVE_GETSUBOPT@
+extern int getsubopt (char **optionp, char *const *tokens, char **valuep);
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef getsubopt
+# define getsubopt(o,t,v) \
+    (GL_LINK_WARNING ("getsubopt is unportable - " \
+                      "use gnulib module getsubopt for portability"), \
+     getsubopt (o, t, v))
+#endif
+
+
+#if @GNULIB_MKDTEMP@
+# if !@HAVE_MKDTEMP@
+/* Create a unique temporary directory from TEMPLATE.
+   The last six characters of TEMPLATE must be "XXXXXX";
+   they are replaced with a string that makes the directory name unique.
+   Returns TEMPLATE, or a null pointer if it cannot get a unique name.
+   The directory is created mode 700.  */
+extern char * mkdtemp (char * /*template*/);
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef mkdtemp
+# define mkdtemp(t) \
+    (GL_LINK_WARNING ("mkdtemp is unportable - " \
+                      "use gnulib module mkdtemp for portability"), \
+     mkdtemp (t))
+#endif
+
+
+#if @GNULIB_MKSTEMP@
+# if @REPLACE_MKSTEMP@
+/* Create a unique temporary file from TEMPLATE.
+   The last six characters of TEMPLATE must be "XXXXXX";
+   they are replaced with a string that makes the file name unique.
+   The file is then created, ensuring it didn't exist before.
+   The file is created read-write (mask at least 0600 & ~umask), but it may be
+   world-readable and world-writable (mask 0666 & ~umask), depending on the
+   implementation.
+   Returns the open file descriptor if successful, otherwise -1 and errno
+   set.  */
+#  define mkstemp rpl_mkstemp
+extern int mkstemp (char * /*template*/);
+# else
+/* On MacOS X 10.3, only <unistd.h> declares mkstemp.  */
+#  include <unistd.h>
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef mkstemp
+# define mkstemp(t) \
+    (GL_LINK_WARNING ("mkstemp is unportable - " \
+                      "use gnulib module mkstemp for portability"), \
+     mkstemp (t))
+#endif
+
+
+#if @GNULIB_PUTENV@
+# if @REPLACE_PUTENV@
+#  undef putenv
+#  define putenv rpl_putenv
+extern int putenv (char *string);
+# endif
+#endif
+
+
+#if @GNULIB_SETENV@
+# if !@HAVE_SETENV@
+/* Set NAME to VALUE in the environment.
+   If REPLACE is nonzero, overwrite an existing value.  */
+extern int setenv (const char *name, const char *value, int replace);
+# endif
+#endif
+
+
+#if @GNULIB_UNSETENV@
+# if @HAVE_UNSETENV@
+#  if @VOID_UNSETENV@
+/* On some systems, unsetenv() returns void.
+   This is the case for MacOS X 10.3, FreeBSD 4.8, NetBSD 1.6, OpenBSD 3.4.  */
+#   define unsetenv(name) ((unsetenv)(name), 0)
+#  endif
+# else
+/* Remove the variable NAME from the environment.  */
+extern int unsetenv (const char *name);
+# endif
+#endif
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _GL_STDLIB_H */
+#endif /* _GL_STDLIB_H */
+#endif
diff --git a/gl/strcase.h b/gl/strcase.h
deleted file mode 100644
index 07d4c9a4..00000000
--- a/gl/strcase.h
+++ /dev/null
@@ -1,56 +0,0 @@
-/* Case-insensitive string comparison functions.
-   Copyright (C) 1995-1996, 2001, 2003, 2005-2006 Free Software Foundation, Inc.
-
-   This program is free software; you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software Foundation,
-   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
-
-#ifndef _STRCASE_H
-#define _STRCASE_H
-
-#include <stddef.h>
-/* Include header files with a possibly conflicting declarations of strcasecmp
-   before we define it as a macro, so that they will be no-ops if included
-   after strcasecmp is defined as a macro.  */
-#include <string.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-
-/* No known system has a strcasecmp() function that works correctly in
-   multibyte locales.  Therefore we use our version always.  */
-#define strcasecmp rpl_strcasecmp
-/* Compare strings S1 and S2, ignoring case, returning less than, equal to or
-   greater than zero if S1 is lexicographically less than, equal to or greater
-   than S2.
-   Note: This function may, in multibyte locales, return 0 for strings of
-   different lengths!  */
-extern int strcasecmp (const char *s1, const char *s2);
-
-/* Compare no more than N characters of strings S1 and S2, ignoring case,
-   returning less than, equal to or greater than zero if S1 is
-   lexicographically less than, equal to or greater than S2.
-   Note: This function can not work correctly in multibyte locales.  */
-#if ! HAVE_DECL_STRNCASECMP
-extern int strncasecmp (const char *s1, const char *s2, size_t n);
-#endif
-
-
-#ifdef __cplusplus
-}
-#endif
-
-
-#endif /* _STRCASE_H */
diff --git a/gl/strcasecmp.c b/gl/strcasecmp.c
deleted file mode 100644
index 99d5dd22..00000000
--- a/gl/strcasecmp.c
+++ /dev/null
@@ -1,103 +0,0 @@
-/* Case-insensitive string comparison function.
-   Copyright (C) 1998-1999, 2005-2006 Free Software Foundation, Inc.
-   Written by Bruno Haible <bruno@clisp.org>, 2005,
-   based on earlier glibc code.
-
-   This program is free software; you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software Foundation,
-   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
-
-#include <config.h>
-
-/* Specification.  */
-#include "strcase.h"
-
-#include <ctype.h>
-#include <limits.h>
-
-#if HAVE_MBRTOWC
-# include "mbuiter.h"
-#endif
-
-#define TOLOWER(Ch) (isupper (Ch) ? tolower (Ch) : (Ch))
-
-/* Compare strings S1 and S2, ignoring case, returning less than, equal to or
-   greater than zero if S1 is lexicographically less than, equal to or greater
-   than S2.
-   Note: This function may, in multibyte locales, return 0 for strings of
-   different lengths!  */
-int
-strcasecmp (const char *s1, const char *s2)
-{
-  if (s1 == s2)
-    return 0;
-
-  /* Be careful not to look at the entire extent of s1 or s2 until needed.
-     This is useful because when two strings differ, the difference is
-     most often already in the very few first characters.  */
-#if HAVE_MBRTOWC
-  if (MB_CUR_MAX > 1)
-    {
-      mbui_iterator_t iter1;
-      mbui_iterator_t iter2;
-
-      mbui_init (iter1, s1);
-      mbui_init (iter2, s2);
-
-      while (mbui_avail (iter1) && mbui_avail (iter2))
-        {
-          int cmp = mb_casecmp (mbui_cur (iter1), mbui_cur (iter2));
-
-          if (cmp != 0)
-            return cmp;
-
-          mbui_advance (iter1);
-          mbui_advance (iter2);
-        }
-      if (mbui_avail (iter1))
-        /* s2 terminated before s1.  */
-        return 1;
-      if (mbui_avail (iter2))
-        /* s1 terminated before s2.  */
-        return -1;
-      return 0;
-    }
-  else
-#endif
-    {
-      const unsigned char *p1 = (const unsigned char *) s1;
-      const unsigned char *p2 = (const unsigned char *) s2;
-      unsigned char c1, c2;
-
-      do
-        {
-          c1 = TOLOWER (*p1);
-          c2 = TOLOWER (*p2);
-
-          if (c1 == '\0')
-            break;
-
-          ++p1;
-          ++p2;
-        }
-      while (c1 == c2);
-
-      if (UCHAR_MAX <= INT_MAX)
-        return c1 - c2;
-      else
-        /* On machines where 'char' and 'int' are types of the same size, the
-           difference of two 'unsigned char' values - including the sign bit -
-           doesn't fit in an 'int'.  */
-        return (c1 > c2 ? 1 : c1 < c2 ? -1 : 0);
-    }
-}
diff --git a/gl/strdup.c b/gl/strdup.c
index 17d40d62..bebe5c8f 100644
--- a/gl/strdup.c
+++ b/gl/strdup.c
@@ -1,11 +1,11 @@
-/* Copyright (C) 1991, 1996, 1997, 1998, 2002, 2003, 2004, 2006 Free
+/* Copyright (C) 1991, 1996, 1997, 1998, 2002, 2003, 2004, 2006, 2007 Free
    Software Foundation, Inc.
 
    This file is part of the GNU C Library.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
+   the Free Software Foundation; either version 3, or (at your option)
    any later version.
 
    This program is distributed in the hope that it will be useful,
@@ -19,13 +19,13 @@
 
 #ifndef _LIBC
 # include <config.h>
-/* Get specification.  */
-# include "strdup.h"
 #endif
 
-#include <stdlib.h>
+/* Get specification.  */
 #include <string.h>
 
+#include <stdlib.h>
+
 #undef __strdup
 #ifdef _LIBC
 # undef strdup
diff --git a/gl/strdup.h b/gl/strdup.h
deleted file mode 100644
index 73e66e3d..00000000
--- a/gl/strdup.h
+++ /dev/null
@@ -1,39 +0,0 @@
-/* strdup.h -- duplicate a string
-   Copyright (C) 2004, 2006 Free Software Foundation, Inc.
-
-   This program is free software; you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software Foundation,
-   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
-
-#ifndef STRDUP_H_
-#define STRDUP_H_
-
-/* Get strdup declaration, if available.  */
-#include <string.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-
-#if defined HAVE_DECL_STRDUP && !HAVE_DECL_STRDUP && !defined strdup
-/* Duplicate S, returning an identical malloc'd string.  */
-extern char *strdup (const char *s);
-#endif
-
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* STRDUP_H_ */
diff --git a/gl/strerror.c b/gl/strerror.c
new file mode 100644
index 00000000..9fe437db
--- /dev/null
+++ b/gl/strerror.c
@@ -0,0 +1,49 @@
+/* strerror.c --- POSIX compatible system error routine
+
+   Copyright (C) 2007 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#include <config.h>
+
+#include <string.h>
+
+#if REPLACE_STRERROR
+
+# include <stdio.h>
+
+# include "intprops.h"
+
+# undef strerror
+# if ! HAVE_DECL_STRERROR
+#  define strerror(n) NULL
+# endif
+
+char *
+rpl_strerror (int n)
+{
+  char *result = strerror (n);
+
+  if (result == NULL || result[0] == '\0')
+    {
+      static char const fmt[] = "Unknown error (%d)";
+      static char mesg[sizeof fmt + INT_STRLEN_BOUND (n)];
+      sprintf (mesg, fmt, n);
+      return mesg;
+    }
+
+  return result;
+}
+
+#endif
diff --git a/gl/string.in.h b/gl/string.in.h
new file mode 100644
index 00000000..5c7597ce
--- /dev/null
+++ b/gl/string.in.h
@@ -0,0 +1,569 @@
+/* A GNU-like <string.h>.
+
+   Copyright (C) 1995-1996, 2001-2008 Free Software Foundation, Inc.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+
+#ifndef _GL_STRING_H
+
+/* The include_next requires a split double-inclusion guard.  */
+#@INCLUDE_NEXT@ @NEXT_STRING_H@
+
+#ifndef _GL_STRING_H
+#define _GL_STRING_H
+
+
+#ifndef __attribute__
+/* This feature is available in gcc versions 2.5 and later.  */
+# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 5)
+#  define __attribute__(Spec) /* empty */
+# endif
+/* The attribute __pure__ was added in gcc 2.96.  */
+# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 96)
+#  define __pure__ /* empty */
+# endif
+#endif
+
+
+/* The definition of GL_LINK_WARNING is copied here.  */
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+/* Return the first occurrence of NEEDLE in HAYSTACK.  */
+#if @GNULIB_MEMMEM@
+# if @REPLACE_MEMMEM@
+#  define memmem rpl_memmem
+# endif
+# if ! @HAVE_DECL_MEMMEM@ || @REPLACE_MEMMEM@
+extern void *memmem (void const *__haystack, size_t __haystack_len,
+                     void const *__needle, size_t __needle_len)
+  __attribute__ ((__pure__));
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef memmem
+# define memmem(a,al,b,bl) \
+    (GL_LINK_WARNING ("memmem is unportable and often quadratic - " \
+                      "use gnulib module memmem-simple for portability, " \
+                      "and module memmem for speed" ), \
+     memmem (a, al, b, bl))
+#endif
+
+/* Copy N bytes of SRC to DEST, return pointer to bytes after the
+   last written byte.  */
+#if @GNULIB_MEMPCPY@
+# if ! @HAVE_MEMPCPY@
+extern void *mempcpy (void *restrict __dest, void const *restrict __src,
+                      size_t __n);
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef mempcpy
+# define mempcpy(a,b,n) \
+    (GL_LINK_WARNING ("mempcpy is unportable - " \
+                      "use gnulib module mempcpy for portability"), \
+     mempcpy (a, b, n))
+#endif
+
+/* Search backwards through a block for a byte (specified as an int).  */
+#if @GNULIB_MEMRCHR@
+# if ! @HAVE_DECL_MEMRCHR@
+extern void *memrchr (void const *, int, size_t)
+  __attribute__ ((__pure__));
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef memrchr
+# define memrchr(a,b,c) \
+    (GL_LINK_WARNING ("memrchr is unportable - " \
+                      "use gnulib module memrchr for portability"), \
+     memrchr (a, b, c))
+#endif
+
+/* Copy SRC to DST, returning the address of the terminating '\0' in DST.  */
+#if @GNULIB_STPCPY@
+# if ! @HAVE_STPCPY@
+extern char *stpcpy (char *restrict __dst, char const *restrict __src);
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef stpcpy
+# define stpcpy(a,b) \
+    (GL_LINK_WARNING ("stpcpy is unportable - " \
+                      "use gnulib module stpcpy for portability"), \
+     stpcpy (a, b))
+#endif
+
+/* Copy no more than N bytes of SRC to DST, returning a pointer past the
+   last non-NUL byte written into DST.  */
+#if @GNULIB_STPNCPY@
+# if ! @HAVE_STPNCPY@
+#  define stpncpy gnu_stpncpy
+extern char *stpncpy (char *restrict __dst, char const *restrict __src,
+                      size_t __n);
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef stpncpy
+# define stpncpy(a,b,n) \
+    (GL_LINK_WARNING ("stpncpy is unportable - " \
+                      "use gnulib module stpncpy for portability"), \
+     stpncpy (a, b, n))
+#endif
+
+#if defined GNULIB_POSIXCHECK
+/* strchr() does not work with multibyte strings if the locale encoding is
+   GB18030 and the character to be searched is a digit.  */
+# undef strchr
+# define strchr(s,c) \
+    (GL_LINK_WARNING ("strchr cannot work correctly on character strings " \
+                      "in some multibyte locales - " \
+                      "use mbschr if you care about internationalization"), \
+     strchr (s, c))
+#endif
+
+/* Find the first occurrence of C in S or the final NUL byte.  */
+#if @GNULIB_STRCHRNUL@
+# if ! @HAVE_STRCHRNUL@
+extern char *strchrnul (char const *__s, int __c_in)
+  __attribute__ ((__pure__));
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef strchrnul
+# define strchrnul(a,b) \
+    (GL_LINK_WARNING ("strchrnul is unportable - " \
+                      "use gnulib module strchrnul for portability"), \
+     strchrnul (a, b))
+#endif
+
+/* Duplicate S, returning an identical malloc'd string.  */
+#if @GNULIB_STRDUP@
+# if ! @HAVE_DECL_STRDUP@ && ! defined strdup
+extern char *strdup (char const *__s);
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef strdup
+# define strdup(a) \
+    (GL_LINK_WARNING ("strdup is unportable - " \
+                      "use gnulib module strdup for portability"), \
+     strdup (a))
+#endif
+
+/* Return a newly allocated copy of at most N bytes of STRING.  */
+#if @GNULIB_STRNDUP@
+# if ! @HAVE_STRNDUP@
+#  undef strndup
+#  define strndup rpl_strndup
+# endif
+# if ! @HAVE_STRNDUP@ || ! @HAVE_DECL_STRNDUP@
+extern char *strndup (char const *__string, size_t __n);
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef strndup
+# define strndup(a,n) \
+    (GL_LINK_WARNING ("strndup is unportable - " \
+                      "use gnulib module strndup for portability"), \
+     strndup (a, n))
+#endif
+
+/* Find the length (number of bytes) of STRING, but scan at most
+   MAXLEN bytes.  If no '\0' terminator is found in that many bytes,
+   return MAXLEN.  */
+#if @GNULIB_STRNLEN@
+# if ! @HAVE_DECL_STRNLEN@
+extern size_t strnlen (char const *__string, size_t __maxlen)
+  __attribute__ ((__pure__));
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef strnlen
+# define strnlen(a,n) \
+    (GL_LINK_WARNING ("strnlen is unportable - " \
+                      "use gnulib module strnlen for portability"), \
+     strnlen (a, n))
+#endif
+
+#if defined GNULIB_POSIXCHECK
+/* strcspn() assumes the second argument is a list of single-byte characters.
+   Even in this simple case, it does not work with multibyte strings if the
+   locale encoding is GB18030 and one of the characters to be searched is a
+   digit.  */
+# undef strcspn
+# define strcspn(s,a) \
+    (GL_LINK_WARNING ("strcspn cannot work correctly on character strings " \
+                      "in multibyte locales - " \
+                      "use mbscspn if you care about internationalization"), \
+     strcspn (s, a))
+#endif
+
+/* Find the first occurrence in S of any character in ACCEPT.  */
+#if @GNULIB_STRPBRK@
+# if ! @HAVE_STRPBRK@
+extern char *strpbrk (char const *__s, char const *__accept)
+  __attribute__ ((__pure__));
+# endif
+# if defined GNULIB_POSIXCHECK
+/* strpbrk() assumes the second argument is a list of single-byte characters.
+   Even in this simple case, it does not work with multibyte strings if the
+   locale encoding is GB18030 and one of the characters to be searched is a
+   digit.  */
+#  undef strpbrk
+#  define strpbrk(s,a) \
+     (GL_LINK_WARNING ("strpbrk cannot work correctly on character strings " \
+                       "in multibyte locales - " \
+                       "use mbspbrk if you care about internationalization"), \
+      strpbrk (s, a))
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef strpbrk
+# define strpbrk(s,a) \
+    (GL_LINK_WARNING ("strpbrk is unportable - " \
+                      "use gnulib module strpbrk for portability"), \
+     strpbrk (s, a))
+#endif
+
+#if defined GNULIB_POSIXCHECK
+/* strspn() assumes the second argument is a list of single-byte characters.
+   Even in this simple case, it cannot work with multibyte strings.  */
+# undef strspn
+# define strspn(s,a) \
+    (GL_LINK_WARNING ("strspn cannot work correctly on character strings " \
+                      "in multibyte locales - " \
+                      "use mbsspn if you care about internationalization"), \
+     strspn (s, a))
+#endif
+
+#if defined GNULIB_POSIXCHECK
+/* strrchr() does not work with multibyte strings if the locale encoding is
+   GB18030 and the character to be searched is a digit.  */
+# undef strrchr
+# define strrchr(s,c) \
+    (GL_LINK_WARNING ("strrchr cannot work correctly on character strings " \
+                      "in some multibyte locales - " \
+                      "use mbsrchr if you care about internationalization"), \
+     strrchr (s, c))
+#endif
+
+/* Search the next delimiter (char listed in DELIM) starting at *STRINGP.
+   If one is found, overwrite it with a NUL, and advance *STRINGP
+   to point to the next char after it.  Otherwise, set *STRINGP to NULL.
+   If *STRINGP was already NULL, nothing happens.
+   Return the old value of *STRINGP.
+
+   This is a variant of strtok() that is multithread-safe and supports
+   empty fields.
+
+   Caveat: It modifies the original string.
+   Caveat: These functions cannot be used on constant strings.
+   Caveat: The identity of the delimiting character is lost.
+   Caveat: It doesn't work with multibyte strings unless all of the delimiter
+           characters are ASCII characters < 0x30.
+
+   See also strtok_r().  */
+#if @GNULIB_STRSEP@
+# if ! @HAVE_STRSEP@
+extern char *strsep (char **restrict __stringp, char const *restrict __delim);
+# endif
+# if defined GNULIB_POSIXCHECK
+#  undef strsep
+#  define strsep(s,d) \
+     (GL_LINK_WARNING ("strsep cannot work correctly on character strings " \
+                       "in multibyte locales - " \
+                       "use mbssep if you care about internationalization"), \
+      strsep (s, d))
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef strsep
+# define strsep(s,d) \
+    (GL_LINK_WARNING ("strsep is unportable - " \
+                      "use gnulib module strsep for portability"), \
+     strsep (s, d))
+#endif
+
+#if @GNULIB_STRSTR@
+# if @REPLACE_STRSTR@
+#  define strstr rpl_strstr
+char *strstr (const char *haystack, const char *needle)
+  __attribute__ ((__pure__));
+# endif
+#elif defined GNULIB_POSIXCHECK
+/* strstr() does not work with multibyte strings if the locale encoding is
+   different from UTF-8:
+   POSIX says that it operates on "strings", and "string" in POSIX is defined
+   as a sequence of bytes, not of characters.  */
+# undef strstr
+# define strstr(a,b) \
+    (GL_LINK_WARNING ("strstr is quadratic on many systems, and cannot " \
+                      "work correctly on character strings in most "    \
+                      "multibyte locales - " \
+                      "use mbsstr if you care about internationalization, " \
+                      "or use strstr if you care about speed"), \
+     strstr (a, b))
+#endif
+
+/* Find the first occurrence of NEEDLE in HAYSTACK, using case-insensitive
+   comparison.  */
+#if @GNULIB_STRCASESTR@
+# if @REPLACE_STRCASESTR@
+#  define strcasestr rpl_strcasestr
+# endif
+# if ! @HAVE_STRCASESTR@ || @REPLACE_STRCASESTR@
+extern char *strcasestr (const char *haystack, const char *needle)
+  __attribute__ ((__pure__));
+# endif
+#elif defined GNULIB_POSIXCHECK
+/* strcasestr() does not work with multibyte strings:
+   It is a glibc extension, and glibc implements it only for unibyte
+   locales.  */
+# undef strcasestr
+# define strcasestr(a,b) \
+    (GL_LINK_WARNING ("strcasestr does work correctly on character strings " \
+                      "in multibyte locales - " \
+                      "use mbscasestr if you care about " \
+                      "internationalization, or use c-strcasestr if you want " \
+                      "a locale independent function"), \
+     strcasestr (a, b))
+#endif
+
+/* Parse S into tokens separated by characters in DELIM.
+   If S is NULL, the saved pointer in SAVE_PTR is used as
+   the next starting point.  For example:
+        char s[] = "-abc-=-def";
+        char *sp;
+        x = strtok_r(s, "-", &sp);      // x = "abc", sp = "=-def"
+        x = strtok_r(NULL, "-=", &sp);  // x = "def", sp = NULL
+        x = strtok_r(NULL, "=", &sp);   // x = NULL
+                // s = "abc\0-def\0"
+
+   This is a variant of strtok() that is multithread-safe.
+
+   For the POSIX documentation for this function, see:
+   http://www.opengroup.org/susv3xsh/strtok.html
+
+   Caveat: It modifies the original string.
+   Caveat: These functions cannot be used on constant strings.
+   Caveat: The identity of the delimiting character is lost.
+   Caveat: It doesn't work with multibyte strings unless all of the delimiter
+           characters are ASCII characters < 0x30.
+
+   See also strsep().  */
+#if @GNULIB_STRTOK_R@
+# if ! @HAVE_DECL_STRTOK_R@
+extern char *strtok_r (char *restrict s, char const *restrict delim,
+                       char **restrict save_ptr);
+# endif
+# if defined GNULIB_POSIXCHECK
+#  undef strtok_r
+#  define strtok_r(s,d,p) \
+     (GL_LINK_WARNING ("strtok_r cannot work correctly on character strings " \
+                       "in multibyte locales - " \
+                       "use mbstok_r if you care about internationalization"), \
+      strtok_r (s, d, p))
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef strtok_r
+# define strtok_r(s,d,p) \
+    (GL_LINK_WARNING ("strtok_r is unportable - " \
+                      "use gnulib module strtok_r for portability"), \
+     strtok_r (s, d, p))
+#endif
+
+
+/* The following functions are not specified by POSIX.  They are gnulib
+   extensions.  */
+
+#if @GNULIB_MBSLEN@
+/* Return the number of multibyte characters in the character string STRING.
+   This considers multibyte characters, unlike strlen, which counts bytes.  */
+extern size_t mbslen (const char *string);
+#endif
+
+#if @GNULIB_MBSNLEN@
+/* Return the number of multibyte characters in the character string starting
+   at STRING and ending at STRING + LEN.  */
+extern size_t mbsnlen (const char *string, size_t len);
+#endif
+
+#if @GNULIB_MBSCHR@
+/* Locate the first single-byte character C in the character string STRING,
+   and return a pointer to it.  Return NULL if C is not found in STRING.
+   Unlike strchr(), this function works correctly in multibyte locales with
+   encodings such as GB18030.  */
+# define mbschr rpl_mbschr /* avoid collision with HP-UX function */
+extern char * mbschr (const char *string, int c);
+#endif
+
+#if @GNULIB_MBSRCHR@
+/* Locate the last single-byte character C in the character string STRING,
+   and return a pointer to it.  Return NULL if C is not found in STRING.
+   Unlike strrchr(), this function works correctly in multibyte locales with
+   encodings such as GB18030.  */
+# define mbsrchr rpl_mbsrchr /* avoid collision with HP-UX function */
+extern char * mbsrchr (const char *string, int c);
+#endif
+
+#if @GNULIB_MBSSTR@
+/* Find the first occurrence of the character string NEEDLE in the character
+   string HAYSTACK.  Return NULL if NEEDLE is not found in HAYSTACK.
+   Unlike strstr(), this function works correctly in multibyte locales with
+   encodings different from UTF-8.  */
+extern char * mbsstr (const char *haystack, const char *needle);
+#endif
+
+#if @GNULIB_MBSCASECMP@
+/* Compare the character strings S1 and S2, ignoring case, returning less than,
+   equal to or greater than zero if S1 is lexicographically less than, equal to
+   or greater than S2.
+   Note: This function may, in multibyte locales, return 0 for strings of
+   different lengths!
+   Unlike strcasecmp(), this function works correctly in multibyte locales.  */
+extern int mbscasecmp (const char *s1, const char *s2);
+#endif
+
+#if @GNULIB_MBSNCASECMP@
+/* Compare the initial segment of the character string S1 consisting of at most
+   N characters with the initial segment of the character string S2 consisting
+   of at most N characters, ignoring case, returning less than, equal to or
+   greater than zero if the initial segment of S1 is lexicographically less
+   than, equal to or greater than the initial segment of S2.
+   Note: This function may, in multibyte locales, return 0 for initial segments
+   of different lengths!
+   Unlike strncasecmp(), this function works correctly in multibyte locales.
+   But beware that N is not a byte count but a character count!  */
+extern int mbsncasecmp (const char *s1, const char *s2, size_t n);
+#endif
+
+#if @GNULIB_MBSPCASECMP@
+/* Compare the initial segment of the character string STRING consisting of
+   at most mbslen (PREFIX) characters with the character string PREFIX,
+   ignoring case, returning less than, equal to or greater than zero if this
+   initial segment is lexicographically less than, equal to or greater than
+   PREFIX.
+   Note: This function may, in multibyte locales, return 0 if STRING is of
+   smaller length than PREFIX!
+   Unlike strncasecmp(), this function works correctly in multibyte
+   locales.  */
+extern char * mbspcasecmp (const char *string, const char *prefix);
+#endif
+
+#if @GNULIB_MBSCASESTR@
+/* Find the first occurrence of the character string NEEDLE in the character
+   string HAYSTACK, using case-insensitive comparison.
+   Note: This function may, in multibyte locales, return success even if
+   strlen (haystack) < strlen (needle) !
+   Unlike strcasestr(), this function works correctly in multibyte locales.  */
+extern char * mbscasestr (const char *haystack, const char *needle);
+#endif
+
+#if @GNULIB_MBSCSPN@
+/* Find the first occurrence in the character string STRING of any character
+   in the character string ACCEPT.  Return the number of bytes from the
+   beginning of the string to this occurrence, or to the end of the string
+   if none exists.
+   Unlike strcspn(), this function works correctly in multibyte locales.  */
+extern size_t mbscspn (const char *string, const char *accept);
+#endif
+
+#if @GNULIB_MBSPBRK@
+/* Find the first occurrence in the character string STRING of any character
+   in the character string ACCEPT.  Return the pointer to it, or NULL if none
+   exists.
+   Unlike strpbrk(), this function works correctly in multibyte locales.  */
+# define mbspbrk rpl_mbspbrk /* avoid collision with HP-UX function */
+extern char * mbspbrk (const char *string, const char *accept);
+#endif
+
+#if @GNULIB_MBSSPN@
+/* Find the first occurrence in the character string STRING of any character
+   not in the character string REJECT.  Return the number of bytes from the
+   beginning of the string to this occurrence, or to the end of the string
+   if none exists.
+   Unlike strspn(), this function works correctly in multibyte locales.  */
+extern size_t mbsspn (const char *string, const char *reject);
+#endif
+
+#if @GNULIB_MBSSEP@
+/* Search the next delimiter (multibyte character listed in the character
+   string DELIM) starting at the character string *STRINGP.
+   If one is found, overwrite it with a NUL, and advance *STRINGP to point
+   to the next multibyte character after it.  Otherwise, set *STRINGP to NULL.
+   If *STRINGP was already NULL, nothing happens.
+   Return the old value of *STRINGP.
+
+   This is a variant of mbstok_r() that supports empty fields.
+
+   Caveat: It modifies the original string.
+   Caveat: These functions cannot be used on constant strings.
+   Caveat: The identity of the delimiting character is lost.
+
+   See also mbstok_r().  */
+extern char * mbssep (char **stringp, const char *delim);
+#endif
+
+#if @GNULIB_MBSTOK_R@
+/* Parse the character string STRING into tokens separated by characters in
+   the character string DELIM.
+   If STRING is NULL, the saved pointer in SAVE_PTR is used as
+   the next starting point.  For example:
+        char s[] = "-abc-=-def";
+        char *sp;
+        x = mbstok_r(s, "-", &sp);      // x = "abc", sp = "=-def"
+        x = mbstok_r(NULL, "-=", &sp);  // x = "def", sp = NULL
+        x = mbstok_r(NULL, "=", &sp);   // x = NULL
+                // s = "abc\0-def\0"
+
+   Caveat: It modifies the original string.
+   Caveat: These functions cannot be used on constant strings.
+   Caveat: The identity of the delimiting character is lost.
+
+   See also mbssep().  */
+extern char * mbstok_r (char *string, const char *delim, char **save_ptr);
+#endif
+
+/* Map any int, typically from errno, into an error message.  */
+#if @GNULIB_STRERROR@
+# if @REPLACE_STRERROR@
+#  undef strerror
+#  define strerror rpl_strerror
+extern char *strerror (int);
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef strerror
+# define strerror(e) \
+    (GL_LINK_WARNING ("strerror is unportable - " \
+                      "use gnulib module strerror to guarantee non-NULL result"), \
+     strerror (e))
+#endif
+
+#if @GNULIB_STRSIGNAL@
+# if @REPLACE_STRSIGNAL@
+#  define strsignal rpl_strsignal
+# endif
+# if ! @HAVE_DECL_STRSIGNAL@ || @REPLACE_STRSIGNAL@
+extern char *strsignal (int __sig);
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef strsignal
+# define strsignal(a) \
+    (GL_LINK_WARNING ("strsignal is unportable - " \
+                      "use gnulib module strsignal for portability"), \
+     strsignal (a))
+#endif
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _GL_STRING_H */
+#endif /* _GL_STRING_H */
diff --git a/gl/stripslash.c b/gl/stripslash.c
index 342d497c..40844102 100644
--- a/gl/stripslash.c
+++ b/gl/stripslash.c
@@ -2,10 +2,10 @@
 
    Copyright (C) 1990, 2001, 2003-2006 Free Software Foundation, Inc.
 
-   This program is free software; you can redistribute it and/or modify
+   This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -13,8 +13,7 @@
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software Foundation,
-   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/gl/strncasecmp.c b/gl/strncasecmp.c
deleted file mode 100644
index f59b953a..00000000
--- a/gl/strncasecmp.c
+++ /dev/null
@@ -1,63 +0,0 @@
-/* strncasecmp.c -- case insensitive string comparator
-   Copyright (C) 1998-1999, 2005-2006 Free Software Foundation, Inc.
-
-   This program is free software; you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software Foundation,
-   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
-
-#include <config.h>
-
-/* Specification.  */
-#include "strcase.h"
-
-#include <ctype.h>
-#include <limits.h>
-
-#define TOLOWER(Ch) (isupper (Ch) ? tolower (Ch) : (Ch))
-
-/* Compare no more than N bytes of strings S1 and S2,
-   ignoring case, returning less than, equal to or
-   greater than zero if S1 is lexicographically less
-   than, equal to or greater than S2.  */
-
-int
-strncasecmp (const char *s1, const char *s2, size_t n)
-{
-  register const unsigned char *p1 = (const unsigned char *) s1;
-  register const unsigned char *p2 = (const unsigned char *) s2;
-  unsigned char c1, c2;
-
-  if (p1 == p2 || n == 0)
-    return 0;
-
-  do
-    {
-      c1 = TOLOWER (*p1);
-      c2 = TOLOWER (*p2);
-
-      if (--n == 0 || c1 == '\0')
-        break;
-
-      ++p1;
-      ++p2;
-    }
-  while (c1 == c2);
-
-  if (UCHAR_MAX <= INT_MAX)
-    return c1 - c2;
-  else
-    /* On machines where 'char' and 'int' are types of the same size, the
-       difference of two 'unsigned char' values - including the sign bit -
-       doesn't fit in an 'int'.  */
-    return (c1 > c2 ? 1 : c1 < c2 ? -1 : 0);
-}
diff --git a/gl/strndup.c b/gl/strndup.c
index 290f494f..507e9c06 100644
--- a/gl/strndup.c
+++ b/gl/strndup.c
@@ -1,11 +1,11 @@
 /* A replacement function, for systems that lack strndup.
 
-   Copyright (C) 1996, 1997, 1998, 2001, 2002, 2003, 2005, 2006 Free
-   Software Foundation, Inc.
+   Copyright (C) 1996, 1997, 1998, 2001, 2002, 2003, 2005, 2006, 2007
+   Free Software Foundation, Inc.
 
    This program is free software; you can redistribute it and/or modify it
    under the terms of the GNU General Public License as published by the
-   Free Software Foundation; either version 2, or (at your option) any
+   Free Software Foundation; either version 3, or (at your option) any
    later version.
 
    This program is distributed in the hope that it will be useful,
@@ -18,12 +18,10 @@
    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
 
 #include <config.h>
-#include "strndup.h"
 
-#include <stdlib.h>
 #include <string.h>
 
-#include "strnlen.h"
+#include <stdlib.h>
 
 char *
 strndup (char const *s, size_t n)
diff --git a/gl/strndup.h b/gl/strndup.h
deleted file mode 100644
index b983dd22..00000000
--- a/gl/strndup.h
+++ /dev/null
@@ -1,32 +0,0 @@
-/* Duplicate a size-bounded string.
-   Copyright (C) 2003, 2006 Free Software Foundation, Inc.
-
-   This program is free software; you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software Foundation,
-   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
-
-/* Get size_t.  */
-#include <stddef.h>
-/* If HAVE_STRNDUP, get the strndup declaration.
-   If !HAVE_STRNDUP, include <string.h> now so that it doesn't cause
-   trouble if included later.  */
-#include <string.h>
-
-#if !HAVE_STRNDUP
-# undef strndup
-# define strndup rpl_strndup
-# if !HAVE_DECL_STRNDUP  /* Don't risk conflicting declarations.  */
-/* Return a newly allocated copy of at most N bytes of STRING.  */
-extern char *strndup (const char *string, size_t n);
-# endif
-#endif
diff --git a/gl/strnlen.c b/gl/strnlen.c
index 593fd1b7..93d1ac14 100644
--- a/gl/strnlen.c
+++ b/gl/strnlen.c
@@ -1,10 +1,10 @@
 /* Find the length of STRING, but scan at most MAXLEN characters.
-   Copyright (C) 2005, 2006 Free Software Foundation, Inc.
+   Copyright (C) 2005, 2006, 2007 Free Software Foundation, Inc.
    Written by Simon Josefsson.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
+   the Free Software Foundation; either version 3, or (at your option)
    any later version.
 
    This program is distributed in the hope that it will be useful,
@@ -18,7 +18,7 @@
 
 #include <config.h>
 
-#include "strnlen.h"
+#include <string.h>
 
 /* Find the length of STRING, but scan at most MAXLEN characters.
    If no '\0' terminator is found in that many characters, return MAXLEN.  */
diff --git a/gl/strnlen.h b/gl/strnlen.h
deleted file mode 100644
index ba74dba7..00000000
--- a/gl/strnlen.h
+++ /dev/null
@@ -1,32 +0,0 @@
-/* Find the length of STRING, but scan at most MAXLEN characters.
-   Copyright (C) 2005 Free Software Foundation, Inc.
-   Written by Simon Josefsson.
-
-   This program is free software; you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software Foundation,
-   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
-
-#ifndef STRNLEN_H
-#define STRNLEN_H
-
-/* Get strnlen declaration, if available.  */
-#include <string.h>
-
-#if defined HAVE_DECL_STRNLEN && !HAVE_DECL_STRNLEN
-/* Find the length (number of bytes) of STRING, but scan at most
-   MAXLEN bytes.  If no '\0' terminator is found in that many bytes,
-   return MAXLEN.  */
-extern size_t strnlen(const char *string, size_t maxlen);
-#endif
-
-#endif /* STRNLEN_H */
diff --git a/gl/strnlen1.c b/gl/strnlen1.c
deleted file mode 100644
index 422ed9e8..00000000
--- a/gl/strnlen1.c
+++ /dev/null
@@ -1,36 +0,0 @@
-/* Find the length of STRING + 1, but scan at most MAXLEN bytes.
-   Copyright (C) 2005-2006 Free Software Foundation, Inc.
-
-   This program is free software; you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software Foundation,
-   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
-
-#include <config.h>
-
-/* Specification.  */
-#include "strnlen1.h"
-
-#include <string.h>
-
-/* Find the length of STRING + 1, but scan at most MAXLEN bytes.
-   If no '\0' terminator is found in that many characters, return MAXLEN.  */
-/* This is the same as strnlen (string, maxlen - 1) + 1.  */
-size_t
-strnlen1 (const char *string, size_t maxlen)
-{
-  const char *end = (const char *) memchr (string, '\0', maxlen);
-  if (end != NULL)
-    return end - string + 1;
-  else
-    return maxlen;
-}
diff --git a/gl/socket_.h b/gl/sys_socket.in.h
index 8b28b5ed..5e0b097d 100644
--- a/gl/socket_.h
+++ b/gl/sys_socket.in.h
@@ -1,10 +1,10 @@
 /* Provide a sys/socket header file for systems lacking it (read: MinGW).
-   Copyright (C) 2005, 2006 Free Software Foundation, Inc.
+   Copyright (C) 2005, 2006, 2007 Free Software Foundation, Inc.
    Written by Simon Josefsson.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
+   the Free Software Foundation; either version 3, or (at your option)
    any later version.
 
    This program is distributed in the hope that it will be useful,
@@ -16,12 +16,30 @@
    along with this program; if not, write to the Free Software Foundation,
    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
 
-#ifndef _SYS_SOCKET_H
-#define _SYS_SOCKET_H
+/* This file is supposed to be used on platforms that lack <sys/socket.h>
+   and on platforms where <sys/socket.h> cannot be included standalone.
+   It is intended to provide definitions and prototypes needed by an
+   application.  */
 
-/* This file is supposed to be used on platforms that lack
-   sys/socket.h.  It is intended to provide definitions and prototypes
-   needed by an application.
+#ifndef _GL_SYS_SOCKET_H
+
+#if @HAVE_SYS_SOCKET_H@
+
+/* On many platforms, <sys/socket.h> assumes prior inclusion of
+   <sys/types.h>.  */
+# include <sys/types.h>
+
+/* The include_next requires a split double-inclusion guard.  */
+# @INCLUDE_NEXT@ @NEXT_SYS_SOCKET_H@
+
+#endif
+
+#ifndef _GL_SYS_SOCKET_H
+#define _GL_SYS_SOCKET_H
+
+#if !@HAVE_SYS_SOCKET_H@
+
+/* A platform that lacks <sys/socket.h>.
 
    Currently only MinGW is supported.  See the gnulib manual regarding
    Windows sockets.  MinGW has the header files winsock2.h and
@@ -39,32 +57,35 @@
    releases. */
 
 
-#if HAVE_WINSOCK2_H
-# include <winsock2.h>
-#endif
-#if HAVE_WS2TCPIP_H
-# include <ws2tcpip.h>
-#endif
+# if @HAVE_WINSOCK2_H@
+#  include <winsock2.h>
+# endif
+# if @HAVE_WS2TCPIP_H@
+#  include <ws2tcpip.h>
+# endif
 
 /* For shutdown(). */
-#if !defined SHUT_RD && defined SD_RECEIVE
-# define SHUT_RD SD_RECEIVE
-#endif
-#if !defined SHUT_WR && defined SD_SEND
-# define SHUT_WR SD_SEND
-#endif
-#if !defined SHUT_RDWR && defined SD_BOTH
-# define SHUT_RDWR SD_BOTH
-#endif
+# if !defined SHUT_RD && defined SD_RECEIVE
+#  define SHUT_RD SD_RECEIVE
+# endif
+# if !defined SHUT_WR && defined SD_SEND
+#  define SHUT_WR SD_SEND
+# endif
+# if !defined SHUT_RDWR && defined SD_BOTH
+#  define SHUT_RDWR SD_BOTH
+# endif
 
-#if defined _WIN32 || defined __WIN32__
-# define ENOTSOCK                WSAENOTSOCK
-# define EADDRINUSE              WSAEADDRINUSE
-# define ENETRESET               WSAENETRESET
-# define ECONNABORTED            WSAECONNABORTED
-# define ECONNRESET              WSAECONNRESET
-# define ENOTCONN                WSAENOTCONN
-# define ESHUTDOWN               WSAESHUTDOWN
-#endif
+# if defined _WIN32 || defined __WIN32__
+#  define ENOTSOCK                WSAENOTSOCK
+#  define EADDRINUSE              WSAEADDRINUSE
+#  define ENETRESET               WSAENETRESET
+#  define ECONNABORTED            WSAECONNABORTED
+#  define ECONNRESET              WSAECONNRESET
+#  define ENOTCONN                WSAENOTCONN
+#  define ESHUTDOWN               WSAESHUTDOWN
+# endif
+
+#endif /* HAVE_SYS_SOCKET_H */
 
-#endif /* _SYS_SOCKET_H */
+#endif /* _GL_SYS_SOCKET_H */
+#endif /* _GL_SYS_SOCKET_H */
diff --git a/gl/unistd--.h b/gl/unistd--.h
index 1fe6ce8b..1a7fd785 100644
--- a/gl/unistd--.h
+++ b/gl/unistd--.h
@@ -2,10 +2,10 @@
 
    Copyright (C) 2005 Free Software Foundation, Inc.
 
-   This program is free software; you can redistribute it and/or modify
+   This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -13,8 +13,7 @@
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software Foundation,
-   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 /* Written by Paul Eggert.  */
 
diff --git a/gl/unistd-safer.h b/gl/unistd-safer.h
index f95999d3..033e857d 100644
--- a/gl/unistd-safer.h
+++ b/gl/unistd-safer.h
@@ -2,10 +2,10 @@
 
    Copyright (C) 2001, 2003, 2005 Free Software Foundation, Inc.
 
-   This program is free software; you can redistribute it and/or modify
+   This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -13,8 +13,7 @@
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software Foundation,
-   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 /* Written by Paul Eggert.  */
 
diff --git a/gl/unistd.in.h b/gl/unistd.in.h
new file mode 100644
index 00000000..a5dc04c9
--- /dev/null
+++ b/gl/unistd.in.h
@@ -0,0 +1,320 @@
+/* Substitute for and wrapper around <unistd.h>.
+   Copyright (C) 2004-2007 Free Software Foundation, Inc.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+
+#ifndef _GL_UNISTD_H
+
+/* The include_next requires a split double-inclusion guard.  */
+#if @HAVE_UNISTD_H@
+# @INCLUDE_NEXT@ @NEXT_UNISTD_H@
+#endif
+
+#ifndef _GL_UNISTD_H
+#define _GL_UNISTD_H
+
+/* mingw doesn't define the SEEK_* macros in <unistd.h>.  */
+#if !(defined SEEK_CUR && defined SEEK_END && defined SEEK_SET)
+# include <stdio.h>
+#endif
+
+/* mingw fails to declare _exit in <unistd.h>.  */
+#include <stdlib.h>
+
+/* The definition of GL_LINK_WARNING is copied here.  */
+
+
+/* Declare overridden functions.  */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+#if @GNULIB_CHOWN@
+# if @REPLACE_CHOWN@
+#  ifndef REPLACE_CHOWN
+#   define REPLACE_CHOWN 1
+#  endif
+#  if REPLACE_CHOWN
+/* Change the owner of FILE to UID (if UID is not -1) and the group of FILE
+   to GID (if GID is not -1).  Follow symbolic links.
+   Return 0 if successful, otherwise -1 and errno set.
+   See the POSIX:2001 specification
+   <http://www.opengroup.org/susv3xsh/chown.html>.  */
+#   define chown rpl_chown
+extern int chown (const char *file, uid_t uid, gid_t gid);
+#  endif
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef chown
+# define chown(f,u,g) \
+    (GL_LINK_WARNING ("chown fails to follow symlinks on some systems and " \
+                      "doesn't treat a uid or gid of -1 on some systems - " \
+                      "use gnulib module chown for portability"), \
+     chown (f, u, g))
+#endif
+
+
+#if @GNULIB_DUP2@
+# if !@HAVE_DUP2@
+/* Copy the file descriptor OLDFD into file descriptor NEWFD.  Do nothing if
+   NEWFD = OLDFD, otherwise close NEWFD first if it is open.
+   Return 0 if successful, otherwise -1 and errno set.
+   See the POSIX:2001 specification
+   <http://www.opengroup.org/susv3xsh/dup2.html>.  */
+extern int dup2 (int oldfd, int newfd);
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef dup2
+# define dup2(o,n) \
+    (GL_LINK_WARNING ("dup2 is unportable - " \
+                      "use gnulib module dup2 for portability"), \
+     dup2 (o, n))
+#endif
+
+
+#if @GNULIB_FCHDIR@
+# if @REPLACE_FCHDIR@
+
+/* Change the process' current working directory to the directory on which
+   the given file descriptor is open.
+   Return 0 if successful, otherwise -1 and errno set.
+   See the POSIX:2001 specification
+   <http://www.opengroup.org/susv3xsh/fchdir.html>.  */
+extern int fchdir (int /*fd*/);
+
+#  define close rpl_close
+extern int close (int);
+#  define dup rpl_dup
+extern int dup (int);
+#  define dup2 rpl_dup2
+extern int dup2 (int, int);
+
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef fchdir
+# define fchdir(f) \
+    (GL_LINK_WARNING ("fchdir is unportable - " \
+                      "use gnulib module fchdir for portability"), \
+     fchdir (f))
+#endif
+
+
+#if @GNULIB_FTRUNCATE@
+# if !@HAVE_FTRUNCATE@
+/* Change the size of the file to which FD is opened to become equal to LENGTH.
+   Return 0 if successful, otherwise -1 and errno set.
+   See the POSIX:2001 specification
+   <http://www.opengroup.org/susv3xsh/ftruncate.html>.  */
+extern int ftruncate (int fd, off_t length);
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef ftruncate
+# define ftruncate(f,l) \
+    (GL_LINK_WARNING ("ftruncate is unportable - " \
+                      "use gnulib module ftruncate for portability"), \
+     ftruncate (f, l))
+#endif
+
+
+#if @GNULIB_GETCWD@
+/* Include the headers that might declare getcwd so that they will not
+   cause confusion if included after this file.  */
+# include <stdlib.h>
+# if @REPLACE_GETCWD@
+/* Get the name of the current working directory, and put it in SIZE bytes
+   of BUF.
+   Return BUF if successful, or NULL if the directory couldn't be determined
+   or SIZE was too small.
+   See the POSIX:2001 specification
+   <http://www.opengroup.org/susv3xsh/getcwd.html>.
+   Additionally, the gnulib module 'getcwd' guarantees the following GNU
+   extension: If BUF is NULL, an array is allocated with 'malloc'; the array
+   is SIZE bytes long, unless SIZE == 0, in which case it is as big as
+   necessary.  */
+#  define getcwd rpl_getcwd
+extern char * getcwd (char *buf, size_t size);
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef getcwd
+# define getcwd(b,s) \
+    (GL_LINK_WARNING ("getcwd is unportable - " \
+                      "use gnulib module getcwd for portability"), \
+     getcwd (b, s))
+#endif
+
+
+#if @GNULIB_GETLOGIN_R@
+/* Copies the user's login name to NAME.
+   The array pointed to by NAME has room for SIZE bytes.
+
+   Returns 0 if successful.  Upon error, an error number is returned, or -1 in
+   the case that the login name cannot be found but no specific error is
+   provided (this case is hopefully rare but is left open by the POSIX spec).
+
+   See <http://www.opengroup.org/susv3xsh/getlogin.html>.
+ */
+# if !@HAVE_DECL_GETLOGIN_R@
+#  include <stddef.h>
+extern int getlogin_r (char *name, size_t size);
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef getlogin_r
+# define getlogin_r(n,s) \
+    (GL_LINK_WARNING ("getlogin_r is unportable - " \
+                      "use gnulib module getlogin_r for portability"), \
+     getlogin_r (n, s))
+#endif
+
+
+#if @GNULIB_GETPAGESIZE@
+# if @REPLACE_GETPAGESIZE@
+#  define getpagesize rpl_getpagesize
+extern int getpagesize (void);
+# elif !@HAVE_GETPAGESIZE@
+/* This is for POSIX systems.  */
+#  if !defined getpagesize && defined _SC_PAGESIZE
+#   if ! (defined __VMS && __VMS_VER < 70000000)
+#    define getpagesize() sysconf (_SC_PAGESIZE)
+#   endif
+#  endif
+/* This is for older VMS.  */
+#  if !defined getpagesize && defined __VMS
+#   ifdef __ALPHA
+#    define getpagesize() 8192
+#   else
+#    define getpagesize() 512
+#   endif
+#  endif
+/* This is for BeOS.  */
+#  if !defined getpagesize && @HAVE_OS_H@
+#   include <OS.h>
+#   if defined B_PAGE_SIZE
+#    define getpagesize() B_PAGE_SIZE
+#   endif
+#  endif
+/* This is for AmigaOS4.0.  */
+#  if !defined getpagesize && defined __amigaos4__
+#   define getpagesize() 2048
+#  endif
+/* This is for older Unix systems.  */
+#  if !defined getpagesize && @HAVE_SYS_PARAM_H@
+#   include <sys/param.h>
+#   ifdef EXEC_PAGESIZE
+#    define getpagesize() EXEC_PAGESIZE
+#   else
+#    ifdef NBPG
+#     ifndef CLSIZE
+#      define CLSIZE 1
+#     endif
+#     define getpagesize() (NBPG * CLSIZE)
+#    else
+#     ifdef NBPC
+#      define getpagesize() NBPC
+#     endif
+#    endif
+#   endif
+#  endif
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef getpagesize
+# define getpagesize() \
+    (GL_LINK_WARNING ("getpagesize is unportable - " \
+                      "use gnulib module getpagesize for portability"), \
+     getpagesize ())
+#endif
+
+
+#if @GNULIB_LCHOWN@
+# if @REPLACE_LCHOWN@
+/* Change the owner of FILE to UID (if UID is not -1) and the group of FILE
+   to GID (if GID is not -1).  Do not follow symbolic links.
+   Return 0 if successful, otherwise -1 and errno set.
+   See the POSIX:2001 specification
+   <http://www.opengroup.org/susv3xsh/lchown.html>.  */
+#  define lchown rpl_lchown
+extern int lchown (char const *file, uid_t owner, gid_t group);
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef lchown
+# define lchown(f,u,g) \
+    (GL_LINK_WARNING ("lchown is unportable to pre-POSIX.1-2001 " \
+                      "systems - use gnulib module lchown for portability"), \
+     lchown (f, u, g))
+#endif
+
+
+#if @GNULIB_LSEEK@
+# if @REPLACE_LSEEK@
+/* Set the offset of FD relative to SEEK_SET, SEEK_CUR, or SEEK_END.
+   Return the new offset if successful, otherwise -1 and errno set.
+   See the POSIX:2001 specification
+   <http://www.opengroup.org/susv3xsh/lseek.html>.  */
+#  define lseek rpl_lseek
+   extern off_t lseek (int fd, off_t offset, int whence);
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef lseek
+# define lseek(f,o,w) \
+    (GL_LINK_WARNING ("lseek does not fail with ESPIPE on pipes on some " \
+                      "systems - use gnulib module lseek for portability"), \
+     lseek (f, o, w))
+#endif
+
+
+#if @GNULIB_READLINK@
+/* Read the contents of the symbolic link FILE and place the first BUFSIZE
+   bytes of it into BUF.  Return the number of bytes placed into BUF if
+   successful, otherwise -1 and errno set.
+   See the POSIX:2001 specification
+   <http://www.opengroup.org/susv3xsh/readlink.html>.  */
+# if !@HAVE_READLINK@
+#  include <stddef.h>
+extern int readlink (const char *file, char *buf, size_t bufsize);
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef readlink
+# define readlink(f,b,s) \
+    (GL_LINK_WARNING ("readlink is unportable - " \
+                      "use gnulib module readlink for portability"), \
+     readlink (f, b, s))
+#endif
+
+
+#if @GNULIB_SLEEP@
+/* Pause the execution of the current thread for N seconds.
+   Returns the number of seconds left to sleep.
+   See the POSIX:2001 specification
+   <http://www.opengroup.org/susv3xsh/sleep.html>.  */
+# if !@HAVE_SLEEP@
+extern unsigned int sleep (unsigned int n);
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef sleep
+# define sleep(n) \
+    (GL_LINK_WARNING ("sleep is unportable - " \
+                      "use gnulib module sleep for portability"), \
+     sleep (n))
+#endif
+
+
+#ifdef __cplusplus
+}
+#endif
+
+
+#endif /* _GL_UNISTD_H */
+#endif /* _GL_UNISTD_H */
diff --git a/gl/unistd_.h b/gl/unistd_.h
deleted file mode 100644
index 36fa6731..00000000
--- a/gl/unistd_.h
+++ /dev/null
@@ -1,52 +0,0 @@
-/* Substitute for and wrapper around <unistd.h>.
-   Copyright (C) 2006 Free Software Foundation, Inc.
-
-   This program is free software; you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software Foundation,
-   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
-
-#ifndef _GL_UNISTD_H
-#define _GL_UNISTD_H
-
-#if HAVE_UNISTD_H
-# include @ABSOLUTE_UNISTD_H@
-#endif
-
-
-/* Declare overridden functions.  */
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#ifdef FCHDIR_REPLACEMENT
-
-/* Change the process' current working directory to the directory on which
-   the given file descriptor is open.  */
-extern int fchdir (int /*fd*/);
-
-# define close rpl_close
-extern int close (int);
-# define dup rpl_dup
-extern int dup (int);
-# define dup2 rpl_dup2
-extern int dup2 (int, int);
-
-#endif
-
-#ifdef __cplusplus
-}
-#endif
-
-
-#endif /* _GL_UNISTD_H */
diff --git a/gl/vasnprintf.c b/gl/vasnprintf.c
index 0fe2aada..d5b40286 100644
--- a/gl/vasnprintf.c
+++ b/gl/vasnprintf.c
@@ -1,9 +1,9 @@
 /* vsprintf with automatic memory allocation.
-   Copyright (C) 1999, 2002-2006 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002-2008 Free Software Foundation, Inc.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
+   the Free Software Foundation; either version 3, or (at your option)
    any later version.
 
    This program is distributed in the hope that it will be useful,
@@ -15,6 +15,35 @@
    with this program; if not, write to the Free Software Foundation,
    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
 
+/* This file can be parametrized with the following macros:
+     VASNPRINTF         The name of the function being defined.
+     FCHAR_T            The element type of the format string.
+     DCHAR_T            The element type of the destination (result) string.
+     FCHAR_T_ONLY_ASCII Set to 1 to enable verification that all characters
+                        in the format string are ASCII. MUST be set if
+                        FCHAR_T and DCHAR_T are not the same type.
+     DIRECTIVE          Structure denoting a format directive.
+                        Depends on FCHAR_T.
+     DIRECTIVES         Structure denoting the set of format directives of a
+                        format string.  Depends on FCHAR_T.
+     PRINTF_PARSE       Function that parses a format string.
+                        Depends on FCHAR_T.
+     DCHAR_CPY          memcpy like function for DCHAR_T[] arrays.
+     DCHAR_SET          memset like function for DCHAR_T[] arrays.
+     DCHAR_MBSNLEN      mbsnlen like function for DCHAR_T[] arrays.
+     SNPRINTF           The system's snprintf (or similar) function.
+                        This may be either snprintf or swprintf.
+     TCHAR_T            The element type of the argument and result string
+                        of the said SNPRINTF function.  This may be either
+                        char or wchar_t.  The code exploits that
+                        sizeof (TCHAR_T) | sizeof (DCHAR_T) and
+                        alignof (TCHAR_T) <= alignof (DCHAR_T).
+     DCHAR_IS_TCHAR     Set to 1 if DCHAR_T and TCHAR_T are the same type.
+     DCHAR_CONV_FROM_ENCODING A function to convert from char[] to DCHAR[].
+     DCHAR_IS_UINT8_T   Set to 1 if DCHAR_T is uint8_t.
+     DCHAR_IS_UINT16_T  Set to 1 if DCHAR_T is uint16_t.
+     DCHAR_IS_UINT32_T  Set to 1 if DCHAR_T is uint32_t.  */
+
 /* Tell glibc's <stdio.h> to provide a prototype for snprintf().
    This must come before <config.h> because <config.h> may include
    <features.h>, and once <features.h> has been included, it's too late.  */
@@ -22,35 +51,79 @@
 # define _GNU_SOURCE    1
 #endif
 
-#include <config.h>
+#ifndef VASNPRINTF
+# include <config.h>
+#endif
 #ifndef IN_LIBINTL
 # include <alloca.h>
 #endif
 
 /* Specification.  */
-#if WIDE_CHAR_VERSION
-# include "vasnwprintf.h"
-#else
-# include "vasnprintf.h"
+#ifndef VASNPRINTF
+# if WIDE_CHAR_VERSION
+#  include "vasnwprintf.h"
+# else
+#  include "vasnprintf.h"
+# endif
 #endif
 
+#include <locale.h>     /* localeconv() */
 #include <stdio.h>      /* snprintf(), sprintf() */
 #include <stdlib.h>     /* abort(), malloc(), realloc(), free() */
 #include <string.h>     /* memcpy(), strlen() */
 #include <errno.h>      /* errno */
 #include <limits.h>     /* CHAR_BIT */
 #include <float.h>      /* DBL_MAX_EXP, LDBL_MAX_EXP */
-#if WIDE_CHAR_VERSION
-# include "wprintf-parse.h"
-#else
-# include "printf-parse.h"
+#if HAVE_NL_LANGINFO
+# include <langinfo.h>
+#endif
+#ifndef VASNPRINTF
+# if WIDE_CHAR_VERSION
+#  include "wprintf-parse.h"
+# else
+#  include "printf-parse.h"
+# endif
 #endif
 
 /* Checked size_t computations.  */
 #include "xsize.h"
 
-#ifdef HAVE_WCHAR_T
-# ifdef HAVE_WCSLEN
+#if (NEED_PRINTF_DOUBLE || NEED_PRINTF_LONG_DOUBLE) && !defined IN_LIBINTL
+# include <math.h>
+# include "float+.h"
+#endif
+
+#if (NEED_PRINTF_DOUBLE || NEED_PRINTF_INFINITE_DOUBLE) && !defined IN_LIBINTL
+# include <math.h>
+# include "isnand.h"
+#endif
+
+#if (NEED_PRINTF_LONG_DOUBLE || NEED_PRINTF_INFINITE_LONG_DOUBLE) && !defined IN_LIBINTL
+# include <math.h>
+# include "isnanl-nolibm.h"
+# include "fpucw.h"
+#endif
+
+#if (NEED_PRINTF_DIRECTIVE_A || NEED_PRINTF_DOUBLE) && !defined IN_LIBINTL
+# include <math.h>
+# include "isnand.h"
+# include "printf-frexp.h"
+#endif
+
+#if (NEED_PRINTF_DIRECTIVE_A || NEED_PRINTF_LONG_DOUBLE) && !defined IN_LIBINTL
+# include <math.h>
+# include "isnanl-nolibm.h"
+# include "printf-frexpl.h"
+# include "fpucw.h"
+#endif
+
+/* Some systems, like OSF/1 4.0 and Woe32, don't have EOVERFLOW.  */
+#ifndef EOVERFLOW
+# define EOVERFLOW E2BIG
+#endif
+
+#if HAVE_WCHAR_T
+# if HAVE_WCSLEN
 #  define local_wcslen wcslen
 # else
    /* Solaris 2.5.1 has wcslen() in a separate library libw.so. To avoid
@@ -72,12 +145,32 @@ local_wcslen (const wchar_t *s)
 # endif
 #endif
 
+/* Default parameters.  */
+#ifndef VASNPRINTF
+# if WIDE_CHAR_VERSION
+#  define VASNPRINTF vasnwprintf
+#  define FCHAR_T wchar_t
+#  define DCHAR_T wchar_t
+#  define TCHAR_T wchar_t
+#  define DCHAR_IS_TCHAR 1
+#  define DIRECTIVE wchar_t_directive
+#  define DIRECTIVES wchar_t_directives
+#  define PRINTF_PARSE wprintf_parse
+#  define DCHAR_CPY wmemcpy
+# else
+#  define VASNPRINTF vasnprintf
+#  define FCHAR_T char
+#  define DCHAR_T char
+#  define TCHAR_T char
+#  define DCHAR_IS_TCHAR 1
+#  define DIRECTIVE char_directive
+#  define DIRECTIVES char_directives
+#  define PRINTF_PARSE printf_parse
+#  define DCHAR_CPY memcpy
+# endif
+#endif
 #if WIDE_CHAR_VERSION
-# define VASNPRINTF vasnwprintf
-# define CHAR_T wchar_t
-# define DIRECTIVE wchar_t_directive
-# define DIRECTIVES wchar_t_directives
-# define PRINTF_PARSE wprintf_parse
+  /* TCHAR_T is wchar_t.  */
 # define USE_SNPRINTF 1
 # if HAVE_DECL__SNWPRINTF
    /* On Windows, the function swprintf() has a different signature than
@@ -88,39 +181,1253 @@ local_wcslen (const wchar_t *s)
 #  define SNPRINTF swprintf
 # endif
 #else
-# define VASNPRINTF vasnprintf
-# define CHAR_T char
-# define DIRECTIVE char_directive
-# define DIRECTIVES char_directives
-# define PRINTF_PARSE printf_parse
-# define USE_SNPRINTF (HAVE_DECL__SNPRINTF || HAVE_SNPRINTF)
+  /* TCHAR_T is char.  */
+# /* Use snprintf if it exists under the name 'snprintf' or '_snprintf'.
+     But don't use it on BeOS, since BeOS snprintf produces no output if the
+     size argument is >= 0x3000000.  */
+# if (HAVE_DECL__SNPRINTF || HAVE_SNPRINTF) && !defined __BEOS__
+#  define USE_SNPRINTF 1
+# else
+#  define USE_SNPRINTF 0
+# endif
 # if HAVE_DECL__SNPRINTF
    /* Windows.  */
 #  define SNPRINTF _snprintf
 # else
    /* Unix.  */
 #  define SNPRINTF snprintf
+   /* Here we need to call the native snprintf, not rpl_snprintf.  */
+#  undef snprintf
 # endif
 #endif
+/* Here we need to call the native sprintf, not rpl_sprintf.  */
+#undef sprintf
 
-CHAR_T *
-VASNPRINTF (CHAR_T *resultbuf, size_t *lengthp, const CHAR_T *format, va_list args)
+#if (NEED_PRINTF_DIRECTIVE_A || NEED_PRINTF_LONG_DOUBLE || NEED_PRINTF_DOUBLE || NEED_PRINTF_INFINITE_DOUBLE) && !defined IN_LIBINTL
+/* Determine the decimal-point character according to the current locale.  */
+# ifndef decimal_point_char_defined
+#  define decimal_point_char_defined 1
+static char
+decimal_point_char ()
 {
-  DIRECTIVES d;
-  arguments a;
+  const char *point;
+  /* Determine it in a multithread-safe way.  We know nl_langinfo is
+     multithread-safe on glibc systems, but is not required to be multithread-
+     safe by POSIX.  sprintf(), however, is multithread-safe.  localeconv()
+     is rarely multithread-safe.  */
+#  if HAVE_NL_LANGINFO && __GLIBC__
+  point = nl_langinfo (RADIXCHAR);
+#  elif 1
+  char pointbuf[5];
+  sprintf (pointbuf, "%#.0f", 1.0);
+  point = &pointbuf[1];
+#  else
+  point = localeconv () -> decimal_point;
+#  endif
+  /* The decimal point is always a single byte: either '.' or ','.  */
+  return (point[0] != '\0' ? point[0] : '.');
+}
+# endif
+#endif
 
-  if (PRINTF_PARSE (format, &d, &a) < 0)
+#if NEED_PRINTF_INFINITE_DOUBLE && !NEED_PRINTF_DOUBLE && !defined IN_LIBINTL
+
+/* Equivalent to !isfinite(x) || x == 0, but does not require libm.  */
+static int
+is_infinite_or_zero (double x)
+{
+  return isnand (x) || x + x == x;
+}
+
+#endif
+
+#if NEED_PRINTF_INFINITE_LONG_DOUBLE && !NEED_PRINTF_LONG_DOUBLE && !defined IN_LIBINTL
+
+/* Equivalent to !isfinite(x), but does not require libm.  */
+static int
+is_infinitel (long double x)
+{
+  return isnanl (x) || (x + x == x && x != 0.0L);
+}
+
+#endif
+
+#if (NEED_PRINTF_LONG_DOUBLE || NEED_PRINTF_DOUBLE) && !defined IN_LIBINTL
+
+/* Converting 'long double' to decimal without rare rounding bugs requires
+   real bignums.  We use the naming conventions of GNU gmp, but vastly simpler
+   (and slower) algorithms.  */
+
+typedef unsigned int mp_limb_t;
+# define GMP_LIMB_BITS 32
+typedef int mp_limb_verify[2 * (sizeof (mp_limb_t) * CHAR_BIT == GMP_LIMB_BITS) - 1];
+
+typedef unsigned long long mp_twolimb_t;
+# define GMP_TWOLIMB_BITS 64
+typedef int mp_twolimb_verify[2 * (sizeof (mp_twolimb_t) * CHAR_BIT == GMP_TWOLIMB_BITS) - 1];
+
+/* Representation of a bignum >= 0.  */
+typedef struct
+{
+  size_t nlimbs;
+  mp_limb_t *limbs; /* Bits in little-endian order, allocated with malloc().  */
+} mpn_t;
+
+/* Compute the product of two bignums >= 0.
+   Return the allocated memory in case of success, NULL in case of memory
+   allocation failure.  */
+static void *
+multiply (mpn_t src1, mpn_t src2, mpn_t *dest)
+{
+  const mp_limb_t *p1;
+  const mp_limb_t *p2;
+  size_t len1;
+  size_t len2;
+
+  if (src1.nlimbs <= src2.nlimbs)
     {
-      errno = EINVAL;
+      len1 = src1.nlimbs;
+      p1 = src1.limbs;
+      len2 = src2.nlimbs;
+      p2 = src2.limbs;
+    }
+  else
+    {
+      len1 = src2.nlimbs;
+      p1 = src2.limbs;
+      len2 = src1.nlimbs;
+      p2 = src1.limbs;
+    }
+  /* Now 0 <= len1 <= len2.  */
+  if (len1 == 0)
+    {
+      /* src1 or src2 is zero.  */
+      dest->nlimbs = 0;
+      dest->limbs = (mp_limb_t *) malloc (1);
+    }
+  else
+    {
+      /* Here 1 <= len1 <= len2.  */
+      size_t dlen;
+      mp_limb_t *dp;
+      size_t k, i, j;
+
+      dlen = len1 + len2;
+      dp = (mp_limb_t *) malloc (dlen * sizeof (mp_limb_t));
+      if (dp == NULL)
+        return NULL;
+      for (k = len2; k > 0; )
+        dp[--k] = 0;
+      for (i = 0; i < len1; i++)
+        {
+          mp_limb_t digit1 = p1[i];
+          mp_twolimb_t carry = 0;
+          for (j = 0; j < len2; j++)
+            {
+              mp_limb_t digit2 = p2[j];
+              carry += (mp_twolimb_t) digit1 * (mp_twolimb_t) digit2;
+              carry += dp[i + j];
+              dp[i + j] = (mp_limb_t) carry;
+              carry = carry >> GMP_LIMB_BITS;
+            }
+          dp[i + len2] = (mp_limb_t) carry;
+        }
+      /* Normalise.  */
+      while (dlen > 0 && dp[dlen - 1] == 0)
+        dlen--;
+      dest->nlimbs = dlen;
+      dest->limbs = dp;
+    }
+  return dest->limbs;
+}
+
+/* Compute the quotient of a bignum a >= 0 and a bignum b > 0.
+   a is written as  a = q * b + r  with 0 <= r < b.  q is the quotient, r
+   the remainder.
+   Finally, round-to-even is performed: If r > b/2 or if r = b/2 and q is odd,
+   q is incremented.
+   Return the allocated memory in case of success, NULL in case of memory
+   allocation failure.  */
+static void *
+divide (mpn_t a, mpn_t b, mpn_t *q)
+{
+  /* Algorithm:
+     First normalise a and b: a=[a[m-1],...,a[0]], b=[b[n-1],...,b[0]]
+     with m>=0 and n>0 (in base beta = 2^GMP_LIMB_BITS).
+     If m<n, then q:=0 and r:=a.
+     If m>=n=1, perform a single-precision division:
+       r:=0, j:=m,
+       while j>0 do
+         {Here (q[m-1]*beta^(m-1)+...+q[j]*beta^j) * b[0] + r*beta^j =
+               = a[m-1]*beta^(m-1)+...+a[j]*beta^j und 0<=r<b[0]<beta}
+         j:=j-1, r:=r*beta+a[j], q[j]:=floor(r/b[0]), r:=r-b[0]*q[j].
+       Normalise [q[m-1],...,q[0]], yields q.
+     If m>=n>1, perform a multiple-precision division:
+       We have a/b < beta^(m-n+1).
+       s:=intDsize-1-(hightest bit in b[n-1]), 0<=s<intDsize.
+       Shift a and b left by s bits, copying them. r:=a.
+       r=[r[m],...,r[0]], b=[b[n-1],...,b[0]] with b[n-1]>=beta/2.
+       For j=m-n,...,0: {Here 0 <= r < b*beta^(j+1).}
+         Compute q* :
+           q* := floor((r[j+n]*beta+r[j+n-1])/b[n-1]).
+           In case of overflow (q* >= beta) set q* := beta-1.
+           Compute c2 := ((r[j+n]*beta+r[j+n-1]) - q* * b[n-1])*beta + r[j+n-2]
+           and c3 := b[n-2] * q*.
+           {We have 0 <= c2 < 2*beta^2, even 0 <= c2 < beta^2 if no overflow
+            occurred.  Furthermore 0 <= c3 < beta^2.
+            If there was overflow and
+            r[j+n]*beta+r[j+n-1] - q* * b[n-1] >= beta, i.e. c2 >= beta^2,
+            the next test can be skipped.}
+           While c3 > c2, {Here 0 <= c2 < c3 < beta^2}
+             Put q* := q* - 1, c2 := c2 + b[n-1]*beta, c3 := c3 - b[n-2].
+           If q* > 0:
+             Put r := r - b * q* * beta^j. In detail:
+               [r[n+j],...,r[j]] := [r[n+j],...,r[j]] - q* * [b[n-1],...,b[0]].
+               hence: u:=0, for i:=0 to n-1 do
+                              u := u + q* * b[i],
+                              r[j+i]:=r[j+i]-(u mod beta) (+ beta, if carry),
+                              u:=u div beta (+ 1, if carry in subtraction)
+                      r[n+j]:=r[n+j]-u.
+               {Since always u = (q* * [b[i-1],...,b[0]] div beta^i) + 1
+                               < q* + 1 <= beta,
+                the carry u does not overflow.}
+             If a negative carry occurs, put q* := q* - 1
+               and [r[n+j],...,r[j]] := [r[n+j],...,r[j]] + [0,b[n-1],...,b[0]].
+         Set q[j] := q*.
+       Normalise [q[m-n],..,q[0]]; this yields the quotient q.
+       Shift [r[n-1],...,r[0]] right by s bits and normalise; this yields the
+       rest r.
+       The room for q[j] can be allocated at the memory location of r[n+j].
+     Finally, round-to-even:
+       Shift r left by 1 bit.
+       If r > b or if r = b and q[0] is odd, q := q+1.
+   */
+  const mp_limb_t *a_ptr = a.limbs;
+  size_t a_len = a.nlimbs;
+  const mp_limb_t *b_ptr = b.limbs;
+  size_t b_len = b.nlimbs;
+  mp_limb_t *roomptr;
+  mp_limb_t *tmp_roomptr = NULL;
+  mp_limb_t *q_ptr;
+  size_t q_len;
+  mp_limb_t *r_ptr;
+  size_t r_len;
+
+  /* Allocate room for a_len+2 digits.
+     (Need a_len+1 digits for the real division and 1 more digit for the
+     final rounding of q.)  */
+  roomptr = (mp_limb_t *) malloc ((a_len + 2) * sizeof (mp_limb_t));
+  if (roomptr == NULL)
+    return NULL;
+
+  /* Normalise a.  */
+  while (a_len > 0 && a_ptr[a_len - 1] == 0)
+    a_len--;
+
+  /* Normalise b.  */
+  for (;;)
+    {
+      if (b_len == 0)
+        /* Division by zero.  */
+        abort ();
+      if (b_ptr[b_len - 1] == 0)
+        b_len--;
+      else
+        break;
+    }
+
+  /* Here m = a_len >= 0 and n = b_len > 0.  */
+
+  if (a_len < b_len)
+    {
+      /* m<n: trivial case.  q=0, r := copy of a.  */
+      r_ptr = roomptr;
+      r_len = a_len;
+      memcpy (r_ptr, a_ptr, a_len * sizeof (mp_limb_t));
+      q_ptr = roomptr + a_len;
+      q_len = 0;
+    }
+  else if (b_len == 1)
+    {
+      /* n=1: single precision division.
+         beta^(m-1) <= a < beta^m  ==>  beta^(m-2) <= a/b < beta^m  */
+      r_ptr = roomptr;
+      q_ptr = roomptr + 1;
+      {
+        mp_limb_t den = b_ptr[0];
+        mp_limb_t remainder = 0;
+        const mp_limb_t *sourceptr = a_ptr + a_len;
+        mp_limb_t *destptr = q_ptr + a_len;
+        size_t count;
+        for (count = a_len; count > 0; count--)
+          {
+            mp_twolimb_t num =
+              ((mp_twolimb_t) remainder << GMP_LIMB_BITS) | *--sourceptr;
+            *--destptr = num / den;
+            remainder = num % den;
+          }
+        /* Normalise and store r.  */
+        if (remainder > 0)
+          {
+            r_ptr[0] = remainder;
+            r_len = 1;
+          }
+        else
+          r_len = 0;
+        /* Normalise q.  */
+        q_len = a_len;
+        if (q_ptr[q_len - 1] == 0)
+          q_len--;
+      }
+    }
+  else
+    {
+      /* n>1: multiple precision division.
+         beta^(m-1) <= a < beta^m, beta^(n-1) <= b < beta^n  ==>
+         beta^(m-n-1) <= a/b < beta^(m-n+1).  */
+      /* Determine s.  */
+      size_t s;
+      {
+        mp_limb_t msd = b_ptr[b_len - 1]; /* = b[n-1], > 0 */
+        s = 31;
+        if (msd >= 0x10000)
+          {
+            msd = msd >> 16;
+            s -= 16;
+          }
+        if (msd >= 0x100)
+          {
+            msd = msd >> 8;
+            s -= 8;
+          }
+        if (msd >= 0x10)
+          {
+            msd = msd >> 4;
+            s -= 4;
+          }
+        if (msd >= 0x4)
+          {
+            msd = msd >> 2;
+            s -= 2;
+          }
+        if (msd >= 0x2)
+          {
+            msd = msd >> 1;
+            s -= 1;
+          }
+      }
+      /* 0 <= s < GMP_LIMB_BITS.
+         Copy b, shifting it left by s bits.  */
+      if (s > 0)
+        {
+          tmp_roomptr = (mp_limb_t *) malloc (b_len * sizeof (mp_limb_t));
+          if (tmp_roomptr == NULL)
+            {
+              free (roomptr);
+              return NULL;
+            }
+          {
+            const mp_limb_t *sourceptr = b_ptr;
+            mp_limb_t *destptr = tmp_roomptr;
+            mp_twolimb_t accu = 0;
+            size_t count;
+            for (count = b_len; count > 0; count--)
+              {
+                accu += (mp_twolimb_t) *sourceptr++ << s;
+                *destptr++ = (mp_limb_t) accu;
+                accu = accu >> GMP_LIMB_BITS;
+              }
+            /* accu must be zero, since that was how s was determined.  */
+            if (accu != 0)
+              abort ();
+          }
+          b_ptr = tmp_roomptr;
+        }
+      /* Copy a, shifting it left by s bits, yields r.
+         Memory layout:
+         At the beginning: r = roomptr[0..a_len],
+         at the end: r = roomptr[0..b_len-1], q = roomptr[b_len..a_len]  */
+      r_ptr = roomptr;
+      if (s == 0)
+        {
+          memcpy (r_ptr, a_ptr, a_len * sizeof (mp_limb_t));
+          r_ptr[a_len] = 0;
+        }
+      else
+        {
+          const mp_limb_t *sourceptr = a_ptr;
+          mp_limb_t *destptr = r_ptr;
+          mp_twolimb_t accu = 0;
+          size_t count;
+          for (count = a_len; count > 0; count--)
+            {
+              accu += (mp_twolimb_t) *sourceptr++ << s;
+              *destptr++ = (mp_limb_t) accu;
+              accu = accu >> GMP_LIMB_BITS;
+            }
+          *destptr++ = (mp_limb_t) accu;
+        }
+      q_ptr = roomptr + b_len;
+      q_len = a_len - b_len + 1; /* q will have m-n+1 limbs */
+      {
+        size_t j = a_len - b_len; /* m-n */
+        mp_limb_t b_msd = b_ptr[b_len - 1]; /* b[n-1] */
+        mp_limb_t b_2msd = b_ptr[b_len - 2]; /* b[n-2] */
+        mp_twolimb_t b_msdd = /* b[n-1]*beta+b[n-2] */
+          ((mp_twolimb_t) b_msd << GMP_LIMB_BITS) | b_2msd;
+        /* Division loop, traversed m-n+1 times.
+           j counts down, b is unchanged, beta/2 <= b[n-1] < beta.  */
+        for (;;)
+          {
+            mp_limb_t q_star;
+            mp_limb_t c1;
+            if (r_ptr[j + b_len] < b_msd) /* r[j+n] < b[n-1] ? */
+              {
+                /* Divide r[j+n]*beta+r[j+n-1] by b[n-1], no overflow.  */
+                mp_twolimb_t num =
+                  ((mp_twolimb_t) r_ptr[j + b_len] << GMP_LIMB_BITS)
+                  | r_ptr[j + b_len - 1];
+                q_star = num / b_msd;
+                c1 = num % b_msd;
+              }
+            else
+              {
+                /* Overflow, hence r[j+n]*beta+r[j+n-1] >= beta*b[n-1].  */
+                q_star = (mp_limb_t)~(mp_limb_t)0; /* q* = beta-1 */
+                /* Test whether r[j+n]*beta+r[j+n-1] - (beta-1)*b[n-1] >= beta
+                   <==> r[j+n]*beta+r[j+n-1] + b[n-1] >= beta*b[n-1]+beta
+                   <==> b[n-1] < floor((r[j+n]*beta+r[j+n-1]+b[n-1])/beta)
+                        {<= beta !}.
+                   If yes, jump directly to the subtraction loop.
+                   (Otherwise, r[j+n]*beta+r[j+n-1] - (beta-1)*b[n-1] < beta
+                    <==> floor((r[j+n]*beta+r[j+n-1]+b[n-1])/beta) = b[n-1] ) */
+                if (r_ptr[j + b_len] > b_msd
+                    || (c1 = r_ptr[j + b_len - 1] + b_msd) < b_msd)
+                  /* r[j+n] >= b[n-1]+1 or
+                     r[j+n] = b[n-1] and the addition r[j+n-1]+b[n-1] gives a
+                     carry.  */
+                  goto subtract;
+              }
+            /* q_star = q*,
+               c1 = (r[j+n]*beta+r[j+n-1]) - q* * b[n-1] (>=0, <beta).  */
+            {
+              mp_twolimb_t c2 = /* c1*beta+r[j+n-2] */
+                ((mp_twolimb_t) c1 << GMP_LIMB_BITS) | r_ptr[j + b_len - 2];
+              mp_twolimb_t c3 = /* b[n-2] * q* */
+                (mp_twolimb_t) b_2msd * (mp_twolimb_t) q_star;
+              /* While c2 < c3, increase c2 and decrease c3.
+                 Consider c3-c2.  While it is > 0, decrease it by
+                 b[n-1]*beta+b[n-2].  Because of b[n-1]*beta+b[n-2] >= beta^2/2
+                 this can happen only twice.  */
+              if (c3 > c2)
+                {
+                  q_star = q_star - 1; /* q* := q* - 1 */
+                  if (c3 - c2 > b_msdd)
+                    q_star = q_star - 1; /* q* := q* - 1 */
+                }
+            }
+            if (q_star > 0)
+              subtract:
+              {
+                /* Subtract r := r - b * q* * beta^j.  */
+                mp_limb_t cr;
+                {
+                  const mp_limb_t *sourceptr = b_ptr;
+                  mp_limb_t *destptr = r_ptr + j;
+                  mp_twolimb_t carry = 0;
+                  size_t count;
+                  for (count = b_len; count > 0; count--)
+                    {
+                      /* Here 0 <= carry <= q*.  */
+                      carry =
+                        carry
+                        + (mp_twolimb_t) q_star * (mp_twolimb_t) *sourceptr++
+                        + (mp_limb_t) ~(*destptr);
+                      /* Here 0 <= carry <= beta*q* + beta-1.  */
+                      *destptr++ = ~(mp_limb_t) carry;
+                      carry = carry >> GMP_LIMB_BITS; /* <= q* */
+                    }
+                  cr = (mp_limb_t) carry;
+                }
+                /* Subtract cr from r_ptr[j + b_len], then forget about
+                   r_ptr[j + b_len].  */
+                if (cr > r_ptr[j + b_len])
+                  {
+                    /* Subtraction gave a carry.  */
+                    q_star = q_star - 1; /* q* := q* - 1 */
+                    /* Add b back.  */
+                    {
+                      const mp_limb_t *sourceptr = b_ptr;
+                      mp_limb_t *destptr = r_ptr + j;
+                      mp_limb_t carry = 0;
+                      size_t count;
+                      for (count = b_len; count > 0; count--)
+                        {
+                          mp_limb_t source1 = *sourceptr++;
+                          mp_limb_t source2 = *destptr;
+                          *destptr++ = source1 + source2 + carry;
+                          carry =
+                            (carry
+                             ? source1 >= (mp_limb_t) ~source2
+                             : source1 > (mp_limb_t) ~source2);
+                        }
+                    }
+                    /* Forget about the carry and about r[j+n].  */
+                  }
+              }
+            /* q* is determined.  Store it as q[j].  */
+            q_ptr[j] = q_star;
+            if (j == 0)
+              break;
+            j--;
+          }
+      }
+      r_len = b_len;
+      /* Normalise q.  */
+      if (q_ptr[q_len - 1] == 0)
+        q_len--;
+# if 0 /* Not needed here, since we need r only to compare it with b/2, and
+          b is shifted left by s bits.  */
+      /* Shift r right by s bits.  */
+      if (s > 0)
+        {
+          mp_limb_t ptr = r_ptr + r_len;
+          mp_twolimb_t accu = 0;
+          size_t count;
+          for (count = r_len; count > 0; count--)
+            {
+              accu = (mp_twolimb_t) (mp_limb_t) accu << GMP_LIMB_BITS;
+              accu += (mp_twolimb_t) *--ptr << (GMP_LIMB_BITS - s);
+              *ptr = (mp_limb_t) (accu >> GMP_LIMB_BITS);
+            }
+        }
+# endif
+      /* Normalise r.  */
+      while (r_len > 0 && r_ptr[r_len - 1] == 0)
+        r_len--;
+    }
+  /* Compare r << 1 with b.  */
+  if (r_len > b_len)
+    goto increment_q;
+  {
+    size_t i;
+    for (i = b_len;;)
+      {
+        mp_limb_t r_i =
+          (i <= r_len && i > 0 ? r_ptr[i - 1] >> (GMP_LIMB_BITS - 1) : 0)
+          | (i < r_len ? r_ptr[i] << 1 : 0);
+        mp_limb_t b_i = (i < b_len ? b_ptr[i] : 0);
+        if (r_i > b_i)
+          goto increment_q;
+        if (r_i < b_i)
+          goto keep_q;
+        if (i == 0)
+          break;
+        i--;
+      }
+  }
+  if (q_len > 0 && ((q_ptr[0] & 1) != 0))
+    /* q is odd.  */
+    increment_q:
+    {
+      size_t i;
+      for (i = 0; i < q_len; i++)
+        if (++(q_ptr[i]) != 0)
+          goto keep_q;
+      q_ptr[q_len++] = 1;
+    }
+  keep_q:
+  if (tmp_roomptr != NULL)
+    free (tmp_roomptr);
+  q->limbs = q_ptr;
+  q->nlimbs = q_len;
+  return roomptr;
+}
+
+/* Convert a bignum a >= 0, multiplied with 10^extra_zeroes, to decimal
+   representation.
+   Destroys the contents of a.
+   Return the allocated memory - containing the decimal digits in low-to-high
+   order, terminated with a NUL character - in case of success, NULL in case
+   of memory allocation failure.  */
+static char *
+convert_to_decimal (mpn_t a, size_t extra_zeroes)
+{
+  mp_limb_t *a_ptr = a.limbs;
+  size_t a_len = a.nlimbs;
+  /* 0.03345 is slightly larger than log(2)/(9*log(10)).  */
+  size_t c_len = 9 * ((size_t)(a_len * (GMP_LIMB_BITS * 0.03345f)) + 1);
+  char *c_ptr = (char *) malloc (xsum (c_len, extra_zeroes));
+  if (c_ptr != NULL)
+    {
+      char *d_ptr = c_ptr;
+      for (; extra_zeroes > 0; extra_zeroes--)
+        *d_ptr++ = '0';
+      while (a_len > 0)
+        {
+          /* Divide a by 10^9, in-place.  */
+          mp_limb_t remainder = 0;
+          mp_limb_t *ptr = a_ptr + a_len;
+          size_t count;
+          for (count = a_len; count > 0; count--)
+            {
+              mp_twolimb_t num =
+                ((mp_twolimb_t) remainder << GMP_LIMB_BITS) | *--ptr;
+              *ptr = num / 1000000000;
+              remainder = num % 1000000000;
+            }
+          /* Store the remainder as 9 decimal digits.  */
+          for (count = 9; count > 0; count--)
+            {
+              *d_ptr++ = '0' + (remainder % 10);
+              remainder = remainder / 10;
+            }
+          /* Normalize a.  */
+          if (a_ptr[a_len - 1] == 0)
+            a_len--;
+        }
+      /* Remove leading zeroes.  */
+      while (d_ptr > c_ptr && d_ptr[-1] == '0')
+        d_ptr--;
+      /* But keep at least one zero.  */
+      if (d_ptr == c_ptr)
+        *d_ptr++ = '0';
+      /* Terminate the string.  */
+      *d_ptr = '\0';
+    }
+  return c_ptr;
+}
+
+# if NEED_PRINTF_LONG_DOUBLE
+
+/* Assuming x is finite and >= 0:
+   write x as x = 2^e * m, where m is a bignum.
+   Return the allocated memory in case of success, NULL in case of memory
+   allocation failure.  */
+static void *
+decode_long_double (long double x, int *ep, mpn_t *mp)
+{
+  mpn_t m;
+  int exp;
+  long double y;
+  size_t i;
+
+  /* Allocate memory for result.  */
+  m.nlimbs = (LDBL_MANT_BIT + GMP_LIMB_BITS - 1) / GMP_LIMB_BITS;
+  m.limbs = (mp_limb_t *) malloc (m.nlimbs * sizeof (mp_limb_t));
+  if (m.limbs == NULL)
+    return NULL;
+  /* Split into exponential part and mantissa.  */
+  y = frexpl (x, &exp);
+  if (!(y >= 0.0L && y < 1.0L))
+    abort ();
+  /* x = 2^exp * y = 2^(exp - LDBL_MANT_BIT) * (y * LDBL_MANT_BIT), and the
+     latter is an integer.  */
+  /* Convert the mantissa (y * LDBL_MANT_BIT) to a sequence of limbs.
+     I'm not sure whether it's safe to cast a 'long double' value between
+     2^31 and 2^32 to 'unsigned int', therefore play safe and cast only
+     'long double' values between 0 and 2^16 (to 'unsigned int' or 'int',
+     doesn't matter).  */
+#  if (LDBL_MANT_BIT % GMP_LIMB_BITS) != 0
+#   if (LDBL_MANT_BIT % GMP_LIMB_BITS) > GMP_LIMB_BITS / 2
+    {
+      mp_limb_t hi, lo;
+      y *= (mp_limb_t) 1 << (LDBL_MANT_BIT % (GMP_LIMB_BITS / 2));
+      hi = (int) y;
+      y -= hi;
+      if (!(y >= 0.0L && y < 1.0L))
+        abort ();
+      y *= (mp_limb_t) 1 << (GMP_LIMB_BITS / 2);
+      lo = (int) y;
+      y -= lo;
+      if (!(y >= 0.0L && y < 1.0L))
+        abort ();
+      m.limbs[LDBL_MANT_BIT / GMP_LIMB_BITS] = (hi << (GMP_LIMB_BITS / 2)) | lo;
+    }
+#   else
+    {
+      mp_limb_t d;
+      y *= (mp_limb_t) 1 << (LDBL_MANT_BIT % GMP_LIMB_BITS);
+      d = (int) y;
+      y -= d;
+      if (!(y >= 0.0L && y < 1.0L))
+        abort ();
+      m.limbs[LDBL_MANT_BIT / GMP_LIMB_BITS] = d;
+    }
+#   endif
+#  endif
+  for (i = LDBL_MANT_BIT / GMP_LIMB_BITS; i > 0; )
+    {
+      mp_limb_t hi, lo;
+      y *= (mp_limb_t) 1 << (GMP_LIMB_BITS / 2);
+      hi = (int) y;
+      y -= hi;
+      if (!(y >= 0.0L && y < 1.0L))
+        abort ();
+      y *= (mp_limb_t) 1 << (GMP_LIMB_BITS / 2);
+      lo = (int) y;
+      y -= lo;
+      if (!(y >= 0.0L && y < 1.0L))
+        abort ();
+      m.limbs[--i] = (hi << (GMP_LIMB_BITS / 2)) | lo;
+    }
+#if 0 /* On FreeBSD 6.1/x86, 'long double' numbers sometimes have excess
+         precision.  */
+  if (!(y == 0.0L))
+    abort ();
+#endif
+  /* Normalise.  */
+  while (m.nlimbs > 0 && m.limbs[m.nlimbs - 1] == 0)
+    m.nlimbs--;
+  *mp = m;
+  *ep = exp - LDBL_MANT_BIT;
+  return m.limbs;
+}
+
+# endif
+
+# if NEED_PRINTF_DOUBLE
+
+/* Assuming x is finite and >= 0:
+   write x as x = 2^e * m, where m is a bignum.
+   Return the allocated memory in case of success, NULL in case of memory
+   allocation failure.  */
+static void *
+decode_double (double x, int *ep, mpn_t *mp)
+{
+  mpn_t m;
+  int exp;
+  double y;
+  size_t i;
+
+  /* Allocate memory for result.  */
+  m.nlimbs = (DBL_MANT_BIT + GMP_LIMB_BITS - 1) / GMP_LIMB_BITS;
+  m.limbs = (mp_limb_t *) malloc (m.nlimbs * sizeof (mp_limb_t));
+  if (m.limbs == NULL)
+    return NULL;
+  /* Split into exponential part and mantissa.  */
+  y = frexp (x, &exp);
+  if (!(y >= 0.0 && y < 1.0))
+    abort ();
+  /* x = 2^exp * y = 2^(exp - DBL_MANT_BIT) * (y * DBL_MANT_BIT), and the
+     latter is an integer.  */
+  /* Convert the mantissa (y * DBL_MANT_BIT) to a sequence of limbs.
+     I'm not sure whether it's safe to cast a 'double' value between
+     2^31 and 2^32 to 'unsigned int', therefore play safe and cast only
+     'double' values between 0 and 2^16 (to 'unsigned int' or 'int',
+     doesn't matter).  */
+#  if (DBL_MANT_BIT % GMP_LIMB_BITS) != 0
+#   if (DBL_MANT_BIT % GMP_LIMB_BITS) > GMP_LIMB_BITS / 2
+    {
+      mp_limb_t hi, lo;
+      y *= (mp_limb_t) 1 << (DBL_MANT_BIT % (GMP_LIMB_BITS / 2));
+      hi = (int) y;
+      y -= hi;
+      if (!(y >= 0.0 && y < 1.0))
+        abort ();
+      y *= (mp_limb_t) 1 << (GMP_LIMB_BITS / 2);
+      lo = (int) y;
+      y -= lo;
+      if (!(y >= 0.0 && y < 1.0))
+        abort ();
+      m.limbs[DBL_MANT_BIT / GMP_LIMB_BITS] = (hi << (GMP_LIMB_BITS / 2)) | lo;
+    }
+#   else
+    {
+      mp_limb_t d;
+      y *= (mp_limb_t) 1 << (DBL_MANT_BIT % GMP_LIMB_BITS);
+      d = (int) y;
+      y -= d;
+      if (!(y >= 0.0 && y < 1.0))
+        abort ();
+      m.limbs[DBL_MANT_BIT / GMP_LIMB_BITS] = d;
+    }
+#   endif
+#  endif
+  for (i = DBL_MANT_BIT / GMP_LIMB_BITS; i > 0; )
+    {
+      mp_limb_t hi, lo;
+      y *= (mp_limb_t) 1 << (GMP_LIMB_BITS / 2);
+      hi = (int) y;
+      y -= hi;
+      if (!(y >= 0.0 && y < 1.0))
+        abort ();
+      y *= (mp_limb_t) 1 << (GMP_LIMB_BITS / 2);
+      lo = (int) y;
+      y -= lo;
+      if (!(y >= 0.0 && y < 1.0))
+        abort ();
+      m.limbs[--i] = (hi << (GMP_LIMB_BITS / 2)) | lo;
+    }
+  if (!(y == 0.0))
+    abort ();
+  /* Normalise.  */
+  while (m.nlimbs > 0 && m.limbs[m.nlimbs - 1] == 0)
+    m.nlimbs--;
+  *mp = m;
+  *ep = exp - DBL_MANT_BIT;
+  return m.limbs;
+}
+
+# endif
+
+/* Assuming x = 2^e * m is finite and >= 0, and n is an integer:
+   Returns the decimal representation of round (x * 10^n).
+   Return the allocated memory - containing the decimal digits in low-to-high
+   order, terminated with a NUL character - in case of success, NULL in case
+   of memory allocation failure.  */
+static char *
+scale10_round_decimal_decoded (int e, mpn_t m, void *memory, int n)
+{
+  int s;
+  size_t extra_zeroes;
+  unsigned int abs_n;
+  unsigned int abs_s;
+  mp_limb_t *pow5_ptr;
+  size_t pow5_len;
+  unsigned int s_limbs;
+  unsigned int s_bits;
+  mpn_t pow5;
+  mpn_t z;
+  void *z_memory;
+  char *digits;
+
+  if (memory == NULL)
+    return NULL;
+  /* x = 2^e * m, hence
+     y = round (2^e * 10^n * m) = round (2^(e+n) * 5^n * m)
+       = round (2^s * 5^n * m).  */
+  s = e + n;
+  extra_zeroes = 0;
+  /* Factor out a common power of 10 if possible.  */
+  if (s > 0 && n > 0)
+    {
+      extra_zeroes = (s < n ? s : n);
+      s -= extra_zeroes;
+      n -= extra_zeroes;
+    }
+  /* Here y = round (2^s * 5^n * m) * 10^extra_zeroes.
+     Before converting to decimal, we need to compute
+     z = round (2^s * 5^n * m).  */
+  /* Compute 5^|n|, possibly shifted by |s| bits if n and s have the same
+     sign.  2.322 is slightly larger than log(5)/log(2).  */
+  abs_n = (n >= 0 ? n : -n);
+  abs_s = (s >= 0 ? s : -s);
+  pow5_ptr = (mp_limb_t *) malloc (((int)(abs_n * (2.322f / GMP_LIMB_BITS)) + 1
+                                    + abs_s / GMP_LIMB_BITS + 1)
+                                   * sizeof (mp_limb_t));
+  if (pow5_ptr == NULL)
+    {
+      free (memory);
       return NULL;
     }
+  /* Initialize with 1.  */
+  pow5_ptr[0] = 1;
+  pow5_len = 1;
+  /* Multiply with 5^|n|.  */
+  if (abs_n > 0)
+    {
+      static mp_limb_t const small_pow5[13 + 1] =
+        {
+          1, 5, 25, 125, 625, 3125, 15625, 78125, 390625, 1953125, 9765625,
+          48828125, 244140625, 1220703125
+        };
+      unsigned int n13;
+      for (n13 = 0; n13 <= abs_n; n13 += 13)
+        {
+          mp_limb_t digit1 = small_pow5[n13 + 13 <= abs_n ? 13 : abs_n - n13];
+          size_t j;
+          mp_twolimb_t carry = 0;
+          for (j = 0; j < pow5_len; j++)
+            {
+              mp_limb_t digit2 = pow5_ptr[j];
+              carry += (mp_twolimb_t) digit1 * (mp_twolimb_t) digit2;
+              pow5_ptr[j] = (mp_limb_t) carry;
+              carry = carry >> GMP_LIMB_BITS;
+            }
+          if (carry > 0)
+            pow5_ptr[pow5_len++] = (mp_limb_t) carry;
+        }
+    }
+  s_limbs = abs_s / GMP_LIMB_BITS;
+  s_bits = abs_s % GMP_LIMB_BITS;
+  if (n >= 0 ? s >= 0 : s <= 0)
+    {
+      /* Multiply with 2^|s|.  */
+      if (s_bits > 0)
+        {
+          mp_limb_t *ptr = pow5_ptr;
+          mp_twolimb_t accu = 0;
+          size_t count;
+          for (count = pow5_len; count > 0; count--)
+            {
+              accu += (mp_twolimb_t) *ptr << s_bits;
+              *ptr++ = (mp_limb_t) accu;
+              accu = accu >> GMP_LIMB_BITS;
+            }
+          if (accu > 0)
+            {
+              *ptr = (mp_limb_t) accu;
+              pow5_len++;
+            }
+        }
+      if (s_limbs > 0)
+        {
+          size_t count;
+          for (count = pow5_len; count > 0;)
+            {
+              count--;
+              pow5_ptr[s_limbs + count] = pow5_ptr[count];
+            }
+          for (count = s_limbs; count > 0;)
+            {
+              count--;
+              pow5_ptr[count] = 0;
+            }
+          pow5_len += s_limbs;
+        }
+      pow5.limbs = pow5_ptr;
+      pow5.nlimbs = pow5_len;
+      if (n >= 0)
+        {
+          /* Multiply m with pow5.  No division needed.  */
+          z_memory = multiply (m, pow5, &z);
+        }
+      else
+        {
+          /* Divide m by pow5 and round.  */
+          z_memory = divide (m, pow5, &z);
+        }
+    }
+  else
+    {
+      pow5.limbs = pow5_ptr;
+      pow5.nlimbs = pow5_len;
+      if (n >= 0)
+        {
+          /* n >= 0, s < 0.
+             Multiply m with pow5, then divide by 2^|s|.  */
+          mpn_t numerator;
+          mpn_t denominator;
+          void *tmp_memory;
+          tmp_memory = multiply (m, pow5, &numerator);
+          if (tmp_memory == NULL)
+            {
+              free (pow5_ptr);
+              free (memory);
+              return NULL;
+            }
+          /* Construct 2^|s|.  */
+          {
+            mp_limb_t *ptr = pow5_ptr + pow5_len;
+            size_t i;
+            for (i = 0; i < s_limbs; i++)
+              ptr[i] = 0;
+            ptr[s_limbs] = (mp_limb_t) 1 << s_bits;
+            denominator.limbs = ptr;
+            denominator.nlimbs = s_limbs + 1;
+          }
+          z_memory = divide (numerator, denominator, &z);
+          free (tmp_memory);
+        }
+      else
+        {
+          /* n < 0, s > 0.
+             Multiply m with 2^s, then divide by pow5.  */
+          mpn_t numerator;
+          mp_limb_t *num_ptr;
+          num_ptr = (mp_limb_t *) malloc ((m.nlimbs + s_limbs + 1)
+                                          * sizeof (mp_limb_t));
+          if (num_ptr == NULL)
+            {
+              free (pow5_ptr);
+              free (memory);
+              return NULL;
+            }
+          {
+            mp_limb_t *destptr = num_ptr;
+            {
+              size_t i;
+              for (i = 0; i < s_limbs; i++)
+                *destptr++ = 0;
+            }
+            if (s_bits > 0)
+              {
+                const mp_limb_t *sourceptr = m.limbs;
+                mp_twolimb_t accu = 0;
+                size_t count;
+                for (count = m.nlimbs; count > 0; count--)
+                  {
+                    accu += (mp_twolimb_t) *sourceptr++ << s_bits;
+                    *destptr++ = (mp_limb_t) accu;
+                    accu = accu >> GMP_LIMB_BITS;
+                  }
+                if (accu > 0)
+                  *destptr++ = (mp_limb_t) accu;
+              }
+            else
+              {
+                const mp_limb_t *sourceptr = m.limbs;
+                size_t count;
+                for (count = m.nlimbs; count > 0; count--)
+                  *destptr++ = *sourceptr++;
+              }
+            numerator.limbs = num_ptr;
+            numerator.nlimbs = destptr - num_ptr;
+          }
+          z_memory = divide (numerator, pow5, &z);
+          free (num_ptr);
+        }
+    }
+  free (pow5_ptr);
+  free (memory);
+
+  /* Here y = round (x * 10^n) = z * 10^extra_zeroes.  */
+
+  if (z_memory == NULL)
+    return NULL;
+  digits = convert_to_decimal (z, extra_zeroes);
+  free (z_memory);
+  return digits;
+}
+
+# if NEED_PRINTF_LONG_DOUBLE
+
+/* Assuming x is finite and >= 0, and n is an integer:
+   Returns the decimal representation of round (x * 10^n).
+   Return the allocated memory - containing the decimal digits in low-to-high
+   order, terminated with a NUL character - in case of success, NULL in case
+   of memory allocation failure.  */
+static char *
+scale10_round_decimal_long_double (long double x, int n)
+{
+  int e;
+  mpn_t m;
+  void *memory = decode_long_double (x, &e, &m);
+  return scale10_round_decimal_decoded (e, m, memory, n);
+}
+
+# endif
+
+# if NEED_PRINTF_DOUBLE
+
+/* Assuming x is finite and >= 0, and n is an integer:
+   Returns the decimal representation of round (x * 10^n).
+   Return the allocated memory - containing the decimal digits in low-to-high
+   order, terminated with a NUL character - in case of success, NULL in case
+   of memory allocation failure.  */
+static char *
+scale10_round_decimal_double (double x, int n)
+{
+  int e;
+  mpn_t m;
+  void *memory = decode_double (x, &e, &m);
+  return scale10_round_decimal_decoded (e, m, memory, n);
+}
+
+# endif
+
+# if NEED_PRINTF_LONG_DOUBLE
+
+/* Assuming x is finite and > 0:
+   Return an approximation for n with 10^n <= x < 10^(n+1).
+   The approximation is usually the right n, but may be off by 1 sometimes.  */
+static int
+floorlog10l (long double x)
+{
+  int exp;
+  long double y;
+  double z;
+  double l;
+
+  /* Split into exponential part and mantissa.  */
+  y = frexpl (x, &exp);
+  if (!(y >= 0.0L && y < 1.0L))
+    abort ();
+  if (y == 0.0L)
+    return INT_MIN;
+  if (y < 0.5L)
+    {
+      while (y < (1.0L / (1 << (GMP_LIMB_BITS / 2)) / (1 << (GMP_LIMB_BITS / 2))))
+        {
+          y *= 1.0L * (1 << (GMP_LIMB_BITS / 2)) * (1 << (GMP_LIMB_BITS / 2));
+          exp -= GMP_LIMB_BITS;
+        }
+      if (y < (1.0L / (1 << 16)))
+        {
+          y *= 1.0L * (1 << 16);
+          exp -= 16;
+        }
+      if (y < (1.0L / (1 << 8)))
+        {
+          y *= 1.0L * (1 << 8);
+          exp -= 8;
+        }
+      if (y < (1.0L / (1 << 4)))
+        {
+          y *= 1.0L * (1 << 4);
+          exp -= 4;
+        }
+      if (y < (1.0L / (1 << 2)))
+        {
+          y *= 1.0L * (1 << 2);
+          exp -= 2;
+        }
+      if (y < (1.0L / (1 << 1)))
+        {
+          y *= 1.0L * (1 << 1);
+          exp -= 1;
+        }
+    }
+  if (!(y >= 0.5L && y < 1.0L))
+    abort ();
+  /* Compute an approximation for l = log2(x) = exp + log2(y).  */
+  l = exp;
+  z = y;
+  if (z < 0.70710678118654752444)
+    {
+      z *= 1.4142135623730950488;
+      l -= 0.5;
+    }
+  if (z < 0.8408964152537145431)
+    {
+      z *= 1.1892071150027210667;
+      l -= 0.25;
+    }
+  if (z < 0.91700404320467123175)
+    {
+      z *= 1.0905077326652576592;
+      l -= 0.125;
+    }
+  if (z < 0.9576032806985736469)
+    {
+      z *= 1.0442737824274138403;
+      l -= 0.0625;
+    }
+  /* Now 0.95 <= z <= 1.01.  */
+  z = 1 - z;
+  /* log(1-z) = - z - z^2/2 - z^3/3 - z^4/4 - ...
+     Four terms are enough to get an approximation with error < 10^-7.  */
+  l -= z * (1.0 + z * (0.5 + z * ((1.0 / 3) + z * 0.25)));
+  /* Finally multiply with log(2)/log(10), yields an approximation for
+     log10(x).  */
+  l *= 0.30102999566398119523;
+  /* Round down to the next integer.  */
+  return (int) l + (l < 0 ? -1 : 0);
+}
+
+# endif
+
+# if NEED_PRINTF_DOUBLE
+
+/* Assuming x is finite and > 0:
+   Return an approximation for n with 10^n <= x < 10^(n+1).
+   The approximation is usually the right n, but may be off by 1 sometimes.  */
+static int
+floorlog10 (double x)
+{
+  int exp;
+  double y;
+  double z;
+  double l;
+
+  /* Split into exponential part and mantissa.  */
+  y = frexp (x, &exp);
+  if (!(y >= 0.0 && y < 1.0))
+    abort ();
+  if (y == 0.0)
+    return INT_MIN;
+  if (y < 0.5)
+    {
+      while (y < (1.0 / (1 << (GMP_LIMB_BITS / 2)) / (1 << (GMP_LIMB_BITS / 2))))
+        {
+          y *= 1.0 * (1 << (GMP_LIMB_BITS / 2)) * (1 << (GMP_LIMB_BITS / 2));
+          exp -= GMP_LIMB_BITS;
+        }
+      if (y < (1.0 / (1 << 16)))
+        {
+          y *= 1.0 * (1 << 16);
+          exp -= 16;
+        }
+      if (y < (1.0 / (1 << 8)))
+        {
+          y *= 1.0 * (1 << 8);
+          exp -= 8;
+        }
+      if (y < (1.0 / (1 << 4)))
+        {
+          y *= 1.0 * (1 << 4);
+          exp -= 4;
+        }
+      if (y < (1.0 / (1 << 2)))
+        {
+          y *= 1.0 * (1 << 2);
+          exp -= 2;
+        }
+      if (y < (1.0 / (1 << 1)))
+        {
+          y *= 1.0 * (1 << 1);
+          exp -= 1;
+        }
+    }
+  if (!(y >= 0.5 && y < 1.0))
+    abort ();
+  /* Compute an approximation for l = log2(x) = exp + log2(y).  */
+  l = exp;
+  z = y;
+  if (z < 0.70710678118654752444)
+    {
+      z *= 1.4142135623730950488;
+      l -= 0.5;
+    }
+  if (z < 0.8408964152537145431)
+    {
+      z *= 1.1892071150027210667;
+      l -= 0.25;
+    }
+  if (z < 0.91700404320467123175)
+    {
+      z *= 1.0905077326652576592;
+      l -= 0.125;
+    }
+  if (z < 0.9576032806985736469)
+    {
+      z *= 1.0442737824274138403;
+      l -= 0.0625;
+    }
+  /* Now 0.95 <= z <= 1.01.  */
+  z = 1 - z;
+  /* log(1-z) = - z - z^2/2 - z^3/3 - z^4/4 - ...
+     Four terms are enough to get an approximation with error < 10^-7.  */
+  l -= z * (1.0 + z * (0.5 + z * ((1.0 / 3) + z * 0.25)));
+  /* Finally multiply with log(2)/log(10), yields an approximation for
+     log10(x).  */
+  l *= 0.30102999566398119523;
+  /* Round down to the next integer.  */
+  return (int) l + (l < 0 ? -1 : 0);
+}
+
+# endif
+
+#endif
+
+DCHAR_T *
+VASNPRINTF (DCHAR_T *resultbuf, size_t *lengthp,
+            const FCHAR_T *format, va_list args)
+{
+  DIRECTIVES d;
+  arguments a;
+
+  if (PRINTF_PARSE (format, &d, &a) < 0)
+    /* errno is already set.  */
+    return NULL;
 
 #define CLEANUP() \
   free (d.dir);                                                         \
   if (a.arg)                                                            \
     free (a.arg);
 
-  if (printf_fetchargs (args, &a) < 0)
+  if (PRINTF_FETCHARGS (args, &a) < 0)
     {
       CLEANUP ();
       errno = EINVAL;
@@ -129,13 +1436,13 @@ VASNPRINTF (CHAR_T *resultbuf, size_t *lengthp, const CHAR_T *format, va_list ar
 
   {
     size_t buf_neededlength;
-    CHAR_T *buf;
-    CHAR_T *buf_malloced;
-    const CHAR_T *cp;
+    TCHAR_T *buf;
+    TCHAR_T *buf_malloced;
+    const FCHAR_T *cp;
     size_t i;
     DIRECTIVE *dp;
     /* Output string accumulator.  */
-    CHAR_T *result;
+    DCHAR_T *result;
     size_t allocated;
     size_t length;
 
@@ -144,18 +1451,18 @@ VASNPRINTF (CHAR_T *resultbuf, size_t *lengthp, const CHAR_T *format, va_list ar
     buf_neededlength =
       xsum4 (7, d.max_width_length, d.max_precision_length, 6);
 #if HAVE_ALLOCA
-    if (buf_neededlength < 4000 / sizeof (CHAR_T))
+    if (buf_neededlength < 4000 / sizeof (TCHAR_T))
       {
-        buf = (CHAR_T *) alloca (buf_neededlength * sizeof (CHAR_T));
+        buf = (TCHAR_T *) alloca (buf_neededlength * sizeof (TCHAR_T));
         buf_malloced = NULL;
       }
     else
 #endif
       {
-        size_t buf_memsize = xtimes (buf_neededlength, sizeof (CHAR_T));
+        size_t buf_memsize = xtimes (buf_neededlength, sizeof (TCHAR_T));
         if (size_overflow_p (buf_memsize))
           goto out_of_memory_1;
-        buf = (CHAR_T *) malloc (buf_memsize);
+        buf = (TCHAR_T *) malloc (buf_memsize);
         if (buf == NULL)
           goto out_of_memory_1;
         buf_malloced = buf;
@@ -182,22 +1489,22 @@ VASNPRINTF (CHAR_T *resultbuf, size_t *lengthp, const CHAR_T *format, va_list ar
     if ((needed) > allocated)                                                \
       {                                                                      \
         size_t memory_size;                                                  \
-        CHAR_T *memory;                                                      \
+        DCHAR_T *memory;                                                     \
                                                                              \
         allocated = (allocated > 0 ? xtimes (allocated, 2) : 12);            \
         if ((needed) > allocated)                                            \
           allocated = (needed);                                              \
-        memory_size = xtimes (allocated, sizeof (CHAR_T));                   \
+        memory_size = xtimes (allocated, sizeof (DCHAR_T));                  \
         if (size_overflow_p (memory_size))                                   \
           goto out_of_memory;                                                \
         if (result == resultbuf || result == NULL)                           \
-          memory = (CHAR_T *) malloc (memory_size);                          \
+          memory = (DCHAR_T *) malloc (memory_size);                         \
         else                                                                 \
-          memory = (CHAR_T *) realloc (result, memory_size);                 \
+          memory = (DCHAR_T *) realloc (result, memory_size);                \
         if (memory == NULL)                                                  \
           goto out_of_memory;                                                \
         if (result == resultbuf && length > 0)                               \
-          memcpy (memory, result, length * sizeof (CHAR_T));                 \
+          DCHAR_CPY (memory, result, length);                                \
         result = memory;                                                     \
       }
 
@@ -209,8 +1516,20 @@ VASNPRINTF (CHAR_T *resultbuf, size_t *lengthp, const CHAR_T *format, va_list ar
             size_t augmented_length = xsum (length, n);
 
             ENSURE_ALLOCATION (augmented_length);
-            memcpy (result + length, cp, n * sizeof (CHAR_T));
-            length = augmented_length;
+            /* This copies a piece of FCHAR_T[] into a DCHAR_T[].  Here we
+               need that the format string contains only ASCII characters
+               if FCHAR_T and DCHAR_T are not the same type.  */
+            if (sizeof (FCHAR_T) == sizeof (DCHAR_T))
+              {
+                DCHAR_CPY (result + length, (const DCHAR_T *) cp, n);
+                length = augmented_length;
+              }
+            else
+              {
+                do
+                  result[length++] = (unsigned char) *cp++;
+                while (--n > 0);
+              }
           }
         if (i == d.count)
           break;
@@ -248,7 +1567,7 @@ VASNPRINTF (CHAR_T *resultbuf, size_t *lengthp, const CHAR_T *format, va_list ar
                   case TYPE_COUNT_LONGINT_POINTER:
                     *a.arg[dp->arg_index].a.a_count_longint_pointer = length;
                     break;
-#ifdef HAVE_LONG_LONG_INT
+#if HAVE_LONG_LONG_INT
                   case TYPE_COUNT_LONGLONGINT_POINTER:
                     *a.arg[dp->arg_index].a.a_count_longlongint_pointer = length;
                     break;
@@ -257,72 +1576,2100 @@ VASNPRINTF (CHAR_T *resultbuf, size_t *lengthp, const CHAR_T *format, va_list ar
                     abort ();
                   }
               }
-            else
+#if ENABLE_UNISTDIO
+            /* The unistdio extensions.  */
+            else if (dp->conversion == 'U')
               {
                 arg_type type = a.arg[dp->arg_index].type;
-                CHAR_T *p;
-                unsigned int prefix_count;
-                int prefixes[2];
-#if !USE_SNPRINTF
-                size_t tmp_length;
-                CHAR_T tmpbuf[700];
-                CHAR_T *tmp;
+                int flags = dp->flags;
+                int has_width;
+                size_t width;
+                int has_precision;
+                size_t precision;
 
-                /* Allocate a temporary buffer of sufficient size for calling
-                   sprintf.  */
-                {
-                  size_t width;
-                  size_t precision;
+                has_width = 0;
+                width = 0;
+                if (dp->width_start != dp->width_end)
+                  {
+                    if (dp->width_arg_index != ARG_NONE)
+                      {
+                        int arg;
 
-                  width = 0;
-                  if (dp->width_start != dp->width_end)
+                        if (!(a.arg[dp->width_arg_index].type == TYPE_INT))
+                          abort ();
+                        arg = a.arg[dp->width_arg_index].a.a_int;
+                        if (arg < 0)
+                          {
+                            /* "A negative field width is taken as a '-' flag
+                                followed by a positive field width."  */
+                            flags |= FLAG_LEFT;
+                            width = (unsigned int) (-arg);
+                          }
+                        else
+                          width = arg;
+                      }
+                    else
+                      {
+                        const FCHAR_T *digitp = dp->width_start;
+
+                        do
+                          width = xsum (xtimes (width, 10), *digitp++ - '0');
+                        while (digitp != dp->width_end);
+                      }
+                    has_width = 1;
+                  }
+
+                has_precision = 0;
+                precision = 0;
+                if (dp->precision_start != dp->precision_end)
+                  {
+                    if (dp->precision_arg_index != ARG_NONE)
+                      {
+                        int arg;
+
+                        if (!(a.arg[dp->precision_arg_index].type == TYPE_INT))
+                          abort ();
+                        arg = a.arg[dp->precision_arg_index].a.a_int;
+                        /* "A negative precision is taken as if the precision
+                            were omitted."  */
+                        if (arg >= 0)
+                          {
+                            precision = arg;
+                            has_precision = 1;
+                          }
+                      }
+                    else
+                      {
+                        const FCHAR_T *digitp = dp->precision_start + 1;
+
+                        precision = 0;
+                        while (digitp != dp->precision_end)
+                          precision = xsum (xtimes (precision, 10), *digitp++ - '0');
+                        has_precision = 1;
+                      }
+                  }
+
+                switch (type)
+                  {
+                  case TYPE_U8_STRING:
                     {
-                      if (dp->width_arg_index != ARG_NONE)
-                        {
-                          int arg;
+                      const uint8_t *arg = a.arg[dp->arg_index].a.a_u8_string;
+                      const uint8_t *arg_end;
+                      size_t characters;
 
-                          if (!(a.arg[dp->width_arg_index].type == TYPE_INT))
-                            abort ();
-                          arg = a.arg[dp->width_arg_index].a.a_int;
-                          width = (arg < 0 ? (unsigned int) (-arg) : arg);
+                      if (has_precision)
+                        {
+                          /* Use only PRECISION characters, from the left.  */
+                          arg_end = arg;
+                          characters = 0;
+                          for (; precision > 0; precision--)
+                            {
+                              int count = u8_strmblen (arg_end);
+                              if (count == 0)
+                                break;
+                              if (count < 0)
+                                {
+                                  if (!(result == resultbuf || result == NULL))
+                                    free (result);
+                                  if (buf_malloced != NULL)
+                                    free (buf_malloced);
+                                  CLEANUP ();
+                                  errno = EILSEQ;
+                                  return NULL;
+                                }
+                              arg_end += count;
+                              characters++;
+                            }
+                        }
+                      else if (has_width)
+                        {
+                          /* Use the entire string, and count the number of
+                             characters.  */
+                          arg_end = arg;
+                          characters = 0;
+                          for (;;)
+                            {
+                              int count = u8_strmblen (arg_end);
+                              if (count == 0)
+                                break;
+                              if (count < 0)
+                                {
+                                  if (!(result == resultbuf || result == NULL))
+                                    free (result);
+                                  if (buf_malloced != NULL)
+                                    free (buf_malloced);
+                                  CLEANUP ();
+                                  errno = EILSEQ;
+                                  return NULL;
+                                }
+                              arg_end += count;
+                              characters++;
+                            }
                         }
                       else
                         {
-                          const CHAR_T *digitp = dp->width_start;
+                          /* Use the entire string.  */
+                          arg_end = arg + u8_strlen (arg);
+                          /* The number of characters doesn't matter.  */
+                          characters = 0;
+                        }
 
-                          do
-                            width = xsum (xtimes (width, 10), *digitp++ - '0');
-                          while (digitp != dp->width_end);
+                      if (has_width && width > characters
+                          && !(dp->flags & FLAG_LEFT))
+                        {
+                          size_t n = width - characters;
+                          ENSURE_ALLOCATION (xsum (length, n));
+                          DCHAR_SET (result + length, ' ', n);
+                          length += n;
+                        }
+
+# if DCHAR_IS_UINT8_T
+                      {
+                        size_t n = arg_end - arg;
+                        ENSURE_ALLOCATION (xsum (length, n));
+                        DCHAR_CPY (result + length, arg, n);
+                        length += n;
+                      }
+# else
+                      { /* Convert.  */
+                        DCHAR_T *converted = result + length;
+                        size_t converted_len = allocated - length;
+#  if DCHAR_IS_TCHAR
+                        /* Convert from UTF-8 to locale encoding.  */
+                        if (u8_conv_to_encoding (locale_charset (),
+                                                 iconveh_question_mark,
+                                                 arg, arg_end - arg, NULL,
+                                                 &converted, &converted_len)
+                            < 0)
+#  else
+                        /* Convert from UTF-8 to UTF-16/UTF-32.  */
+                        converted =
+                          U8_TO_DCHAR (arg, arg_end - arg,
+                                       converted, &converted_len);
+                        if (converted == NULL)
+#  endif
+                          {
+                            int saved_errno = errno;
+                            if (!(result == resultbuf || result == NULL))
+                              free (result);
+                            if (buf_malloced != NULL)
+                              free (buf_malloced);
+                            CLEANUP ();
+                            errno = saved_errno;
+                            return NULL;
+                          }
+                        if (converted != result + length)
+                          {
+                            ENSURE_ALLOCATION (xsum (length, converted_len));
+                            DCHAR_CPY (result + length, converted, converted_len);
+                            free (converted);
+                          }
+                        length += converted_len;
+                      }
+# endif
+
+                      if (has_width && width > characters
+                          && (dp->flags & FLAG_LEFT))
+                        {
+                          size_t n = width - characters;
+                          ENSURE_ALLOCATION (xsum (length, n));
+                          DCHAR_SET (result + length, ' ', n);
+                          length += n;
                         }
                     }
+                    break;
 
-                  precision = 6;
-                  if (dp->precision_start != dp->precision_end)
+                  case TYPE_U16_STRING:
                     {
-                      if (dp->precision_arg_index != ARG_NONE)
+                      const uint16_t *arg = a.arg[dp->arg_index].a.a_u16_string;
+                      const uint16_t *arg_end;
+                      size_t characters;
+
+                      if (has_precision)
+                        {
+                          /* Use only PRECISION characters, from the left.  */
+                          arg_end = arg;
+                          characters = 0;
+                          for (; precision > 0; precision--)
+                            {
+                              int count = u16_strmblen (arg_end);
+                              if (count == 0)
+                                break;
+                              if (count < 0)
+                                {
+                                  if (!(result == resultbuf || result == NULL))
+                                    free (result);
+                                  if (buf_malloced != NULL)
+                                    free (buf_malloced);
+                                  CLEANUP ();
+                                  errno = EILSEQ;
+                                  return NULL;
+                                }
+                              arg_end += count;
+                              characters++;
+                            }
+                        }
+                      else if (has_width)
                         {
-                          int arg;
+                          /* Use the entire string, and count the number of
+                             characters.  */
+                          arg_end = arg;
+                          characters = 0;
+                          for (;;)
+                            {
+                              int count = u16_strmblen (arg_end);
+                              if (count == 0)
+                                break;
+                              if (count < 0)
+                                {
+                                  if (!(result == resultbuf || result == NULL))
+                                    free (result);
+                                  if (buf_malloced != NULL)
+                                    free (buf_malloced);
+                                  CLEANUP ();
+                                  errno = EILSEQ;
+                                  return NULL;
+                                }
+                              arg_end += count;
+                              characters++;
+                            }
+                        }
+                      else
+                        {
+                          /* Use the entire string.  */
+                          arg_end = arg + u16_strlen (arg);
+                          /* The number of characters doesn't matter.  */
+                          characters = 0;
+                        }
 
-                          if (!(a.arg[dp->precision_arg_index].type == TYPE_INT))
-                            abort ();
-                          arg = a.arg[dp->precision_arg_index].a.a_int;
-                          precision = (arg < 0 ? 0 : arg);
+                      if (has_width && width > characters
+                          && !(dp->flags & FLAG_LEFT))
+                        {
+                          size_t n = width - characters;
+                          ENSURE_ALLOCATION (xsum (length, n));
+                          DCHAR_SET (result + length, ' ', n);
+                          length += n;
+                        }
+
+# if DCHAR_IS_UINT16_T
+                      {
+                        size_t n = arg_end - arg;
+                        ENSURE_ALLOCATION (xsum (length, n));
+                        DCHAR_CPY (result + length, arg, n);
+                        length += n;
+                      }
+# else
+                      { /* Convert.  */
+                        DCHAR_T *converted = result + length;
+                        size_t converted_len = allocated - length;
+#  if DCHAR_IS_TCHAR
+                        /* Convert from UTF-16 to locale encoding.  */
+                        if (u16_conv_to_encoding (locale_charset (),
+                                                  iconveh_question_mark,
+                                                  arg, arg_end - arg, NULL,
+                                                  &converted, &converted_len)
+                            < 0)
+#  else
+                        /* Convert from UTF-16 to UTF-8/UTF-32.  */
+                        converted =
+                          U16_TO_DCHAR (arg, arg_end - arg,
+                                        converted, &converted_len);
+                        if (converted == NULL)
+#  endif
+                          {
+                            int saved_errno = errno;
+                            if (!(result == resultbuf || result == NULL))
+                              free (result);
+                            if (buf_malloced != NULL)
+                              free (buf_malloced);
+                            CLEANUP ();
+                            errno = saved_errno;
+                            return NULL;
+                          }
+                        if (converted != result + length)
+                          {
+                            ENSURE_ALLOCATION (xsum (length, converted_len));
+                            DCHAR_CPY (result + length, converted, converted_len);
+                            free (converted);
+                          }
+                        length += converted_len;
+                      }
+# endif
+
+                      if (has_width && width > characters
+                          && (dp->flags & FLAG_LEFT))
+                        {
+                          size_t n = width - characters;
+                          ENSURE_ALLOCATION (xsum (length, n));
+                          DCHAR_SET (result + length, ' ', n);
+                          length += n;
+                        }
+                    }
+                    break;
+
+                  case TYPE_U32_STRING:
+                    {
+                      const uint32_t *arg = a.arg[dp->arg_index].a.a_u32_string;
+                      const uint32_t *arg_end;
+                      size_t characters;
+
+                      if (has_precision)
+                        {
+                          /* Use only PRECISION characters, from the left.  */
+                          arg_end = arg;
+                          characters = 0;
+                          for (; precision > 0; precision--)
+                            {
+                              int count = u32_strmblen (arg_end);
+                              if (count == 0)
+                                break;
+                              if (count < 0)
+                                {
+                                  if (!(result == resultbuf || result == NULL))
+                                    free (result);
+                                  if (buf_malloced != NULL)
+                                    free (buf_malloced);
+                                  CLEANUP ();
+                                  errno = EILSEQ;
+                                  return NULL;
+                                }
+                              arg_end += count;
+                              characters++;
+                            }
+                        }
+                      else if (has_width)
+                        {
+                          /* Use the entire string, and count the number of
+                             characters.  */
+                          arg_end = arg;
+                          characters = 0;
+                          for (;;)
+                            {
+                              int count = u32_strmblen (arg_end);
+                              if (count == 0)
+                                break;
+                              if (count < 0)
+                                {
+                                  if (!(result == resultbuf || result == NULL))
+                                    free (result);
+                                  if (buf_malloced != NULL)
+                                    free (buf_malloced);
+                                  CLEANUP ();
+                                  errno = EILSEQ;
+                                  return NULL;
+                                }
+                              arg_end += count;
+                              characters++;
+                            }
                         }
                       else
                         {
-                          const CHAR_T *digitp = dp->precision_start + 1;
+                          /* Use the entire string.  */
+                          arg_end = arg + u32_strlen (arg);
+                          /* The number of characters doesn't matter.  */
+                          characters = 0;
+                        }
 
-                          precision = 0;
-                          while (digitp != dp->precision_end)
-                            precision = xsum (xtimes (precision, 10), *digitp++ - '0');
+                      if (has_width && width > characters
+                          && !(dp->flags & FLAG_LEFT))
+                        {
+                          size_t n = width - characters;
+                          ENSURE_ALLOCATION (xsum (length, n));
+                          DCHAR_SET (result + length, ' ', n);
+                          length += n;
+                        }
+
+# if DCHAR_IS_UINT32_T
+                      {
+                        size_t n = arg_end - arg;
+                        ENSURE_ALLOCATION (xsum (length, n));
+                        DCHAR_CPY (result + length, arg, n);
+                        length += n;
+                      }
+# else
+                      { /* Convert.  */
+                        DCHAR_T *converted = result + length;
+                        size_t converted_len = allocated - length;
+#  if DCHAR_IS_TCHAR
+                        /* Convert from UTF-32 to locale encoding.  */
+                        if (u32_conv_to_encoding (locale_charset (),
+                                                  iconveh_question_mark,
+                                                  arg, arg_end - arg, NULL,
+                                                  &converted, &converted_len)
+                            < 0)
+#  else
+                        /* Convert from UTF-32 to UTF-8/UTF-16.  */
+                        converted =
+                          U32_TO_DCHAR (arg, arg_end - arg,
+                                        converted, &converted_len);
+                        if (converted == NULL)
+#  endif
+                          {
+                            int saved_errno = errno;
+                            if (!(result == resultbuf || result == NULL))
+                              free (result);
+                            if (buf_malloced != NULL)
+                              free (buf_malloced);
+                            CLEANUP ();
+                            errno = saved_errno;
+                            return NULL;
+                          }
+                        if (converted != result + length)
+                          {
+                            ENSURE_ALLOCATION (xsum (length, converted_len));
+                            DCHAR_CPY (result + length, converted, converted_len);
+                            free (converted);
+                          }
+                        length += converted_len;
+                      }
+# endif
+
+                      if (has_width && width > characters
+                          && (dp->flags & FLAG_LEFT))
+                        {
+                          size_t n = width - characters;
+                          ENSURE_ALLOCATION (xsum (length, n));
+                          DCHAR_SET (result + length, ' ', n);
+                          length += n;
                         }
                     }
+                    break;
 
+                  default:
+                    abort ();
+                  }
+              }
+#endif
+#if (NEED_PRINTF_DIRECTIVE_A || NEED_PRINTF_LONG_DOUBLE || NEED_PRINTF_DOUBLE) && !defined IN_LIBINTL
+            else if ((dp->conversion == 'a' || dp->conversion == 'A')
+# if !(NEED_PRINTF_DIRECTIVE_A || (NEED_PRINTF_LONG_DOUBLE && NEED_PRINTF_DOUBLE))
+                     && (0
+#  if NEED_PRINTF_DOUBLE
+                         || a.arg[dp->arg_index].type == TYPE_DOUBLE
+#  endif
+#  if NEED_PRINTF_LONG_DOUBLE
+                         || a.arg[dp->arg_index].type == TYPE_LONGDOUBLE
+#  endif
+                        )
+# endif
+                    )
+              {
+                arg_type type = a.arg[dp->arg_index].type;
+                int flags = dp->flags;
+                int has_width;
+                size_t width;
+                int has_precision;
+                size_t precision;
+                size_t tmp_length;
+                DCHAR_T tmpbuf[700];
+                DCHAR_T *tmp;
+                DCHAR_T *pad_ptr;
+                DCHAR_T *p;
+
+                has_width = 0;
+                width = 0;
+                if (dp->width_start != dp->width_end)
+                  {
+                    if (dp->width_arg_index != ARG_NONE)
+                      {
+                        int arg;
+
+                        if (!(a.arg[dp->width_arg_index].type == TYPE_INT))
+                          abort ();
+                        arg = a.arg[dp->width_arg_index].a.a_int;
+                        if (arg < 0)
+                          {
+                            /* "A negative field width is taken as a '-' flag
+                                followed by a positive field width."  */
+                            flags |= FLAG_LEFT;
+                            width = (unsigned int) (-arg);
+                          }
+                        else
+                          width = arg;
+                      }
+                    else
+                      {
+                        const FCHAR_T *digitp = dp->width_start;
+
+                        do
+                          width = xsum (xtimes (width, 10), *digitp++ - '0');
+                        while (digitp != dp->width_end);
+                      }
+                    has_width = 1;
+                  }
+
+                has_precision = 0;
+                precision = 0;
+                if (dp->precision_start != dp->precision_end)
+                  {
+                    if (dp->precision_arg_index != ARG_NONE)
+                      {
+                        int arg;
+
+                        if (!(a.arg[dp->precision_arg_index].type == TYPE_INT))
+                          abort ();
+                        arg = a.arg[dp->precision_arg_index].a.a_int;
+                        /* "A negative precision is taken as if the precision
+                            were omitted."  */
+                        if (arg >= 0)
+                          {
+                            precision = arg;
+                            has_precision = 1;
+                          }
+                      }
+                    else
+                      {
+                        const FCHAR_T *digitp = dp->precision_start + 1;
+
+                        precision = 0;
+                        while (digitp != dp->precision_end)
+                          precision = xsum (xtimes (precision, 10), *digitp++ - '0');
+                        has_precision = 1;
+                      }
+                  }
+
+                /* Allocate a temporary buffer of sufficient size.  */
+                if (type == TYPE_LONGDOUBLE)
+                  tmp_length =
+                    (unsigned int) ((LDBL_DIG + 1)
+                                    * 0.831 /* decimal -> hexadecimal */
+                                   )
+                    + 1; /* turn floor into ceil */
+                else
+                  tmp_length =
+                    (unsigned int) ((DBL_DIG + 1)
+                                    * 0.831 /* decimal -> hexadecimal */
+                                   )
+                    + 1; /* turn floor into ceil */
+                if (tmp_length < precision)
+                  tmp_length = precision;
+                /* Account for sign, decimal point etc. */
+                tmp_length = xsum (tmp_length, 12);
+
+                if (tmp_length < width)
+                  tmp_length = width;
+
+                tmp_length = xsum (tmp_length, 1); /* account for trailing NUL */
+
+                if (tmp_length <= sizeof (tmpbuf) / sizeof (DCHAR_T))
+                  tmp = tmpbuf;
+                else
+                  {
+                    size_t tmp_memsize = xtimes (tmp_length, sizeof (DCHAR_T));
+
+                    if (size_overflow_p (tmp_memsize))
+                      /* Overflow, would lead to out of memory.  */
+                      goto out_of_memory;
+                    tmp = (DCHAR_T *) malloc (tmp_memsize);
+                    if (tmp == NULL)
+                      /* Out of memory.  */
+                      goto out_of_memory;
+                  }
+
+                pad_ptr = NULL;
+                p = tmp;
+                if (type == TYPE_LONGDOUBLE)
+                  {
+# if NEED_PRINTF_DIRECTIVE_A || NEED_PRINTF_LONG_DOUBLE
+                    long double arg = a.arg[dp->arg_index].a.a_longdouble;
+
+                    if (isnanl (arg))
+                      {
+                        if (dp->conversion == 'A')
+                          {
+                            *p++ = 'N'; *p++ = 'A'; *p++ = 'N';
+                          }
+                        else
+                          {
+                            *p++ = 'n'; *p++ = 'a'; *p++ = 'n';
+                          }
+                      }
+                    else
+                      {
+                        int sign = 0;
+                        DECL_LONG_DOUBLE_ROUNDING
+
+                        BEGIN_LONG_DOUBLE_ROUNDING ();
+
+                        if (signbit (arg)) /* arg < 0.0L or negative zero */
+                          {
+                            sign = -1;
+                            arg = -arg;
+                          }
+
+                        if (sign < 0)
+                          *p++ = '-';
+                        else if (flags & FLAG_SHOWSIGN)
+                          *p++ = '+';
+                        else if (flags & FLAG_SPACE)
+                          *p++ = ' ';
+
+                        if (arg > 0.0L && arg + arg == arg)
+                          {
+                            if (dp->conversion == 'A')
+                              {
+                                *p++ = 'I'; *p++ = 'N'; *p++ = 'F';
+                              }
+                            else
+                              {
+                                *p++ = 'i'; *p++ = 'n'; *p++ = 'f';
+                              }
+                          }
+                        else
+                          {
+                            int exponent;
+                            long double mantissa;
+
+                            if (arg > 0.0L)
+                              mantissa = printf_frexpl (arg, &exponent);
+                            else
+                              {
+                                exponent = 0;
+                                mantissa = 0.0L;
+                              }
+
+                            if (has_precision
+                                && precision < (unsigned int) ((LDBL_DIG + 1) * 0.831) + 1)
+                              {
+                                /* Round the mantissa.  */
+                                long double tail = mantissa;
+                                size_t q;
+
+                                for (q = precision; ; q--)
+                                  {
+                                    int digit = (int) tail;
+                                    tail -= digit;
+                                    if (q == 0)
+                                      {
+                                        if (digit & 1 ? tail >= 0.5L : tail > 0.5L)
+                                          tail = 1 - tail;
+                                        else
+                                          tail = - tail;
+                                        break;
+                                      }
+                                    tail *= 16.0L;
+                                  }
+                                if (tail != 0.0L)
+                                  for (q = precision; q > 0; q--)
+                                    tail *= 0.0625L;
+                                mantissa += tail;
+                              }
+
+                            *p++ = '0';
+                            *p++ = dp->conversion - 'A' + 'X';
+                            pad_ptr = p;
+                            {
+                              int digit;
+
+                              digit = (int) mantissa;
+                              mantissa -= digit;
+                              *p++ = '0' + digit;
+                              if ((flags & FLAG_ALT)
+                                  || mantissa > 0.0L || precision > 0)
+                                {
+                                  *p++ = decimal_point_char ();
+                                  /* This loop terminates because we assume
+                                     that FLT_RADIX is a power of 2.  */
+                                  while (mantissa > 0.0L)
+                                    {
+                                      mantissa *= 16.0L;
+                                      digit = (int) mantissa;
+                                      mantissa -= digit;
+                                      *p++ = digit
+                                             + (digit < 10
+                                                ? '0'
+                                                : dp->conversion - 10);
+                                      if (precision > 0)
+                                        precision--;
+                                    }
+                                  while (precision > 0)
+                                    {
+                                      *p++ = '0';
+                                      precision--;
+                                    }
+                                }
+                              }
+                              *p++ = dp->conversion - 'A' + 'P';
+#  if WIDE_CHAR_VERSION
+                              {
+                                static const wchar_t decimal_format[] =
+                                  { '%', '+', 'd', '\0' };
+                                SNPRINTF (p, 6 + 1, decimal_format, exponent);
+                              }
+                              while (*p != '\0')
+                                p++;
+#  else
+                              if (sizeof (DCHAR_T) == 1)
+                                {
+                                  sprintf ((char *) p, "%+d", exponent);
+                                  while (*p != '\0')
+                                    p++;
+                                }
+                              else
+                                {
+                                  char expbuf[6 + 1];
+                                  const char *ep;
+                                  sprintf (expbuf, "%+d", exponent);
+                                  for (ep = expbuf; (*p = *ep) != '\0'; ep++)
+                                    p++;
+                                }
+#  endif
+                          }
+
+                        END_LONG_DOUBLE_ROUNDING ();
+                      }
+# else
+                    abort ();
+# endif
+                  }
+                else
+                  {
+# if NEED_PRINTF_DIRECTIVE_A || NEED_PRINTF_DOUBLE
+                    double arg = a.arg[dp->arg_index].a.a_double;
+
+                    if (isnand (arg))
+                      {
+                        if (dp->conversion == 'A')
+                          {
+                            *p++ = 'N'; *p++ = 'A'; *p++ = 'N';
+                          }
+                        else
+                          {
+                            *p++ = 'n'; *p++ = 'a'; *p++ = 'n';
+                          }
+                      }
+                    else
+                      {
+                        int sign = 0;
+
+                        if (signbit (arg)) /* arg < 0.0 or negative zero */
+                          {
+                            sign = -1;
+                            arg = -arg;
+                          }
+
+                        if (sign < 0)
+                          *p++ = '-';
+                        else if (flags & FLAG_SHOWSIGN)
+                          *p++ = '+';
+                        else if (flags & FLAG_SPACE)
+                          *p++ = ' ';
+
+                        if (arg > 0.0 && arg + arg == arg)
+                          {
+                            if (dp->conversion == 'A')
+                              {
+                                *p++ = 'I'; *p++ = 'N'; *p++ = 'F';
+                              }
+                            else
+                              {
+                                *p++ = 'i'; *p++ = 'n'; *p++ = 'f';
+                              }
+                          }
+                        else
+                          {
+                            int exponent;
+                            double mantissa;
+
+                            if (arg > 0.0)
+                              mantissa = printf_frexp (arg, &exponent);
+                            else
+                              {
+                                exponent = 0;
+                                mantissa = 0.0;
+                              }
+
+                            if (has_precision
+                                && precision < (unsigned int) ((DBL_DIG + 1) * 0.831) + 1)
+                              {
+                                /* Round the mantissa.  */
+                                double tail = mantissa;
+                                size_t q;
+
+                                for (q = precision; ; q--)
+                                  {
+                                    int digit = (int) tail;
+                                    tail -= digit;
+                                    if (q == 0)
+                                      {
+                                        if (digit & 1 ? tail >= 0.5 : tail > 0.5)
+                                          tail = 1 - tail;
+                                        else
+                                          tail = - tail;
+                                        break;
+                                      }
+                                    tail *= 16.0;
+                                  }
+                                if (tail != 0.0)
+                                  for (q = precision; q > 0; q--)
+                                    tail *= 0.0625;
+                                mantissa += tail;
+                              }
+
+                            *p++ = '0';
+                            *p++ = dp->conversion - 'A' + 'X';
+                            pad_ptr = p;
+                            {
+                              int digit;
+
+                              digit = (int) mantissa;
+                              mantissa -= digit;
+                              *p++ = '0' + digit;
+                              if ((flags & FLAG_ALT)
+                                  || mantissa > 0.0 || precision > 0)
+                                {
+                                  *p++ = decimal_point_char ();
+                                  /* This loop terminates because we assume
+                                     that FLT_RADIX is a power of 2.  */
+                                  while (mantissa > 0.0)
+                                    {
+                                      mantissa *= 16.0;
+                                      digit = (int) mantissa;
+                                      mantissa -= digit;
+                                      *p++ = digit
+                                             + (digit < 10
+                                                ? '0'
+                                                : dp->conversion - 10);
+                                      if (precision > 0)
+                                        precision--;
+                                    }
+                                  while (precision > 0)
+                                    {
+                                      *p++ = '0';
+                                      precision--;
+                                    }
+                                }
+                              }
+                              *p++ = dp->conversion - 'A' + 'P';
+#  if WIDE_CHAR_VERSION
+                              {
+                                static const wchar_t decimal_format[] =
+                                  { '%', '+', 'd', '\0' };
+                                SNPRINTF (p, 6 + 1, decimal_format, exponent);
+                              }
+                              while (*p != '\0')
+                                p++;
+#  else
+                              if (sizeof (DCHAR_T) == 1)
+                                {
+                                  sprintf ((char *) p, "%+d", exponent);
+                                  while (*p != '\0')
+                                    p++;
+                                }
+                              else
+                                {
+                                  char expbuf[6 + 1];
+                                  const char *ep;
+                                  sprintf (expbuf, "%+d", exponent);
+                                  for (ep = expbuf; (*p = *ep) != '\0'; ep++)
+                                    p++;
+                                }
+#  endif
+                          }
+                      }
+# else
+                    abort ();
+# endif
+                  }
+                /* The generated string now extends from tmp to p, with the
+                   zero padding insertion point being at pad_ptr.  */
+                if (has_width && p - tmp < width)
+                  {
+                    size_t pad = width - (p - tmp);
+                    DCHAR_T *end = p + pad;
+
+                    if (flags & FLAG_LEFT)
+                      {
+                        /* Pad with spaces on the right.  */
+                        for (; pad > 0; pad--)
+                          *p++ = ' ';
+                      }
+                    else if ((flags & FLAG_ZERO) && pad_ptr != NULL)
+                      {
+                        /* Pad with zeroes.  */
+                        DCHAR_T *q = end;
+
+                        while (p > pad_ptr)
+                          *--q = *--p;
+                        for (; pad > 0; pad--)
+                          *p++ = '0';
+                      }
+                    else
+                      {
+                        /* Pad with spaces on the left.  */
+                        DCHAR_T *q = end;
+
+                        while (p > tmp)
+                          *--q = *--p;
+                        for (; pad > 0; pad--)
+                          *p++ = ' ';
+                      }
+
+                    p = end;
+                  }
+
+                {
+                  size_t count = p - tmp;
+
+                  if (count >= tmp_length)
+                    /* tmp_length was incorrectly calculated - fix the
+                       code above!  */
+                    abort ();
+
+                  /* Make room for the result.  */
+                  if (count >= allocated - length)
+                    {
+                      size_t n = xsum (length, count);
+
+                      ENSURE_ALLOCATION (n);
+                    }
+
+                  /* Append the result.  */
+                  memcpy (result + length, tmp, count * sizeof (DCHAR_T));
+                  if (tmp != tmpbuf)
+                    free (tmp);
+                  length += count;
+                }
+              }
+#endif
+#if (NEED_PRINTF_INFINITE_DOUBLE || NEED_PRINTF_DOUBLE || NEED_PRINTF_INFINITE_LONG_DOUBLE || NEED_PRINTF_LONG_DOUBLE) && !defined IN_LIBINTL
+            else if ((dp->conversion == 'f' || dp->conversion == 'F'
+                      || dp->conversion == 'e' || dp->conversion == 'E'
+                      || dp->conversion == 'g' || dp->conversion == 'G'
+                      || dp->conversion == 'a' || dp->conversion == 'A')
+                     && (0
+# if NEED_PRINTF_DOUBLE
+                         || a.arg[dp->arg_index].type == TYPE_DOUBLE
+# elif NEED_PRINTF_INFINITE_DOUBLE
+                         || (a.arg[dp->arg_index].type == TYPE_DOUBLE
+                             /* The systems (mingw) which produce wrong output
+                                for Inf, -Inf, and NaN also do so for -0.0.
+                                Therefore we treat this case here as well.  */
+                             && is_infinite_or_zero (a.arg[dp->arg_index].a.a_double))
+# endif
+# if NEED_PRINTF_LONG_DOUBLE
+                         || a.arg[dp->arg_index].type == TYPE_LONGDOUBLE
+# elif NEED_PRINTF_INFINITE_LONG_DOUBLE
+                         || (a.arg[dp->arg_index].type == TYPE_LONGDOUBLE
+                             /* Some systems produce wrong output for Inf,
+                                -Inf, and NaN.  */
+                             && is_infinitel (a.arg[dp->arg_index].a.a_longdouble))
+# endif
+                        ))
+              {
+# if (NEED_PRINTF_DOUBLE || NEED_PRINTF_INFINITE_DOUBLE) && (NEED_PRINTF_LONG_DOUBLE || NEED_PRINTF_INFINITE_LONG_DOUBLE)
+                arg_type type = a.arg[dp->arg_index].type;
+# endif
+                int flags = dp->flags;
+                int has_width;
+                size_t width;
+                int has_precision;
+                size_t precision;
+                size_t tmp_length;
+                DCHAR_T tmpbuf[700];
+                DCHAR_T *tmp;
+                DCHAR_T *pad_ptr;
+                DCHAR_T *p;
+
+                has_width = 0;
+                width = 0;
+                if (dp->width_start != dp->width_end)
+                  {
+                    if (dp->width_arg_index != ARG_NONE)
+                      {
+                        int arg;
+
+                        if (!(a.arg[dp->width_arg_index].type == TYPE_INT))
+                          abort ();
+                        arg = a.arg[dp->width_arg_index].a.a_int;
+                        if (arg < 0)
+                          {
+                            /* "A negative field width is taken as a '-' flag
+                                followed by a positive field width."  */
+                            flags |= FLAG_LEFT;
+                            width = (unsigned int) (-arg);
+                          }
+                        else
+                          width = arg;
+                      }
+                    else
+                      {
+                        const FCHAR_T *digitp = dp->width_start;
+
+                        do
+                          width = xsum (xtimes (width, 10), *digitp++ - '0');
+                        while (digitp != dp->width_end);
+                      }
+                    has_width = 1;
+                  }
+
+                has_precision = 0;
+                precision = 0;
+                if (dp->precision_start != dp->precision_end)
+                  {
+                    if (dp->precision_arg_index != ARG_NONE)
+                      {
+                        int arg;
+
+                        if (!(a.arg[dp->precision_arg_index].type == TYPE_INT))
+                          abort ();
+                        arg = a.arg[dp->precision_arg_index].a.a_int;
+                        /* "A negative precision is taken as if the precision
+                            were omitted."  */
+                        if (arg >= 0)
+                          {
+                            precision = arg;
+                            has_precision = 1;
+                          }
+                      }
+                    else
+                      {
+                        const FCHAR_T *digitp = dp->precision_start + 1;
+
+                        precision = 0;
+                        while (digitp != dp->precision_end)
+                          precision = xsum (xtimes (precision, 10), *digitp++ - '0');
+                        has_precision = 1;
+                      }
+                  }
+
+                /* POSIX specifies the default precision to be 6 for %f, %F,
+                   %e, %E, but not for %g, %G.  Implementations appear to use
+                   the same default precision also for %g, %G.  */
+                if (!has_precision)
+                  precision = 6;
+
+                /* Allocate a temporary buffer of sufficient size.  */
+# if NEED_PRINTF_DOUBLE && NEED_PRINTF_LONG_DOUBLE
+                tmp_length = (type == TYPE_LONGDOUBLE ? LDBL_DIG + 1 : DBL_DIG + 1);
+# elif NEED_PRINTF_INFINITE_DOUBLE && NEED_PRINTF_LONG_DOUBLE
+                tmp_length = (type == TYPE_LONGDOUBLE ? LDBL_DIG + 1 : 0);
+# elif NEED_PRINTF_LONG_DOUBLE
+                tmp_length = LDBL_DIG + 1;
+# elif NEED_PRINTF_DOUBLE
+                tmp_length = DBL_DIG + 1;
+# else
+                tmp_length = 0;
+# endif
+                if (tmp_length < precision)
+                  tmp_length = precision;
+# if NEED_PRINTF_LONG_DOUBLE
+#  if NEED_PRINTF_DOUBLE || NEED_PRINTF_INFINITE_DOUBLE
+                if (type == TYPE_LONGDOUBLE)
+#  endif
+                  if (dp->conversion == 'f' || dp->conversion == 'F')
+                    {
+                      long double arg = a.arg[dp->arg_index].a.a_longdouble;
+                      if (!(isnanl (arg) || arg + arg == arg))
+                        {
+                          /* arg is finite and nonzero.  */
+                          int exponent = floorlog10l (arg < 0 ? -arg : arg);
+                          if (exponent >= 0 && tmp_length < exponent + precision)
+                            tmp_length = exponent + precision;
+                        }
+                    }
+# endif
+# if NEED_PRINTF_DOUBLE
+#  if NEED_PRINTF_LONG_DOUBLE || NEED_PRINTF_INFINITE_LONG_DOUBLE
+                if (type == TYPE_DOUBLE)
+#  endif
+                  if (dp->conversion == 'f' || dp->conversion == 'F')
+                    {
+                      double arg = a.arg[dp->arg_index].a.a_double;
+                      if (!(isnand (arg) || arg + arg == arg))
+                        {
+                          /* arg is finite and nonzero.  */
+                          int exponent = floorlog10 (arg < 0 ? -arg : arg);
+                          if (exponent >= 0 && tmp_length < exponent + precision)
+                            tmp_length = exponent + precision;
+                        }
+                    }
+# endif
+                /* Account for sign, decimal point etc. */
+                tmp_length = xsum (tmp_length, 12);
+
+                if (tmp_length < width)
+                  tmp_length = width;
+
+                tmp_length = xsum (tmp_length, 1); /* account for trailing NUL */
+
+                if (tmp_length <= sizeof (tmpbuf) / sizeof (DCHAR_T))
+                  tmp = tmpbuf;
+                else
+                  {
+                    size_t tmp_memsize = xtimes (tmp_length, sizeof (DCHAR_T));
+
+                    if (size_overflow_p (tmp_memsize))
+                      /* Overflow, would lead to out of memory.  */
+                      goto out_of_memory;
+                    tmp = (DCHAR_T *) malloc (tmp_memsize);
+                    if (tmp == NULL)
+                      /* Out of memory.  */
+                      goto out_of_memory;
+                  }
+
+                pad_ptr = NULL;
+                p = tmp;
+
+# if NEED_PRINTF_LONG_DOUBLE || NEED_PRINTF_INFINITE_LONG_DOUBLE
+#  if NEED_PRINTF_DOUBLE || NEED_PRINTF_INFINITE_DOUBLE
+                if (type == TYPE_LONGDOUBLE)
+#  endif
+                  {
+                    long double arg = a.arg[dp->arg_index].a.a_longdouble;
+
+                    if (isnanl (arg))
+                      {
+                        if (dp->conversion >= 'A' && dp->conversion <= 'Z')
+                          {
+                            *p++ = 'N'; *p++ = 'A'; *p++ = 'N';
+                          }
+                        else
+                          {
+                            *p++ = 'n'; *p++ = 'a'; *p++ = 'n';
+                          }
+                      }
+                    else
+                      {
+                        int sign = 0;
+                        DECL_LONG_DOUBLE_ROUNDING
+
+                        BEGIN_LONG_DOUBLE_ROUNDING ();
+
+                        if (signbit (arg)) /* arg < 0.0L or negative zero */
+                          {
+                            sign = -1;
+                            arg = -arg;
+                          }
+
+                        if (sign < 0)
+                          *p++ = '-';
+                        else if (flags & FLAG_SHOWSIGN)
+                          *p++ = '+';
+                        else if (flags & FLAG_SPACE)
+                          *p++ = ' ';
+
+                        if (arg > 0.0L && arg + arg == arg)
+                          {
+                            if (dp->conversion >= 'A' && dp->conversion <= 'Z')
+                              {
+                                *p++ = 'I'; *p++ = 'N'; *p++ = 'F';
+                              }
+                            else
+                              {
+                                *p++ = 'i'; *p++ = 'n'; *p++ = 'f';
+                              }
+                          }
+                        else
+                          {
+#  if NEED_PRINTF_LONG_DOUBLE
+                            pad_ptr = p;
+
+                            if (dp->conversion == 'f' || dp->conversion == 'F')
+                              {
+                                char *digits;
+                                size_t ndigits;
+
+                                digits =
+                                  scale10_round_decimal_long_double (arg, precision);
+                                if (digits == NULL)
+                                  {
+                                    END_LONG_DOUBLE_ROUNDING ();
+                                    goto out_of_memory;
+                                  }
+                                ndigits = strlen (digits);
+
+                                if (ndigits > precision)
+                                  do
+                                    {
+                                      --ndigits;
+                                      *p++ = digits[ndigits];
+                                    }
+                                  while (ndigits > precision);
+                                else
+                                  *p++ = '0';
+                                /* Here ndigits <= precision.  */
+                                if ((flags & FLAG_ALT) || precision > 0)
+                                  {
+                                    *p++ = decimal_point_char ();
+                                    for (; precision > ndigits; precision--)
+                                      *p++ = '0';
+                                    while (ndigits > 0)
+                                      {
+                                        --ndigits;
+                                        *p++ = digits[ndigits];
+                                      }
+                                  }
+
+                                free (digits);
+                              }
+                            else if (dp->conversion == 'e' || dp->conversion == 'E')
+                              {
+                                int exponent;
+
+                                if (arg == 0.0L)
+                                  {
+                                    exponent = 0;
+                                    *p++ = '0';
+                                    if ((flags & FLAG_ALT) || precision > 0)
+                                      {
+                                        *p++ = decimal_point_char ();
+                                        for (; precision > 0; precision--)
+                                          *p++ = '0';
+                                      }
+                                  }
+                                else
+                                  {
+                                    /* arg > 0.0L.  */
+                                    int adjusted;
+                                    char *digits;
+                                    size_t ndigits;
+
+                                    exponent = floorlog10l (arg);
+                                    adjusted = 0;
+                                    for (;;)
+                                      {
+                                        digits =
+                                          scale10_round_decimal_long_double (arg,
+                                                                             (int)precision - exponent);
+                                        if (digits == NULL)
+                                          {
+                                            END_LONG_DOUBLE_ROUNDING ();
+                                            goto out_of_memory;
+                                          }
+                                        ndigits = strlen (digits);
+
+                                        if (ndigits == precision + 1)
+                                          break;
+                                        if (ndigits < precision
+                                            || ndigits > precision + 2)
+                                          /* The exponent was not guessed
+                                             precisely enough.  */
+                                          abort ();
+                                        if (adjusted)
+                                          /* None of two values of exponent is
+                                             the right one.  Prevent an endless
+                                             loop.  */
+                                          abort ();
+                                        free (digits);
+                                        if (ndigits == precision)
+                                          exponent -= 1;
+                                        else
+                                          exponent += 1;
+                                        adjusted = 1;
+                                      }
+
+                                    /* Here ndigits = precision+1.  */
+                                    *p++ = digits[--ndigits];
+                                    if ((flags & FLAG_ALT) || precision > 0)
+                                      {
+                                        *p++ = decimal_point_char ();
+                                        while (ndigits > 0)
+                                          {
+                                            --ndigits;
+                                            *p++ = digits[ndigits];
+                                          }
+                                      }
+
+                                    free (digits);
+                                  }
+
+                                *p++ = dp->conversion; /* 'e' or 'E' */
+#   if WIDE_CHAR_VERSION
+                                {
+                                  static const wchar_t decimal_format[] =
+                                    { '%', '+', '.', '2', 'd', '\0' };
+                                  SNPRINTF (p, 6 + 1, decimal_format, exponent);
+                                }
+                                while (*p != '\0')
+                                  p++;
+#   else
+                                if (sizeof (DCHAR_T) == 1)
+                                  {
+                                    sprintf ((char *) p, "%+.2d", exponent);
+                                    while (*p != '\0')
+                                      p++;
+                                  }
+                                else
+                                  {
+                                    char expbuf[6 + 1];
+                                    const char *ep;
+                                    sprintf (expbuf, "%+.2d", exponent);
+                                    for (ep = expbuf; (*p = *ep) != '\0'; ep++)
+                                      p++;
+                                  }
+#   endif
+                              }
+                            else if (dp->conversion == 'g' || dp->conversion == 'G')
+                              {
+                                if (precision == 0)
+                                  precision = 1;
+                                /* precision >= 1.  */
+
+                                if (arg == 0.0L)
+                                  /* The exponent is 0, >= -4, < precision.
+                                     Use fixed-point notation.  */
+                                  {
+                                    size_t ndigits = precision;
+                                    /* Number of trailing zeroes that have to be
+                                       dropped.  */
+                                    size_t nzeroes =
+                                      (flags & FLAG_ALT ? 0 : precision - 1);
+
+                                    --ndigits;
+                                    *p++ = '0';
+                                    if ((flags & FLAG_ALT) || ndigits > nzeroes)
+                                      {
+                                        *p++ = decimal_point_char ();
+                                        while (ndigits > nzeroes)
+                                          {
+                                            --ndigits;
+                                            *p++ = '0';
+                                          }
+                                      }
+                                  }
+                                else
+                                  {
+                                    /* arg > 0.0L.  */
+                                    int exponent;
+                                    int adjusted;
+                                    char *digits;
+                                    size_t ndigits;
+                                    size_t nzeroes;
+
+                                    exponent = floorlog10l (arg);
+                                    adjusted = 0;
+                                    for (;;)
+                                      {
+                                        digits =
+                                          scale10_round_decimal_long_double (arg,
+                                                                             (int)(precision - 1) - exponent);
+                                        if (digits == NULL)
+                                          {
+                                            END_LONG_DOUBLE_ROUNDING ();
+                                            goto out_of_memory;
+                                          }
+                                        ndigits = strlen (digits);
+
+                                        if (ndigits == precision)
+                                          break;
+                                        if (ndigits < precision - 1
+                                            || ndigits > precision + 1)
+                                          /* The exponent was not guessed
+                                             precisely enough.  */
+                                          abort ();
+                                        if (adjusted)
+                                          /* None of two values of exponent is
+                                             the right one.  Prevent an endless
+                                             loop.  */
+                                          abort ();
+                                        free (digits);
+                                        if (ndigits < precision)
+                                          exponent -= 1;
+                                        else
+                                          exponent += 1;
+                                        adjusted = 1;
+                                      }
+                                    /* Here ndigits = precision.  */
+
+                                    /* Determine the number of trailing zeroes
+                                       that have to be dropped.  */
+                                    nzeroes = 0;
+                                    if ((flags & FLAG_ALT) == 0)
+                                      while (nzeroes < ndigits
+                                             && digits[nzeroes] == '0')
+                                        nzeroes++;
+
+                                    /* The exponent is now determined.  */
+                                    if (exponent >= -4
+                                        && exponent < (long)precision)
+                                      {
+                                        /* Fixed-point notation:
+                                           max(exponent,0)+1 digits, then the
+                                           decimal point, then the remaining
+                                           digits without trailing zeroes.  */
+                                        if (exponent >= 0)
+                                          {
+                                            size_t count = exponent + 1;
+                                            /* Note: count <= precision = ndigits.  */
+                                            for (; count > 0; count--)
+                                              *p++ = digits[--ndigits];
+                                            if ((flags & FLAG_ALT) || ndigits > nzeroes)
+                                              {
+                                                *p++ = decimal_point_char ();
+                                                while (ndigits > nzeroes)
+                                                  {
+                                                    --ndigits;
+                                                    *p++ = digits[ndigits];
+                                                  }
+                                              }
+                                          }
+                                        else
+                                          {
+                                            size_t count = -exponent - 1;
+                                            *p++ = '0';
+                                            *p++ = decimal_point_char ();
+                                            for (; count > 0; count--)
+                                              *p++ = '0';
+                                            while (ndigits > nzeroes)
+                                              {
+                                                --ndigits;
+                                                *p++ = digits[ndigits];
+                                              }
+                                          }
+                                      }
+                                    else
+                                      {
+                                        /* Exponential notation.  */
+                                        *p++ = digits[--ndigits];
+                                        if ((flags & FLAG_ALT) || ndigits > nzeroes)
+                                          {
+                                            *p++ = decimal_point_char ();
+                                            while (ndigits > nzeroes)
+                                              {
+                                                --ndigits;
+                                                *p++ = digits[ndigits];
+                                              }
+                                          }
+                                        *p++ = dp->conversion - 'G' + 'E'; /* 'e' or 'E' */
+#   if WIDE_CHAR_VERSION
+                                        {
+                                          static const wchar_t decimal_format[] =
+                                            { '%', '+', '.', '2', 'd', '\0' };
+                                          SNPRINTF (p, 6 + 1, decimal_format, exponent);
+                                        }
+                                        while (*p != '\0')
+                                          p++;
+#   else
+                                        if (sizeof (DCHAR_T) == 1)
+                                          {
+                                            sprintf ((char *) p, "%+.2d", exponent);
+                                            while (*p != '\0')
+                                              p++;
+                                          }
+                                        else
+                                          {
+                                            char expbuf[6 + 1];
+                                            const char *ep;
+                                            sprintf (expbuf, "%+.2d", exponent);
+                                            for (ep = expbuf; (*p = *ep) != '\0'; ep++)
+                                              p++;
+                                          }
+#   endif
+                                      }
+
+                                    free (digits);
+                                  }
+                              }
+                            else
+                              abort ();
+#  else
+                            /* arg is finite.  */
+                            abort ();
+#  endif
+                          }
+
+                        END_LONG_DOUBLE_ROUNDING ();
+                      }
+                  }
+#  if NEED_PRINTF_DOUBLE || NEED_PRINTF_INFINITE_DOUBLE
+                else
+#  endif
+# endif
+# if NEED_PRINTF_DOUBLE || NEED_PRINTF_INFINITE_DOUBLE
+                  {
+                    double arg = a.arg[dp->arg_index].a.a_double;
+
+                    if (isnand (arg))
+                      {
+                        if (dp->conversion >= 'A' && dp->conversion <= 'Z')
+                          {
+                            *p++ = 'N'; *p++ = 'A'; *p++ = 'N';
+                          }
+                        else
+                          {
+                            *p++ = 'n'; *p++ = 'a'; *p++ = 'n';
+                          }
+                      }
+                    else
+                      {
+                        int sign = 0;
+
+                        if (signbit (arg)) /* arg < 0.0 or negative zero */
+                          {
+                            sign = -1;
+                            arg = -arg;
+                          }
+
+                        if (sign < 0)
+                          *p++ = '-';
+                        else if (flags & FLAG_SHOWSIGN)
+                          *p++ = '+';
+                        else if (flags & FLAG_SPACE)
+                          *p++ = ' ';
+
+                        if (arg > 0.0 && arg + arg == arg)
+                          {
+                            if (dp->conversion >= 'A' && dp->conversion <= 'Z')
+                              {
+                                *p++ = 'I'; *p++ = 'N'; *p++ = 'F';
+                              }
+                            else
+                              {
+                                *p++ = 'i'; *p++ = 'n'; *p++ = 'f';
+                              }
+                          }
+                        else
+                          {
+#  if NEED_PRINTF_DOUBLE
+                            pad_ptr = p;
+
+                            if (dp->conversion == 'f' || dp->conversion == 'F')
+                              {
+                                char *digits;
+                                size_t ndigits;
+
+                                digits =
+                                  scale10_round_decimal_double (arg, precision);
+                                if (digits == NULL)
+                                  goto out_of_memory;
+                                ndigits = strlen (digits);
+
+                                if (ndigits > precision)
+                                  do
+                                    {
+                                      --ndigits;
+                                      *p++ = digits[ndigits];
+                                    }
+                                  while (ndigits > precision);
+                                else
+                                  *p++ = '0';
+                                /* Here ndigits <= precision.  */
+                                if ((flags & FLAG_ALT) || precision > 0)
+                                  {
+                                    *p++ = decimal_point_char ();
+                                    for (; precision > ndigits; precision--)
+                                      *p++ = '0';
+                                    while (ndigits > 0)
+                                      {
+                                        --ndigits;
+                                        *p++ = digits[ndigits];
+                                      }
+                                  }
+
+                                free (digits);
+                              }
+                            else if (dp->conversion == 'e' || dp->conversion == 'E')
+                              {
+                                int exponent;
+
+                                if (arg == 0.0)
+                                  {
+                                    exponent = 0;
+                                    *p++ = '0';
+                                    if ((flags & FLAG_ALT) || precision > 0)
+                                      {
+                                        *p++ = decimal_point_char ();
+                                        for (; precision > 0; precision--)
+                                          *p++ = '0';
+                                      }
+                                  }
+                                else
+                                  {
+                                    /* arg > 0.0.  */
+                                    int adjusted;
+                                    char *digits;
+                                    size_t ndigits;
+
+                                    exponent = floorlog10 (arg);
+                                    adjusted = 0;
+                                    for (;;)
+                                      {
+                                        digits =
+                                          scale10_round_decimal_double (arg,
+                                                                        (int)precision - exponent);
+                                        if (digits == NULL)
+                                          goto out_of_memory;
+                                        ndigits = strlen (digits);
+
+                                        if (ndigits == precision + 1)
+                                          break;
+                                        if (ndigits < precision
+                                            || ndigits > precision + 2)
+                                          /* The exponent was not guessed
+                                             precisely enough.  */
+                                          abort ();
+                                        if (adjusted)
+                                          /* None of two values of exponent is
+                                             the right one.  Prevent an endless
+                                             loop.  */
+                                          abort ();
+                                        free (digits);
+                                        if (ndigits == precision)
+                                          exponent -= 1;
+                                        else
+                                          exponent += 1;
+                                        adjusted = 1;
+                                      }
+
+                                    /* Here ndigits = precision+1.  */
+                                    *p++ = digits[--ndigits];
+                                    if ((flags & FLAG_ALT) || precision > 0)
+                                      {
+                                        *p++ = decimal_point_char ();
+                                        while (ndigits > 0)
+                                          {
+                                            --ndigits;
+                                            *p++ = digits[ndigits];
+                                          }
+                                      }
+
+                                    free (digits);
+                                  }
+
+                                *p++ = dp->conversion; /* 'e' or 'E' */
+#   if WIDE_CHAR_VERSION
+                                {
+                                  static const wchar_t decimal_format[] =
+                                    /* Produce the same number of exponent digits
+                                       as the native printf implementation.  */
+#    if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
+                                    { '%', '+', '.', '3', 'd', '\0' };
+#    else
+                                    { '%', '+', '.', '2', 'd', '\0' };
+#    endif
+                                  SNPRINTF (p, 6 + 1, decimal_format, exponent);
+                                }
+                                while (*p != '\0')
+                                  p++;
+#   else
+                                {
+                                  static const char decimal_format[] =
+                                    /* Produce the same number of exponent digits
+                                       as the native printf implementation.  */
+#    if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
+                                    "%+.3d";
+#    else
+                                    "%+.2d";
+#    endif
+                                  if (sizeof (DCHAR_T) == 1)
+                                    {
+                                      sprintf ((char *) p, decimal_format, exponent);
+                                      while (*p != '\0')
+                                        p++;
+                                    }
+                                  else
+                                    {
+                                      char expbuf[6 + 1];
+                                      const char *ep;
+                                      sprintf (expbuf, decimal_format, exponent);
+                                      for (ep = expbuf; (*p = *ep) != '\0'; ep++)
+                                        p++;
+                                    }
+                                }
+#   endif
+                              }
+                            else if (dp->conversion == 'g' || dp->conversion == 'G')
+                              {
+                                if (precision == 0)
+                                  precision = 1;
+                                /* precision >= 1.  */
+
+                                if (arg == 0.0)
+                                  /* The exponent is 0, >= -4, < precision.
+                                     Use fixed-point notation.  */
+                                  {
+                                    size_t ndigits = precision;
+                                    /* Number of trailing zeroes that have to be
+                                       dropped.  */
+                                    size_t nzeroes =
+                                      (flags & FLAG_ALT ? 0 : precision - 1);
+
+                                    --ndigits;
+                                    *p++ = '0';
+                                    if ((flags & FLAG_ALT) || ndigits > nzeroes)
+                                      {
+                                        *p++ = decimal_point_char ();
+                                        while (ndigits > nzeroes)
+                                          {
+                                            --ndigits;
+                                            *p++ = '0';
+                                          }
+                                      }
+                                  }
+                                else
+                                  {
+                                    /* arg > 0.0.  */
+                                    int exponent;
+                                    int adjusted;
+                                    char *digits;
+                                    size_t ndigits;
+                                    size_t nzeroes;
+
+                                    exponent = floorlog10 (arg);
+                                    adjusted = 0;
+                                    for (;;)
+                                      {
+                                        digits =
+                                          scale10_round_decimal_double (arg,
+                                                                        (int)(precision - 1) - exponent);
+                                        if (digits == NULL)
+                                          goto out_of_memory;
+                                        ndigits = strlen (digits);
+
+                                        if (ndigits == precision)
+                                          break;
+                                        if (ndigits < precision - 1
+                                            || ndigits > precision + 1)
+                                          /* The exponent was not guessed
+                                             precisely enough.  */
+                                          abort ();
+                                        if (adjusted)
+                                          /* None of two values of exponent is
+                                             the right one.  Prevent an endless
+                                             loop.  */
+                                          abort ();
+                                        free (digits);
+                                        if (ndigits < precision)
+                                          exponent -= 1;
+                                        else
+                                          exponent += 1;
+                                        adjusted = 1;
+                                      }
+                                    /* Here ndigits = precision.  */
+
+                                    /* Determine the number of trailing zeroes
+                                       that have to be dropped.  */
+                                    nzeroes = 0;
+                                    if ((flags & FLAG_ALT) == 0)
+                                      while (nzeroes < ndigits
+                                             && digits[nzeroes] == '0')
+                                        nzeroes++;
+
+                                    /* The exponent is now determined.  */
+                                    if (exponent >= -4
+                                        && exponent < (long)precision)
+                                      {
+                                        /* Fixed-point notation:
+                                           max(exponent,0)+1 digits, then the
+                                           decimal point, then the remaining
+                                           digits without trailing zeroes.  */
+                                        if (exponent >= 0)
+                                          {
+                                            size_t count = exponent + 1;
+                                            /* Note: count <= precision = ndigits.  */
+                                            for (; count > 0; count--)
+                                              *p++ = digits[--ndigits];
+                                            if ((flags & FLAG_ALT) || ndigits > nzeroes)
+                                              {
+                                                *p++ = decimal_point_char ();
+                                                while (ndigits > nzeroes)
+                                                  {
+                                                    --ndigits;
+                                                    *p++ = digits[ndigits];
+                                                  }
+                                              }
+                                          }
+                                        else
+                                          {
+                                            size_t count = -exponent - 1;
+                                            *p++ = '0';
+                                            *p++ = decimal_point_char ();
+                                            for (; count > 0; count--)
+                                              *p++ = '0';
+                                            while (ndigits > nzeroes)
+                                              {
+                                                --ndigits;
+                                                *p++ = digits[ndigits];
+                                              }
+                                          }
+                                      }
+                                    else
+                                      {
+                                        /* Exponential notation.  */
+                                        *p++ = digits[--ndigits];
+                                        if ((flags & FLAG_ALT) || ndigits > nzeroes)
+                                          {
+                                            *p++ = decimal_point_char ();
+                                            while (ndigits > nzeroes)
+                                              {
+                                                --ndigits;
+                                                *p++ = digits[ndigits];
+                                              }
+                                          }
+                                        *p++ = dp->conversion - 'G' + 'E'; /* 'e' or 'E' */
+#   if WIDE_CHAR_VERSION
+                                        {
+                                          static const wchar_t decimal_format[] =
+                                            /* Produce the same number of exponent digits
+                                               as the native printf implementation.  */
+#    if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
+                                            { '%', '+', '.', '3', 'd', '\0' };
+#    else
+                                            { '%', '+', '.', '2', 'd', '\0' };
+#    endif
+                                          SNPRINTF (p, 6 + 1, decimal_format, exponent);
+                                        }
+                                        while (*p != '\0')
+                                          p++;
+#   else
+                                        {
+                                          static const char decimal_format[] =
+                                            /* Produce the same number of exponent digits
+                                               as the native printf implementation.  */
+#    if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
+                                            "%+.3d";
+#    else
+                                            "%+.2d";
+#    endif
+                                          if (sizeof (DCHAR_T) == 1)
+                                            {
+                                              sprintf ((char *) p, decimal_format, exponent);
+                                              while (*p != '\0')
+                                                p++;
+                                            }
+                                          else
+                                            {
+                                              char expbuf[6 + 1];
+                                              const char *ep;
+                                              sprintf (expbuf, decimal_format, exponent);
+                                              for (ep = expbuf; (*p = *ep) != '\0'; ep++)
+                                                p++;
+                                            }
+                                        }
+#   endif
+                                      }
+
+                                    free (digits);
+                                  }
+                              }
+                            else
+                              abort ();
+#  else
+                            /* arg is finite.  */
+                            if (!(arg == 0.0))
+                              abort ();
+
+                            pad_ptr = p;
+
+                            if (dp->conversion == 'f' || dp->conversion == 'F')
+                              {
+                                *p++ = '0';
+                                if ((flags & FLAG_ALT) || precision > 0)
+                                  {
+                                    *p++ = decimal_point_char ();
+                                    for (; precision > 0; precision--)
+                                      *p++ = '0';
+                                  }
+                              }
+                            else if (dp->conversion == 'e' || dp->conversion == 'E')
+                              {
+                                *p++ = '0';
+                                if ((flags & FLAG_ALT) || precision > 0)
+                                  {
+                                    *p++ = decimal_point_char ();
+                                    for (; precision > 0; precision--)
+                                      *p++ = '0';
+                                  }
+                                *p++ = dp->conversion; /* 'e' or 'E' */
+                                *p++ = '+';
+                                /* Produce the same number of exponent digits as
+                                   the native printf implementation.  */
+#   if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
+                                *p++ = '0';
+#   endif
+                                *p++ = '0';
+                                *p++ = '0';
+                              }
+                            else if (dp->conversion == 'g' || dp->conversion == 'G')
+                              {
+                                *p++ = '0';
+                                if (flags & FLAG_ALT)
+                                  {
+                                    size_t ndigits =
+                                      (precision > 0 ? precision - 1 : 0);
+                                    *p++ = decimal_point_char ();
+                                    for (; ndigits > 0; --ndigits)
+                                      *p++ = '0';
+                                  }
+                              }
+                            else
+                              abort ();
+#  endif
+                          }
+                      }
+                  }
+# endif
+
+                /* The generated string now extends from tmp to p, with the
+                   zero padding insertion point being at pad_ptr.  */
+                if (has_width && p - tmp < width)
+                  {
+                    size_t pad = width - (p - tmp);
+                    DCHAR_T *end = p + pad;
+
+                    if (flags & FLAG_LEFT)
+                      {
+                        /* Pad with spaces on the right.  */
+                        for (; pad > 0; pad--)
+                          *p++ = ' ';
+                      }
+                    else if ((flags & FLAG_ZERO) && pad_ptr != NULL)
+                      {
+                        /* Pad with zeroes.  */
+                        DCHAR_T *q = end;
+
+                        while (p > pad_ptr)
+                          *--q = *--p;
+                        for (; pad > 0; pad--)
+                          *p++ = '0';
+                      }
+                    else
+                      {
+                        /* Pad with spaces on the left.  */
+                        DCHAR_T *q = end;
+
+                        while (p > tmp)
+                          *--q = *--p;
+                        for (; pad > 0; pad--)
+                          *p++ = ' ';
+                      }
+
+                    p = end;
+                  }
+
+                {
+                  size_t count = p - tmp;
+
+                  if (count >= tmp_length)
+                    /* tmp_length was incorrectly calculated - fix the
+                       code above!  */
+                    abort ();
+
+                  /* Make room for the result.  */
+                  if (count >= allocated - length)
+                    {
+                      size_t n = xsum (length, count);
+
+                      ENSURE_ALLOCATION (n);
+                    }
+
+                  /* Append the result.  */
+                  memcpy (result + length, tmp, count * sizeof (DCHAR_T));
+                  if (tmp != tmpbuf)
+                    free (tmp);
+                  length += count;
+                }
+              }
+#endif
+            else
+              {
+                arg_type type = a.arg[dp->arg_index].type;
+                int flags = dp->flags;
+#if !USE_SNPRINTF || !DCHAR_IS_TCHAR || ENABLE_UNISTDIO || NEED_PRINTF_FLAG_LEFTADJUST || NEED_PRINTF_FLAG_ZERO || NEED_PRINTF_UNBOUNDED_PRECISION
+                int has_width;
+                size_t width;
+#endif
+#if !USE_SNPRINTF || NEED_PRINTF_UNBOUNDED_PRECISION
+                int has_precision;
+                size_t precision;
+#endif
+#if NEED_PRINTF_UNBOUNDED_PRECISION
+                int prec_ourselves;
+#else
+#               define prec_ourselves 0
+#endif
+#if NEED_PRINTF_FLAG_LEFTADJUST
+#               define pad_ourselves 1
+#elif !DCHAR_IS_TCHAR || ENABLE_UNISTDIO || NEED_PRINTF_FLAG_ZERO || NEED_PRINTF_UNBOUNDED_PRECISION
+                int pad_ourselves;
+#else
+#               define pad_ourselves 0
+#endif
+                TCHAR_T *fbp;
+                unsigned int prefix_count;
+                int prefixes[2];
+#if !USE_SNPRINTF
+                size_t tmp_length;
+                TCHAR_T tmpbuf[700];
+                TCHAR_T *tmp;
+#endif
+
+#if !USE_SNPRINTF || !DCHAR_IS_TCHAR || ENABLE_UNISTDIO || NEED_PRINTF_FLAG_LEFTADJUST || NEED_PRINTF_FLAG_ZERO || NEED_PRINTF_UNBOUNDED_PRECISION
+                has_width = 0;
+                width = 0;
+                if (dp->width_start != dp->width_end)
+                  {
+                    if (dp->width_arg_index != ARG_NONE)
+                      {
+                        int arg;
+
+                        if (!(a.arg[dp->width_arg_index].type == TYPE_INT))
+                          abort ();
+                        arg = a.arg[dp->width_arg_index].a.a_int;
+                        if (arg < 0)
+                          {
+                            /* "A negative field width is taken as a '-' flag
+                                followed by a positive field width."  */
+                            flags |= FLAG_LEFT;
+                            width = (unsigned int) (-arg);
+                          }
+                        else
+                          width = arg;
+                      }
+                    else
+                      {
+                        const FCHAR_T *digitp = dp->width_start;
+
+                        do
+                          width = xsum (xtimes (width, 10), *digitp++ - '0');
+                        while (digitp != dp->width_end);
+                      }
+                    has_width = 1;
+                  }
+#endif
+
+#if !USE_SNPRINTF || NEED_PRINTF_UNBOUNDED_PRECISION
+                has_precision = 0;
+                precision = 6;
+                if (dp->precision_start != dp->precision_end)
+                  {
+                    if (dp->precision_arg_index != ARG_NONE)
+                      {
+                        int arg;
+
+                        if (!(a.arg[dp->precision_arg_index].type == TYPE_INT))
+                          abort ();
+                        arg = a.arg[dp->precision_arg_index].a.a_int;
+                        /* "A negative precision is taken as if the precision
+                            were omitted."  */
+                        if (arg >= 0)
+                          {
+                            precision = arg;
+                            has_precision = 1;
+                          }
+                      }
+                    else
+                      {
+                        const FCHAR_T *digitp = dp->precision_start + 1;
+
+                        precision = 0;
+                        while (digitp != dp->precision_end)
+                          precision = xsum (xtimes (precision, 10), *digitp++ - '0');
+                        has_precision = 1;
+                      }
+                  }
+#endif
+
+#if !USE_SNPRINTF
+                /* Allocate a temporary buffer of sufficient size for calling
+                   sprintf.  */
+                {
                   switch (dp->conversion)
                     {
 
                     case 'd': case 'i': case 'u':
-# ifdef HAVE_LONG_LONG_INT
+# if HAVE_LONG_LONG_INT
                       if (type == TYPE_LONGLONGINT || type == TYPE_ULONGLONGINT)
                         tmp_length =
                           (unsigned int) (sizeof (unsigned long long) * CHAR_BIT
@@ -352,7 +3699,7 @@ VASNPRINTF (CHAR_T *resultbuf, size_t *lengthp, const CHAR_T *format, va_list ar
                       break;
 
                     case 'o':
-# ifdef HAVE_LONG_LONG_INT
+# if HAVE_LONG_LONG_INT
                       if (type == TYPE_LONGLONGINT || type == TYPE_ULONGLONGINT)
                         tmp_length =
                           (unsigned int) (sizeof (unsigned long long) * CHAR_BIT
@@ -380,7 +3727,7 @@ VASNPRINTF (CHAR_T *resultbuf, size_t *lengthp, const CHAR_T *format, va_list ar
                       break;
 
                     case 'x': case 'X':
-# ifdef HAVE_LONG_LONG_INT
+# if HAVE_LONG_LONG_INT
                       if (type == TYPE_LONGLONGINT || type == TYPE_ULONGLONGINT)
                         tmp_length =
                           (unsigned int) (sizeof (unsigned long long) * CHAR_BIT
@@ -408,7 +3755,6 @@ VASNPRINTF (CHAR_T *resultbuf, size_t *lengthp, const CHAR_T *format, va_list ar
                       break;
 
                     case 'f': case 'F':
-# ifdef HAVE_LONG_DOUBLE
                       if (type == TYPE_LONGDOUBLE)
                         tmp_length =
                           (unsigned int) (LDBL_MAX_EXP
@@ -418,7 +3764,6 @@ VASNPRINTF (CHAR_T *resultbuf, size_t *lengthp, const CHAR_T *format, va_list ar
                           + 1 /* turn floor into ceil */
                           + 10; /* sign, decimal point etc. */
                       else
-# endif
                         tmp_length =
                           (unsigned int) (DBL_MAX_EXP
                                           * 0.30103 /* binary -> decimal */
@@ -430,14 +3775,32 @@ VASNPRINTF (CHAR_T *resultbuf, size_t *lengthp, const CHAR_T *format, va_list ar
                       break;
 
                     case 'e': case 'E': case 'g': case 'G':
-                    case 'a': case 'A':
                       tmp_length =
                         12; /* sign, decimal point, exponent etc. */
                       tmp_length = xsum (tmp_length, precision);
                       break;
 
+                    case 'a': case 'A':
+                      if (type == TYPE_LONGDOUBLE)
+                        tmp_length =
+                          (unsigned int) (LDBL_DIG
+                                          * 0.831 /* decimal -> hexadecimal */
+                                         )
+                          + 1; /* turn floor into ceil */
+                      else
+                        tmp_length =
+                          (unsigned int) (DBL_DIG
+                                          * 0.831 /* decimal -> hexadecimal */
+                                         )
+                          + 1; /* turn floor into ceil */
+                      if (tmp_length < precision)
+                        tmp_length = precision;
+                      /* Account for sign, decimal point etc. */
+                      tmp_length = xsum (tmp_length, 12);
+                      break;
+
                     case 'c':
-# if defined HAVE_WINT_T && !WIDE_CHAR_VERSION
+# if HAVE_WINT_T && !WIDE_CHAR_VERSION
                       if (type == TYPE_WIDE_CHAR)
                         tmp_length = MB_CUR_MAX;
                       else
@@ -446,7 +3809,7 @@ VASNPRINTF (CHAR_T *resultbuf, size_t *lengthp, const CHAR_T *format, va_list ar
                       break;
 
                     case 's':
-# ifdef HAVE_WCHAR_T
+# if HAVE_WCHAR_T
                       if (type == TYPE_WIDE_STRING)
                         {
                           tmp_length =
@@ -474,95 +3837,216 @@ VASNPRINTF (CHAR_T *resultbuf, size_t *lengthp, const CHAR_T *format, va_list ar
                       abort ();
                     }
 
+# if ENABLE_UNISTDIO
+                  /* Padding considers the number of characters, therefore the
+                     number of elements after padding may be
+                       > max (tmp_length, width)
+                     but is certainly
+                       <= tmp_length + width.  */
+                  tmp_length = xsum (tmp_length, width);
+# else
+                  /* Padding considers the number of elements, says POSIX.  */
                   if (tmp_length < width)
                     tmp_length = width;
+# endif
 
                   tmp_length = xsum (tmp_length, 1); /* account for trailing NUL */
                 }
 
-                if (tmp_length <= sizeof (tmpbuf) / sizeof (CHAR_T))
+                if (tmp_length <= sizeof (tmpbuf) / sizeof (TCHAR_T))
                   tmp = tmpbuf;
                 else
                   {
-                    size_t tmp_memsize = xtimes (tmp_length, sizeof (CHAR_T));
+                    size_t tmp_memsize = xtimes (tmp_length, sizeof (TCHAR_T));
 
                     if (size_overflow_p (tmp_memsize))
                       /* Overflow, would lead to out of memory.  */
                       goto out_of_memory;
-                    tmp = (CHAR_T *) malloc (tmp_memsize);
+                    tmp = (TCHAR_T *) malloc (tmp_memsize);
                     if (tmp == NULL)
                       /* Out of memory.  */
                       goto out_of_memory;
                   }
 #endif
 
+                /* Decide whether to handle the precision ourselves.  */
+#if NEED_PRINTF_UNBOUNDED_PRECISION
+                switch (dp->conversion)
+                  {
+                  case 'd': case 'i': case 'u':
+                  case 'o':
+                  case 'x': case 'X': case 'p':
+                    prec_ourselves = has_precision && (precision > 0);
+                    break;
+                  default:
+                    prec_ourselves = 0;
+                    break;
+                  }
+#endif
+
+                /* Decide whether to perform the padding ourselves.  */
+#if !NEED_PRINTF_FLAG_LEFTADJUST && (!DCHAR_IS_TCHAR || ENABLE_UNISTDIO || NEED_PRINTF_FLAG_ZERO || NEED_PRINTF_UNBOUNDED_PRECISION)
+                switch (dp->conversion)
+                  {
+# if !DCHAR_IS_TCHAR || ENABLE_UNISTDIO
+                  /* If we need conversion from TCHAR_T[] to DCHAR_T[], we need
+                     to perform the padding after this conversion.  Functions
+                     with unistdio extensions perform the padding based on
+                     character count rather than element count.  */
+                  case 'c': case 's':
+# endif
+# if NEED_PRINTF_FLAG_ZERO
+                  case 'f': case 'F': case 'e': case 'E': case 'g': case 'G':
+                  case 'a': case 'A':
+# endif
+                    pad_ourselves = 1;
+                    break;
+                  default:
+                    pad_ourselves = prec_ourselves;
+                    break;
+                  }
+#endif
+
                 /* Construct the format string for calling snprintf or
                    sprintf.  */
-                p = buf;
-                *p++ = '%';
-                if (dp->flags & FLAG_GROUP)
-                  *p++ = '\'';
-                if (dp->flags & FLAG_LEFT)
-                  *p++ = '-';
-                if (dp->flags & FLAG_SHOWSIGN)
-                  *p++ = '+';
-                if (dp->flags & FLAG_SPACE)
-                  *p++ = ' ';
-                if (dp->flags & FLAG_ALT)
-                  *p++ = '#';
-                if (dp->flags & FLAG_ZERO)
-                  *p++ = '0';
-                if (dp->width_start != dp->width_end)
+                fbp = buf;
+                *fbp++ = '%';
+#if NEED_PRINTF_FLAG_GROUPING
+                /* The underlying implementation doesn't support the ' flag.
+                   Produce no grouping characters in this case; this is
+                   acceptable because the grouping is locale dependent.  */
+#else
+                if (flags & FLAG_GROUP)
+                  *fbp++ = '\'';
+#endif
+                if (flags & FLAG_LEFT)
+                  *fbp++ = '-';
+                if (flags & FLAG_SHOWSIGN)
+                  *fbp++ = '+';
+                if (flags & FLAG_SPACE)
+                  *fbp++ = ' ';
+                if (flags & FLAG_ALT)
+                  *fbp++ = '#';
+                if (!pad_ourselves)
                   {
-                    size_t n = dp->width_end - dp->width_start;
-                    memcpy (p, dp->width_start, n * sizeof (CHAR_T));
-                    p += n;
+                    if (flags & FLAG_ZERO)
+                      *fbp++ = '0';
+                    if (dp->width_start != dp->width_end)
+                      {
+                        size_t n = dp->width_end - dp->width_start;
+                        /* The width specification is known to consist only
+                           of standard ASCII characters.  */
+                        if (sizeof (FCHAR_T) == sizeof (TCHAR_T))
+                          {
+                            memcpy (fbp, dp->width_start, n * sizeof (TCHAR_T));
+                            fbp += n;
+                          }
+                        else
+                          {
+                            const FCHAR_T *mp = dp->width_start;
+                            do
+                              *fbp++ = (unsigned char) *mp++;
+                            while (--n > 0);
+                          }
+                      }
                   }
-                if (dp->precision_start != dp->precision_end)
+                if (!prec_ourselves)
                   {
-                    size_t n = dp->precision_end - dp->precision_start;
-                    memcpy (p, dp->precision_start, n * sizeof (CHAR_T));
-                    p += n;
+                    if (dp->precision_start != dp->precision_end)
+                      {
+                        size_t n = dp->precision_end - dp->precision_start;
+                        /* The precision specification is known to consist only
+                           of standard ASCII characters.  */
+                        if (sizeof (FCHAR_T) == sizeof (TCHAR_T))
+                          {
+                            memcpy (fbp, dp->precision_start, n * sizeof (TCHAR_T));
+                            fbp += n;
+                          }
+                        else
+                          {
+                            const FCHAR_T *mp = dp->precision_start;
+                            do
+                              *fbp++ = (unsigned char) *mp++;
+                            while (--n > 0);
+                          }
+                      }
                   }
 
                 switch (type)
                   {
-#ifdef HAVE_LONG_LONG_INT
+#if HAVE_LONG_LONG_INT
                   case TYPE_LONGLONGINT:
                   case TYPE_ULONGLONGINT:
-                    *p++ = 'l';
+# if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
+                    *fbp++ = 'I';
+                    *fbp++ = '6';
+                    *fbp++ = '4';
+                    break;
+# else
+                    *fbp++ = 'l';
                     /*FALLTHROUGH*/
+# endif
 #endif
                   case TYPE_LONGINT:
                   case TYPE_ULONGINT:
-#ifdef HAVE_WINT_T
+#if HAVE_WINT_T
                   case TYPE_WIDE_CHAR:
 #endif
-#ifdef HAVE_WCHAR_T
+#if HAVE_WCHAR_T
                   case TYPE_WIDE_STRING:
 #endif
-                    *p++ = 'l';
+                    *fbp++ = 'l';
                     break;
-#ifdef HAVE_LONG_DOUBLE
                   case TYPE_LONGDOUBLE:
-                    *p++ = 'L';
+                    *fbp++ = 'L';
                     break;
-#endif
                   default:
                     break;
                   }
-                *p = dp->conversion;
+#if NEED_PRINTF_DIRECTIVE_F
+                if (dp->conversion == 'F')
+                  *fbp = 'f';
+                else
+#endif
+                  *fbp = dp->conversion;
 #if USE_SNPRINTF
-                p[1] = '%';
-                p[2] = 'n';
-                p[3] = '\0';
+# if !(__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 3) || ((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__))
+                fbp[1] = '%';
+                fbp[2] = 'n';
+                fbp[3] = '\0';
+# else
+                /* On glibc2 systems from glibc >= 2.3 - probably also older
+                   ones - we know that snprintf's returns value conforms to
+                   ISO C 99: the gl_SNPRINTF_DIRECTIVE_N test passes.
+                   Therefore we can avoid using %n in this situation.
+                   On glibc2 systems from 2004-10-18 or newer, the use of %n
+                   in format strings in writable memory may crash the program
+                   (if compiled with _FORTIFY_SOURCE=2), so we should avoid it
+                   in this situation.  */
+                /* On native Win32 systems (such as mingw), we can avoid using
+                   %n because:
+                     - Although the gl_SNPRINTF_TRUNCATION_C99 test fails,
+                       snprintf does not write more than the specified number
+                       of bytes. (snprintf (buf, 3, "%d %d", 4567, 89) writes
+                       '4', '5', '6' into buf, not '4', '5', '\0'.)
+                     - Although the gl_SNPRINTF_RETVAL_C99 test fails, snprintf
+                       allows us to recognize the case of an insufficient
+                       buffer size: it returns -1 in this case.
+                   On native Win32 systems (such as mingw) where the OS is
+                   Windows Vista, the use of %n in format strings by default
+                   crashes the program. See
+                     <http://gcc.gnu.org/ml/gcc/2007-06/msg00122.html> and
+                     <http://msdn2.microsoft.com/en-us/library/ms175782(VS.80).aspx>
+                   So we should avoid %n in this situation.  */
+                fbp[1] = '\0';
+# endif
 #else
-                p[1] = '\0';
+                fbp[1] = '\0';
 #endif
 
                 /* Construct the arguments for calling snprintf or sprintf.  */
                 prefix_count = 0;
-                if (dp->width_arg_index != ARG_NONE)
+                if (!pad_ourselves && dp->width_arg_index != ARG_NONE)
                   {
                     if (!(a.arg[dp->width_arg_index].type == TYPE_INT))
                       abort ();
@@ -576,36 +4060,50 @@ VASNPRINTF (CHAR_T *resultbuf, size_t *lengthp, const CHAR_T *format, va_list ar
                   }
 
 #if USE_SNPRINTF
+                /* The SNPRINTF result is appended after result[0..length].
+                   The latter is an array of DCHAR_T; SNPRINTF appends an
+                   array of TCHAR_T to it.  This is possible because
+                   sizeof (TCHAR_T) divides sizeof (DCHAR_T) and
+                   alignof (TCHAR_T) <= alignof (DCHAR_T).  */
+# define TCHARS_PER_DCHAR (sizeof (DCHAR_T) / sizeof (TCHAR_T))
+                /* Ensure that maxlen below will be >= 2.  Needed on BeOS,
+                   where an snprintf() with maxlen==1 acts like sprintf().  */
+                ENSURE_ALLOCATION (xsum (length,
+                                         (2 + TCHARS_PER_DCHAR - 1)
+                                         / TCHARS_PER_DCHAR));
                 /* Prepare checking whether snprintf returns the count
                    via %n.  */
-                ENSURE_ALLOCATION (xsum (length, 1));
-                result[length] = '\0';
+                *(TCHAR_T *) (result + length) = '\0';
 #endif
 
                 for (;;)
                   {
-                    size_t maxlen;
-                    int count;
-                    int retcount;
-
-                    maxlen = allocated - length;
-                    count = -1;
-                    retcount = 0;
+                    int count = -1;
 
 #if USE_SNPRINTF
+                    int retcount = 0;
+                    size_t maxlen = allocated - length;
+                    /* SNPRINTF can fail if its second argument is
+                       > INT_MAX.  */
+                    if (maxlen > INT_MAX / TCHARS_PER_DCHAR)
+                      maxlen = INT_MAX / TCHARS_PER_DCHAR;
+                    maxlen = maxlen * TCHARS_PER_DCHAR;
 # define SNPRINTF_BUF(arg) \
                     switch (prefix_count)                                   \
                       {                                                     \
                       case 0:                                               \
-                        retcount = SNPRINTF (result + length, maxlen, buf,  \
+                        retcount = SNPRINTF ((TCHAR_T *) (result + length), \
+                                             maxlen, buf,                   \
                                              arg, &count);                  \
                         break;                                              \
                       case 1:                                               \
-                        retcount = SNPRINTF (result + length, maxlen, buf,  \
+                        retcount = SNPRINTF ((TCHAR_T *) (result + length), \
+                                             maxlen, buf,                   \
                                              prefixes[0], arg, &count);     \
                         break;                                              \
                       case 2:                                               \
-                        retcount = SNPRINTF (result + length, maxlen, buf,  \
+                        retcount = SNPRINTF ((TCHAR_T *) (result + length), \
+                                             maxlen, buf,                   \
                                              prefixes[0], prefixes[1], arg, \
                                              &count);                       \
                         break;                                              \
@@ -681,7 +4179,7 @@ VASNPRINTF (CHAR_T *resultbuf, size_t *lengthp, const CHAR_T *format, va_list ar
                           SNPRINTF_BUF (arg);
                         }
                         break;
-#ifdef HAVE_LONG_LONG_INT
+#if HAVE_LONG_LONG_INT
                       case TYPE_LONGLONGINT:
                         {
                           long long int arg = a.arg[dp->arg_index].a.a_longlongint;
@@ -701,21 +4199,19 @@ VASNPRINTF (CHAR_T *resultbuf, size_t *lengthp, const CHAR_T *format, va_list ar
                           SNPRINTF_BUF (arg);
                         }
                         break;
-#ifdef HAVE_LONG_DOUBLE
                       case TYPE_LONGDOUBLE:
                         {
                           long double arg = a.arg[dp->arg_index].a.a_longdouble;
                           SNPRINTF_BUF (arg);
                         }
                         break;
-#endif
                       case TYPE_CHAR:
                         {
                           int arg = a.arg[dp->arg_index].a.a_char;
                           SNPRINTF_BUF (arg);
                         }
                         break;
-#ifdef HAVE_WINT_T
+#if HAVE_WINT_T
                       case TYPE_WIDE_CHAR:
                         {
                           wint_t arg = a.arg[dp->arg_index].a.a_wide_char;
@@ -729,7 +4225,7 @@ VASNPRINTF (CHAR_T *resultbuf, size_t *lengthp, const CHAR_T *format, va_list ar
                           SNPRINTF_BUF (arg);
                         }
                         break;
-#ifdef HAVE_WCHAR_T
+#if HAVE_WCHAR_T
                       case TYPE_WIDE_STRING:
                         {
                           const wchar_t *arg = a.arg[dp->arg_index].a.a_wide_string;
@@ -756,7 +4252,8 @@ VASNPRINTF (CHAR_T *resultbuf, size_t *lengthp, const CHAR_T *format, va_list ar
                       {
                         /* Verify that snprintf() has NUL-terminated its
                            result.  */
-                        if (count < maxlen && result[length + count] != '\0')
+                        if (count < maxlen
+                            && ((TCHAR_T *) (result + length)) [count] != '\0')
                           abort ();
                         /* Portability hack.  */
                         if (retcount > count)
@@ -766,11 +4263,11 @@ VASNPRINTF (CHAR_T *resultbuf, size_t *lengthp, const CHAR_T *format, va_list ar
                       {
                         /* snprintf() doesn't understand the '%n'
                            directive.  */
-                        if (p[1] != '\0')
+                        if (fbp[1] != '\0')
                           {
                             /* Don't use the '%n' directive; instead, look
                                at the snprintf() return value.  */
-                            p[1] = '\0';
+                            fbp[1] = '\0';
                             continue;
                           }
                         else
@@ -806,37 +4303,339 @@ VASNPRINTF (CHAR_T *resultbuf, size_t *lengthp, const CHAR_T *format, va_list ar
                         return NULL;
                       }
 
-#if !USE_SNPRINTF
+#if USE_SNPRINTF
+                    /* Handle overflow of the allocated buffer.
+                       If such an overflow occurs, a C99 compliant snprintf()
+                       returns a count >= maxlen.  However, a non-compliant
+                       snprintf() function returns only count = maxlen - 1.  To
+                       cover both cases, test whether count >= maxlen - 1.  */
+                    if ((unsigned int) count + 1 >= maxlen)
+                      {
+                        /* If maxlen already has attained its allowed maximum,
+                           allocating more memory will not increase maxlen.
+                           Instead of looping, bail out.  */
+                        if (maxlen == INT_MAX / TCHARS_PER_DCHAR)
+                          goto overflow;
+                        else
+                          {
+                            /* Need at least (count + 1) * sizeof (TCHAR_T)
+                               bytes.  (The +1 is for the trailing NUL.)
+                               But ask for (count + 2) * sizeof (TCHAR_T)
+                               bytes, so that in the next round, we likely get
+                                 maxlen > (unsigned int) count + 1
+                               and so we don't get here again.
+                               And allocate proportionally, to avoid looping
+                               eternally if snprintf() reports a too small
+                               count.  */
+                            size_t n =
+                              xmax (xsum (length,
+                                          ((unsigned int) count + 2
+                                           + TCHARS_PER_DCHAR - 1)
+                                          / TCHARS_PER_DCHAR),
+                                    xtimes (allocated, 2));
+
+                            ENSURE_ALLOCATION (n);
+                            continue;
+                          }
+                      }
+#endif
+
+#if NEED_PRINTF_UNBOUNDED_PRECISION
+                    if (prec_ourselves)
+                      {
+                        /* Handle the precision.  */
+                        TCHAR_T *prec_ptr =
+# if USE_SNPRINTF
+                          (TCHAR_T *) (result + length);
+# else
+                          tmp;
+# endif
+                        size_t prefix_count;
+                        size_t move;
+
+                        prefix_count = 0;
+                        /* Put the additional zeroes after the sign.  */
+                        if (count >= 1
+                            && (*prec_ptr == '-' || *prec_ptr == '+'
+                                || *prec_ptr == ' '))
+                          prefix_count = 1;
+                        /* Put the additional zeroes after the 0x prefix if
+                           (flags & FLAG_ALT) || (dp->conversion == 'p').  */
+                        else if (count >= 2
+                                 && prec_ptr[0] == '0'
+                                 && (prec_ptr[1] == 'x' || prec_ptr[1] == 'X'))
+                          prefix_count = 2;
+
+                        move = count - prefix_count;
+                        if (precision > move)
+                          {
+                            /* Insert zeroes.  */
+                            size_t insert = precision - move;
+                            TCHAR_T *prec_end;
+
+# if USE_SNPRINTF
+                            size_t n =
+                              xsum (length,
+                                    (count + insert + TCHARS_PER_DCHAR - 1)
+                                    / TCHARS_PER_DCHAR);
+                            length += (count + TCHARS_PER_DCHAR - 1) / TCHARS_PER_DCHAR;
+                            ENSURE_ALLOCATION (n);
+                            length -= (count + TCHARS_PER_DCHAR - 1) / TCHARS_PER_DCHAR;
+                            prec_ptr = (TCHAR_T *) (result + length);
+# endif
+
+                            prec_end = prec_ptr + count;
+                            prec_ptr += prefix_count;
+
+                            while (prec_end > prec_ptr)
+                              {
+                                prec_end--;
+                                prec_end[insert] = prec_end[0];
+                              }
+
+                            prec_end += insert;
+                            do
+                              *--prec_end = '0';
+                            while (prec_end > prec_ptr);
+
+                            count += insert;
+                          }
+                      }
+#endif
+
+#if !DCHAR_IS_TCHAR
+# if !USE_SNPRINTF
                     if (count >= tmp_length)
                       /* tmp_length was incorrectly calculated - fix the
                          code above!  */
                       abort ();
+# endif
+
+                    /* Convert from TCHAR_T[] to DCHAR_T[].  */
+                    if (dp->conversion == 'c' || dp->conversion == 's')
+                      {
+                        /* type = TYPE_CHAR or TYPE_WIDE_CHAR or TYPE_STRING
+                           TYPE_WIDE_STRING.
+                           The result string is not certainly ASCII.  */
+                        const TCHAR_T *tmpsrc;
+                        DCHAR_T *tmpdst;
+                        size_t tmpdst_len;
+                        /* This code assumes that TCHAR_T is 'char'.  */
+                        typedef int TCHAR_T_verify
+                                    [2 * (sizeof (TCHAR_T) == 1) - 1];
+# if USE_SNPRINTF
+                        tmpsrc = (TCHAR_T *) (result + length);
+# else
+                        tmpsrc = tmp;
+# endif
+                        tmpdst = NULL;
+                        tmpdst_len = 0;
+                        if (DCHAR_CONV_FROM_ENCODING (locale_charset (),
+                                                      iconveh_question_mark,
+                                                      tmpsrc, count,
+                                                      NULL,
+                                                      &tmpdst, &tmpdst_len)
+                            < 0)
+                          {
+                            int saved_errno = errno;
+                            if (!(result == resultbuf || result == NULL))
+                              free (result);
+                            if (buf_malloced != NULL)
+                              free (buf_malloced);
+                            CLEANUP ();
+                            errno = saved_errno;
+                            return NULL;
+                          }
+                        ENSURE_ALLOCATION (xsum (length, tmpdst_len));
+                        DCHAR_CPY (result + length, tmpdst, tmpdst_len);
+                        free (tmpdst);
+                        count = tmpdst_len;
+                      }
+                    else
+                      {
+                        /* The result string is ASCII.
+                           Simple 1:1 conversion.  */
+# if USE_SNPRINTF
+                        /* If sizeof (DCHAR_T) == sizeof (TCHAR_T), it's a
+                           no-op conversion, in-place on the array starting
+                           at (result + length).  */
+                        if (sizeof (DCHAR_T) != sizeof (TCHAR_T))
+# endif
+                          {
+                            const TCHAR_T *tmpsrc;
+                            DCHAR_T *tmpdst;
+                            size_t n;
+
+# if USE_SNPRINTF
+                            if (result == resultbuf)
+                              {
+                                tmpsrc = (TCHAR_T *) (result + length);
+                                /* ENSURE_ALLOCATION will not move tmpsrc
+                                   (because it's part of resultbuf).  */
+                                ENSURE_ALLOCATION (xsum (length, count));
+                              }
+                            else
+                              {
+                                /* ENSURE_ALLOCATION will move the array
+                                   (because it uses realloc().  */
+                                ENSURE_ALLOCATION (xsum (length, count));
+                                tmpsrc = (TCHAR_T *) (result + length);
+                              }
+# else
+                            tmpsrc = tmp;
+                            ENSURE_ALLOCATION (xsum (length, count));
+# endif
+                            tmpdst = result + length;
+                            /* Copy backwards, because of overlapping.  */
+                            tmpsrc += count;
+                            tmpdst += count;
+                            for (n = count; n > 0; n--)
+                              *--tmpdst = (unsigned char) *--tmpsrc;
+                          }
+                      }
 #endif
 
+#if DCHAR_IS_TCHAR && !USE_SNPRINTF
                     /* Make room for the result.  */
-                    if (count >= maxlen)
+                    if (count > allocated - length)
                       {
-                        /* Need at least count bytes.  But allocate
-                           proportionally, to avoid looping eternally if
-                           snprintf() reports a too small count.  */
+                        /* Need at least count elements.  But allocate
+                           proportionally.  */
                         size_t n =
                           xmax (xsum (length, count), xtimes (allocated, 2));
 
                         ENSURE_ALLOCATION (n);
-#if USE_SNPRINTF
-                        continue;
+                      }
 #endif
+
+                    /* Here count <= allocated - length.  */
+
+                    /* Perform padding.  */
+#if !DCHAR_IS_TCHAR || ENABLE_UNISTDIO || NEED_PRINTF_FLAG_LEFTADJUST || NEED_PRINTF_FLAG_ZERO || NEED_PRINTF_UNBOUNDED_PRECISION
+                    if (pad_ourselves && has_width)
+                      {
+                        size_t w;
+# if ENABLE_UNISTDIO
+                        /* Outside POSIX, it's preferrable to compare the width
+                           against the number of _characters_ of the converted
+                           value.  */
+                        w = DCHAR_MBSNLEN (result + length, count);
+# else
+                        /* The width is compared against the number of _bytes_
+                           of the converted value, says POSIX.  */
+                        w = count;
+# endif
+                        if (w < width)
+                          {
+                            size_t pad = width - w;
+# if USE_SNPRINTF
+                            /* Make room for the result.  */
+                            if (xsum (count, pad) > allocated - length)
+                              {
+                                /* Need at least count + pad elements.  But
+                                   allocate proportionally.  */
+                                size_t n =
+                                  xmax (xsum3 (length, count, pad),
+                                        xtimes (allocated, 2));
+
+                                length += count;
+                                ENSURE_ALLOCATION (n);
+                                length -= count;
+                              }
+                            /* Here count + pad <= allocated - length.  */
+# endif
+                            {
+# if !DCHAR_IS_TCHAR || USE_SNPRINTF
+                              DCHAR_T * const rp = result + length;
+# else
+                              DCHAR_T * const rp = tmp;
+# endif
+                              DCHAR_T *p = rp + count;
+                              DCHAR_T *end = p + pad;
+                              DCHAR_T *pad_ptr;
+# if !DCHAR_IS_TCHAR
+                              if (dp->conversion == 'c'
+                                  || dp->conversion == 's')
+                                /* No zero-padding for string directives.  */
+                                pad_ptr = NULL;
+                              else
+# endif
+                                {
+                                  pad_ptr = (*rp == '-' ? rp + 1 : rp);
+                                  /* No zero-padding of "inf" and "nan".  */
+                                  if ((*pad_ptr >= 'A' && *pad_ptr <= 'Z')
+                                      || (*pad_ptr >= 'a' && *pad_ptr <= 'z'))
+                                    pad_ptr = NULL;
+                                }
+                              /* The generated string now extends from rp to p,
+                                 with the zero padding insertion point being at
+                                 pad_ptr.  */
+
+                              count = count + pad; /* = end - rp */
+
+                              if (flags & FLAG_LEFT)
+                                {
+                                  /* Pad with spaces on the right.  */
+                                  for (; pad > 0; pad--)
+                                    *p++ = ' ';
+                                }
+                              else if ((flags & FLAG_ZERO) && pad_ptr != NULL)
+                                {
+                                  /* Pad with zeroes.  */
+                                  DCHAR_T *q = end;
+
+                                  while (p > pad_ptr)
+                                    *--q = *--p;
+                                  for (; pad > 0; pad--)
+                                    *p++ = '0';
+                                }
+                              else
+                                {
+                                  /* Pad with spaces on the left.  */
+                                  DCHAR_T *q = end;
+
+                                  while (p > rp)
+                                    *--q = *--p;
+                                  for (; pad > 0; pad--)
+                                    *p++ = ' ';
+                                }
+                            }
+                          }
                       }
+#endif
 
-#if USE_SNPRINTF
+#if DCHAR_IS_TCHAR && !USE_SNPRINTF
+                    if (count >= tmp_length)
+                      /* tmp_length was incorrectly calculated - fix the
+                         code above!  */
+                      abort ();
+#endif
+
+                    /* Here still count <= allocated - length.  */
+
+#if !DCHAR_IS_TCHAR || USE_SNPRINTF
                     /* The snprintf() result did fit.  */
 #else
                     /* Append the sprintf() result.  */
-                    memcpy (result + length, tmp, count * sizeof (CHAR_T));
+                    memcpy (result + length, tmp, count * sizeof (DCHAR_T));
+#endif
+#if !USE_SNPRINTF
                     if (tmp != tmpbuf)
                       free (tmp);
 #endif
 
+#if NEED_PRINTF_DIRECTIVE_F
+                    if (dp->conversion == 'F')
+                      {
+                        /* Convert the %f result to upper case for %F.  */
+                        DCHAR_T *rp = result + length;
+                        size_t rc;
+                        for (rc = count; rc > 0; rc--, rp++)
+                          if (*rp >= 'a' && *rp <= 'z')
+                            *rp = *rp - 'a' + 'A';
+                      }
+#endif
+
                     length += count;
                     break;
                   }
@@ -851,9 +4650,9 @@ VASNPRINTF (CHAR_T *resultbuf, size_t *lengthp, const CHAR_T *format, va_list ar
     if (result != resultbuf && length + 1 < allocated)
       {
         /* Shrink the allocated memory if possible.  */
-        CHAR_T *memory;
+        DCHAR_T *memory;
 
-        memory = (CHAR_T *) realloc (result, (length + 1) * sizeof (CHAR_T));
+        memory = (DCHAR_T *) realloc (result, (length + 1) * sizeof (DCHAR_T));
         if (memory != NULL)
           result = memory;
       }
@@ -868,6 +4667,17 @@ VASNPRINTF (CHAR_T *resultbuf, size_t *lengthp, const CHAR_T *format, va_list ar
        not have this limitation.  */
     return result;
 
+#if USE_SNPRINTF
+  overflow:
+    if (!(result == resultbuf || result == NULL))
+      free (result);
+    if (buf_malloced != NULL)
+      free (buf_malloced);
+    CLEANUP ();
+    errno = EOVERFLOW;
+    return NULL;
+#endif
+
   out_of_memory:
     if (!(result == resultbuf || result == NULL))
       free (result);
@@ -880,10 +4690,15 @@ VASNPRINTF (CHAR_T *resultbuf, size_t *lengthp, const CHAR_T *format, va_list ar
   }
 }
 
+#undef TCHARS_PER_DCHAR
 #undef SNPRINTF
 #undef USE_SNPRINTF
+#undef DCHAR_CPY
 #undef PRINTF_PARSE
 #undef DIRECTIVES
 #undef DIRECTIVE
-#undef CHAR_T
+#undef DCHAR_IS_TCHAR
+#undef TCHAR_T
+#undef DCHAR_T
+#undef FCHAR_T
 #undef VASNPRINTF
diff --git a/gl/vasnprintf.h b/gl/vasnprintf.h
index 894008ca..b9a3d6ed 100644
--- a/gl/vasnprintf.h
+++ b/gl/vasnprintf.h
@@ -1,9 +1,9 @@
 /* vsprintf with automatic memory allocation.
-   Copyright (C) 2002-2004 Free Software Foundation, Inc.
+   Copyright (C) 2002-2004, 2007-2008 Free Software Foundation, Inc.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
+   the Free Software Foundation; either version 3, or (at your option)
    any later version.
 
    This program is distributed in the hope that it will be useful,
@@ -26,7 +26,7 @@
 
 #ifndef __attribute__
 /* This feature is available in gcc versions 2.5 and later.  */
-# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 5) || __STRICT_ANSI__
+# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 5)
 #  define __attribute__(Spec) /* empty */
 # endif
 /* The __-protected variants of `format' and `printf' attributes
@@ -37,7 +37,7 @@
 # endif
 #endif
 
-#ifdef  __cplusplus
+#ifdef __cplusplus
 extern "C" {
 #endif
 
@@ -65,12 +65,16 @@ extern "C" {
                 free (output);
             }
   */
+#if REPLACE_VASNPRINTF
+# define asnprintf rpl_asnprintf
+# define vasnprintf rpl_vasnprintf
+#endif
 extern char * asnprintf (char *resultbuf, size_t *lengthp, const char *format, ...)
        __attribute__ ((__format__ (__printf__, 3, 4)));
 extern char * vasnprintf (char *resultbuf, size_t *lengthp, const char *format, va_list args)
        __attribute__ ((__format__ (__printf__, 3, 0)));
 
-#ifdef  __cplusplus
+#ifdef __cplusplus
 }
 #endif
 
diff --git a/gl/vasprintf.c b/gl/vasprintf.c
index 82470734..90f64e91 100644
--- a/gl/vasprintf.c
+++ b/gl/vasprintf.c
@@ -1,9 +1,9 @@
 /* Formatted output to strings.
-   Copyright (C) 1999, 2002, 2006 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002, 2006-2007 Free Software Foundation, Inc.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
+   the Free Software Foundation; either version 3, or (at your option)
    any later version.
 
    This program is distributed in the hope that it will be useful,
@@ -18,7 +18,11 @@
 #include <config.h>
 
 /* Specification.  */
-#include "vasprintf.h"
+#ifdef IN_LIBASPRINTF
+# include "vasprintf.h"
+#else
+# include <stdio.h>
+#endif
 
 #include <errno.h>
 #include <limits.h>
diff --git a/gl/vasprintf.h b/gl/vasprintf.h
deleted file mode 100644
index ab5515ce..00000000
--- a/gl/vasprintf.h
+++ /dev/null
@@ -1,63 +0,0 @@
-/* vsprintf with automatic memory allocation.
-   Copyright (C) 2002-2003 Free Software Foundation, Inc.
-
-   This program is free software; you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software Foundation,
-   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
-
-#ifndef _VASPRINTF_H
-#define _VASPRINTF_H
-
-#if HAVE_VASPRINTF
-
-/* Get asprintf(), vasprintf() declarations.  */
-#include <stdio.h>
-
-#else
-
-/* Get va_list.  */
-#include <stdarg.h>
-
-#ifndef __attribute__
-/* This feature is available in gcc versions 2.5 and later.  */
-# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 5) || __STRICT_ANSI__
-#  define __attribute__(Spec) /* empty */
-# endif
-/* The __-protected variants of `format' and `printf' attributes
-   are accepted by gcc versions 2.6.4 (effectively 2.7) and later.  */
-# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7)
-#  define __format__ format
-#  define __printf__ printf
-# endif
-#endif
-
-#ifdef  __cplusplus
-extern "C" {
-#endif
-
-/* Write formatted output to a string dynamically allocated with malloc().
-   If the memory allocation succeeds, store the address of the string in
-   *RESULT and return the number of resulting bytes, excluding the trailing
-   NUL.  Upon memory allocation error, or some other error, return -1.  */
-extern int asprintf (char **result, const char *format, ...)
-       __attribute__ ((__format__ (__printf__, 2, 3)));
-extern int vasprintf (char **result, const char *format, va_list args)
-       __attribute__ ((__format__ (__printf__, 2, 0)));
-
-#ifdef  __cplusplus
-}
-#endif
-
-#endif
-
-#endif /* _VASPRINTF_H */
diff --git a/gl/vsnprintf.c b/gl/vsnprintf.c
index af567d2c..cc8f61f1 100644
--- a/gl/vsnprintf.c
+++ b/gl/vsnprintf.c
@@ -1,10 +1,10 @@
 /* Formatted output to strings.
-   Copyright (C) 2004, 2006 Free Software Foundation, Inc.
+   Copyright (C) 2004, 2006-2007 Free Software Foundation, Inc.
    Written by Simon Josefsson and Yoann Vandoorselaere <yoann@prelude-ids.org>.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
+   the Free Software Foundation; either version 3, or (at your option)
    any later version.
 
    This program is distributed in the hope that it will be useful,
@@ -21,12 +21,11 @@
 #endif
 
 /* Specification.  */
-#include "vsnprintf.h"
+#include <stdio.h>
 
 #include <errno.h>
 #include <limits.h>
 #include <stdarg.h>
-#include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 
@@ -41,7 +40,7 @@
    additional length SIZE limit how much is written into STR.  Returns
    string length of formatted string (which may be larger than SIZE).
    STR may be NULL, in which case nothing will be written.  On error,
-   return a negative value. */
+   return a negative value.  */
 int
 vsnprintf (char *str, size_t size, const char *format, va_list args)
 {
diff --git a/gl/vsnprintf.h b/gl/vsnprintf.h
deleted file mode 100644
index f80c77a9..00000000
--- a/gl/vsnprintf.h
+++ /dev/null
@@ -1,31 +0,0 @@
-/* Formatted output to strings.
-   Copyright (C) 2004 Free Software Foundation, Inc.
-   Written by Simon Josefsson and Yoann Vandoorselaere <yoann@prelude-ids.org>.
-
-   This program is free software; you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License along
-   with this program; if not, write to the Free Software Foundation,
-   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
-
-#ifndef VSNPRINTF_H
-#define VSNPRINTF_H
-
-#include <stdarg.h>
-
-/* Get vsnprintf declaration, if available.  */
-#include <stdio.h>
-
-#if defined HAVE_DECL_VSNPRINTF && !HAVE_DECL_VSNPRINTF
-int vsnprintf (char *str, size_t size, const char *format, va_list args);
-#endif
-
-#endif /* VSNPRINTF_H */
diff --git a/gl/wchar_.h b/gl/wchar.in.h
index 6813a211..b721572e 100644
--- a/gl/wchar_.h
+++ b/gl/wchar.in.h
@@ -4,7 +4,7 @@
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
+   the Free Software Foundation; either version 3, or (at your option)
    any later version.
 
    This program is distributed in the hope that it will be useful,
@@ -22,11 +22,11 @@
  * ISO C 99 <wchar.h> for platforms that have issues.
  * <http://www.opengroup.org/susv3xbd/wchar.h.html>
  *
- * For now, this just ensures proper prerequisite inclusion order.
+ * For now, this just ensures proper prerequisite inclusion order and
+ * the declaration of wcwidth().
  */
 
 #ifndef _GL_WCHAR_H
-#define _GL_WCHAR_H
 
 /* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before
    <wchar.h>.
@@ -36,7 +36,47 @@
 #include <stdio.h>
 #include <time.h>
 
-/* Include the original <wchar.h>.  */
-#include @ABSOLUTE_WCHAR_H@
+/* Include the original <wchar.h> if it exists.
+   Some builds of uClibc lack it.  */
+/* The include_next requires a split double-inclusion guard.  */
+#if @HAVE_WCHAR_H@
+# @INCLUDE_NEXT@ @NEXT_WCHAR_H@
+#endif
+
+#ifndef _GL_WCHAR_H
+#define _GL_WCHAR_H
+
+/* The definition of GL_LINK_WARNING is copied here.  */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
 
+
+/* Return the number of screen columns needed for WC.  */
+#if @GNULIB_WCWIDTH@
+# if @REPLACE_WCWIDTH@
+#  undef wcwidth
+#  define wcwidth rpl_wcwidth
+extern int wcwidth (wchar_t);
+# else
+#  if !defined wcwidth && !@HAVE_DECL_WCWIDTH@
+/* wcwidth exists but is not declared.  */
+extern int wcwidth (int /* actually wchar_t */);
+#  endif
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef wcwidth
+# define wcwidth(w) \
+    (GL_LINK_WARNING ("wcwidth is unportable - " \
+                      "use gnulib module wcwidth for portability"), \
+     wcwidth (w))
+#endif
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _GL_WCHAR_H */
 #endif /* _GL_WCHAR_H */
diff --git a/gl/wctype_.h b/gl/wctype.in.h
index 1297c61e..a86b5ad4 100644
--- a/gl/wctype_.h
+++ b/gl/wctype.in.h
@@ -4,7 +4,7 @@
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
+   the Free Software Foundation; either version 3, or (at your option)
    any later version.
 
    This program is distributed in the hope that it will be useful,
@@ -27,7 +27,6 @@
  */
 
 #ifndef _GL_WCTYPE_H
-#define _GL_WCTYPE_H
 
 #if @HAVE_WINT_T@
 /* Solaris 2.5 has a bug: <wchar.h> must be included before <wctype.h>.
@@ -39,20 +38,27 @@
 # include <stdio.h>
 # include <time.h>
 # include <wchar.h>
-typedef wint_t __wctype_wint_t;
-#else
-typedef int __wctype_wint_t;
 #endif
 
 /* Include the original <wctype.h> if it exists.
    BeOS 5 has the functions but no <wctype.h>.  */
+/* The include_next requires a split double-inclusion guard.  */
 #if @HAVE_WCTYPE_H@
-# include @ABSOLUTE_WCTYPE_H@
+# @INCLUDE_NEXT@ @NEXT_WCTYPE_H@
+#endif
+
+#ifndef _GL_WCTYPE_H
+#define _GL_WCTYPE_H
+
+#if @HAVE_WINT_T@
+typedef wint_t __wctype_wint_t;
+#else
+typedef int __wctype_wint_t;
 #endif
 
 /* FreeBSD 4.4 to 4.11 has <wctype.h> but lacks the functions.
    Assume all 12 functions are implemented the same way, or not at all.  */
-#if ! HAVE_ISWCNTRL
+#if ! @HAVE_ISWCNTRL@
 
 /* IRIX 5.3 has macros but no functions, its isw* macros refer to an
    undefined variable _ctmp_ and to <ctype.h> macros like _P, and they
@@ -152,3 +158,4 @@ iswxdigit (__wctype_wint_t wc)
 # endif /* ! HAVE_ISWCNTRL */
 
 #endif /* _GL_WCTYPE_H */
+#endif /* _GL_WCTYPE_H */
diff --git a/gl/wcwidth.h b/gl/wcwidth.h
deleted file mode 100644
index 8ed5ff8c..00000000
--- a/gl/wcwidth.h
+++ /dev/null
@@ -1,57 +0,0 @@
-/* Determine the number of screen columns needed for a character.
-   Copyright (C) 2006, 2007 Free Software Foundation, Inc.
-
-   This program is free software; you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software Foundation,
-   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
-
-#ifndef _gl_WCWIDTH_H
-#define _gl_WCWIDTH_H
-
-#if HAVE_WCHAR_T
-
-/* Get wcwidth if available, along with wchar_t.  */
-# include <wchar.h>
-
-/* Get iswprint.  */
-# include <wctype.h>
-
-# ifndef HAVE_DECL_WCWIDTH
-"this configure-time declaration test was not run"
-# endif
-# ifndef wcwidth
-#  if !HAVE_WCWIDTH
-
-/* wcwidth doesn't exist, so assume all printable characters have
-   width 1.  */
-static inline int
-wcwidth (wchar_t wc)
-{
-  return wc == 0 ? 0 : iswprint (wc) ? 1 : -1;
-}
-
-#  elif !HAVE_DECL_WCWIDTH
-
-/* wcwidth exists but is not declared.  */
-extern
-#   ifdef __cplusplus
-"C"
-#   endif
-int wcwidth (int /* actually wchar_t */);
-
-#  endif
-# endif
-
-#endif /* HAVE_WCHAR_T */
-
-#endif /* _gl_WCWIDTH_H */
diff --git a/gl/xalloc-die.c b/gl/xalloc-die.c
index 090f060d..0a0694fc 100644
--- a/gl/xalloc-die.c
+++ b/gl/xalloc-die.c
@@ -3,10 +3,10 @@
    Copyright (C) 1997, 1998, 1999, 2000, 2002, 2003, 2004, 2006 Free
    Software Foundation, Inc.
 
-   This program is free software; you can redistribute it and/or modify
+   This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -14,8 +14,7 @@
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software Foundation,
-   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/gl/xalloc.h b/gl/xalloc.h
index 17ab5142..40dcf4bd 100644
--- a/gl/xalloc.h
+++ b/gl/xalloc.h
@@ -1,12 +1,12 @@
 /* xalloc.h -- malloc with out-of-memory checking
 
    Copyright (C) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
-   1999, 2000, 2003, 2004, 2006 Free Software Foundation, Inc.
+   1999, 2000, 2003, 2004, 2006, 2007, 2008 Free Software Foundation, Inc.
 
-   This program is free software; you can redistribute it and/or modify
+   This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -14,8 +14,7 @@
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software Foundation,
-   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #ifndef XALLOC_H_
 # define XALLOC_H_
@@ -29,7 +28,7 @@ extern "C" {
 
 
 # ifndef __attribute__
-#  if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 8) || __STRICT_ANSI__
+#  if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 8)
 #   define __attribute__(x)
 #  endif
 # endif
@@ -139,10 +138,10 @@ xnrealloc (void *p, size_t n, size_t s)
    allocating an initial block with a nonzero size, or by allocating a
    larger block.
 
-   In the following implementation, nonzero sizes are doubled so that
-   repeated reallocations have O(N log N) overall cost rather than
-   O(N**2) cost, but the specification for this function does not
-   guarantee that sizes are doubled.
+   In the following implementation, nonzero sizes are increased by a
+   factor of approximately 1.5 so that repeated reallocations have
+   O(N) overall cost rather than O(N**2) cost, but the
+   specification for this function does not guarantee that rate.
 
    Here is an example of use:
 
@@ -204,9 +203,13 @@ x2nrealloc (void *p, size_t *pn, size_t s)
     }
   else
     {
-      if (((size_t) -1) / 2 / s < n)
+      /* Set N = ceil (1.5 * N) so that progress is made if N == 1.
+         Check for overflow, so that N * S stays in size_t range.
+         The check is slightly conservative, but an exact check isn't
+         worth the trouble.  */
+      if ((size_t) -1 / 3 * 2 / s <= n)
         xalloc_die ();
-      n *= 2;
+      n += (n + 1) / 2;
     }
 
   *pn = n;
diff --git a/gl/xmalloc.c b/gl/xmalloc.c
index 318e0ddb..3a123457 100644
--- a/gl/xmalloc.c
+++ b/gl/xmalloc.c
@@ -4,10 +4,10 @@
    1999, 2000, 2002, 2003, 2004, 2005, 2006 Free Software Foundation,
    Inc.
 
-   This program is free software; you can redistribute it and/or modify
+   This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -15,8 +15,7 @@
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software Foundation,
-   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
diff --git a/gl/xsize.h b/gl/xsize.h
index 341fb16c..b294d66a 100644
--- a/gl/xsize.h
+++ b/gl/xsize.h
@@ -4,7 +4,7 @@
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
+   the Free Software Foundation; either version 3, or (at your option)
    any later version.
 
    This program is distributed in the hope that it will be useful,
diff --git a/gl/xstrndup.c b/gl/xstrndup.c
index afcbc1ab..37488cd9 100644
--- a/gl/xstrndup.c
+++ b/gl/xstrndup.c
@@ -1,11 +1,11 @@
 /* Duplicate a bounded initial segment of a string, with out-of-memory
    checking.
-   Copyright (C) 2003, 2006 Free Software Foundation, Inc.
+   Copyright (C) 2003, 2006, 2007 Free Software Foundation, Inc.
 
-   This program is free software; you can redistribute it and/or modify
+   This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -13,15 +13,14 @@
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software Foundation,
-   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
 /* Specification.  */
 #include "xstrndup.h"
 
-#include "strndup.h"
+#include <string.h>
 #include "xalloc.h"
 
 /* Return a newly allocated copy of at most N bytes of STRING.
diff --git a/gl/xstrndup.h b/gl/xstrndup.h
index 88354cfd..4882e394 100644
--- a/gl/xstrndup.h
+++ b/gl/xstrndup.h
@@ -2,10 +2,10 @@
    checking.
    Copyright (C) 2003 Free Software Foundation, Inc.
 
-   This program is free software; you can redistribute it and/or modify
+   This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -13,8 +13,7 @@
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software Foundation,
-   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #include <stddef.h>