6 files changed, 62 insertions, 23 deletions

diff --git a/gl/m4/fcntl-o.m4 b/gl/m4/fcntl-o.m4
index d416a61c..1adacc8a 100644
--- a/gl/m4/fcntl-o.m4
+++ b/gl/m4/fcntl-o.m4
@@ -1,4 +1,4 @@
-# fcntl-o.m4 serial 1
+# fcntl-o.m4 serial 2
 dnl Copyright (C) 2006, 2009-2010 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -12,7 +12,11 @@ dnl Written by Paul Eggert.
 AC_DEFUN([gl_FCNTL_O_FLAGS],
 [
   dnl Persuade glibc <fcntl.h> to define O_NOATIME and O_NOFOLLOW.
-  AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
+  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])])
   AC_CACHE_CHECK([for working fcntl.h], [gl_cv_header_working_fcntl_h],
     [AC_RUN_IFELSE(
        [AC_LANG_PROGRAM(
diff --git a/gl/m4/fsusage.m4 b/gl/m4/fsusage.m4
index 216b9dd8..68684c27 100644
--- a/gl/m4/fsusage.m4
+++ b/gl/m4/fsusage.m4
@@ -1,4 +1,4 @@
-# serial 25
+# serial 26
 # Obtaining file system usage information.
 
 # Copyright (C) 1997-1998, 2000-2001, 2003-2010 Free Software Foundation, Inc.
@@ -44,7 +44,8 @@ ac_fsusage_space=no
 # systems.  That system is reported to work fine with STAT_STATFS4 which
 # is what it gets when this test fails.
 if test $ac_fsusage_space = no; then
-  # SVR4
+  # glibc/{Hurd,kFreeBSD}, MacOS X >= 10.4, FreeBSD >= 5.0, NetBSD >= 3.0,
+  # OpenBSD >= 4.4, AIX, HP-UX, IRIX, Solaris, Cygwin, Interix, BeOS.
   AC_CACHE_CHECK([for statvfs function (SVR4)], [fu_cv_sys_stat_statvfs],
                  [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
 #if defined __GLIBC__ && defined __linux__
@@ -97,8 +98,13 @@ if test $ac_fsusage_space = no; then
 fi
 
 if test $ac_fsusage_space = no; then
-# AIX
-  AC_MSG_CHECKING([for two-argument statfs with statfs.bsize dnl
+  # glibc/Linux, MacOS X < 10.4, FreeBSD < 5.0, NetBSD < 3.0, OpenBSD < 4.4.
+  # (glibc/{Hurd,kFreeBSD}, MacOS X >= 10.4, FreeBSD >= 5.0, NetBSD >= 3.0,
+  # OpenBSD >= 4.4, AIX, HP-UX, OSF/1, Cygwin already handled above.)
+  # (On IRIX you need to include <sys/statfs.h>, not only <sys/mount.h> and
+  # <sys/vfs.h>.)
+  # (On Solaris, statfs has 4 arguments.)
+  AC_MSG_CHECKING([for two-argument statfs with statfs.f_bsize dnl
 member (AIX, 4.3BSD)])
   AC_CACHE_VAL([fu_cv_sys_stat_statfs2_bsize],
   [AC_RUN_IFELSE([AC_LANG_SOURCE([[
@@ -131,7 +137,8 @@ member (AIX, 4.3BSD)])
 fi
 
 if test $ac_fsusage_space = no; then
-# SVR3
+  # SVR3
+  # (Solaris already handled above.)
   AC_MSG_CHECKING([for four-argument statfs (AIX-3.2.5, SVR3)])
   AC_CACHE_VAL([fu_cv_sys_stat_statfs4],
   [AC_RUN_IFELSE([AC_LANG_SOURCE([[
@@ -150,13 +157,17 @@ if test $ac_fsusage_space = no; then
   if test $fu_cv_sys_stat_statfs4 = yes; then
     ac_fsusage_space=yes
     AC_DEFINE([STAT_STATFS4], [1],
-              [  Define if statfs takes 4 args.  (SVR3, Dynix, Irix, Dolphin)])
+      [  Define if statfs takes 4 args.  (SVR3, Dynix, old Irix, old AIX, Dolphin)])
   fi
 fi
 
 if test $ac_fsusage_space = no; then
-# 4.4BSD and NetBSD
-  AC_MSG_CHECKING([for two-argument statfs with statfs.fsize dnl
+  # 4.4BSD and older NetBSD
+  # (OSF/1 already handled above.)
+  # (On AIX, you need to include <sys/statfs.h>, not only <sys/mount.h>.)
+  # (On Solaris, statfs has 4 arguments and 'struct statfs' is not declared in
+  # <sys/mount.h>.)
+  AC_MSG_CHECKING([for two-argument statfs with statfs.f_fsize dnl
 member (4.4BSD and NetBSD)])
   AC_CACHE_VAL([fu_cv_sys_stat_statfs2_fsize],
   [AC_RUN_IFELSE([AC_LANG_SOURCE([[
@@ -223,6 +234,7 @@ fi
 
 if test $ac_fsusage_space = no; then
   # SVR2
+  # (AIX, HP-UX, OSF/1 already handled above.)
   AC_PREPROC_IFELSE([AC_LANG_SOURCE([[#include <sys/filsys.h>
         ]])],
     [AC_DEFINE([STAT_READ_FILSYS], [1],
diff --git a/gl/m4/gnulib-comp.m4 b/gl/m4/gnulib-comp.m4
index fc3f3538..b5e6b438 100644
--- a/gl/m4/gnulib-comp.m4
+++ b/gl/m4/gnulib-comp.m4
@@ -254,7 +254,7 @@ AC_DEFUN([gl_INIT],
   # Code from module locale:
   gl_LOCALE_H
   # Code from module malloc:
-  AC_FUNC_MALLOC
+  gl_FUNC_MALLOC_GNU
   AC_DEFINE([GNULIB_MALLOC_GNU], 1, [Define to indicate the 'malloc' module.])
   # Code from module malloc-posix:
   gl_FUNC_MALLOC_POSIX
diff --git a/gl/m4/lib-link.m4 b/gl/m4/lib-link.m4
index 59b367df..9f3be3a2 100644
--- a/gl/m4/lib-link.m4
+++ b/gl/m4/lib-link.m4
@@ -1,4 +1,4 @@
-# lib-link.m4 serial 23 (gettext-0.18.2)
+# lib-link.m4 serial 24 (gettext-0.18.2)
 dnl Copyright (C) 2001-2010 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -165,7 +165,7 @@ AC_DEFUN([AC_LIB_FROMPACKAGE],
   pushdef([PACKUP],[m4_translit(PACK,[abcdefghijklmnopqrstuvwxyz./+-],
                                      [ABCDEFGHIJKLMNOPQRSTUVWXYZ____])])
   define([acl_libsinpackage_]PACKUP,
-    m4_ifdef([acl_libsinpackage_]PACKUP, [acl_libsinpackage_]PACKUP[[, ]],)[lib$1])
+    m4_ifdef([acl_libsinpackage_]PACKUP, [m4_defn([acl_libsinpackage_]PACKUP)[, ]],)[lib$1])
   popdef([PACKUP])
   popdef([PACK])
 ])
diff --git a/gl/m4/malloc.m4 b/gl/m4/malloc.m4
index 910ac922..fe5befc2 100644
--- a/gl/m4/malloc.m4
+++ b/gl/m4/malloc.m4
@@ -1,25 +1,40 @@
-# malloc.m4 serial 9
+# malloc.m4 serial 10
 dnl Copyright (C) 2007, 2009, 2010 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_GNU
+# ------------------
+# Test whether 'malloc (0)' is handled like in GNU libc, and replace malloc if
+# it is not.
+AC_DEFUN([gl_FUNC_MALLOC_GNU],
+[
+  AC_REQUIRE([gl_STDLIB_H_DEFAULTS])
+  dnl _AC_FUNC_MALLOC_IF is defined in Autoconf.
+  _AC_FUNC_MALLOC_IF(
+    [AC_DEFINE([HAVE_MALLOC], [1],
+               [Define to 1 if your system has a GNU libc compatible 'malloc'
+                function, and to 0 otherwise.])],
+    [AC_DEFINE([HAVE_MALLOC], [0])
+     gl_REPLACE_MALLOC
+    ])
+])
+
 # 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_STDLIB_H_DEFAULTS])
   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
+    gl_REPLACE_MALLOC
   fi
-  AC_SUBST([HAVE_MALLOC_POSIX])
 ])
 
 # Test whether malloc, realloc, calloc are POSIX compliant,
@@ -39,3 +54,9 @@ AC_DEFUN([gl_CHECK_MALLOC_POSIX],
         ], [gl_cv_func_malloc_posix=yes], [gl_cv_func_malloc_posix=no])
     ])
 ])
+
+AC_DEFUN([gl_REPLACE_MALLOC],
+[
+  AC_LIBOBJ([malloc])
+  REPLACE_MALLOC=1
+])
diff --git a/gl/m4/stdlib_h.m4 b/gl/m4/stdlib_h.m4
index dd84796d..fc150197 100644
--- a/gl/m4/stdlib_h.m4
+++ b/gl/m4/stdlib_h.m4
@@ -1,4 +1,4 @@
-# stdlib_h.m4 serial 28
+# stdlib_h.m4 serial 30
 dnl Copyright (C) 2007-2010 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -33,7 +33,7 @@ AC_DEFUN([gl_STDLIB_H],
 #if HAVE_RANDOM_H
 # include <random.h>
 #endif
-    ]], [atoll canonicalize_file_name getloadavg getsubopt grantpt mkdtemp
+    ]], [_Exit atoll canonicalize_file_name getloadavg getsubopt grantpt mkdtemp
     mkostemp mkostemps mkstemp mkstemps ptsname random_r initstat_r srandom_r
     setstate_r realpath rpmatch setenv strtod strtoll strtoull unlockpt
     unsetenv])
@@ -50,6 +50,7 @@ AC_DEFUN([gl_STDLIB_MODULE_INDICATOR],
 
 AC_DEFUN([gl_STDLIB_H_DEFAULTS],
 [
+  GNULIB__EXIT=0;         AC_SUBST([GNULIB__EXIT])
   GNULIB_ATOLL=0;         AC_SUBST([GNULIB_ATOLL])
   GNULIB_CALLOC_POSIX=0;  AC_SUBST([GNULIB_CALLOC_POSIX])
   GNULIB_CANONICALIZE_FILE_NAME=0;  AC_SUBST([GNULIB_CANONICALIZE_FILE_NAME])
@@ -75,13 +76,12 @@ AC_DEFUN([gl_STDLIB_H_DEFAULTS],
   GNULIB_UNLOCKPT=0;      AC_SUBST([GNULIB_UNLOCKPT])
   GNULIB_UNSETENV=0;      AC_SUBST([GNULIB_UNSETENV])
   dnl Assume proper GNU behavior unless another module says otherwise.
+  HAVE__EXIT=1;              AC_SUBST([HAVE__EXIT])
   HAVE_ATOLL=1;              AC_SUBST([HAVE_ATOLL])
-  HAVE_CALLOC_POSIX=1;       AC_SUBST([HAVE_CALLOC_POSIX])
   HAVE_CANONICALIZE_FILE_NAME=1;  AC_SUBST([HAVE_CANONICALIZE_FILE_NAME])
   HAVE_DECL_GETLOADAVG=1;    AC_SUBST([HAVE_DECL_GETLOADAVG])
   HAVE_GETSUBOPT=1;          AC_SUBST([HAVE_GETSUBOPT])
   HAVE_GRANTPT=1;            AC_SUBST([HAVE_GRANTPT])
-  HAVE_MALLOC_POSIX=1;       AC_SUBST([HAVE_MALLOC_POSIX])
   HAVE_MKDTEMP=1;            AC_SUBST([HAVE_MKDTEMP])
   HAVE_MKOSTEMP=1;           AC_SUBST([HAVE_MKOSTEMP])
   HAVE_MKOSTEMPS=1;          AC_SUBST([HAVE_MKOSTEMPS])
@@ -89,7 +89,6 @@ AC_DEFUN([gl_STDLIB_H_DEFAULTS],
   HAVE_MKSTEMPS=1;           AC_SUBST([HAVE_MKSTEMPS])
   HAVE_PTSNAME=1;            AC_SUBST([HAVE_PTSNAME])
   HAVE_RANDOM_R=1;           AC_SUBST([HAVE_RANDOM_R])
-  HAVE_REALLOC_POSIX=1;      AC_SUBST([HAVE_REALLOC_POSIX])
   HAVE_REALPATH=1;           AC_SUBST([HAVE_REALPATH])
   HAVE_RPMATCH=1;            AC_SUBST([HAVE_RPMATCH])
   HAVE_SETENV=1;             AC_SUBST([HAVE_SETENV])
@@ -100,9 +99,12 @@ AC_DEFUN([gl_STDLIB_H_DEFAULTS],
   HAVE_SYS_LOADAVG_H=0;      AC_SUBST([HAVE_SYS_LOADAVG_H])
   HAVE_UNLOCKPT=1;           AC_SUBST([HAVE_UNLOCKPT])
   HAVE_UNSETENV=1;           AC_SUBST([HAVE_UNSETENV])
+  REPLACE_CALLOC=0;          AC_SUBST([REPLACE_CALLOC])
   REPLACE_CANONICALIZE_FILE_NAME=0;  AC_SUBST([REPLACE_CANONICALIZE_FILE_NAME])
+  REPLACE_MALLOC=0;          AC_SUBST([REPLACE_MALLOC])
   REPLACE_MKSTEMP=0;         AC_SUBST([REPLACE_MKSTEMP])
   REPLACE_PUTENV=0;          AC_SUBST([REPLACE_PUTENV])
+  REPLACE_REALLOC=0;         AC_SUBST([REPLACE_REALLOC])
   REPLACE_REALPATH=0;        AC_SUBST([REPLACE_REALPATH])
   REPLACE_SETENV=0;          AC_SUBST([REPLACE_SETENV])
   REPLACE_STRTOD=0;          AC_SUBST([REPLACE_STRTOD])