Sync with the latest Gnulib code (6f2d632)

1 files changed, 0 insertions, 83 deletions

diff --git a/gl/m4/fcntl.m4 b/gl/m4/fcntl.m4
deleted file mode 100644
index fcb5f447..00000000
--- a/gl/m4/fcntl.m4
+++ /dev/null
@@ -1,83 +0,0 @@
-# fcntl.m4 serial 3
-dnl Copyright (C) 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.
-
-# For now, this module ensures that fcntl()
-# - supports F_DUPFD correctly
-# - supports or emulates F_DUPFD_CLOEXEC
-# - supports F_GETFD
-# Still to be ported to mingw:
-# - F_SETFD
-# - F_GETFL, F_SETFL
-# - F_GETOWN, F_SETOWN
-# - F_GETLK, F_SETLK, F_SETLKW
-AC_DEFUN([gl_FUNC_FCNTL],
-[
-  dnl Persuade glibc to expose F_DUPFD_CLOEXEC.
-  AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
-  AC_REQUIRE([gl_FCNTL_H_DEFAULTS])
-  AC_REQUIRE([AC_CANONICAL_HOST])
-  AC_CHECK_FUNCS_ONCE([fcntl])
-  if test $ac_cv_func_fcntl = no; then
-    gl_REPLACE_FCNTL
-  else
-    dnl cygwin 1.5.x F_DUPFD has wrong errno, and allows negative target
-    AC_CACHE_CHECK([whether fcntl handles F_DUPFD correctly],
-      [gl_cv_func_fcntl_f_dupfd_works],
-      [AC_RUN_IFELSE([AC_LANG_PROGRAM([[
-#include <fcntl.h>
-]], [[return fcntl (0, F_DUPFD, -1) != -1;
-         ]])],
-         [gl_cv_func_fcntl_f_dupfd_works=yes],
-         [gl_cv_func_fcntl_f_dupfd_works=no],
-         [# Guess that it works on glibc systems
-          case $host_os in #((
-            *-gnu*) gl_cv_func_fcntl_f_dupfd_works="guessing yes";;
-            *)      gl_cv_func_fcntl_f_dupfd_works="guessing no";;
-          esac])])
-    case $gl_cv_func_fcntl_f_dupfd_works in
-      *yes) ;;
-      *) gl_REPLACE_FCNTL
-        AC_DEFINE([FCNTL_DUPFD_BUGGY], [1], [Define this to 1 if F_DUPFD
-          behavior does not match POSIX]) ;;
-    esac
-
-    dnl Many systems lack F_DUPFD_CLOEXEC
-    AC_CACHE_CHECK([whether fcntl understands F_DUPFD_CLOEXEC],
-      [gl_cv_func_fcntl_f_dupfd_cloexec],
-      [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
-#include <fcntl.h>
-#ifndef F_DUPFD_CLOEXEC
-choke me
-#endif
-         ]])],
-         [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
-#ifdef __linux__
-/* The Linux kernel only added F_DUPFD_CLOEXEC in 2.6.24, so we always replace
-   it to support the semantics on older kernels that failed with EINVAL.  */
-choke me
-#endif
-           ]])],
-           [gl_cv_func_fcntl_f_dupfd_cloexec=yes],
-           [gl_cv_func_fcntl_f_dupfd_cloexec="needs runtime check"])],
-         [gl_cv_func_fcntl_f_dupfd_cloexec=no])])
-    if test "$gl_cv_func_fcntl_f_dupfd_cloexec" != yes; then
-      gl_REPLACE_FCNTL
-      dnl No witness macro needed for this bug.
-    fi
-  fi
-])
-
-AC_DEFUN([gl_REPLACE_FCNTL],
-[
-  AC_REQUIRE([gl_FCNTL_H_DEFAULTS])
-  AC_CHECK_FUNCS_ONCE([fcntl])
-  if test $ac_cv_func_fcntl = no; then
-    HAVE_FCNTL=0
-  else
-    REPLACE_FCNTL=1
-  fi
-  AC_LIBOBJ([fcntl])
-])