-#serial 3
-dnl Run a program to determine whether whether link(2) follows symlinks.
+# serial 10
+dnl Run a program to determine whether link(2) follows symlinks.
dnl Set LINK_FOLLOWS_SYMLINKS accordingly.
-AC_DEFUN([jm_AC_FUNC_LINK_FOLLOWS_SYMLINK],
+# Copyright (C) 1999-2001, 2004-2006, 2009 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.
+
+AC_DEFUN([gl_AC_FUNC_LINK_FOLLOWS_SYMLINK],
[dnl
AC_CACHE_CHECK(
[whether link(2) dereferences a symlink specified with a trailing slash],
- jm_ac_cv_func_link_follows_symlink,
+ gl_ac_cv_func_link_follows_symlink,
[
- dnl poor-man's AC_REQUIRE: FIXME: repair this once autoconf-3 provides
- dnl the appropriate framework.
- test -z "$ac_cv_header_unistd_h" \
- && AC_CHECK_HEADERS(unistd.h)
-
# Create a regular file.
echo > conftest.file
AC_TRY_RUN(
[
# include <sys/types.h>
# include <sys/stat.h>
-# ifdef HAVE_UNISTD_H
-# include <unistd.h>
-# endif
+# include <unistd.h>
+# include <stdlib.h>
# define SAME_INODE(Stat_buf_1, Stat_buf_2) \
((Stat_buf_1).st_ino == (Stat_buf_2).st_ino \
return SAME_INODE (sb_hard, sb_file) ? 0 : 1;
}
],
- jm_ac_cv_func_link_follows_symlink=yes,
- jm_ac_cv_func_link_follows_symlink=no,
- jm_ac_cv_func_link_follows_symlink=yes dnl We're cross compiling.
+ gl_ac_cv_func_link_follows_symlink=yes,
+ gl_ac_cv_func_link_follows_symlink=no,
+ gl_ac_cv_func_link_follows_symlink=yes dnl We're cross compiling.
)
])
- if test $jm_ac_cv_func_link_follows_symlink = yes; then
- AC_DEFINE(LINK_FOLLOWS_SYMLINKS, 1,
+ if test $gl_ac_cv_func_link_follows_symlink = yes; then
+ AC_DEFINE([LINK_FOLLOWS_SYMLINKS], [1],
[Define if `link(2)' dereferences symbolic links.])
fi
])