symlink.m4
No OneTemporary
Actions

Size

1 KB

Referenced Files

None

Subscribers

None

symlink.m4
View Options

	# serial 5
	# See if we need to provide symlink replacement.

	dnl Copyright (C) 2009-2011 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.

	# Written by Eric Blake.

	AC_DEFUN([gl_FUNC_SYMLINK],
	[
	AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
	AC_CHECK_FUNCS_ONCE([symlink])
	dnl The best we can do on mingw is provide a dummy that always fails, so
	dnl that compilation can proceed with fewer ifdefs. On FreeBSD 7.2, AIX 7.1,
	dnl and Solaris 9, we want to fix a bug with trailing slash handling.
	if test $ac_cv_func_symlink = no; then
	HAVE_SYMLINK=0
	else
	AC_CACHE_CHECK([whether symlink handles trailing slash correctly],
	[gl_cv_func_symlink_works],
	[AC_RUN_IFELSE(
	[AC_LANG_PROGRAM(
	[[#include <unistd.h>
	]],
	[[int result = 0;
	if (!symlink ("a", "conftest.link/"))
	result \|= 1;
	if (symlink ("conftest.f", "conftest.lnk2"))
	result \|= 2;
	else if (!symlink ("a", "conftest.lnk2/"))
	result \|= 4;
	return result;
	]])],
	[gl_cv_func_symlink_works=yes], [gl_cv_func_symlink_works=no],
	[gl_cv_func_symlink_works="guessing no"])
	rm -f conftest.f conftest.link conftest.lnk2])
	if test "$gl_cv_func_symlink_works" != yes; then
	REPLACE_SYMLINK=1
	fi
	fi
	])