-# link.m4 serial 3
-dnl Copyright (C) 2009 Free Software Foundation, Inc.
+# link.m4 serial 4
+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.
AC_CACHE_CHECK([whether link handles trailing slash correctly],
[gl_cv_func_link_works],
[touch conftest.a
+ # Assume that if we have lstat, we can also check symlinks.
+ if test $ac_cv_func_lstat = yes; then
+ ln -s conftest.a conftest.lnk
+ fi
AC_RUN_IFELSE(
[AC_LANG_PROGRAM(
[[#include <unistd.h>
-]], [[return !link ("conftest.a", "conftest.b/");]])],
+]], [[if (!link ("conftest.a", "conftest.b/")) return 1;
+#if HAVE_LSTAT
+ if (!link ("conftest.lnk/", "conftest.b")) return 2;
+#endif
+ ]])],
[gl_cv_func_link_works=yes], [gl_cv_func_link_works=no],
[gl_cv_func_link_works="guessing no"])
- rm -f conftest.a conftest.b])
+ rm -f conftest.a conftest.b conftest.lnk])
if test "$gl_cv_func_link_works" != yes; then
REPLACE_LINK=1
AC_LIBOBJ([link])