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-rw-r--r--m4/unlink.m416
1 files changed, 12 insertions, 4 deletions
diff --git a/m4/unlink.m4 b/m4/unlink.m4
index 626c3adf35..bed24665de 100644
--- a/m4/unlink.m4
+++ b/m4/unlink.m4
@@ -1,4 +1,4 @@
-# unlink.m4 serial 1
+# unlink.m4 serial 2
dnl Copyright (C) 2009 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
@@ -8,18 +8,26 @@ AC_DEFUN([gl_FUNC_UNLINK],
[
AC_REQUIRE([gl_AC_DOS])
AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
- dnl Detect Solaris 9 bug.
+ dnl Detect Solaris 9 and FreeBSD 7.2 bug.
AC_CACHE_CHECK([whether unlink honors trailing slashes],
[gl_cv_func_unlink_works],
[touch conftest.file
+ # Assume that if we have lstat, we can also check symlinks.
+ if test $ac_cv_func_lstat = yes; then
+ ln -s conftest.file conftest.lnk
+ fi
AC_RUN_IFELSE(
[AC_LANG_PROGRAM(
[[#include <stdio.h>
#include <errno.h>
-]], [[return !unlink ("conftest.file/") || errno != ENOTDIR;]])],
+]], [[if (!unlink ("conftest.file/") || errno != ENOTDIR) return 1;
+#if HAVE_LSTAT
+ if (!unlink ("conftest.lnk/") || errno != ENOTDIR) return 2;
+#endif
+ ]])],
[gl_cv_func_unlink_works=yes], [gl_cv_func_unlink_works=no],
[gl_cv_func_unlink_works="guessing no"])
- rm -f conftest.file])
+ rm -f conftest.file conftest.lnk])
if test x"$gl_cv_func_unlink_works" != xyes; then
REPLACE_UNLINK=1
AC_LIBOBJ([unlink])