X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=m4%2Fsymlink.m4;h=680c14f6610f9e25223a0b3e3e27a9007a187b02;hb=fb733077fcd97a36e1ffdb292387943df8e1b9b4;hp=abea0459a09500e06a728be706bce7b5750e54e7;hpb=d9d5054ceb34c7e5b1dc64e5477ac6f89969a423;p=gnulib.git

diff --git a/m4/symlink.m4 b/m4/symlink.m4
index abea0459a..680c14f66 100644
--- a/m4/symlink.m4
+++ b/m4/symlink.m4
@@ -1,7 +1,7 @@
-# serial 1
+# serial 5
 # See if we need to provide symlink replacement.
 
-dnl Copyright (C) 2009 Free Software Foundation, Inc.
+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.
@@ -13,23 +13,31 @@ 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 Solaris 9, we
-  dnl want to fix a bug with trailing slash handling.
+  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 $ac_cv_func_symlink = no; then
     HAVE_SYMLINK=0
-    AC_LIBOBJ([symlink])
   else
     AC_CACHE_CHECK([whether symlink handles trailing slash correctly],
       [gl_cv_func_symlink_works],
       [AC_RUN_IFELSE(
          [AC_LANG_PROGRAM(
            [[#include <unistd.h>
-]], [[return !symlink ("a", "conftest.link/");]])],
+           ]],
+           [[int result = 0;
+             if (!symlink ("a", "conftest.link/"))
+               result |= 1;
+             if (symlink ("conftest.f", "conftest.lnk2"))
+               result |= 2;
+             else if (!symlink ("a", "conftest.lnk2/"))
+               result |= 4;
+             return result;
+           ]])],
          [gl_cv_func_symlink_works=yes], [gl_cv_func_symlink_works=no],
-         [gl_cv_func_symlink_works="guessing no"])])
+         [gl_cv_func_symlink_works="guessing no"])
+      rm -f conftest.f conftest.link conftest.lnk2])
     if test "$gl_cv_func_symlink_works" != yes; then
       REPLACE_SYMLINK=1
-      AC_LIBOBJ([symlink])
     fi
   fi
 ])