dirfd: Avoid link error on AIX 7.1.

[gnulib.git] / m4 / chdir-safer.m4

diff --git a/m4/chdir-safer.m4 b/m4/chdir-safer.m4
index 22ad506..dfc1318 100644 (file)
--- a/m4/chdir-safer.m4
+++ b/m4/chdir-safer.m4
@@ -1,5 +1,5 @@
-#serial 3
-dnl Copyright (C) 2005, 2006 Free Software Foundation, Inc.
+#serial 4
+dnl Copyright (C) 2005-2006, 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.
@@ -7,4 +7,5 @@ dnl with or without modifications, as long as this notice is preserved.
 AC_DEFUN([gl_CHDIR_SAFER],
 [
   AC_LIBOBJ([chdir-safer])
+  AC_CHECK_FUNCS_ONCE([readlink])
 ])