X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=m4%2Flchmod.m4;h=7f76c56efd085a18b64b72d5cc481e26cfc8dd31;hb=9e83e486f6e0949ad5d3843011ae88c495681727;hp=06467a04b05726ffe731ccf8b04a47d5d50edda8;hpb=901bc47c9a8db854db97bb28780352748020c81d;p=gnulib.git

diff --git a/m4/lchmod.m4 b/m4/lchmod.m4
index 06467a04b..7f76c56ef 100644
--- a/m4/lchmod.m4
+++ b/m4/lchmod.m4
@@ -1,6 +1,6 @@
-#serial 2
+#serial 3
 
-dnl Copyright (C) 2005, 2006 Free Software Foundation, Inc.
+dnl Copyright (C) 2005-2006, 2008-2012 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.
@@ -10,5 +10,13 @@ dnl Provide a replacement for lchmod on hosts that lack it.
 
 AC_DEFUN([gl_FUNC_LCHMOD],
 [
+  AC_REQUIRE([gl_SYS_STAT_H_DEFAULTS])
+
+  dnl Persuade glibc <sys/stat.h> to declare lchmod().
+  AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
+
   AC_CHECK_FUNCS_ONCE([lchmod])
+  if test $ac_cv_func_lchmod = no; then
+    HAVE_LCHMOD=0
+  fi
 ])