X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=m4%2Fstrchrnul.m4;h=7c1273aa8c123a1e9faca67ade5767d8d74ad6b4;hb=b4feec417c7eae7c4a920986d8c81659ac5c9a79;hp=e778d51c7fbf75a78e88172cc350f53a3eee8943;hpb=1e4ece4ab9850fbfa88c9ec43ea518c7bc266792;p=gnulib.git

diff --git a/m4/strchrnul.m4 b/m4/strchrnul.m4
index e778d51c7..7c1273aa8 100644
--- a/m4/strchrnul.m4
+++ b/m4/strchrnul.m4
@@ -1,4 +1,4 @@
-# strchrnul.m4 serial 4
+# strchrnul.m4 serial 6
 dnl Copyright (C) 2003, 2007 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -7,8 +7,9 @@ dnl with or without modifications, as long as this notice is preserved.
 AC_DEFUN([gl_FUNC_STRCHRNUL],
 [
   dnl Persuade glibc <string.h> to declare strchrnul().
-  AC_REQUIRE([AC_GNU_SOURCE])
+  AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
 
+  AC_REQUIRE([gl_HEADER_STRING_H_DEFAULTS])
   AC_REPLACE_FUNCS(strchrnul)
   if test $ac_cv_func_strchrnul = no; then
     HAVE_STRCHRNUL=0