--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/m4/strchrnul.m4	Tue Dec 22 05:33:32 2009 +0000
@@ -0,0 +1,21 @@
+# strchrnul.m4 serial 7
+dnl Copyright (C) 2003, 2007, 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,
+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_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
+    gl_PREREQ_STRCHRNUL
+  fi
+])
+
+# Prerequisites of lib/strchrnul.c.
+AC_DEFUN([gl_PREREQ_STRCHRNUL], [:])