sys_types: Avoid autoconf warning about gl_SYS_TYPES_H.

* m4/sys_types_h.m4 (gl_SYS_TYPES_H): Define through AC_DEFUN_ONCE.

diff --git a/ChangeLog b/ChangeLog
index 75fd985..31f07e3 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,10 @@
 2013-03-02  Bruno Haible  <bruno@clisp.org>
 
+       sys_types: Avoid autoconf warning about gl_SYS_TYPES_H.
+       * m4/sys_types_h.m4 (gl_SYS_TYPES_H): Define through AC_DEFUN_ONCE.
+
+2013-03-02  Bruno Haible  <bruno@clisp.org>
+
        gettext: Update to version 0.18.2.
        * m4/intl.m4, m4/po.m4: Update from gettext-0.18.2. In particular:
        2012-12-07  Stefano Lattarini  <stefano.lattarini@gmailcom>

diff --git a/m4/sys_types_h.m4 b/m4/sys_types_h.m4
index 6132727..d15c1b3 100644 (file)
--- a/m4/sys_types_h.m4
+++ b/m4/sys_types_h.m4
@@ -1,10 +1,10 @@
-# sys_types_h.m4 serial 4
+# sys_types_h.m4 serial 5
 dnl Copyright (C) 2011-2013 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_SYS_TYPES_H],
+AC_DEFUN_ONCE([gl_SYS_TYPES_H],
 [
   AC_REQUIRE([gl_SYS_TYPES_H_DEFAULTS])
   gl_NEXT_HEADERS([sys/types.h])