X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=m4%2Fmempcpy.m4;h=7214a4b39ab0c09ccd6a45610ca986a74f6e7795;hb=395f9e6a19b504609aa8b0bd7f8cc55d4547d8dd;hp=a5ed8de838ec294ca1cb202aafedf027e630f16f;hpb=521cb5f96a03acba4dd1b3502edff17aa8b52d76;p=gnulib.git

diff --git a/m4/mempcpy.m4 b/m4/mempcpy.m4
index a5ed8de83..7214a4b39 100644
--- a/m4/mempcpy.m4
+++ b/m4/mempcpy.m4
@@ -1,19 +1,22 @@
-# mempcpy.m4 serial 1
-dnl Copyright (C) 2003 Free Software Foundation, Inc.
-dnl This file is free software, distributed under the terms of the GNU
-dnl General Public License.  As a special exception to the GNU General
-dnl Public License, this file may be distributed as part of a program
-dnl that contains a configuration script generated by Autoconf, under
-dnl the same distribution terms as the rest of that program.
+# mempcpy.m4 serial 11
+dnl Copyright (C) 2003-2004, 2006-2007, 2009-2011 Free Software Foundation,
+dnl 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_MEMPCPY],
 [
   dnl Persuade glibc <string.h> to declare mempcpy().
-  AC_REQUIRE([AC_GNU_SOURCE])
+  AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
 
-  AC_REPLACE_FUNCS(mempcpy)
+  dnl The mempcpy() declaration in lib/string.in.h uses 'restrict'.
+  AC_REQUIRE([AC_C_RESTRICT])
+
+  AC_REQUIRE([gl_HEADER_STRING_H_DEFAULTS])
+  AC_CHECK_FUNCS([mempcpy])
   if test $ac_cv_func_mempcpy = no; then
-    gl_PREREQ_MEMPCPY
+    HAVE_MEMPCPY=0
   fi
 ])