--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/m4/mempcpy.m4	Sun Aug 16 17:16:49 2009 +0000
@@ -0,0 +1,26 @@
+# mempcpy.m4 serial 9
+dnl Copyright (C) 2003, 2004, 2006, 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,
+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_USE_SYSTEM_EXTENSIONS])
+
+  dnl The mempcpy() declaration in lib/string.in.h uses 'restrict'.
+  AC_REQUIRE([AC_C_RESTRICT])
+
+  AC_REQUIRE([gl_HEADER_STRING_H_DEFAULTS])
+  AC_REPLACE_FUNCS(mempcpy)
+  if test $ac_cv_func_mempcpy = no; then
+    HAVE_MEMPCPY=0
+    gl_PREREQ_MEMPCPY
+  fi
+])
+
+# Prerequisites of lib/mempcpy.c.
+AC_DEFUN([gl_PREREQ_MEMPCPY], [
+  :
+])