-# mempcpy.m4 serial 3
-dnl Copyright (C) 2003, 2004 Free Software Foundation, Inc.
+# mempcpy.m4 serial 11
+dnl Copyright (C) 2003-2004, 2006-2007, 2009-2013 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],
[
- AC_LIBSOURCES([mempcpy.c, mempcpy.h])
-
dnl Persuade glibc <string.h> to declare mempcpy().
- AC_REQUIRE([AC_GNU_SOURCE])
+ AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
+
+ dnl The mempcpy() declaration in lib/string.in.h uses 'restrict'.
+ AC_REQUIRE([AC_C_RESTRICT])
- AC_REPLACE_FUNCS(mempcpy)
+ 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
])