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-rw-r--r--m4/mempcpy.m44
1 files changed, 2 insertions, 2 deletions
diff --git a/m4/mempcpy.m4 b/m4/mempcpy.m4
index 9e854e81ee..13293b5569 100644
--- a/m4/mempcpy.m4
+++ b/m4/mempcpy.m4
@@ -1,4 +1,4 @@
-# mempcpy.m4 serial 7
+# mempcpy.m4 serial 8
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,
@@ -7,7 +7,7 @@ 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])
dnl The mempcpy() declaration in lib/string_.h uses 'restrict'.
AC_REQUIRE([AC_C_RESTRICT])