-#serial 3
-dnl Copyright (C) 2005, 2006 Free Software Foundation, Inc.
+#serial 4
+dnl Copyright (C) 2005, 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_PAGEALIGN_ALLOC],
[
dnl Persuade glibc <sys/mman.h> to define MAP_ANONYMOUS.
- AC_REQUIRE([AC_GNU_SOURCE])
+ AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
AC_LIBOBJ([pagealign_alloc])
gl_PREREQ_PAGEALIGN_ALLOC