-# getaddrinfo.m4 serial 12
+# getaddrinfo.m4 serial 13
dnl Copyright (C) 2004, 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,
AC_REQUIRE([gl_SOCKET_FAMILIES])
AC_REQUIRE([gl_HEADER_SYS_SOCKET])
AC_REQUIRE([AC_C_INLINE])
- AC_REQUIRE([AC_GNU_SOURCE])
+ AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
AC_CHECK_HEADERS_ONCE(netinet/in.h netdb.h)
AC_CHECK_DECLS([getaddrinfo, freeaddrinfo, gai_strerror, getnameinfo],,,[
/* sys/types.h is not needed according to POSIX, but the