From 95abd05e31f10d86d82ae7c3de9d804db9478def Mon Sep 17 00:00:00 2001
From: Andre Noll <maan@systemlinux.org>
Date: Sat, 28 Feb 2009 22:39:50 +0100
Subject: [PATCH] Define _GNU_SOURCE to get the ucred structure.

This is needed for glibc >= 2.8.
---
 configure.ac | 1 +
 net.c        | 6 ++++++
 2 files changed, 7 insertions(+)

diff --git a/configure.ac b/configure.ac
index dca49203..f783db78 100644
--- a/configure.ac
+++ b/configure.ac
@@ -223,6 +223,7 @@ AC_SEARCH_LIBS([inet_ntoa],[nsl],[],[
 ########################################################################### ucred
 AC_MSG_CHECKING(for struct ucred)
 AC_TRY_LINK([
+	#define _GNU_SOURCE
 	#include <sys/types.h>
 	#include <sys/socket.h>
 ],[
diff --git a/net.c b/net.c
index 2a3fc72b..88b3e3cc 100644
--- a/net.c
+++ b/net.c
@@ -6,6 +6,12 @@
 
 /** \file net.c Networking-related helper functions. */
 
+/*
+ * Since glibc 2.8, the _GNU_SOURCE feature test macro must be defined in order
+ * to obtain the definition of the ucred structure.
+ */
+#define _GNU_SOURCE
+
 #include <netdb.h>
 
 /* At least NetBSD needs these. */
-- 
2.39.5