From 607d991424006c083be63878b6a606e76679e1ce Mon Sep 17 00:00:00 2001
From: Ondrej Zajicek <santiago@crfreenet.org>
Date: Wed, 14 Apr 2010 15:35:08 +0200
Subject: Fixes build on newer Linux systems.

---
 sysdep/unix/io.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/sysdep/unix/io.c b/sysdep/unix/io.c
index c9e6fe1..dc7146f 100644
--- a/sysdep/unix/io.c
+++ b/sysdep/unix/io.c
@@ -7,6 +7,10 @@
  *	Can be freely distributed and used under the terms of the GNU GPL.
  */
 
+/* Unfortunately, some glibc versions hide parts of RFC 3542 API
+   if _GNU_SOURCE is not defined. */
+#define _GNU_SOURCE 1
+
 #include <stdio.h>
 #include <stdlib.h>
 #include <time.h>
-- 
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