From 7ece096767d329d0ea04b70a1fb2c8b8a96b47e0 Mon Sep 17 00:00:00 2001
From: David Carlier <devnexen@gmail.com>
Date: Tue, 8 Dec 2015 21:43:09 +0000
Subject: [PATCH] CLEANUP: haproxy: using _GNU_SOURCE instead of __USE_GNU
 macro.

In order to properly enable sched_setaffinity, in some versions of Linux,
it is rather _GNU_SOURCE than __USE_GNU (spotted on Alpine Linux for instance),
also for the sake of consistency as __USE_GNU seems not used across the code and
for last, it seems on Linux it is the best way to enable non portable code.
On Linux glibc's based versions, it seems _GNU_SOURCE defines __USE_GNU
it should be safe enough.
---
 src/haproxy.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/src/haproxy.c b/src/haproxy.c
index 04bfabd03..5cd337998 100644
--- a/src/haproxy.c
+++ b/src/haproxy.c
@@ -25,6 +25,7 @@
  *
  */
 
+#define _GNU_SOURCE
 #include <stdio.h>
 #include <stdlib.h>
 #include <unistd.h>
@@ -47,9 +48,7 @@
 #include <syslog.h>
 #include <grp.h>
 #ifdef USE_CPU_AFFINITY
-#define __USE_GNU
 #include <sched.h>
-#undef __USE_GNU
 #ifdef __FreeBSD__
 #include <sys/param.h>
 #include <sys/cpuset.h>