From 58aa06bea01c7d5a4ed06c502838a31d518f6a6b Mon Sep 17 00:00:00 2001
From: Marton Balint <cus@passwd.hu>
Date: Thu, 14 Apr 2022 23:14:27 +0200
Subject: [PATCH] avutil/cpu: #define _GNU_SOURCE before including any standard
 headers

Otherwise its effect might not work causing CPU_COUNT to not get defined.

Fixes cpu count detection to actually use sched_getaffinity if available.

Signed-off-by: Marton Balint <cus@passwd.hu>
---
 libavutil/cpu.c | 20 +++++++++++---------
 1 file changed, 11 insertions(+), 9 deletions(-)

diff --git a/libavutil/cpu.c b/libavutil/cpu.c
index 833c220192..24b99d2554 100644
--- a/libavutil/cpu.c
+++ b/libavutil/cpu.c
@@ -16,16 +16,7 @@
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
-#include <stddef.h>
-#include <stdint.h>
-#include <stdatomic.h>
-
-#include "attributes.h"
-#include "cpu.h"
-#include "cpu_internal.h"
 #include "config.h"
-#include "opt.h"
-#include "common.h"
 
 #if HAVE_SCHED_GETAFFINITY
 #ifndef _GNU_SOURCE
@@ -33,6 +24,17 @@
 #endif
 #include <sched.h>
 #endif
+
+#include <stddef.h>
+#include <stdint.h>
+#include <stdatomic.h>
+
+#include "attributes.h"
+#include "cpu.h"
+#include "cpu_internal.h"
+#include "opt.h"
+#include "common.h"
+
 #if HAVE_GETPROCESSAFFINITYMASK || HAVE_WINRT
 #include <windows.h>
 #endif