[FFmpeg-cvslog] avutil/cpu: #define _GNU_SOURCE before including any standard headers

[Marton Balint]

ffmpeg | branch: master | Marton Balint <cus at passwd.hu> | Thu Apr 14 23:14:27 2022 +0200| [58aa06bea01c7d5a4ed06c502838a31d518f6a6b] | committer: Marton Balint

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 at passwd.hu>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=58aa06bea01c7d5a4ed06c502838a31d518f6a6b
---

 libavutil/cpu.c | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

diff --git a/libavutil/cpu.c b/libavutil/cpu.c
index 833c220192..24b99d2554 100644
--- a/libavutil/cpu.c
+++ b/libavutil/cpu.c
@@ -16,6 +16,15 @@
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
+#include "config.h"
+
+#if HAVE_SCHED_GETAFFINITY
+#ifndef _GNU_SOURCE
+# define _GNU_SOURCE
+#endif
+#include <sched.h>
+#endif
+
 #include <stddef.h>
 #include <stdint.h>
 #include <stdatomic.h>
@@ -23,16 +32,9 @@
 #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
-# define _GNU_SOURCE
-#endif
-#include <sched.h>
-#endif
 #if HAVE_GETPROCESSAFFINITYMASK || HAVE_WINRT
 #include <windows.h>
 #endif