Add attribute that forces alignment of stack to functions that need it.

Necessary for systems that don't align by default to 16 bytes, required by some
SSE instructions.
Requires GCC >= 4.2.
Based on patch by Gaël Chardon.

Originally committed as revision 10106 to svn://svn.ffmpeg.org/ffmpeg/trunk

1 files changed, 1 insertions, 1 deletions

diff --git a/libavcodec/pthread.c b/libavcodec/pthread.c
index 244bb520dd..702adb533d 100644
--- a/libavcodec/pthread.c
+++ b/libavcodec/pthread.c
@@ -42,7 +42,7 @@ typedef struct ThreadContext {
     int done;
 } ThreadContext;
 
-static void* worker(void *v)
+static void* attribute_align_arg worker(void *v)
 {
     AVCodecContext *avctx = v;
     ThreadContext *c = avctx->thread_opaque;