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w32pthreads: fix mingw build on x86 with -msse2 or higher 

When SSE2 or higher compiler optimizations are used, mingw uses
the _mm_mfence intrinsic for MemoryBarrier, however it doesn't include
the appropriate headers automatically.

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
This commit is contained in:
Hendrik Leppkes 2015-10-14 23:18:17 +02:00 committed by Luca Barbato
parent b52307933b
commit 68e00ad66d
1 changed files with 5 additions and 0 deletions
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5
compat/w32pthreads.h
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@ -39,6 +39,11 @@
#include <windows.h>
#include <process.h>
/* MinGW requires the intrinsics header for the pthread_once fallback code */
#if _WIN32_WINNT < 0x0600 && defined(__MINGW32__)
#include <intrin.h>
#endif
#include "libavutil/attributes.h"
#include "libavutil/internal.h"
#include "libavutil/mem.h"