[FFmpeg-devel] [PATCH] Fix link errors when HAVE_X86ASM is not defined

[Haihao Xiang]

This fixes the link errors below:

LD      ffmpeg_g
libavfilter/libavfilter.so: undefined reference to `ff_scene_sad_avx2'
libavfilter/libavfilter.so: undefined reference to `ff_scene_sad_sse2'
collect2: error: ld returned 1 exit status
Makefile:108: recipe for target 'ffmpeg_g' failed
make: *** [ffmpeg_g] Error 1

Signed-off-by: Haihao Xiang <haihao.xiang at intel.com>
---
 libavfilter/x86/scene_sad_init.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/libavfilter/x86/scene_sad_init.c b/libavfilter/x86/scene_sad_init.c
index 461fa406d9..7e93ef44d3 100644
--- a/libavfilter/x86/scene_sad_init.c
+++ b/libavfilter/x86/scene_sad_init.c
@@ -20,6 +20,7 @@
 #include "libavutil/x86/cpu.h"
 #include "libavfilter/scene_sad.h"
 
+#if HAVE_X86ASM
 #define SCENE_SAD_FUNC(FUNC_NAME, ASM_FUNC_NAME, MMSIZE)                      \
 void ASM_FUNC_NAME(SCENE_SAD_PARAMS);                                         \
                                                                               \
@@ -50,3 +51,12 @@ ff_scene_sad_fn ff_scene_sad_get_fn_x86(int depth)
     }
     return NULL;
 }
+
+#else
+
+ff_scene_sad_fn ff_scene_sad_get_fn_x86(int depth)
+{
+    return NULL;
+}
+
+#endif
\ No newline at end of file
-- 
2.17.1