[FFmpeg-devel] [PATCH 08/10] avcodec/x86/fdct: guard usage of undefined functions with preprocessor

[Kacper Michajłow]

The asumption is that DCE will remove references to those functions.
However some compilers with certain instrumentation enabled doesn't DCE
those at all, resulting in linking failure. Tested with cl.exe -RTCu -RTCs.

Signed-off-by: Kacper Michajłow <kasper93 at gmail.com>
---
 libavcodec/x86/fdctdsp_init.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/libavcodec/x86/fdctdsp_init.c b/libavcodec/x86/fdctdsp_init.c
index 92a842433d..d43e45d220 100644
--- a/libavcodec/x86/fdctdsp_init.c
+++ b/libavcodec/x86/fdctdsp_init.c
@@ -31,8 +31,10 @@ av_cold void ff_fdctdsp_init_x86(FDCTDSPContext *c, AVCodecContext *avctx,
 
     if (!high_bit_depth) {
         if ((dct_algo == FF_DCT_AUTO || dct_algo == FF_DCT_MMX)) {
+#if HAVE_SSE2_INLINE
             if (INLINE_SSE2(cpu_flags))
                 c->fdct = ff_fdct_sse2;
+#endif
         }
     }
 }
-- 
2.50.1