Merge commit '4719040c'

* commit '4719040c':
  libx264: Define X264_API_IMPORTS on MSVC/ICL
Merged-by: Michael Niedermayer <michaelni@gmx.at>

libavcodec/libx264.c

@@ -25,6 +25,11 @@
 #include "libavutil/pixdesc.h"
 #include "avcodec.h"
 #include "internal.h"
+
+#if defined(_MSC_VER)
+#define X264_API_IMPORTS 1
+#endif
+
 #include <x264.h>
 #include <float.h>
 #include <math.h>