avutil/internal: Suppress empty body warning from emms_c()

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

diff --git a/libavutil/internal.h b/libavutil/internal.h
index 08ee6e5..61bc027 100644 (file)
--- a/libavutil/internal.h
+++ b/libavutil/internal.h
@@ -47,7 +47,7 @@
 #endif
 
 #ifndef emms_c
-#   define emms_c()
+#   define emms_c() while(0)
 #endif
 
 #ifndef attribute_align_arg