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-rw-r--r--libavformat/udp.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libavformat/udp.c b/libavformat/udp.c
index 62c1c7c107..d6522bf0be 100644
--- a/libavformat/udp.c
+++ b/libavformat/udp.c
@@ -25,7 +25,7 @@
*/
#define _BSD_SOURCE /* Needed for using struct ip_mreq with recent glibc */
-#define _DARWIN_C_SOURCE /* Needed for using IP_MULTICAST_TTL on OS X */
+
#include "avformat.h"
#include "avio_internal.h"
#include "libavutil/parseutils.h"