fix build on older versions of mac osx, thanks twisted!

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@6814 65c4cc65-6c06-0410-ace0-fbb531ad65f3

utils/streamplayer.c

@@ -31,7 +31,7 @@
 #include <unistd.h>
 #include <sys/types.h>
 #include <sys/socket.h>
-#if defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__NetBSD__)
+#if defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__NetBSD__) || defined(__Darwin__)
 #include <netinet/in.h>
 #endif
 #include <sys/time.h>