Fix build of unit tests with VS2013.

include/mediastreamer2/mediastream.h

@@ -749,7 +749,7 @@ MS2_PUBLIC float video_stream_get_received_framerate(const VideoStream *stream);
 /**
  * Returns the name of the video display filter on the current platform.
 **/
-const char *video_stream_get_default_video_renderer(void);
+MS2_PUBLIC const char *video_stream_get_default_video_renderer(void);
 
 MS2_PUBLIC void video_stream_enable_self_view(VideoStream *stream, bool_t val);
 MS2_PUBLIC unsigned long video_stream_get_native_window_id(VideoStream *stream);

tester/mediastreamer2_tester.c

@@ -301,7 +301,15 @@ void helper(const char *name) {
 		return -1; \
 	}
 
-#ifndef WINAPI_FAMILY_PHONE_APP
+#if defined(WIN32) && WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
+#define BUILD_ENTRY_POINT 1
+#elif TARGET_OS_MAC || TARGET_OS_IPHONE
+#define BUILD_ENTRY_POINT 1
+#else
+#define BUILD_ENTRY_POINT 0
+#endif
+
+#if BUILD_ENTRY_POINT
 #if TARGET_OS_MAC || TARGET_OS_IPHONE
 int apple_main (int argc, char *argv[]) {
 #else