private text renderer API patch for MobileVLCKit broke OS X build

Here's a quick patch that should be applied to VLCKit so as to not break compilation for OS X with the latest experimental changes made in MobileVLCKit

Florent

Signed-off-by: Felix Paul Kühne <fkuehne@videolan.org>

Sources/VLCMediaPlayer.m

@@ -447,20 +447,26 @@ static void HandleMediaPlayerMediaChanged(const libvlc_event_t * event, void * s
     return libvlc_video_get_spu_delay(_playerInstance);
 }
 
+#if TARGET_OS_IPHONE
 - (void)setTextRendererFontSize:(NSNumber *)fontSize
 {
     libvlc_video_set_textrenderer_int(_playerInstance, libvlc_textrender_fontsize, [fontSize intValue]);
 }
+#endif
 
+#if TARGET_OS_IPHONE
 - (void)setTextRendererFont:(NSString *)fontname
 {
     libvlc_video_set_textrenderer_string(_playerInstance, libvlc_textrender_font, [fontname UTF8String]);
 }
+#endif
 
+#if TARGET_OS_IPHONE
 - (void)setTextRendererFontColor:(NSNumber *)fontColor
 {
     libvlc_video_set_textrenderer_int(_playerInstance, libvlc_textrender_fontcolor, [fontColor intValue]);
 }
+#endif
 
 #pragma mark -
 #pragma mark Video Crop geometry