Fix compilation warnings

SharedSources/ServerBrowsing/General/VLCLocalNetworkServiceBrowserMediaDiscoverer.m

@@ -73,11 +73,11 @@
 }
 
 #pragma mark - VLCMediaListDelegate
-- (void)mediaList:(VLCMediaList *)aMediaList mediaAdded:(VLCMedia *)media atIndex:(NSInteger)index
+- (void)mediaList:(VLCMediaList *)aMediaList mediaAdded:(VLCMedia *)media atIndex:(NSUInteger)index
 {
     [self.delegate localNetworkServiceBrowserDidUpdateServices:self];
 }
-- (void)mediaList:(VLCMediaList *)aMediaList mediaRemovedAtIndex:(NSInteger)index
+- (void)mediaList:(VLCMediaList *)aMediaList mediaRemovedAtIndex:(NSUInteger)index
 {
     [self.delegate localNetworkServiceBrowserDidUpdateServices:self];
 }

SharedSources/ServerBrowsing/General/VLCNetworkServerBrowserVLCMedia.m

@@ -86,7 +86,7 @@
 
 #pragma mark - media list delegate
 
-- (void)mediaList:(VLCMediaList *)aMediaList mediaAdded:(VLCMedia *)media atIndex:(NSInteger)index
+- (void)mediaList:(VLCMediaList *)aMediaList mediaAdded:(VLCMedia *)media atIndex:(NSUInteger)index
 {
     [media addOptions:self.mediaOptions];
     if (![self shouldFilterMedia:media]) {
@@ -98,7 +98,7 @@
     [self.delegate networkServerBrowserDidUpdate:self];
 }
 
-- (void)mediaList:(VLCMediaList *)aMediaList mediaRemovedAtIndex:(NSInteger)index
+- (void)mediaList:(VLCMediaList *)aMediaList mediaRemovedAtIndex:(NSUInteger)index
 {
     VLCMedia *media = [self.mediaListUnfiltered mediaAtIndex:index];
     NSInteger mediaIndex = [self.mediaList indexOfMedia:media];

Sources/VLCBoxController.h

@@ -19,7 +19,9 @@
 @interface VLCBoxController : VLCCloudStorageController
 
 - (void)stopSession;
-- (void)downloadFileToDocumentFolder:(BoxFile *)file;
 - (BOOL)hasMoreFiles;
+#if TARGET_OS_IOS
+- (void)downloadFileToDocumentFolder:(BoxFile *)file;
+#endif
 
 @end

Sources/VLCPlaybackController.m

@@ -728,10 +728,13 @@ typedef NS_ENUM(NSUInteger, VLCAspectRatio) {
 
             /* on-the-fly values through hidden API */
             NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wundeclared-selector"
             [_mediaPlayer performSelector:@selector(setTextRendererFont:) withObject:[defaults objectForKey:kVLCSettingSubtitlesFont]];
             [_mediaPlayer performSelector:@selector(setTextRendererFontSize:) withObject:[defaults objectForKey:kVLCSettingSubtitlesFontSize]];
             [_mediaPlayer performSelector:@selector(setTextRendererFontColor:) withObject:[defaults objectForKey:kVLCSettingSubtitlesFontColor]];
             [_mediaPlayer performSelector:@selector(setTextRendererFontForceBold:) withObject:[defaults objectForKey:kVLCSettingSubtitlesBoldFont]];
+#pragma clang diagnostic pop
         } break;
 
         case VLCMediaPlayerStateError: {