macosx: fixed compilation for llvm-gcc-4.2

modules/gui/macosx/StringUtility.m

@@ -280,7 +280,9 @@ unsigned int CocoaKeyToVLC(unichar i_key)
         theString = [theString stringByReplacingOccurrencesOfString:@"Ctrl" withString:@""];
     }
 
+#ifdef __clang__
 #pragma GCC diagnostic ignored "-Wformat"
+#endif
     if ([theString length] > 1) {
         if ([theString rangeOfString:@"Up"].location != NSNotFound)
             return [NSString stringWithFormat:@"%C", NSUpArrowFunctionKey];
@@ -336,7 +338,9 @@ unsigned int CocoaKeyToVLC(unichar i_key)
             return [NSString stringWithFormat:@"%C", NSF1FunctionKey];
         /* note that we don't support esc here, since it is reserved for leaving fullscreen */
     }
+#ifdef __clang__
 #pragma GCC diagnostic warning "-Wformat"
+#endif
 
     return theString;
 }

modules/gui/macosx/VLCVoutWindowController.m

@@ -66,10 +66,12 @@
 
 - (void)updateWindowsControlsBarWithSelector:(SEL)aSel
 {
-    [o_vout_dict enumerateKeysAndObjectsUsingBlock:^(id key, VLCVideoWindowCommon *o_window, BOOL *stop) {
-        id o_controlsBar = [o_window controlsBar];
-        if (o_controlsBar)
-            [o_controlsBar performSelector:aSel];
+    [o_vout_dict enumerateKeysAndObjectsUsingBlock:^(id key, id obj, BOOL *stop) {
+        if ([obj respondsToSelector:@selector(controlsBar)]) {
+            id o_controlsBar = [obj controlsBar];
+            if (o_controlsBar)
+                [o_controlsBar performSelector:aSel];
+        }
     }];
 }
 
@@ -86,8 +88,9 @@
 
 - (void)updateWindowsUsingBlock:(void (^)(VLCVideoWindowCommon *o_window))windowUpdater
 {
-    [o_vout_dict enumerateKeysAndObjectsUsingBlock:^(id key, VLCVideoWindowCommon *o_window, BOOL *stop) {
-        windowUpdater(o_window);
+    [o_vout_dict enumerateKeysAndObjectsUsingBlock:^(id key, id obj, BOOL *stop) {
+        if ([obj isKindOfClass: [NSWindow class]])
+            windowUpdater(obj);
     }];
 }