Conditionally compile clang pragmas

include/internal/catch_impl.hpp

@@ -9,8 +9,10 @@
 // Collect all the implementation files together here
 // These are the equivalent of what would usually be cpp files
 
+#ifdef __clang__
 #pragma clang diagnostic push
 #pragma clang diagnostic ignored "-Wweak-vtables"
+#endif
 
 #include "catch_runner.hpp"
 #include "catch_registry_hub.hpp"
@@ -52,4 +54,6 @@ namespace Catch {
 
 }
 
+#ifdef __clang__
 #pragma clang diagnostic pop
+#endif

include/internal/catch_objc_arc.hpp

@@ -33,11 +33,15 @@ inline id performOptionalSelector( id obj, SEL sel ) {
 #else
 inline void arcSafeRelease( NSObject* ){}
 inline id performOptionalSelector( id obj, SEL sel ) {
+#ifdef __clang__
 #pragma clang diagnostic push
 #pragma clang diagnostic ignored "-Warc-performSelector-leaks"
+#endif
     if( [obj respondsToSelector: sel] )
         return [obj performSelector: sel];
+#ifdef __clang__
 #pragma clang diagnostic pop
+#endif
     return nil;
 }
 #define CATCH_UNSAFE_UNRETAINED __unsafe_unretained