Silence warning with g++ 4. (Somehow it can't tell that this must exit before the end of the function. I suspect it's the goto.)

stepmania/src/ThemeManager.cpp

@@ -780,6 +780,7 @@ try_element_again:
 			GetThemeDirFromName(SpecialFiles::BASE_THEME_NAME).c_str() );
 	DEFAULT_FAIL( res );
 	}
+	FAIL_M( "" ); // Silence gcc 4.
 }