// first define the macro below in .PCH file of your project 
#define MAKE_CATEGORIES_LOADABLE(UNIQUE_NAME) @interface FORCELOAD_##UNIQUE_NAME : NSObject @end @implementation FORCELOAD_##UNIQUE_NAME @end

// call definited macro in you .m category files, out the implementation.
MAKE_CATEGORIES_LOADABLE(MY_UNIQUE_NAME)