> #if PLATFORM(MAC) && COMPILER_SUPPORTS(BLOCKS) > #include <objc/objc-runtime.h> > #endif > > Where are the platform (and everything else) defined for compilation? You should really leverage 'git grep'. A simple: git grep 'define PLATFORM' points me to Source/JavaScriptCore/wtf/Platform.h. -- Ariya Hidayat, http://ariya.ofilabs.com