check clang without xcode on macosx
check clang without xcode on macosx

tboox/xmake,waruqi/xmake,tboox/xmake,tboox/xmake,waruqi/xmake,tboox/xmake,tboox/xmake,waruqi/xmake,waruqi/xmake,tboox/xmake,tboox/xmake,waruqi/xmake,waruqi/xmake,waruqi/xmake