PiranhaObjC : Can I use it in the enable modules project ?

I tried to use PiranhaObjC in the enable modules project, but I got an error:
 `error: use of '@import' when modules are disabled`
 then I add clang command-line parameters `-fmodules`, but I got an another error:
 `fatal error: module 'module_name' not found`
 
I don't know if I can use it in the enable modules project , please tell me more details. 