OBJC ---- .. include:: ENV_VAR.txt Preferred executable for compiling ``OBJC`` language files. Will only be used by CMake on the first configuration to determine ``OBJC`` compiler, after which the value for ``OBJC`` is stored in the cache as :variable:`CMAKE_OBJC_COMPILER _COMPILER>`. For any configuration run (including the first), the environment variable will be ignored if the :variable:`CMAKE_OBJC_COMPILER _COMPILER>` variable is defined. If ``OBJC`` is not defined, the :envvar:`CC` environment variable will be checked instead.