| CC | |
| -- | |
| Preferred executable for compiling ``C`` language files. Will only be used by | |
| CMake on the first configuration to determine ``C`` compiler, after which the | |
| value for ``CC`` is stored in the cache as | |
| :variable:`CMAKE_C_COMPILER <CMAKE_<LANG>_COMPILER>`. For any configuration run | |
| (including the first), the environment variable will be ignored if the | |
| :variable:`CMAKE_C_COMPILER <CMAKE_<LANG>_COMPILER>` variable is defined. |