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