| SWIFTC |
| ------ |
| |
| .. versionadded:: 3.15 |
| |
| .. include:: ENV_VAR.txt |
| |
| Preferred executable for compiling ``Swift`` language files. Will only be used by |
| CMake on the first configuration to determine ``Swift`` compiler, after which the |
| value for ``SWIFTC`` is stored in the cache as |
| :variable:`CMAKE_Swift_COMPILER <CMAKE_<LANG>_COMPILER>`. For any configuration run |
| (including the first), the environment variable will be ignored if the |
| :variable:`CMAKE_Swift_COMPILER <CMAKE_<LANG>_COMPILER>` variable is defined. |
| |
| .. note:: |
| Options that are required to make the compiler work correctly can be included; |
| they can not be changed. |
| |
| .. code-block:: console |
| |
| $ export SWIFTC="custom-compiler --arg1 --arg2" |
