| CMAKE_<LANG>_COMPILER_LAUNCHER |
| ------------------------------ |
| |
| .. versionadded:: 3.17 |
| |
| .. include:: include/ENV_VAR.rst |
| |
| Default compiler launcher to use for the specified language. Will only be used |
| by CMake to initialize the variable on the first configuration. Afterwards, it |
| is available through the cache setting of the variable of the same name. For |
| any configuration run (including the first), the environment variable will be |
| ignored if the :variable:`CMAKE_<LANG>_COMPILER_LAUNCHER` variable is defined. |