| CMAKE_<LANG>_COMPILER_LAUNCHER | |
| ------------------------------ | |
| .. include:: ENV_VAR.txt | |
| 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. |