| CMAKE_<LANG>_FLAGS_<CONFIG>_INIT | |
| -------------------------------- | |
| Value used to initialize the :variable:`CMAKE_<LANG>_FLAGS_<CONFIG>` cache | |
| entry the first time a build tree is configured for language ``<LANG>``. | |
| This variable is meant to be set by a :variable:`toolchain file | |
| <CMAKE_TOOLCHAIN_FILE>`. CMake may prepend or append content to | |
| the value based on the environment and target platform. | |
| See also :variable:`CMAKE_<LANG>_FLAGS_INIT`. |