| ``CMAKE_REQUIRED_FLAGS`` | |
| A space-separated string of additional flags to pass to the compiler. | |
| A :ref:`semicolon-separated list <CMake Language Lists>` will not work. | |
| The contents of :variable:`CMAKE_<LANG>_FLAGS` and its associated | |
| configuration-specific :variable:`CMAKE_<LANG>_FLAGS_<CONFIG>` variables | |
| are automatically prepended to the compiler command before the contents of | |
| this variable. |