| enable_language |
| --------------- |
| |
| Enable a language (CXX/C/Fortran/etc) |
| |
| .. code-block:: cmake |
| |
| enable_language(<lang> [OPTIONAL] ) |
| |
| Enables support for the named language in CMake. This is |
| the same as the :command:`project` command but does not create any of the extra |
| variables that are created by the project command. Example languages |
| are ``CXX``, ``C``, ``CUDA``, ``Fortran``, and ``ASM``. |
| |
| If enabling ``ASM``, enable it last so that CMake can check whether |
| compilers for other languages like ``C`` work for assembly too. |
| |
| This command must be called in file scope, not in a function call. |
| Furthermore, it must be called in the highest directory common to all |
| targets using the named language directly for compiling sources or |
| indirectly through link dependencies. It is simplest to enable all |
| needed languages in the top-level directory of a project. |
| |
| The ``OPTIONAL`` keyword is a placeholder for future implementation and |
| does not currently work. Instead you can use the :module:`CheckLanguage` |
| module to verify support before enabling. |
