| enable_language | |
| --------------- | |
| Enable a language (CXX/C/OBJC/OBJCXX/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``, ``OBJC``, ``OBJCXX``, ``Fortran``, | |
| ``HIP``, ``ISPC``, and ``ASM``. | |
| .. versionadded:: 3.8 | |
| Added ``CUDA`` support. | |
| .. versionadded:: 3.16 | |
| Added ``OBJC`` and ``OBJCXX`` support. | |
| .. versionadded:: 3.18 | |
| Added ``ISPC`` support. | |
| .. versionadded:: 3.21 | |
| Added ``HIP`` support. | |
| 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. |