| enable_language |
| --------------- |
| |
| Enable languages (CXX/C/OBJC/OBJCXX/Fortran/etc) |
| |
| .. code-block:: cmake |
| |
| enable_language(<lang>... [OPTIONAL]) |
| |
| Enables support for the named languages 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 :command:`project` command. |
| |
| .. include:: SUPPORTED_LANGUAGES.txt |
| |
| The following restrictions apply to where ``enable_language()`` may be called: |
| |
| * It must be called in file scope, not in a function call. |
| * It must not be called before the first call to :command:`project`. |
| See policy :policy:`CMP0165`. |
| * 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. |
