|
|
|
|
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 project command.
|
|
|
|
|
|
|
|
|
|
.. include:: SUPPORTED_LANGUAGES.txt
|
|
|
|
|
|
|
|
|
|
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.
|
