option | |
------ | |
Provide an option that the user can optionally select. | |
.. code-block:: cmake | |
option(<variable> "<help_text>" [value]) | |
Provides an option for the user to select as ``ON`` or ``OFF``. | |
If no initial ``<value>`` is provided, ``OFF`` is used. | |
If ``<variable>`` is already set as a normal or cache variable, | |
then the command does nothing (see policy :policy:`CMP0077`). | |
If you have options that depend on the values of other options, see | |
the module help for :module:`CMakeDependentOption`. |