| variable_requires |
| ----------------- |
| |
| Disallowed since version 3.0. See CMake Policy :policy:`CMP0035`. |
| |
| Use the :command:`if` command instead. |
| |
| Assert satisfaction of an option's required variables. |
| |
| .. code-block:: cmake |
| |
| variable_requires(TEST_VARIABLE RESULT_VARIABLE |
| REQUIRED_VARIABLE1 |
| REQUIRED_VARIABLE2 ...) |
| |
| The first argument (``TEST_VARIABLE``) is the name of the variable to be |
| tested, if that variable is false nothing else is done. If |
| ``TEST_VARIABLE`` is true, then the next argument (``RESULT_VARIABLE``) |
| is a variable that is set to true if all the required variables are set. |
| The rest of the arguments are variables that must be true or not set |
| to ``NOTFOUND`` to avoid an error. If any are not true, an error is |
| reported. |
