| <PROJECT-NAME>_COMPAT_VERSION | |
| ----------------------------- | |
| .. note:: | |
| Experimental. Gated by ``CMAKE_EXPERIMENTAL_EXPORT_PACKAGE_INFO``. | |
| Value given to the ``COMPAT_VERSION`` option of the most recent call to the | |
| :command:`project` command with project name ``<PROJECT-NAME>``, if any. |