| CXX_SCAN_FOR_MODULES |
| -------------------- |
| |
| .. versionadded:: 3.28 |
| |
| ``CXX_SCAN_FOR_MODULES`` is a boolean specifying whether CMake will scan the |
| source for C++ module dependencies. See also the |
| :prop_tgt:`CXX_SCAN_FOR_MODULES` for target-wide settings. |
| |
| When this property is set ``ON``, CMake will scan the source at build time and |
| add module dependency information to the compile line as necessary. When this |
| property is set ``OFF``, CMake will not scan the source at build time. When |
| this property is unset, the :prop_tgt:`CXX_SCAN_FOR_MODULES` property is |
| consulted. |
| |
| Note that scanning is only performed if C++20 or higher is enabled for the |
| target and the source uses the ``CXX`` language. Scanning for modules in |
| sources belonging to file sets of type ``CXX_MODULES`` is always performed. |
