| CMAKE_XCODE_BUILD_SYSTEM |
| ------------------------ |
| |
| .. versionadded:: 3.19 |
| |
| Xcode build system selection. |
| |
| The :generator:`Xcode` generator defines this variable to indicate which |
| variant of the Xcode build system will be used. The value is the |
| version of Xcode in which the corresponding build system first became |
| mature enough for use by CMake. The possible values are: |
| |
| ``1`` |
| The original Xcode build system. |
| This is the default when using Xcode 11.x or below and supported |
| up to Xcode 13.x. |
| |
| ``12`` |
| The Xcode "new build system" introduced by Xcode 10. |
| It became mature enough for use by CMake in Xcode 12. |
| This is the default when using Xcode 12.x or above. |
| |
| The ``CMAKE_XCODE_BUILD_SYSTEM`` variable is informational and should not |
| be modified by project code. See the :ref:`Xcode Build System Selection` |
| documentation section to select the Xcode build system. |
