| CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT |
| ------------------------------------------- |
| |
| .. versionadded:: 3.7.1 |
| |
| CMake sets this variable to a ``TRUE`` value when the |
| :variable:`CMAKE_INSTALL_PREFIX` has just been initialized to |
| its default value, typically on the first |
| run of CMake within a new build tree and the :envvar:`CMAKE_INSTALL_PREFIX` |
| environment variable is not set on the first run of CMake. This can be used |
| by project code to change the default without overriding a user-provided value: |
| |
| .. code-block:: cmake |
| |
| if(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT) |
| set_property(CACHE CMAKE_INSTALL_PREFIX PROPERTY VALUE "/my/default") |
| endif() |