CMAKE_PROJECT_<PROJECT-NAME>_INCLUDE_BEFORE
-------------------------------------------

.. versionadded:: 3.17

A CMake language file or module to be included as the first step of any
:command:`project` command calls that specify ``<PROJECT-NAME>`` as the project
name.  This is intended for injecting custom code into project builds without
modifying their source.  See :ref:`Code Injection` for a more detailed
discussion of files potentially included during a :command:`project` call.

See also the :variable:`CMAKE_PROJECT_<PROJECT-NAME>_INCLUDE`,
:variable:`CMAKE_PROJECT_INCLUDE`, :variable:`CMAKE_PROJECT_INCLUDE_BEFORE`,
and :variable:`CMAKE_PROJECT_TOP_LEVEL_INCLUDES` variables.