INSTALL_PARALLEL ---------------- .. versionadded:: 3.30 Enables parallel installation option for a project. The install code for each subdirectory added with ``add_subdirectory`` can run independently. When using the :ref:`Ninja Generators`, enabling this property causes ``install/local`` targets have the console pool disabled, allowing them to run concurrently. This property also provides the target ``install/parallel``, which has an explicit dependency on the ``install/local`` target for each subdirectory. .. versionadded:: 3.31 When this property is enabled, ``cmake --install`` can be given the ``-j <jobs>`` or ``--parallel <jobs>`` option to specify a maximum number of jobs. The :envvar:`CMAKE_INSTALL_PARALLEL_LEVEL` environment variable specifies a default parallel level if this option is not provided. Calls to :command:`install(CODE)` or :command:`install(SCRIPT)` might depend on actions performed by an earlier :command:`install` command in a different directory such as files installed or variable settings. If the project has such order-dependent installation logic, parallel installation should not be enabled, in order to prevent possible race conditions.
