Depends.cmake File Reference

Find additional dependencies. More...

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Detailed Description

Find additional dependencies.

This file is included by basis_project_impl() after it included the BasisProject.cmake file of the project and collected information about its modules. Furthermore, it is included before it looks for the packages specified as arguments to the basis_project() command. At this point, the CMake project is not initialized yet and most BASIS variables are not set.

Use this file to find additional dependencies or dependencies which are only required by a project if certain modules are enabled.

Use case: If this project has a module which is a Slicer Extension and the project itself shall be build as Slicer Extension only if the module is enabled, the Slicer package configuration file has to be included here such that the Slicer settings are imported before any module is configured. This is done by using the command

Another use case would be that you want to specify advanced options to the basis_find_package() function which you cannot specify as part of the dependencies arguments of the basis_project() function.

Example:

if (SlicerExtension_ENABLED)
  # requires Slicer if the SlicerExtension module is enabled
  basis_find_package (Slicer REQUIRED)
  basis_use_package (Slicer)
endif ()

Definition in file Depends.cmake.