What is the method to entirely disregard BUILD_INTERFACE libraries during the installation process?

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One way to entirely disregard BUILD_INTERFACE libraries during the installation process is to set the INSTALL_INTERFACE property to a different value from the BUILD_INTERFACE property for the target that includes the libraries. This will ensure that when the target is installed, only the INSTALL_INTERFACE libraries will be included.

For example, if the MyLib target includes some libraries that are only needed during the build process, you can set the INSTALL_INTERFACE property to a different value like this:

set_target_properties(MyLib PROPERTIES
  INTERFACE_INCLUDE_DIRECTORIES "${CMAKE_INSTALL_INCLUDEDIR}"
  INTERFACE_LINK_LIBRARIES "${CMAKE_INSTALL_LIBDIR}/MyLibLibraries.lib"
)

set_target_properties(MyLibLibraries PROPERTIES
  BUILD_INTERFACE_INCLUDE_DIRECTORIES "${CMAKE_CURRENT_SOURCE_DIR}/lib"
  INSTALL_INTERFACE_INCLUDE_DIRECTORIES "${CMAKE_INSTALL_INCLUDEDIR}"
  INSTALL_INTERFACE_LINK_LIBRARIES "${CMAKE_INSTALL_LIBDIR}/MyLibLibraries.lib"
)

In this example, the MyLib target links to the MyLibLibraries target, which provides some libraries that are only needed during the build process. The BUILD_INTERFACE properties for MyLibLibraries are set to the source directory (CMAKE_CURRENT_SOURCE_DIR) where the libraries are located. The INSTALL_INTERFACE properties are set to the installation directory (CMAKE_INSTALL_INCLUDEDIR and CMAKE_INSTALL_LIBDIR) where the libraries will be installed.

By setting the INSTALL_INTERFACE properties for MyLibLibraries to different values from the BUILD_INTERFACE properties, the libraries will be completely disregarded during the installation process. Only the INSTALL_INTERFACE libraries will be included in the installation.