CPACK_PACKAGE_CONTACT is not documented
The variable is only mentioned in the debian generator page, but isn't documented anywhere else: https://cmake.org/cmake/help/latest/search.html?q=CPACK_PACKAGE_CONTACT
The variable is only mentioned in the debian generator page, but isn't documented anywhere else: https://cmake.org/cmake/help/latest/search.html?q=CPACK_PACKAGE_CONTACT