CMAKE_ERROR_DEPRECATED

Whether to issue errors for deprecated functionality.

If TRUE, use of deprecated functionality will issue fatal errors. If this variable is not set, CMake behaves as if it were set to FALSE.

© 2000–2016 Kitware, Inc.
© 2000–2011 Insight Software Consortium
Licensed under the BSD 3-clause License.
https://cmake.org/cmake/help/v3.5/variable/CMAKE_ERROR_DEPRECATED.html