CMAKE_WARN_DEPRECATED

Whether to issue warnings for deprecated functionality.

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

When running :manual:cmake(1), this option can be enabled with the :option:-Wdeprecated <cmake -Wdeprecated> option, or disabled with the :option:-Wno-deprecated <cmake -Wno-deprecated> option.