cmake / 3.12.4 / envvar / macosx_deployment_target.html /

MACOSX_DEPLOYMENT_TARGET

Specify the minimum version of OS X on which the target binaries are to be deployed.

The MACOSX_DEPLOYMENT_TARGET environment variable sets the default value for the CMAKE_OSX_DEPLOYMENT_TARGET variable.

© 2000–2019 Kitware, Inc. and Contributors
Licensed under the BSD 3-clause License.
https://cmake.org/cmake/help/v3.12/envvar/MACOSX_DEPLOYMENT_TARGET.html