CMAKE_OSX_ARCHITECTURES
This is a CMake Environment Variable. Its initial value is taken from the calling process environment.
Target specific architectures for macOS.
The CMAKE_OSX_ARCHITECTURES environment variable sets the default value for the CMAKE_OSX_ARCHITECTURES variable. See OSX_ARCHITECTURES for more information.
© 2000–2020 Kitware, Inc. and Contributors
Licensed under the BSD 3-clause License.
https://cmake.org/cmake/help/v3.17/envvar/CMAKE_OSX_ARCHITECTURES.html