CMAKE_FIND_PACKAGE_NO_SYSTEM_PACKAGE_REGISTRY
CMAKE_FIND_PACKAGE_NO_SYSTEM_PACKAGE_REGISTRY
Skip System Package Registry in find_package() calls.
In some cases, it is not desirable to use the System Package Registry when searching for packages. If the CMAKE_FIND_PACKAGE_NO_SYSTEM_PACKAGE_REGISTRY variable is enabled, all the find_package() commands will skip the System Package Registry as if they were called with the NO_CMAKE_SYSTEM_PACKAGE_REGISTRY argument.
See also Disabling the Package Registry.
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Licensed under the BSD 3-clause License.
https://cmake.org/cmake/help/v3.8/variable/CMAKE_FIND_PACKAGE_NO_SYSTEM_PACKAGE_REGISTRY.html
