CMAKE_FIND_FRAMEWORK

This variable affects how find_* commands choose between OS X Frameworks and unix-style package components.

On Darwin or systems supporting OS X Frameworks, the CMAKE_FIND_FRAMEWORK variable can be set to empty or one of the following:

FIRST
Try to find frameworks before standard libraries or headers. This is the default on Darwin.
LAST
Try to find frameworks after standard libraries or headers.
ONLY
Only try to find frameworks.
NEVER
Never try to find frameworks.

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Licensed under the BSD 3-clause License.
https://cmake.org/cmake/help/v3.6/variable/CMAKE_FIND_FRAMEWORK.html