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Enable CMake policy CMP0077 #2222

Merged
merged 1 commit into from
Jun 27, 2020
Merged

Enable CMake policy CMP0077 #2222

merged 1 commit into from
Jun 27, 2020

Commits on Jun 26, 2020

  1. Enable CMake policy CMP0077 

    Projects that import json via [FetchContent](https://cmake.org/cmake/help/latest/module/FetchContent.html) or `add_subdirectory` pointed at a git submodule may want to set `JSON_BuildTests` to "NO". However, this doesn't work without creating an identical `option()` in the importing project. Enabling CMP0077 in supported versions of CMake changes the behavior of `option()` to allow importing projects to set default values for the variables without touching the cache.

See the documentation for CMP0077 here: https://cmake.org/cmake/help/latest/policy/CMP0077.html
    @alexreinking
    alexreinking committed Jun 26, 2020
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