Change cmake required to v3.13 #1417
Merged
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This is because target_link_options was added in v3.13 So this wouldn't build with cmake v3.12
https://cmake.org/cmake/help/latest/release/3.13.html#commands
Likewise in CMAKE_CXX_STANDARD only supports value of 17 starting with cmake v3.9
So the test wouldn't build properly with cmake v3.6