Re: [boost] CMake minimum version to support

find_dependency doesn't require 3.9, but passing it arbitrary arguments does. Before 3.9 it only accepts a version.

https://cmake.org/cmake/help/v3.5/module/CMakeFindDependencyMacro.html https://cmake.org/cmake/help/v3.9/module/CMakeFindDependencyMacro.html

Your use in Nowide should work on 3.5.

Hm, I remember there was some issue there but can't remember which one it was. While it is possible that I removed those additional args somewhere in the process I'm quite sure there was a real issue. Maybe the version argument was required In 3.5 or something like that. However I think 3.9 is a good minimum anyway, as we have 3.20 now it is also old enough ;)