New review comment by ericonr on void-packages repository

https://github.com/void-linux/void-packages/pull/39154#discussion_r965452708

Comment:
I don't want to fix this with a define in CXXFLAGS because it requires fixing in all packages that use the library, instead of a single fix in the library.

If I manage to rework the patch to look like the posix version is the one being kept or add a comment making that clear and that it's because, as a distro, we know where these headers are being used, would it be okay for you?