It's supposed to be just bugfixes. I tested building some projects with
gcc10. Also gfortran10 still builds. I don't expect issues.
This causes basically no rebuilds, as we use 9 by default.
I hate the thing too even though I made it, and rather just get rid of
it. But we can't do that yet. In the meantime, this brings us more
inline with autoconf and will make it slightly easier for me to write a
pkg-config wrapper, which we need.
Everything is copied as-is from 9 (except version and hash).
Some platform-specific patches might not apply anymore;
I'm lazily leaving that for the community to fix.
Vladimír Čunát
Matthew Bauer
John Ericson
Cole Helbling