continuation of #109595
pkgconfig was aliased in 2018, however, it remained in
all-packages.nix due to its wide usage. This cleans
up the remaining references to pkgs.pkgsconfig and
moves the entry to aliases.nix.
python3Packages.pkgconfig remained unchanged because
it's the canonical name of the upstream package
on pypi.
There ver very many conflicts, basically all due to
name -> pname+version. Fortunately, almost everything was auto-resolved
by kdiff3, and for now I just fixed up a couple evaluation problems,
as verified by the tarball job. There might be some fallback to these
conflicts, but I believe it should be minimal.
Hydra nixpkgs: ?compare=1538299
This is a follow up of https://github.com/NixOS/nixpkgs/pull/66422
- rename icedtea_web to adoptopenjdk-icedtea-web to reflect the new governance
- add icedtea_web and icedtea8_web to aliases.nix for backwards compatibility
- update the attribute name where icedtea_web is used
