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.
Added gtkspell
Added pidgin, builds but does not run yet:
running pidgin fails to find libX11.so.6. ldd on pidgin reports:
libX11.so.6 => not found
....
libX11.so.6 => /nix/store/brsva6rh1p2ymjvk7054a90is5panrhf-libX11-1.1.1/lib/libX11.so.6 (0xb7358000)
which looks a bit weird ... Maybe some problem with patchelf? Or just
a build problem and should the library path be set using an
environment variable?
svn path=/nixpkgs/trunk/; revision=8660
