https://www.ponylang.io/blog/2019/03/0.28.0-released/

…lays

Consider example:

$ nix-instantiate ./nixos -A system --arg configuration '
    {
      boot.isContainer = true;
      nixpkgs.overlays = [ (self: super: {
        nix = self.pkgsStatic.nix;
      }) ];
    }'

When resolving package through overlays, we figure out that

  nix == self.pkgsStatic.nix
  =>
  nix == (import <nixpkgs> { inherit overlays; }).nix
  =>
  nix == (import <nixpkgs> { overlays = [(self: super: { nix = self.pkgsStatic.nix; })];}).nix

and we enter infinite recursion of nixpkgs evaluations.

The proper fix should terminate recursion by assigning self fixpoint
to inner custom package set. But I get infinite recursion somehow, so
I use `super`. It is less correct modulo deep custom overrides, but behaves
correctly for simple cases and doesn't OOM evaluator.

Fixes NixOS/nixpkgs#57984

ghcjs-ng: unbreak

…Sets

pkgsMusl, pkgsi686Linux, pkgsStatic: fix infinite recursion with overlays

tdesktopPackages.preview: 1.6.2 -> 1.6.3

ponyc: 0.27.0 -> 0.28.0

The versions 13.8.0 and 13.9.{0,1} will be EOLed before the end of 19.03
and should be dropped.

To provide an easy upgrade path, all unsupported versions will throw an
evaluation error. All versions that are about the be EOLed can be added
there as well.

For now, all of those deprecated versions are still referenced in
`all-packages.nix`, but should be removed before the next release.

See also https://www.citrix.co.uk/support/product-lifecycle/milestones/receiver.html

lazygit: 0.5 -> 0.7.2