[Nix-dev] Will Haskell-ng and hackage2nix allow building *any* versions of deps?

[Peter Simons]

Hi Cody,

 > haskellngPackages doesn't seem to have all versions of all dependencies...

I'm not sure what you mean by "all versions of all dependencies". Dependencies
of what exactly? The way I understand the term, "dependency" has meaning only
as a relationship between two packages, i.e. "transformers" is a dependency of
"mtl". I'm not sure how to apply that interpretation to your question?

If you're asking why hackage-packages.nix doesn't contain every single version
of every package registered on Hackage, then the answer is because that would
be a database containing well over 50,000 packages, the vast majority of which
no-one will ever care about (nor will they ever compile). So it seems pointless
to distribute all that stuff as part of Nixpkgs.

Best regards,
Peter