- v2-update is preferred (i.e. `v2-` prefix)
- but it's actually broken, due still existing `cabal-install` bug in
  non-append repository updates
- Also add explicit link to haskell.gitlab.com

Patch libraries to work with GHC 8.9

See merge request ghc/head.hackage!8

Add sop-core-0.5.0.0 patch

See merge request ghc/head.hackage!7

nix: Rip out brokenPackages

See merge request ghc/head.hackage!6

Test all packages with patches

See merge request ghc/head.hackage!5

This fixes the bindist versioning logic.

Otherwise the ret variable isn't captured in the parent environment.

From streaming commit a59174400842f6446eefd4b83e1951696ecdf4e1

Allow additional arguments to be passed to GHC

See merge request ghc/head.hackage!4

Nix-based CI

See merge request ghc/head.hackage!2

Ryan Scott authored 6 years ago and Herbert Valerio Riedel committed 6 years ago

`ghc-paths`' custom `Setup` script uses `rawSystemProgramStdoutConf`,
which was removed in `Cabal-3.0.*` in favor of `getDbProgramOutput`.

Ryan Scott authored 6 years ago and Herbert Valerio Riedel committed 6 years ago

`happy-1.19.11` adapts to `MonadFail`-related changes in
`base-4.13.*`, but alas, its custom `Setup` script must also be
tweaked to adapt to the removal of `rawSystemProgramConf` in
`Cabal-3.0.*`.