Merge pull request haskell#9217 from BinderDavid/remove-duplicate-doc…

…umentation

Deduplicate documentation of cabal commands

Finally, 3.4

Cabal 3.4 (bundled with GHC-9.0)

The bundled version is the previous commit,
the difference is only in a changelog.

other-extensions are always recognized

other-extensions are always recognized

Small tweaks to increase compatibility

- Add -Wno-missing-safe-haskell-mode to Paths_pkg.hs
- Use alex-3.2.6 for Lexer generation

checks for paths

Release for GHC-8.10.3

- Pass cxx-options with -optcxx for GHC >= 8.10
- Use process jobs when calling subprocesses
- Require custom-setup for cabal-version: 1.24 and later
- Accept linux-androideabi as an alias for Android
- Fix ghci being launched before other sources are built
- Require cabal-versions >=1.25 to be exact

Release for GHC-8.10.3

- Pass cxx-options with -optcxx for GHC >= 8.10
- Use process jobs when calling subprocesses
- Require custom-setup for cabal-version: 1.24 and later
- Accept linux-androideabi as an alias for Android
- Fix ghci being launched before other sources are built
- Require cabal-versions >=1.25 to be exact

Fourth candidate

- Pass -optcxx for GHC >= 8.10
  haskell#6421
  haskell#7072
- Require custom-setup for cabal-version: 1.24 and later
  haskell#7091
- Allow Win32-2.10.0.0
  haskell#7085
- Remove v2-build beta note from --help
  haskell#7090
- Fix command notes being replaced by descriptions
  haskell#7089
- documentation: Nix style local builds have become the default
  haskell#7097
- Provide slightly more information when there are multiple occurences of same package
  haskell#7078