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Merge pull request #77298 from nomeata/haskell-docs-version

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nixpkgs manual: Update Haskell versions
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Domen Kožar 2020-01-09 14:35:06 +01:00 committed by GitHub
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29
doc/languages-frameworks/haskell.section.md
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@ -84,37 +84,36 @@ nix-env -qaP -A nixos.haskellPackages
nix-env -iA nixos.haskellPackages.cabal-install
```
Our current default compiler is GHC 7.10.x and the `haskellPackages` set
contains packages built with that particular version. Nixpkgs contains the
latest major release of every GHC since 6.10.4, however, and there is a whole
family of package sets available that defines Hackage packages built with each
of those compilers, too:
Our current default compiler is GHC 8.6.x and the `haskellPackages` set
contains packages built with that particular version. Nixpkgs contains the last
three major releases of GHC and there is a whole family of package sets
available that defines Hackage packages built with each of those compilers,
too:
```shell
nix-env -f "<nixpkgs>" -qaP -A haskell.packages.ghc6123
nix-env -f "<nixpkgs>" -qaP -A haskell.packages.ghc763
nix-env -f "<nixpkgs>" -qaP -A haskell.packages.ghc844
nix-env -f "<nixpkgs>" -qaP -A haskell.packages.ghc882
```
The name `haskellPackages` is really just a synonym for
`haskell.packages.ghc7102`, because we prefer that package set internally and
`haskell.packages.ghc865`, because we prefer that package set internally and
recommend it to our users as their default choice, but ultimately you are free
to compile your Haskell packages with any GHC version you please. The following
command displays the complete list of available compilers:
```
$ nix-env -f "<nixpkgs>" -qaP -A haskell.compiler
haskell.compiler.ghc822 ghc-8.2.2
haskell.compiler.integer-simple.ghc822 ghc-8.2.2
haskell.compiler.ghc8101 ghc-8.10.0.20191210
haskell.compiler.integer-simple.ghc8101 ghc-8.10.0.20191210
haskell.compiler.ghcHEAD ghc-8.10.20191119
haskell.compiler.integer-simple.ghcHEAD ghc-8.10.20191119
haskell.compiler.ghc822Binary ghc-8.2.2-binary
haskell.compiler.ghc844 ghc-8.4.4
haskell.compiler.ghc863Binary ghc-8.6.3-binary
haskell.compiler.ghc864 ghc-8.6.4
haskell.compiler.integer-simple.ghc864 ghc-8.6.4
haskell.compiler.ghc865 ghc-8.6.5
haskell.compiler.integer-simple.ghc865 ghc-8.6.5
haskell.compiler.ghc881 ghc-8.8.1
haskell.compiler.integer-simple.ghc881 ghc-8.8.1
haskell.compiler.ghcHEAD ghc-8.9.20190601
haskell.compiler.integer-simple.ghcHEAD ghc-8.9.20190601
haskell.compiler.ghcjs84 ghcjs-8.4.0.1
haskell.compiler.ghc882 ghc-8.8.1.20191211
haskell.compiler.integer-simple.ghc882 ghc-8.8.1.20191211
haskell.compiler.ghcjs ghcjs-8.6.0.1
```

2
pkgs/top-level/all-packages.nix
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@ -8160,6 +8160,8 @@ in
haskell = callPackage ./haskell-packages.nix { };
# Please update doc/languages-frameworks/haskell.section.md, “Our
# current default compiler is”, if you bump this:
haskellPackages = dontRecurseIntoAttrs haskell.packages.ghc865;
inherit (haskellPackages) ghc;