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See the added comment in all-packages.nix for a more detailed
explanation. This makes the top-level GHC different from
haskellPackages.ghc (which is build->host and used for building the
package set), but more consistent with gcc, gnat etc.
Specifically, pkgsCross.${platform}.buildPackages.ghc will now be a
cross-compiler instead of a native build->build compiler.
Since this change has a slight chance of being disruptive, add a note to
the changelog.
25 lines
1.2 KiB
Markdown
25 lines
1.2 KiB
Markdown
# Release 22.05 (“Quokka”, 2022.05/??) {#sec-release-22.05}
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In addition to numerous new and upgraded packages, this release has the following highlights:
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- Support is planned until the end of December 2022, handing over to 22.11.
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## Highlights {#sec-release-22.05-highlights}
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## New Services {#sec-release-22.05-new-services}
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## Backward Incompatibilities {#sec-release-22.05-incompatibilities}
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* `pkgs.ghc` now refers to `pkgs.targetPackages.haskellPackages.ghc`.
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This *only* makes a difference if you are cross-compiling and will
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ensure that `pkgs.ghc` always runs on the host platform and compiles
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for the target platform (similar to `pkgs.gcc` for example).
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`haskellPackages.ghc` still behaves as before, running on the build
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platform and compiling for the host platform (similar to `stdenv.cc`).
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This means you don't have to adjust your derivations if you use
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`haskellPackages.callPackage`, but when using `pkgs.callPackage` and
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taking `ghc` as an input, you should now use `buildPackages.ghc`
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instead to ensure cross compilation keeps working (or switch to
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`haskellPackages.callPackage`).
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## Other Notable Changes {#sec-release-22.05-notable-changes}
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