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Use internal-nix-tools for hpack #816

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Merged
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Aug 12, 2020
Merged

Use internal-nix-tools for hpack #816

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9 changes: 6 additions & 3 deletions builder/comp-builder.nix
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Original file line number Diff line number Diff line change
Expand Up @@ -174,9 +174,12 @@ let

prePatch = if (cabalFile != null)
then ''cat ${cabalFile} > ${package.identifier.name}.cabal''
else lib.optionalString (cabal-generator == "hpack") ''
${buildPackages.haskell-nix.nix-tools.${compiler.nix-name}}/bin/hpack
'';
else
# When building hpack package we use the internal nix-tools
# (compiled with a fixed GHC version)
lib.optionalString (cabal-generator == "hpack") ''
${buildPackages.haskell-nix.internal-nix-tools}/bin/hpack
'';
}
# patches can (if they like) depend on the version and revision of the package.
// lib.optionalAttrs (patches != []) {
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