43 lines
1.4 KiB
Nix
43 lines
1.4 KiB
Nix
{ # GHC source tree to build hadrian from
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ghcSrc ? null, ghcVersion ? null
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, mkDerivation, base, bytestring, Cabal, containers, directory
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, extra, filepath, lib, mtl, parsec, shake, text, transformers
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, unordered-containers, cryptohash-sha256, base16-bytestring
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, userSettings ? null
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, writeText
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}:
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if ghcSrc == null || ghcVersion == null
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then throw "hadrian: need to specify ghcSrc and ghcVersion arguments manually"
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else
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mkDerivation {
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pname = "hadrian";
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version = ghcVersion;
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src = ghcSrc;
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postUnpack = ''
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sourceRoot="$sourceRoot/hadrian"
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'';
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# Overwrite UserSettings.hs with a provided custom one
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postPatch = lib.optionalString (userSettings != null) ''
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install -m644 "${writeText "UserSettings.hs" userSettings}" src/UserSettings.hs
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'';
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configureFlags = [
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# avoid QuickCheck dep which needs shared libs / TH
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"-f-selftest"
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# Building hadrian with -O1 takes quite some time with little benefit.
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# Additionally we need to recompile it on every change of UserSettings.hs.
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# See https://gitlab.haskell.org/ghc/ghc/-/merge_requests/1190
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"-O0"
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];
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isLibrary = false;
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isExecutable = true;
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executableHaskellDepends = [
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base bytestring Cabal containers directory extra filepath mtl
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parsec shake text transformers unordered-containers
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] ++ lib.optionals (lib.versionAtLeast ghcVersion "9.7") [
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cryptohash-sha256 base16-bytestring
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];
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description = "GHC build system";
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license = lib.licenses.bsd3;
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}
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