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{ # GHC source tree to build hadrian from
ghcSrc ? null, ghcVersion ? null
, mkDerivation, base, bytestring, Cabal, containers, directory
, extra, filepath, lib, mtl, parsec, shake, text, transformers
, unordered-containers, cryptohash-sha256, base16-bytestring
, userSettings ? null
# Whether to pass --hyperlinked-source to haddock or not. This is a custom
# workaround as we wait for this to be configurable via userSettings or similar.
# https://gitlab.haskell.org/ghc/ghc/-/issues/23625
, enableHyperlinkedSource ? true
, writeText
}:
if ghcSrc == null || ghcVersion == null
then throw "hadrian: need to specify ghcSrc and ghcVersion arguments manually"
else
mkDerivation {
pname = "hadrian";
version = ghcVersion;
src = ghcSrc;
postUnpack = ''
sourceRoot="$sourceRoot/hadrian"
'';
patches = lib.optionals (!enableHyperlinkedSource) [
./disable-hyperlinked-source.patch
];
# Overwrite UserSettings.hs with a provided custom one
postPatch = lib.optionalString (userSettings != null) ''
install -m644 "${writeText "UserSettings.hs" userSettings}" src/UserSettings.hs
'';
configureFlags = [
# avoid QuickCheck dep which needs shared libs / TH
"-f-selftest"
# Building hadrian with -O1 takes quite some time with little benefit.
# Additionally we need to recompile it on every change of UserSettings.hs.
# See https://gitlab.haskell.org/ghc/ghc/-/merge_requests/1190
"-O0"
];
isLibrary = false;
isExecutable = true;
executableHaskellDepends = [
base bytestring Cabal containers directory extra filepath mtl
parsec shake text transformers unordered-containers
] ++ lib.optionals (lib.versionAtLeast ghcVersion "9.7") [
cryptohash-sha256 base16-bytestring
];
description = "GHC build system";
license = lib.licenses.bsd3;
}
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