mirror of
https://github.com/NixOS/nixpkgs.git
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b2c570ec43
We previously thought that we only need python if we were going to run ./boot or using emscripten which implements all its wrappers in python (and likes to reinvoke them). As it turns out, though, hadrian likes to invoke python itself for generating certain headers of rts using a script shipped with the GHC source. This fact was obscured before, since (presumably) sphinx would propagate python into PATH.
503 lines
19 KiB
Nix
503 lines
19 KiB
Nix
{ version
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, rev ? null
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, sha256
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, url ?
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if rev != null
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then "https://gitlab.haskell.org/ghc/ghc.git"
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else "https://downloads.haskell.org/ghc/${version}/ghc-${version}-src.tar.xz"
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}:
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{ lib
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, stdenv
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, pkgsBuildTarget
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, pkgsHostTarget
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, targetPackages
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# build-tools
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, bootPkgs
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, autoconf
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, automake
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, coreutils
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, fetchpatch
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, fetchurl
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, fetchgit
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, perl
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, python3
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, m4
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, sphinx
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, xattr
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, autoSignDarwinBinariesHook
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, bash
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, libiconv ? null, ncurses
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, glibcLocales ? null
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, # GHC can be built with system libffi or a bundled one.
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libffi ? null
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, useLLVM ? !(stdenv.targetPlatform.isx86
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|| stdenv.targetPlatform.isPower
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|| stdenv.targetPlatform.isSparc
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|| (stdenv.targetPlatform.isAarch64 && stdenv.targetPlatform.isDarwin)
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|| stdenv.targetPlatform.isGhcjs)
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, # LLVM is conceptually a run-time-only depedendency, but for
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# non-x86, we need LLVM to bootstrap later stages, so it becomes a
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# build-time dependency too.
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buildTargetLlvmPackages
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, llvmPackages
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, # If enabled, GHC will be built with the GPL-free but slightly slower native
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# bignum backend instead of the faster but GPLed gmp backend.
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enableNativeBignum ? !(lib.meta.availableOn stdenv.hostPlatform gmp
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&& lib.meta.availableOn stdenv.targetPlatform gmp)
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|| stdenv.targetPlatform.isGhcjs
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, gmp
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, # If enabled, use -fPIC when compiling static libs.
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enableRelocatedStaticLibs ? stdenv.targetPlatform != stdenv.hostPlatform
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# aarch64 outputs otherwise exceed 2GB limit
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, enableProfiledLibs ? !stdenv.targetPlatform.isAarch64
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, # Whether to build dynamic libs for the standard library (on the target
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# platform). Static libs are always built.
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enableShared ? with stdenv.targetPlatform; !isWindows && !useiOSPrebuilt && !isStatic && !isGhcjs
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, # Whether to build terminfo.
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enableTerminfo ? !(stdenv.targetPlatform.isWindows
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|| stdenv.targetPlatform.isGhcjs)
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, # Libdw.c only supports x86_64, i686 and s390x as of 2022-08-04
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enableDwarf ? (stdenv.targetPlatform.isx86 ||
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(stdenv.targetPlatform.isS390 && stdenv.targetPlatform.is64bit)) &&
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lib.meta.availableOn stdenv.hostPlatform elfutils &&
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lib.meta.availableOn stdenv.targetPlatform elfutils &&
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# HACK: elfutils is marked as broken on static platforms
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# which availableOn can't tell.
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!stdenv.targetPlatform.isStatic &&
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!stdenv.hostPlatform.isStatic
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, elfutils
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, # What flavour to build. Flavour string may contain a flavour and flavour
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# transformers as accepted by hadrian.
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ghcFlavour ?
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let
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# TODO(@sternenseemann): does using the static flavour make sense?
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baseFlavour = "release";
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# Note: in case hadrian's flavour transformers cease being expressive
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# enough for us, we'll need to resort to defining a "nixpkgs" flavour
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# in hadrianUserSettings and using that instead.
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transformers =
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lib.optionals useLLVM [ "llvm" ]
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++ lib.optionals (!enableShared) [
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"no_dynamic_libs"
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"no_dynamic_ghc"
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]
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++ lib.optionals (!enableProfiledLibs) [ "no_profiled_libs" ]
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# While split sections are now enabled by default in ghc 8.8 for windows,
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# they seem to lead to `too many sections` errors when building base for
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# profiling.
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++ lib.optionals (!stdenv.targetPlatform.isWindows) [ "split_sections" ]
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;
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in
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baseFlavour + lib.concatMapStrings (t: "+${t}") transformers
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, # Contents of the UserSettings.hs file to use when compiling hadrian.
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hadrianUserSettings ? ''
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module UserSettings (
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userFlavours, userPackages, userDefaultFlavour,
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verboseCommand, buildProgressColour, successColour, finalStage
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) where
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import Flavour.Type
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import Expression
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import {-# SOURCE #-} Settings.Default
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-- no way to set this via the command line
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finalStage :: Stage
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finalStage = ${
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if stdenv.hostPlatform == stdenv.targetPlatform
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then "Stage2" # native compiler
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else "Stage1" # cross compiler
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}
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userDefaultFlavour :: String
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userDefaultFlavour = "release"
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userFlavours :: [Flavour]
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userFlavours = []
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-- Disable Colours
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buildProgressColour :: BuildProgressColour
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buildProgressColour = mkBuildProgressColour (Dull Reset)
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successColour :: SuccessColour
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successColour = mkSuccessColour (Dull Reset)
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-- taken from src/UserSettings.hs unchanged, need to be there
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userPackages :: [Package]
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userPackages = []
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verboseCommand :: Predicate
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verboseCommand = do
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verbosity <- expr getVerbosity
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return $ verbosity >= Verbose
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''
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, # Whether to build sphinx documentation.
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enableDocs ? (
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# Docs disabled for musl and cross because it's a large task to keep
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# all `sphinx` dependencies building in those environments.
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# `sphinx` pulls in among others:
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# Ruby, Python, Perl, Rust, OpenGL, Xorg, gtk, LLVM.
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(stdenv.targetPlatform == stdenv.hostPlatform)
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&& !stdenv.hostPlatform.isMusl
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)
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, # Whether to disable the large address space allocator
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# necessary fix for iOS: https://www.reddit.com/r/haskell/comments/4ttdz1/building_an_osxi386_to_iosarm64_cross_compiler/d5qvd67/
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disableLargeAddressSpace ? stdenv.targetPlatform.isiOS
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}:
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assert !enableNativeBignum -> gmp != null;
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let
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src = (if rev != null then fetchgit else fetchurl) ({
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inherit url sha256;
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} // lib.optionalAttrs (rev != null) {
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inherit rev;
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});
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inherit (stdenv) buildPlatform hostPlatform targetPlatform;
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inherit (bootPkgs) ghc;
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# TODO(@Ericson2314) Make unconditional
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targetPrefix = lib.optionalString
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(targetPlatform != hostPlatform)
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"${targetPlatform.config}-";
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hadrianSettings =
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# -fexternal-dynamic-refs apparently (because it's not clear from the
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# documentation) makes the GHC RTS able to load static libraries, which may
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# be needed for TemplateHaskell. This solution was described in
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# https://www.tweag.io/blog/2020-09-30-bazel-static-haskell
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lib.optionals enableRelocatedStaticLibs [
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"*.*.ghc.*.opts += -fPIC -fexternal-dynamic-refs"
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]
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++ lib.optionals targetPlatform.useAndroidPrebuilt [
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"*.*.ghc.c.opts += -optc-std=gnu99"
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];
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# GHC's build system hadrian built from the GHC-to-build's source tree
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# using our bootstrap GHC.
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hadrian = bootPkgs.callPackage ../../tools/haskell/hadrian {
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ghcSrc = src;
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ghcVersion = version;
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userSettings = hadrianUserSettings;
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};
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# Splicer will pull out correct variations
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libDeps = platform: lib.optional enableTerminfo ncurses
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++ lib.optionals (!targetPlatform.isGhcjs) [libffi]
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# Bindist configure script fails w/o elfutils in linker search path
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# https://gitlab.haskell.org/ghc/ghc/-/issues/22081
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++ lib.optional enableDwarf elfutils
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++ lib.optional (!enableNativeBignum) gmp
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++ lib.optional (platform.libc != "glibc" && !targetPlatform.isWindows && !targetPlatform.isGhcjs) libiconv;
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# TODO(@sternenseemann): is buildTarget LLVM unnecessary?
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# GHC doesn't seem to have {LLC,OPT}_HOST
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toolsForTarget = [
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(if targetPlatform.isGhcjs
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then pkgsBuildTarget.emscripten
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else pkgsBuildTarget.targetPackages.stdenv.cc)
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] ++ lib.optional useLLVM buildTargetLlvmPackages.llvm;
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targetCC = builtins.head toolsForTarget;
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# Sometimes we have to dispatch between the bintools wrapper and the unwrapped
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# derivation for certain tools depending on the platform.
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bintoolsFor = {
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# GHC needs install_name_tool on all darwin platforms. On aarch64-darwin it is
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# part of the bintools wrapper (due to codesigning requirements), but not on
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# x86_64-darwin.
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install_name_tool =
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if stdenv.targetPlatform.isAarch64
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then targetCC.bintools
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else targetCC.bintools.bintools;
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# Same goes for strip.
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strip =
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# TODO(@sternenseemann): also use wrapper if linker == "bfd" or "gold"
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if stdenv.targetPlatform.isAarch64 && stdenv.targetPlatform.isDarwin
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then targetCC.bintools
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else targetCC.bintools.bintools;
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};
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# Use gold either following the default, or to avoid the BFD linker due to some bugs / perf issues.
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# But we cannot avoid BFD when using musl libc due to https://sourceware.org/bugzilla/show_bug.cgi?id=23856
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# see #84670 and #49071 for more background.
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useLdGold = targetPlatform.linker == "gold" ||
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(targetPlatform.linker == "bfd" && (targetCC.bintools.bintools.hasGold or false) && !targetPlatform.isMusl);
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# Makes debugging easier to see which variant is at play in `nix-store -q --tree`.
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variantSuffix = lib.concatStrings [
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(lib.optionalString stdenv.hostPlatform.isMusl "-musl")
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(lib.optionalString enableNativeBignum "-native-bignum")
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];
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in
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# C compiler, bintools and LLVM are used at build time, but will also leak into
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# the resulting GHC's settings file and used at runtime. This means that we are
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# currently only able to build GHC if hostPlatform == buildPlatform.
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assert !targetPlatform.isGhcjs -> targetCC == pkgsHostTarget.targetPackages.stdenv.cc;
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assert buildTargetLlvmPackages.llvm == llvmPackages.llvm;
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assert stdenv.targetPlatform.isDarwin -> buildTargetLlvmPackages.clang == llvmPackages.clang;
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stdenv.mkDerivation ({
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pname = "${targetPrefix}ghc${variantSuffix}";
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inherit version;
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inherit src;
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enableParallelBuilding = true;
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postPatch = ''
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patchShebangs --build .
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'';
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# GHC needs the locale configured during the Haddock phase.
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LANG = "en_US.UTF-8";
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# GHC is a bit confused on its cross terminology.
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# TODO(@sternenseemann): investigate coreutils dependencies and pass absolute paths
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preConfigure = ''
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for env in $(env | grep '^TARGET_' | sed -E 's|\+?=.*||'); do
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export "''${env#TARGET_}=''${!env}"
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done
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# GHC is a bit confused on its cross terminology, as these would normally be
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# the *host* tools.
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export CC="${targetCC}/bin/${targetCC.targetPrefix}cc"
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export CXX="${targetCC}/bin/${targetCC.targetPrefix}c++"
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# Use gold to work around https://sourceware.org/bugzilla/show_bug.cgi?id=16177
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export LD="${targetCC.bintools}/bin/${targetCC.bintools.targetPrefix}ld${lib.optionalString useLdGold ".gold"}"
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export AS="${targetCC.bintools.bintools}/bin/${targetCC.bintools.targetPrefix}as"
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export AR="${targetCC.bintools.bintools}/bin/${targetCC.bintools.targetPrefix}ar"
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export NM="${targetCC.bintools.bintools}/bin/${targetCC.bintools.targetPrefix}nm"
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export RANLIB="${targetCC.bintools.bintools}/bin/${targetCC.bintools.targetPrefix}ranlib"
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export READELF="${targetCC.bintools.bintools}/bin/${targetCC.bintools.targetPrefix}readelf"
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export STRIP="${bintoolsFor.strip}/bin/${bintoolsFor.strip.targetPrefix}strip"
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'' + lib.optionalString (stdenv.targetPlatform.linker == "cctools") ''
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export OTOOL="${targetCC.bintools.bintools}/bin/${targetCC.bintools.targetPrefix}otool"
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export INSTALL_NAME_TOOL="${bintoolsFor.install_name_tool}/bin/${bintoolsFor.install_name_tool.targetPrefix}install_name_tool"
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'' + lib.optionalString useLLVM ''
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export LLC="${lib.getBin buildTargetLlvmPackages.llvm}/bin/llc"
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export OPT="${lib.getBin buildTargetLlvmPackages.llvm}/bin/opt"
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'' + lib.optionalString (useLLVM && stdenv.targetPlatform.isDarwin) ''
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# LLVM backend on Darwin needs clang: https://downloads.haskell.org/~ghc/latest/docs/html/users_guide/codegens.html#llvm-code-generator-fllvm
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export CLANG="${buildTargetLlvmPackages.clang}/bin/${buildTargetLlvmPackages.clang.targetPrefix}clang"
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'' +
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lib.optionalString (stdenv.isLinux && hostPlatform.libc == "glibc") ''
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export LOCALE_ARCHIVE="${glibcLocales}/lib/locale/locale-archive"
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'' + lib.optionalString (!stdenv.isDarwin) ''
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export NIX_LDFLAGS+=" -rpath $out/lib/ghc-${version}"
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'' + lib.optionalString stdenv.isDarwin ''
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export NIX_LDFLAGS+=" -no_dtrace_dof"
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# GHC tries the host xattr /usr/bin/xattr by default which fails since it expects python to be 2.7
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export XATTR=${lib.getBin xattr}/bin/xattr
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''
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# If we are not using release tarballs, some files need to be generated using
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# the boot script.
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+ lib.optionalString (rev != null) ''
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echo ${version} > VERSION
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echo ${rev} > GIT_COMMIT_ID
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./boot
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''
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+ lib.optionalString targetPlatform.useAndroidPrebuilt ''
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sed -i -e '5i ,("armv7a-unknown-linux-androideabi", ("e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64", "cortex-a8", ""))' llvm-targets
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'' + lib.optionalString targetPlatform.isMusl ''
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echo "patching llvm-targets for musl targets..."
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echo "Cloning these existing '*-linux-gnu*' targets:"
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grep linux-gnu llvm-targets | sed 's/^/ /'
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echo "(go go gadget sed)"
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sed -i 's,\(^.*linux-\)gnu\(.*\)$,\0\n\1musl\2,' llvm-targets
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echo "llvm-targets now contains these '*-linux-musl*' targets:"
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grep linux-musl llvm-targets | sed 's/^/ /'
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echo "And now patching to preserve '-musleabi' as done with '-gnueabi'"
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# (aclocal.m4 is actual source, but patch configure as well since we don't re-gen)
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for x in configure aclocal.m4; do
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substituteInPlace $x \
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--replace '*-android*|*-gnueabi*)' \
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'*-android*|*-gnueabi*|*-musleabi*)'
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done
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''
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# Need to make writable EM_CACHE for emscripten
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# https://gitlab.haskell.org/ghc/ghc/-/wikis/javascript-backend#configure-fails-with-sub-word-sized-atomic-operations-not-available
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+ lib.optionalString targetPlatform.isGhcjs ''
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export EM_CACHE="$(mktemp -d emcache.XXXXXXXXXX)"
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cp -Lr ${targetCC /* == emscripten */}/share/emscripten/cache/* "$EM_CACHE/"
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chmod u+rwX -R "$EM_CACHE"
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''
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# Create bash array hadrianFlagsArray for use in buildPhase. Do it in
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# preConfigure, so overrideAttrs can be used to modify it effectively.
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# hadrianSettings are passed via the command line so they are more visible
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# in the build log.
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+ ''
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hadrianFlagsArray=(
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"-j$NIX_BUILD_CORES"
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${lib.escapeShellArgs hadrianSettings}
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)
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'';
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${if targetPlatform.isGhcjs then "configureScript" else null} = "emconfigure ./configure";
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# GHC currently ships an edited config.sub so ghcjs is accepted which we can not rollback
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${if targetPlatform.isGhcjs then "dontUpdateAutotoolsGnuConfigScripts" else null} = true;
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# TODO(@Ericson2314): Always pass "--target" and always prefix.
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configurePlatforms = [ "build" "host" ]
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++ lib.optional (targetPlatform != hostPlatform) "target";
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# `--with` flags for libraries needed for RTS linker
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configureFlags = [
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"--datadir=$doc/share/doc/ghc"
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"--with-curses-includes=${ncurses.dev}/include" "--with-curses-libraries=${ncurses.out}/lib"
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] ++ lib.optionals (libffi != null && !targetPlatform.isGhcjs) [
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"--with-system-libffi"
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"--with-ffi-includes=${targetPackages.libffi.dev}/include"
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"--with-ffi-libraries=${targetPackages.libffi.out}/lib"
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] ++ lib.optionals (targetPlatform == hostPlatform && !enableNativeBignum) [
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"--with-gmp-includes=${targetPackages.gmp.dev}/include"
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"--with-gmp-libraries=${targetPackages.gmp.out}/lib"
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] ++ lib.optionals (targetPlatform == hostPlatform && hostPlatform.libc != "glibc" && !targetPlatform.isWindows) [
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"--with-iconv-includes=${libiconv}/include"
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"--with-iconv-libraries=${libiconv}/lib"
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] ++ lib.optionals (targetPlatform != hostPlatform) [
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"--enable-bootstrap-with-devel-snapshot"
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] ++ lib.optionals useLdGold [
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"CFLAGS=-fuse-ld=gold"
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"CONF_GCC_LINKER_OPTS_STAGE1=-fuse-ld=gold"
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"CONF_GCC_LINKER_OPTS_STAGE2=-fuse-ld=gold"
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] ++ lib.optionals (disableLargeAddressSpace) [
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"--disable-large-address-space"
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] ++ lib.optionals enableDwarf [
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"--enable-dwarf-unwind"
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"--with-libdw-includes=${lib.getDev elfutils}/include"
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"--with-libdw-libraries=${lib.getLib elfutils}/lib"
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];
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# Make sure we never relax`$PATH` and hooks support for compatibility.
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strictDeps = true;
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# Don’t add -liconv to LDFLAGS automatically so that GHC will add it itself.
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dontAddExtraLibs = true;
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nativeBuildInputs = [
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perl ghc hadrian bootPkgs.alex bootPkgs.happy bootPkgs.hscolour
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# autoconf and friends are necessary for hadrian to create the bindist
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autoconf automake m4
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# Python is used in a few scripts invoked by hadrian to generate e.g. rts headers.
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python3
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] ++ lib.optionals (stdenv.isDarwin && stdenv.isAarch64) [
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autoSignDarwinBinariesHook
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] ++ lib.optionals enableDocs [
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sphinx
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];
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# For building runtime libs
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depsBuildTarget = toolsForTarget;
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buildInputs = [ perl bash ] ++ (libDeps hostPlatform);
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depsTargetTarget = map lib.getDev (libDeps targetPlatform);
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depsTargetTargetPropagated = map (lib.getOutput "out") (libDeps targetPlatform);
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hadrianFlags = [
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"--flavour=${ghcFlavour}"
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"--bignum=${if enableNativeBignum then "native" else "gmp"}"
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"--docs=${if enableDocs then "no-sphinx-pdfs" else "no-sphinx"}"
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];
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buildPhase = ''
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runHook preBuild
|
||
|
||
# hadrianFlagsArray is created in preConfigure
|
||
echo "hadrianFlags: $hadrianFlags ''${hadrianFlagsArray[@]}"
|
||
|
||
# We need to go via the bindist for installing
|
||
hadrian $hadrianFlags "''${hadrianFlagsArray[@]}" binary-dist-dir
|
||
|
||
runHook postBuild
|
||
'';
|
||
|
||
# required, because otherwise all symbols from HSffi.o are stripped, and
|
||
# that in turn causes GHCi to abort
|
||
stripDebugFlags = [ "-S" ] ++ lib.optional (!targetPlatform.isDarwin) "--keep-file-symbols";
|
||
|
||
checkTarget = "test";
|
||
|
||
hardeningDisable =
|
||
[ "format" ]
|
||
# In nixpkgs, musl based builds currently enable `pie` hardening by default
|
||
# (see `defaultHardeningFlags` in `make-derivation.nix`).
|
||
# But GHC cannot currently produce outputs that are ready for `-pie` linking.
|
||
# Thus, disable `pie` hardening, otherwise `recompile with -fPIE` errors appear.
|
||
# See:
|
||
# * https://github.com/NixOS/nixpkgs/issues/129247
|
||
# * https://gitlab.haskell.org/ghc/ghc/-/issues/19580
|
||
++ lib.optional stdenv.targetPlatform.isMusl "pie";
|
||
|
||
# big-parallel allows us to build with more than 2 cores on
|
||
# Hydra which already warrants a significant speedup
|
||
requiredSystemFeatures = [ "big-parallel" ];
|
||
|
||
outputs = [ "out" "doc" ];
|
||
|
||
# We need to configure the bindist *again* before installing
|
||
# https://gitlab.haskell.org/ghc/ghc/-/issues/22058
|
||
# TODO(@sternenseemann): it would be nice if the bindist could be an intermediate
|
||
# derivation, but since it is > 2GB even on x86_64-linux, not a good idea?
|
||
preInstall = ''
|
||
pushd _build/bindist/*
|
||
|
||
$configureScript $configureFlags "''${configureFlagsArray[@]}"
|
||
'';
|
||
|
||
postInstall = ''
|
||
# leave bindist directory
|
||
popd
|
||
|
||
# Install the bash completion file.
|
||
install -Dm 644 utils/completion/ghc.bash $out/share/bash-completion/completions/${targetPrefix}ghc
|
||
'';
|
||
|
||
passthru = {
|
||
inherit bootPkgs targetPrefix;
|
||
|
||
inherit llvmPackages;
|
||
inherit enableShared;
|
||
|
||
# Our Cabal compiler name
|
||
haskellCompilerName = "ghc-${version}";
|
||
|
||
# Expose hadrian used for bootstrapping, for debugging purposes
|
||
inherit hadrian;
|
||
};
|
||
|
||
meta = {
|
||
homepage = "http://haskell.org/ghc";
|
||
description = "The Glasgow Haskell Compiler";
|
||
maintainers = with lib.maintainers; [
|
||
guibou
|
||
] ++ lib.teams.haskell.members;
|
||
timeout = 24 * 3600;
|
||
inherit (ghc.meta) license platforms;
|
||
};
|
||
|
||
dontStrip = targetPlatform.useAndroidPrebuilt || targetPlatform.isWasm;
|
||
} // lib.optionalAttrs targetPlatform.useAndroidPrebuilt {
|
||
dontPatchELF = true;
|
||
noAuditTmpdir = true;
|
||
})
|