mirror of
https://github.com/NixOS/nixpkgs.git
synced 2024-12-26 23:54:01 +00:00
6454fb1bc0
The switch to cctools-llvm made several LLVM tools the default on Darwin, which includes llvm-ar. GHC will try to use `-L` with `ar` when it is `llvm-ar`, but that doesn’t work currently on Darwin. See https://gitlab.haskell.org/ghc/ghc/-/issues/23188.
509 lines
20 KiB
Nix
509 lines
20 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 dependency, 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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, ghcSrc ? (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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# 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 = ghcSrc;
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ghcVersion = version;
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userSettings = hadrianUserSettings;
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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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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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# 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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src = ghcSrc;
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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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] ++ lib.optionals targetPlatform.isDarwin [
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# Darwin uses llvm-ar. GHC will try to use `-L` with `ar` when it is `llvm-ar`
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# but it doesn’t currently work because Cabal never uses `-L` on Darwin. See:
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# https://gitlab.haskell.org/ghc/ghc/-/issues/23188
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# https://github.com/haskell/cabal/issues/8882
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"fp_cv_prog_ar_supports_dash_l=no"
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];
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# Make sure we never relax`$PATH` and hooks support for compatibility.
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strictDeps = true;
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# Don’t add -liconv to LDFLAGS automatically so that GHC will add it itself.
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dontAddExtraLibs = true;
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nativeBuildInputs = [
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perl ghc hadrian bootPkgs.alex bootPkgs.happy bootPkgs.hscolour
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# autoconf and friends are necessary for hadrian to create the bindist
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autoconf automake m4
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# Python is used in a few scripts invoked by hadrian to generate e.g. rts headers.
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python3
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] ++ lib.optionals (stdenv.isDarwin && stdenv.isAarch64) [
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autoSignDarwinBinariesHook
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] ++ lib.optionals enableDocs [
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sphinx
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];
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# For building runtime libs
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depsBuildTarget = toolsForTarget;
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buildInputs = [ perl bash ] ++ (libDeps hostPlatform);
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depsTargetTarget = map lib.getDev (libDeps targetPlatform);
|
||
depsTargetTargetPropagated = map (lib.getOutput "out") (libDeps targetPlatform);
|
||
|
||
hadrianFlags = [
|
||
"--flavour=${ghcFlavour}"
|
||
"--bignum=${if enableNativeBignum then "native" else "gmp"}"
|
||
"--docs=${if enableDocs then "no-sphinx-pdfs" else "no-sphinx"}"
|
||
];
|
||
|
||
buildPhase = ''
|
||
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;
|
||
})
|