Luke Granger-Brown
57725ef3ec
git-subtree-dir: third_party/nixpkgs git-subtree-split: 76612b17c0ce71689921ca12d9ffdc9c23ce40b2
107 lines
3.8 KiB
Nix
107 lines
3.8 KiB
Nix
{ lib
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, localSystem, crossSystem, config, overlays, crossOverlays ? []
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}:
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let
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bootStages = import ../. {
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inherit lib localSystem overlays;
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crossSystem = localSystem;
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crossOverlays = [];
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# Ignore custom stdenvs when cross compiling for compatibility
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# Use replaceCrossStdenv instead.
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config = builtins.removeAttrs config [ "replaceStdenv" ];
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};
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in lib.init bootStages ++ [
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# Regular native packages
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(somePrevStage: lib.last bootStages somePrevStage // {
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# It's OK to change the built-time dependencies
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allowCustomOverrides = true;
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})
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# Build tool Packages
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(vanillaPackages: {
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inherit config overlays;
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selfBuild = false;
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stdenv =
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assert vanillaPackages.stdenv.buildPlatform == localSystem;
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assert vanillaPackages.stdenv.hostPlatform == localSystem;
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assert vanillaPackages.stdenv.targetPlatform == localSystem;
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vanillaPackages.stdenv.override { targetPlatform = crossSystem; };
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# It's OK to change the built-time dependencies
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allowCustomOverrides = true;
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})
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# Run Packages
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(buildPackages: let
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adaptStdenv =
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if crossSystem.isStatic
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then buildPackages.stdenvAdapters.makeStatic
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else lib.id;
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stdenvNoCC = adaptStdenv (buildPackages.stdenv.override (old: rec {
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buildPlatform = localSystem;
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hostPlatform = crossSystem;
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targetPlatform = crossSystem;
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# Prior overrides are surely not valid as packages built with this run on
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# a different platform, and so are disabled.
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overrides = _: _: {};
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extraBuildInputs = [ ]; # Old ones run on wrong platform
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allowedRequisites = null;
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cc = null;
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hasCC = false;
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extraNativeBuildInputs = old.extraNativeBuildInputs
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++ lib.optionals
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(hostPlatform.isLinux && !buildPlatform.isLinux)
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[ buildPackages.patchelf ]
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++ lib.optional
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(let f = p: !p.isx86 || builtins.elem p.libc [ "musl" "wasilibc" "relibc" ] || p.isiOS || p.isGenode;
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in f hostPlatform && !(f buildPlatform) )
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buildPackages.updateAutotoolsGnuConfigScriptsHook
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;
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}));
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in {
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inherit config;
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overlays = overlays ++ crossOverlays;
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selfBuild = false;
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inherit stdenvNoCC;
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stdenv = let
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inherit (stdenvNoCC) hostPlatform targetPlatform;
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baseStdenv = stdenvNoCC.override {
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# Old ones run on wrong platform
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extraBuildInputs = lib.optionals hostPlatform.isDarwin [
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buildPackages.targetPackages.apple-sdk
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];
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hasCC = !stdenvNoCC.targetPlatform.isGhcjs;
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cc = if crossSystem.useiOSPrebuilt or false
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then buildPackages.darwin.iosSdkPkgs.clang
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else if crossSystem.useAndroidPrebuilt or false
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then buildPackages."androidndkPkgs_${crossSystem.androidNdkVersion}".clang
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else if targetPlatform.isGhcjs
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# Need to use `throw` so tryEval for splicing works, ugh. Using
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# `null` or skipping the attribute would cause an eval failure
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# `tryEval` wouldn't catch, wrecking accessing previous stages
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# when there is a C compiler and everything should be fine.
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then throw "no C compiler provided for this platform"
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else if crossSystem.isDarwin
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then buildPackages.llvmPackages.libcxxClang
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else if crossSystem.useLLVM or false
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then buildPackages.llvmPackages.clang
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else if crossSystem.useZig or false
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then buildPackages.zig.cc
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else if crossSystem.useArocc or false
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then buildPackages.arocc
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else buildPackages.gcc;
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};
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in if config ? replaceCrossStdenv then config.replaceCrossStdenv { inherit buildPackages baseStdenv; } else baseStdenv;
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})
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]
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