nixpkgs/pkgs/stdenv/cross/default.nix
Matthew Bauer a3a6ad7a01 stdenv: implement crossOverlays
crossOverlays only apply to the packages being built, not the build
packages. It is useful when you don’t care what is used to build your
packages, just what is being built. The idea relies heavily on the
cross compiling infrastructure. Using this implies that we need to
create a cross stdenv.
2018-12-04 21:06:46 -06:00

75 lines
2.5 KiB
Nix

{ lib
, localSystem, crossSystem, config, overlays, crossOverlays ? []
}:
let
bootStages = import ../. {
inherit lib localSystem overlays;
crossSystem = localSystem;
crossOverlays = [];
# Ignore custom stdenvs when cross compiling for compatability
config = builtins.removeAttrs config [ "replaceStdenv" ];
};
in lib.init bootStages ++ [
# Regular native packages
(somePrevStage: lib.last bootStages somePrevStage // {
# It's OK to change the built-time dependencies
allowCustomOverrides = true;
})
# Build tool Packages
(vanillaPackages: {
inherit config overlays;
selfBuild = false;
stdenv =
assert vanillaPackages.stdenv.buildPlatform == localSystem;
assert vanillaPackages.stdenv.hostPlatform == localSystem;
assert vanillaPackages.stdenv.targetPlatform == localSystem;
vanillaPackages.stdenv.override { targetPlatform = crossSystem; };
# It's OK to change the built-time dependencies
allowCustomOverrides = true;
})
# Run Packages
(buildPackages: {
inherit config;
overlays = overlays ++ crossOverlays;
selfBuild = false;
stdenv = buildPackages.stdenv.override (old: rec {
buildPlatform = localSystem;
hostPlatform = crossSystem;
targetPlatform = crossSystem;
# Prior overrides are surely not valid as packages built with this run on
# a different platform, and so are disabled.
overrides = _: _: {};
extraBuildInputs = [ ]; # Old ones run on wrong platform
allowedRequisites = null;
cc = if crossSystem.useiOSPrebuilt or false
then buildPackages.darwin.iosSdkPkgs.clang
else if crossSystem.useAndroidPrebuilt or false
then buildPackages.androidenv."androidndkPkgs_${crossSystem.ndkVer}".gcc
else buildPackages.gcc;
extraNativeBuildInputs = old.extraNativeBuildInputs
++ lib.optionals
(hostPlatform.isLinux && !buildPlatform.isLinux)
[ buildPackages.patchelf buildPackages.paxctl ]
++ lib.optional hostPlatform.isDarwin buildPackages.clang
++ lib.optional
(let f = p: !p.isx86 || p.libc == "musl"; in f hostPlatform && !(f buildPlatform))
buildPackages.updateAutotoolsGnuConfigScriptsHook
# without proper `file` command, libtool sometimes fails
# to recognize 64-bit DLLs
++ lib.optional (hostPlatform.config == "x86_64-w64-mingw32") buildPackages.file
;
});
})
]