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nixpkgs/pkgs/stdenv/cross/default.nix

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Nix

{ lib
, localSystem, crossSystem, config, overlays
}:
let
bootStages = import ../. {
inherit lib localSystem overlays;
crossSystem = null;
# Ignore custom stdenvs when cross compiling for compatability
config = builtins.removeAttrs config [ "replaceStdenv" ];
};
in bootStages ++ [
# Build Packages
(vanillaPackages: {
inherit config overlays;
selfBuild = false;
stdenv =
assert vanillaPackages.hostPlatform == localSystem;
assert vanillaPackages.targetPlatform == localSystem;
vanillaPackages.stdenv.override { targetPlatform = crossSystem; };
# It's OK to change the built-time dependencies
allowCustomOverrides = true;
})
# Run Packages
(buildPackages: {
inherit config overlays;
selfBuild = false;
stdenv = buildPackages.makeStdenvCross {
inherit (buildPackages) stdenv;
buildPlatform = localSystem;
hostPlatform = crossSystem;
targetPlatform = crossSystem;
cc = if crossSystem.useiOSCross or false
then buildPackages.darwin.ios-cross
else buildPackages.gcc;
};
})
]