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|
{ lib, pkgs, ... }:
let
nixpkgsFun = import ../../top-level;
in
lib.recurseIntoAttrs {
platformEquality =
let
configsLocal = [
# crossSystem is implicitly set to localSystem.
{
localSystem = {
system = "x86_64-linux";
};
}
{
localSystem = {
system = "aarch64-linux";
};
crossSystem = null;
}
# Both systems explicitly set to the same string.
{
localSystem = {
system = "x86_64-linux";
};
crossSystem = {
system = "x86_64-linux";
};
}
# Vendor and ABI inferred from system double.
{
localSystem = {
system = "aarch64-linux";
};
crossSystem = {
config = "aarch64-unknown-linux-gnu";
};
}
];
configsCross = [
# GNU is inferred from double, but config explicitly requests musl.
{
localSystem = {
system = "aarch64-linux";
};
crossSystem = {
config = "aarch64-unknown-linux-musl";
};
}
# Cross-compile from AArch64 to x86-64.
{
localSystem = {
system = "aarch64-linux";
};
crossSystem = {
system = "x86_64-unknown-linux-gnu";
};
}
];
pkgsLocal = map nixpkgsFun configsLocal;
pkgsCross = map nixpkgsFun configsCross;
in
assert lib.all (p: p.stdenv.buildPlatform == p.stdenv.hostPlatform) pkgsLocal;
assert lib.all (p: p.stdenv.buildPlatform != p.stdenv.hostPlatform) pkgsCross;
pkgs.emptyFile;
# appendOverlays must preserve splicing so that cross-compilation
# works in NixOS modules (which go through appendOverlays via nixpkgs.nix).
appendOverlaysPreservesSplicing =
let
cross = nixpkgsFun {
localSystem = {
system = "x86_64-linux";
};
crossSystem = {
system = "aarch64-linux";
};
};
appended = cross.appendOverlays [ ];
in
assert cross.makeWrapper ? __spliced;
assert appended.makeWrapper ? __spliced;
pkgs.emptyFile;
}
|
