depot/third_party/nixpkgs/pkgs/development/compilers/rust/cargo_cross.nix

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{ runCommand, stdenv, lib, pkgsBuildBuild, makeShellWrapper, rustc, ... }:
runCommand "${stdenv.targetPlatform.config}-cargo-${lib.getVersion pkgsBuildBuild.cargo}" {
# Use depsBuildBuild or it tries to use target-runtimeShell
depsBuildBuild = [ makeShellWrapper ];
inherit (pkgsBuildBuild.cargo) meta;
} ''
mkdir -p $out/bin
ln -s ${pkgsBuildBuild.cargo}/share $out/share
makeWrapper "${pkgsBuildBuild.cargo}/bin/cargo" "$out/bin/cargo" \
--prefix PATH : "${rustc}/bin"
''