Build failure: pkgsCross.xxxx.stow

[fabian-thomas]

Steps To Reproduce

Steps to reproduce the behavior:

1. Build pkgsCross.xxxx.stow. E.g.:

   nix-build -I nixpkgs=channel:nixpkgs-unstable '<nixpkgs>' -A pkgsCross.aarch64-multiplatform.stow

Build log

checking for perl... no
checking for perl5... no
configure: error: Perl not found; check your $PATH.

Additional context

The problem occurs because adding perl to buildInputs does not add it to nativeBuildInputs for cross compilation. I'm not entirely sure if perl is needed to build the derivation, but adding perl to nativeBuildInputs solves the problem:

nativeBuildInputs = [ perl ];
buildInputs = with perlPackages; [ perl IOStringy TestOutput ];

Note that this issue might exist for other packages too.

Related forum post: https://discourse.nixos.org/t/cross-compiling-perl-packages-like-stow-riscv-aarch/39221

Notify maintainers

@sarcasticadmin

Metadata

Please run nix-shell -p nix-info --run "nix-info -m" and paste the result.

 - system: `"x86_64-linux"`
 - host os: `Linux 5.15.0-47-generic, Ubuntu, 22.04.4 LTS (Jammy Jellyfish), nobuild`
 - multi-user?: `yes`
 - sandbox: `yes`
 - version: `nix-env (Nix) 2.19.2`
 - channels(root): `"nixpkgs"`
 - nixpkgs: `/nix/var/nix/profiles/per-user/root/channels/nixpkgs`

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[nixos-discourse]

This issue has been mentioned on NixOS Discourse. There might be relevant details there:

https://discourse.nixos.org/t/cross-compiling-perl-packages-like-stow-riscv-aarch/39221/2

[sarcasticadmin]

Thanks for report this Ill look into it shortly