Hello,
I am trying to advance this to bootstrap properly Erlang: fix cross compilation by DianaOlympos · Pull Request #100835 · NixOS/nixpkgs · GitHub
Erlang need a bootstrap version of erlang, on the Build
architecture, to properly cross compile. Hence the buildPackages.erlang_nox
i add to nativeBuildInputs
. The problem is that technically erlang want you to bootstrap with the same version of OTP.
I thought, good enough. I added a bootstrapped builder as can be seen here https://github.com/DianaOlympos/nixpkgs/commit/80350a1336a1ddc4da567d3b0e7a8cd1e9536078 and i inject it.
Except now, this is what i get when i try to cross compile
> nix-build -A erlang_nox --arg crossSystem '{ config = "aarch64-unknown-linux-gnu"; platform = (import <nixpkgs/lib>).systems.platforms.aarch64-multiplatform; }' ./default.nix
these derivations will be built:
/nix/store/d7qy8qydlf6kbjm3h2cbsjs1c3in52rq-erlang-22.3-bootstrap-aarch64-unknown-linux-gnu.drv
/nix/store/cifidx50ibxaf6flx15vi8xk021jlrz4-erlang-22.3-aarch64-unknown-linux-gnu.drv
Which is definitely not what i want. I want the bootstrapping version of OTP to be built on the Build
platform, not the Host
one. Anyone has an idea of how i can fix that ? i have no idea anymore.