Gnupg broken in cross compiling to Arm-v7 32 bit

Help
1

I’m trying to build a simple binary using an ancient Android library / development SDK from what used to be IVONA text-to-speech before it was bought out by Amazon and I’ve run into a couple of issues. For one, I loaded nixpkgs in nix repl to see what platforms pkgsCross supported and I saw that there was arm-android-prebuilt but when I use this for crossSystem I get an error that says:

       error: Target specification with 3 components is ambiguous

So I switched to using armv7l-hf-multiplatform and Im not sure why I cant use arm android.

Second, everytime I try to create a nix-shell for this environment it fails to build at gnupg due to missing npth. Luckily there exists a similar issue here why-does-nixos-rebuild-want-me-to-install-a-library and this user has created a PR that supposedly would fix this issue and it should be in nixos-unstable (which I am on) comment with links but I cannot get this to build regardless of that.

Is there any way that I can make use of this fix or just skip gnupg altogether? Here is my shell.nix file:

with import <nixpkgs>
{
  localSystem.config = "x86_64-unknown-linux-gnu";
  # crossSystem.config = "armv7l-unknown-linux-gnueabihf";
  crossSystem = {
    config = "armv7l-unknown-linux-gnueabihf";
    # config = "armv7l-hf-multiplatform";
    arch = "arm";
    bigEndian = false;
    libc = "glibc";
    uclibc = {
      extraConfig = ''
        CONFIG_ARM_OABI n
        CONFIG_ARM_EABI y
        ARCH_BIG_ENDIAN n
        ARCH_WANTS_LITTLE_ENDIAN y
        ARCH_WANTS_BIG_ENDIAN n
        LINUXTHREADS_OLD y
      '';
    };
  };
  pkgsCross.armv7l-unknown-linux-gnueabihf.gnupg.override.enableMinimal = true;
};
  mkShell {
    buildInputs = [
      zlib
      npth
      liblogging
      glibc
      stdenv
      clang-tools
      gcc
    ];

    inputsFrom = [gnutar npth gnupg glibc];

    shellHook = ''
      export LD_LIBRARY_PATH="${pkgs.stdenv.cc.cc.lib.outPath}/lib:$LD_LIBRARY_PATH"
    '';
  }

and nix info

 ~  nix-shell -p nix-info --run "nix-info -m" 
 - system: `"x86_64-linux"`
 - host os: `Linux 6.8.2-zen2, NixOS, 24.05 (Uakari), 24.05.20240403.fd281bd`
 - multi-user?: `yes`
 - sandbox: `yes`
 - version: `nix-env (Nix) 2.18.2`
 - channels(root): `"nixos, nixos-unstable"`
 - nixpkgs: `/nix/store/n2g5cqwv8qf5p6vjxny6pg3blbdij12k-source`
2

apparently I didn’t catch the PR that fixed this issue when I thought I would have, running nix flake update and running nix-shell fixed the problem.