Build package that require libstdcxx5

Help
1

I need to build an old package the require libstdc++.so.5 but adding libstdcxx5 prints libstdcxx5 is severly outdated and has been removed.

So two questions:

  1. is it possible and has it a chance to work if I replace .so.5 with a more recent version like .so.6? How?
  2. if not, do you know the latest nix hash that contains this lib to combine it with flake?
2

This is the pr that removed libstdcxx5, which might be of some help:

Based on this, the last git revision that has this package is its parent,
c8bb7b26f2c6ecc39be2c4ddde5f5d152e4abc65.

3

Thanks a lot. I also used nixpkgs.url = "github:nixos/nixpkgs/nixos-24.05"; in my flake, it seems to be the latest stable channel that has it.