solc: make darwin friendly

[jonringer]

Motivation for this change

Address #115034 (comment)

cc @hlolli

Things done

• Tested using sandboxing (nix.useSandbox on NixOS, or option sandbox in nix.conf on non-NixOS linux)
• Built on platform(s)
  • NixOS
  • macOS
  • other Linux distributions
• Tested via one or more NixOS test(s) if existing and applicable for the change (look inside nixos/tests)
• Tested compilation of all pkgs that depend on this change using nix-shell -p nixpkgs-review --run "nixpkgs-review wip"
• Tested execution of all binary files (usually in ./result/bin/)
• Determined the impact on package closure size (by running nix path-info -S before and after)
• Ensured that relevant documentation is up to date
• Fits CONTRIBUTING.md.

[hlolli]

I'm using solc for the first time.

But it compiles, and when testing hello world

(on nixos-darwin, M1 macbook pro)

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
contract helloWorld {
 function renderHelloWorld () public pure returns (string memory) {
   return 'helloWorld';
 }
}

[nix-shell:~/.cache/nixpkgs-review/pr-123702]$ solc --bin -o solcoutput solc_text.sol
Compiler run successful. Artifact(s) can be found in directory solcoutput.

[jonringer]

darwin failure is from tests. Probably would need additional work to get tests to work (they are disabled by default, only passthru.tests runs them).