anchor.diff:  
     arch = archs."${stdenv.system}" or (throw "system ${stdenv.system} not supported");
   
  -  checkInputs = [ git gmp openssl readline libxml2 libyaml ];
  +  checkInputs = [ git gmp openssl_1_0_2 readline libxml2 libyaml ];
   
     genericBinary = { version, sha256s, rel ? 1 }:
     stdenv.mkDerivation rec {
  
positive.code: 
      buildInputs = [
        boehmgc libatomic_ops pcre libevent libyaml
        llvm zlib openssl
      ] ++ stdenv.lib.optionals stdenv.isDarwin [
        libiconv
      ];
  
negative.code: { stdenv, lib, fetchFromGitHub, fetchurl, makeWrapper
  , coreutils, git, gmp, nettools, openssl_1_0_2, readline, tzdata, libxml2, libyaml
  , boehmgc, libatomic_ops, pcre, libevent, libiconv, llvm, clang, which, zlib
  , callPackage }:
  
  