anchor.diff: -{ stdenv, fetchFromGitHub, autoreconfHook
  +{ stdenv, fetchFromGitHub, fetchpatch, autoreconfHook
   , coreutils, gnugrep, gnused, lm_sensors, net_snmp, openssh, openssl, perl
  +, mysql, zlib
   , runtimeShell }:
   
   with stdenv.lib;
  
positive.code:   '';
  
    # !!! make openssh a runtime dependency only
    buildInputs = [ net_snmp openssh openssl perl ];
  
    nativeBuildInputs = [ autoreconfHook ];
  
  
negative.code:     sha256 = "1pw7i6d2cnb5nxi2lbkwps2qzz04j9zd86fzpv9ka896b4aqrwv1";
    };
  
    patches = [
      # https://github.com/monitoring-plugins/monitoring-plugins/issues/1508
      (fetchpatch {
        url = "https://github.com/monitoring-plugins/monitoring-plugins/commit/ac0437ff896ba9ce2549b2d2ec3de146a886f08a.patch";
        sha256 = "0jf6fqkyzag66rid92m7asnr2dp8rr8kn4zjvhqg0mqvf8imppky";
      })
    ];
  
    # !!! Awful hack. Grrr... this of course only works on NixOS.
    # Anyway the check that configure performs to figure out the ping
    # syntax is totally impure, because it runs an actual ping to
  