anchor.diff:  
   , readline
   , ncurses
  +, zlib
   }:
   
   let
  
positive.code:   passthru = {
      srcVerification = fetchurl {
        failEarly = true;
        sha1Confirm = "2fb24ec12001926d5209d2da90d252b9825366ac";
        inherit (src) urls outputHash outputHashAlgo;
      };
    };
  
negative.code: 
    src = fetchurl {
      url = "https://sqlite.org/${releaseYear}/sqlite-autoconf-${version'}.tar.gz";
      multihash = "QmV4fPHStuECWQPdiNbphTjw7Cat4ficDU7kth26tgzfJx";
      hashOutput = false;
      sha256 = "b7711a1800a071674c2bf76898ae8584fc6c9643cfe933cfc1bc54361e3a6e49";
    };
  
    buildInputs = [
      readline
      ncurses
      zlib
    ];
  
    configureFlags = [
  