anchor.diff:  
       #in args.stdenv.mkDerivation {
   
  -    #  # passing the flags in case a library using this want's to check them .. 
  -    #  inherit (co) flags buildInputs configureFlags;
  +    #  # passing the flags in case a library using this want's to check them (*) .. 
  +    #  inherit (co) /* flags */ buildInputs configureFlags;
       #  inherit (co.flags) justAOption;
   
       #  extraSrc = (if co.flags.justAOption then null else src = .. );
  
positive.code:       configureFlags = concatStrings (intersperse " " ( catAttrs "cfgOption" chosenFlat)) 
            + (if (__hasAttr "profilingLibraries" chosen) then "" else " --disable-profiling");
  
        flags = map ( flag: av flag (__hasAttr flag chosen) ) (__attrNames flagDescr);
        };
  
  }
  
negative.code:     #    md5 = "1fb29764a6a650a4d5b409dda227ac9f";
      #  };
      #}
  
      # (*) does'nt work because nix is seeing this set as derivation and complains about missing outpath.. :-(
  
  
  
  