anchor.diff:      };
     };
   
  +  constantboolean = buildPerlPackage {
  +    name = "constant-boolean-0.02";
  +    src = fetchurl {
  +      url = mirror://cpan/authors/id/D/DE/DEXTER/constant-boolean-0.02.tar.gz;
  +      sha256 = "1s8gxfg4xqp543aqanv5lbp64vqqyw6ic4x3fm4imkk1h3amjb6d";
  +    };
  +    propagatedBuildInputs = [ SymbolUtil ];
  +  };
  +
     constant-defer = buildPerlPackage rec {
       name = "constant-defer-5";
       src = fetchurl {
  
positive.code:       sha256 = "1msp79bdjzi59vignfz1cxwk5a2cjiahblvi0ka60pi8nnn0alrm";
      };
      buildInputs = [ Spiffy TestBase TestDifferences ];
    };
  
    FCGI = buildPerlPackage rec {
  
negative.code:       sha256 = "1n7rgp1q3zwglv1pka3bnhq5g41334lwc53g31w6g44my8kqz31h";
      };
      doCheck = false;                             # FIXME: 2/293 test failures
    };
  
    SymbolUtil = buildPerlPackage {
      name = "Symbol-Util-0.0203";
      src = fetchurl {
        url = mirror://cpan/authors/id/D/DE/DEXTER/Symbol-Util-0.0203.tar.gz;
        sha256 = "0cnwwrd5d6i80f33s7n2ak90rh4s53ss7q57wndrpkpr4bfn3djm";
      };
    };
  
    SysHostnameLong = buildPerlPackage rec {
  