anchor.diff:    ];
   
     postPatch = ''
  -    patchShebangs ./qpdf/fix-qdf
  +    patchShebangs qpdf/fix-qdf
     '';
   
     configureFlags = [
  
positive.code:   ];
  
    buildInputs = [
      pcre
      zlib
    ] ++ optionals doCheck [
  
negative.code:   ];
  
    preCheck = ''
      patchShebangs qtest/bin/qtest-driver
    '';
  
    doCheck = false;
  