anchor.diff:      };
   
       nativeBuildInputs = [ cmake pkg-config ];
  -    buildInputs = [ c-ares c-ares.cmake-config grpc openssl protobuf zlib ];
  +    buildInputs = [ grpc openssl protobuf ];
   
       postPatch = ''
         sed -e 's,https://github.com/googleapis/googleapis/archive/9c9f778aedde02f9826d2ae5d0f9c96409ba0f25.tar.gz,file://${googleapis},' \
  
positive.code: , doxygen
  , protobuf
  , crc32c
  , c-ares
  , fetchurl
  , openssl
  , zlib
  , libnsl
  }:
  let
  
negative.code:     sha256 = "15wci4m8h6py7fqfziq8mp5m6pxp2h1cbh5rp2k90mk5js4jb9pa";
    };
  
    buildInputs = [ curl crc32c googleapis-cpp-cmakefiles grpc protobuf libnsl ];
    nativeBuildInputs = [ clang-tools cmake pkg-config doxygen ];
  
    outputs = [ "out" "dev" ];
  