anchor.diff:      use_system_v8 = false;
     } // optionalAttrs (post24 && !post25) {
       use_system_libvpx = true;
  +    use_system_protobuf = true;
     };
   
     defaultDependencies = [
  
positive.code:   post24 = !versionOlder sourceInfo.version "25.0.0.0";
    post25 = !versionOlder sourceInfo.version "26.0.0.0";
    only24 = post23 && !post24;
  
    maybeFixPulseAudioBuild = optional (only24 && pulseSupport)
      ./pulse_audio_fix.patch;
  
negative.code:     ++ optional enableSELinux libselinux
      ++ optional cupsSupport libgcrypt
      ++ optional pulseSupport pulseaudio
      ++ optionals post24 [ pciutils protobuf ]
      ++ optional only25 libvpx
      ++ optionals post25 [ speechd libXdamage ];
  
    opensslPatches = optional useOpenSSL openssl.patches;
  
  