Warning: "'Call' is deprecated" when building with Node 10

[elliottregan]

There are several warnings about deprecated methods when you attempt to install this loader in a Node 10 environment.

Full output:

> node-gyp rebuild

  TOUCH Release/obj.target/libvips-cpp.stamp
  CXX(target) Release/obj.target/sharp/src/common.o
  CXX(target) Release/obj.target/sharp/src/metadata.o
../src/metadata.cc:136:15: warning: 'Call' is deprecated [-Wdeprecated-declarations]
    callback->Call(2, argv);
              ^
../../nan/nan.h:1617:3: note: 'Call' has been explicitly marked deprecated here
  NAN_DEPRECATED inline v8::Local<v8::Value>
  ^
../../nan/nan.h:98:40: note: expanded from macro 'NAN_DEPRECATED'
# define NAN_DEPRECATED __attribute__((deprecated))
                                       ^
1 warning generated.
  CXX(target) Release/obj.target/sharp/src/operations.o
  CXX(target) Release/obj.target/sharp/src/pipeline.o
../src/pipeline.cc:976:8: warning: lambda capture 'this' is not used [-Wunused-lambda-capture]
      [this](sharp::InputDescriptor *joinChannelIn) {
       ^
../src/pipeline.cc:984:20: warning: 'Call' is deprecated [-Wdeprecated-declarations]
    queueListener->Call(1, queueLength);
                   ^
../../nan/nan.h:1617:3: note: 'Call' has been explicitly marked deprecated here
  NAN_DEPRECATED inline v8::Local<v8::Value>
  ^
../../nan/nan.h:98:40: note: expanded from macro 'NAN_DEPRECATED'
# define NAN_DEPRECATED __attribute__((deprecated))
                                       ^
../src/pipeline.cc:988:15: warning: 'Call' is deprecated [-Wdeprecated-declarations]
    callback->Call(3, argv);
              ^
../../nan/nan.h:1617:3: note: 'Call' has been explicitly marked deprecated here
  NAN_DEPRECATED inline v8::Local<v8::Value>
  ^
../../nan/nan.h:98:40: note: expanded from macro 'NAN_DEPRECATED'
# define NAN_DEPRECATED __attribute__((deprecated))
                                       ^
../src/pipeline.cc:1250:18: warning: 'Call' is deprecated [-Wdeprecated-declarations]
  queueListener->Call(1, queueLength);
                 ^
../../nan/nan.h:1617:3: note: 'Call' has been explicitly marked deprecated here
  NAN_DEPRECATED inline v8::Local<v8::Value>
  ^
../../nan/nan.h:98:40: note: expanded from macro 'NAN_DEPRECATED'
# define NAN_DEPRECATED __attribute__((deprecated))
                                       ^
4 warnings generated.
  CXX(target) Release/obj.target/sharp/src/sharp.o
  CXX(target) Release/obj.target/sharp/src/utilities.o
  SOLINK_MODULE(target) Release/sharp.node
  TOUCH Release/obj.target/win_copy_dlls.stamp

Everything still appears to work just fine, but Node 10 might be the last supported version until an update arrives.

[elliottregan]

Any interest in updating this package for Node 12? This will also dismiss all these warnings.