> ttf2woff2@1.2.3 install /build/node_modules/gulp-iconfont/node_modules/gulp-ttf2woff2/node_modules/ttf2woff2
> (node-gyp rebuild > builderror.log) || (exit 0)

../csrc/addon.cc: In function 'void Convert(const v8::FunctionCallbackInfo<v8::Value>&)':
../csrc/addon.cc:32:38: error: 'class v8::Object' has no member named 'GetIndexedPropertiesExternalArrayDataLength'
   size_t input_length = inputBuffer->GetIndexedPropertiesExternalArrayDataLength();
                                      ^
../csrc/addon.cc:34:20: error: 'class v8::Object' has no member named 'GetIndexedPropertiesExternalArrayData'
       inputBuffer->GetIndexedPropertiesExternalArrayData());
                    ^
../csrc/addon.cc:49:70: error: conversion from 'v8::MaybeLocal<v8::Object>' to non-scalar type 'v8::Local<v8::Object>' requested
   Local<Object> slowBuffer = node::Buffer::New(isolate, output_length);
                                                                      ^
make: *** [Release/obj.target/addon/csrc/addon.o] Error 1
gyp ERR! build error
gyp ERR! stack Error: `make` failed with exit code: 2
gyp ERR! stack     at ChildProcess.onExit (/opt/nodejs/lib/node_modules/npm/node_modules/node-gyp/lib/build.js:276:23)
gyp ERR! stack     at emitTwo (events.js:87:13)
gyp ERR! stack     at ChildProcess.emit (events.js:172:7)
gyp ERR! stack     at Process.ChildProcess._handle.onexit (internal/child_process.js:211:12)
gyp ERR! System Linux 5.2.8-arch1-1-ARCH
gyp ERR! command "/opt/nodejs/bin/node" "/opt/nodejs/lib/node_modules/npm/node_modules/node-gyp/bin/node-gyp.js" "rebuild"
gyp ERR! cwd /build/node_modules/gulp-iconfont/node_modules/gulp-ttf2woff2/node_modules/ttf2woff2
gyp ERR! node -v v4.7.3
gyp ERR! node-gyp -v v3.4.0
gyp ERR! not ok