pkg not properly packing the built .node into executable, how to compile into executable?

[ctlkkc]

I am using the following module installed in the project

126 var msgpack = require('msgpack');

When pkg with the following config in the package.json:

 37   "bin": "server.js",
 38   "pkg": {
 39     "assets": [
 40       "*html",
 41       "libs/*",
 42       "utils/*",
 43       "docs/*",
 44       "images/*",
 45       "node_modules/**/*"
 46     ]
 47   },

There will be the following warning:

> Warning Cannot include addon %1 into executable.
  The addon must be distributed with executable as %2.
  /home/kcharl/tmp/pack-test/package/node_modules/msgpack/build/Release/msgpackBinding.node
  path-to-executable/msgpackBinding.node
> Warning Cannot include addon %1 into executable.
  The addon must be distributed with executable as %2.
  /home/kcharl/tmp/pack-test/package/node_modules/msgpack/build/Release/obj.target/msgpackBinding.node
  path-to-executable/msgpackBinding.node

I understood that putting the .node into path-to-executable/msgpackBinding.node will work around the problem, but without doing that, the following error will crash the pkg-ed executable:

kg/prelude/bootstrap.js:1185
      throw error;
      ^

Error: Cannot find module '/snapshot/package/node_modules/msgpack/lib/../build/Release/msgpackBinding'
1) If you want to compile the package/file into executable, please pay attention to compilation warnings and specify a literal in 'require' call. 2) If you don't want to compile the package/file into executable and want to 'require' it from filesystem (likely plugin), specify an absolute path in 'require' call using process.cwd() or process.execPath.
    at Function.Module._resolveFilename (module.js:546:15)
    at Function.Module._resolveFilename (pkg/prelude/bootstrap.js:1287:46)
    at Function.Module._load (module.js:473:25)
    at Module.require (module.js:595:17)
    at Module.require (pkg/prelude/bootstrap.js:1166:31)
    at require (internal/module.js:11:18)
    at Object.<anonymous> (/snapshot/package/node_modules/msgpack/lib/msgpack.js:6:14)
    at Module._compile (pkg/prelude/bootstrap.js:1261:22)
    at Object.Module._extensions..js (module.js:662:10)
    at Module.load (module.js:564:32)

"1) If you want to compile the package/file into executable, please pay attention to compilation warnings and specify a literal in 'require' call. "

What does "specify a literal in 'require' call." mean? Does anyone know how to "specify a literal in 'require' call" in order to pkg the .node into the executable?
Thanks

[leerob]

Initial support has been merged with #837.

If there's anything else missing, please feel free to contribute back and I will take a look at the PR. Thank you! 🙏