Question

After following instructions on the emscripten wiki I have managed to compile a small C library. This resulted in an a.out.js file.

I was assuming that to use functions from this library (within node.js) something like this would have worked:

var lib = require("./a.out.js");
lib.myFunction('test');

However this fails. Can anyone help or point me to some basic tutorial related to this?

Answer 1

The problem here is that your a.out.js file is going to look like this

function myFunction() {
  ...
}

Not like this

function myFunction() {
  ...
}

exports.myFunction = myFunction;

You need to write a build script that lists the tokens you want to publically export from each C program and appends exports.<token> = <token>;\n to the end of your file for each token.