gistfile1.js

// javascripts/libs/underscore/underscore.min.js
// The actual underscore library.

...



// javascripts/libs/underscore.js
// A "module" that we require elsewhere.

define([
    'libs/underscore/underscore.min'
],
function (underscoreLibrary) {
    return window._;
});



// javascripts/libs/backbone/backbone.min.js
// The actual backbone library.

...



// javascripts/libs/backbone.js
// A "module" that we require elsewhere.

define([
    'order!libs/underscore/underscore.min',
    'order!libs/backbone/backbone.min'
],
function (underscoreLibrary, backboneLibrary) {
    return window.Backbone;
});