main.js with requirejs.config() and NodeJS module export using requirejs Stub and passing the config with assignment

r.js.recognize-assignmets-too.patch

--- r.js        2014-04-27 09:10:55.394219131 +0200
+++ r.js        2014-04-27 16:32:41.574726697 +0200
@@ -23071,9 +23072,16 @@
                     jsConfig = stringData.value;
                     foundRange = stringData.range;
                     return false;
+                } else if (arg && arg.type === "AssignmentExpression") {
+                        stringData = parse.nodeToString(fileContents, arg.right);
+                        jsConfig = stringData.value;
+                        foundRange = stringData.range;
+                        return false;
+
                 }
             } else {
                 arg = parse.getRequireObjectLiteral(node);
+
                 if (arg) {
                     stringData = parse.nodeToString(fileContents, arg);
                     jsConfig = stringData.value;
@@ -23245,6 +23253,9 @@
                 // require/requirejs.config({}) call
                 callName = c.object.name + 'Config';
             }
+        } else if (node && node.type === 'VariableDeclarator' &&
+                node.id && node.id.name === '_RequireJsConfig') {
+            callName = 'requirejsConfigVariable';
         }
 
         return callName;

requirejs-config-exportable.js

if (typeof requirejs === "undefined") {
	// Non-browser context: create stub of requirejs API to prevent runtime error

	var requirejs = { IS_STUB: true };
	requirejs.config = function(){ /* STUB*/ };
}

var _RequireJSConfig;

// Depdending on the context, call the real or stub's config() and 
// assign config to local variable
requirejs.config(_RequireJSConfig = {
	paths: {
		// ...
	},

	shim: {
		// ...
	}
});

if (typeof exports !== "undefined") {
	// NodeJS context: export assigned config
	module.exports.requireJsConfig = _RequireJSConfig;
}

if (!requirejs.IS_STUB) {
	// Browser context (not subbed): "require" is RequireJS related, not NodeJS

	require(["jquery", "backbone", "router"], function($, Backbone, Router){

        	// Code here

	});

}

Requires a patch to r.js making the findConfig() method invoked when using mainConfigFile aware of inline assignments.