tweak2

Gruntfile.js

@@ -17,11 +17,9 @@ module.exports = function (grunt) {
             igv: {
                 src: [
                     'js/**/*.js',
-                    '!js/shim.js',
                     'vendor/inflate.js',
                     'vendor/zlib_and_gzip.min.js',
-                    'vendor/jquery.mousewheel.js',
-                    'js/shim.js'
+                    'vendor/jquery.mousewheel.js'
                 ],
                 dest: 'dist/igv.js'
             }

js/shim.js → js/requireShim.js

@@ -49,12 +49,30 @@
  */
 
 /**
- * Self evalutating function that returns the global igv object, creating it if neccessary.  This file should be
- * concatenated last when building "igv.js".  Purpose is to support shims in require.js.
+ * Self evalutating function that returns the global igv object, creating it if neccessary.
+ * Purpose is to support shims in require.js and browserify.
  *
  */
-var igv = (function (igv) {
+(function igvForAMD() {
+
+
+    if ( typeof define === 'function' && define.amd ) {
+
+        // AMD. Register as an anonymous module.
+
+        define(['igv'], igv);
+
+    } else if (typeof exports === 'object') {
+
+        // Node/CommonJS style for Browserify
+
+        module.exports = igv;
+
+    }
+
+
+})(function (igv){
 
     return igv;
 
-})(igv || {});
+});