--- /dev/null
+/*jshint node: true */
+var inserted,
+ Module = require('module'),
+ fs = require('fs'),
+ existingExtFn = Module._extensions['.js'],
+ amdefineRegExp = /amdefine\.js/;
+
+inserted = "if (typeof define !== 'function') {var define = require('amdefine')(module)}";
+
+//From the node/lib/module.js source:
+function stripBOM(content) {
+ // Remove byte order marker. This catches EF BB BF (the UTF-8 BOM)
+ // because the buffer-to-string conversion in `fs.readFileSync()`
+ // translates it to FEFF, the UTF-16 BOM.
+ if (content.charCodeAt(0) === 0xFEFF) {
+ content = content.slice(1);
+ }
+ return content;
+}
+
+//Also adapted from the node/lib/module.js source:
+function intercept(module, filename) {
+ var content = stripBOM(fs.readFileSync(filename, 'utf8'));
+
+ if (!amdefineRegExp.test(module.id)) {
+ content = inserted + content;
+ }
+
+ module._compile(content, filename);
+}
+
+intercept._id = 'amdefine/intercept';
+
+if (!existingExtFn._id || existingExtFn._id !== intercept._id) {
+ Module._extensions['.js'] = intercept;
+}