Search NODE_PATH properly

lib/util.js

@@ -115,10 +115,19 @@ function _findModuleMain(absModulePath, tryFileName) {
 	return foundPath
 }
 
+var _nodePaths = process.env.NODE_PATH.split(':')
 var _pathnameGroupingRegex = /require\s*\(['"]([\w\/\.-]*)['"]\)/
 function resolveRequireStatement(requireStmnt, currentPath) {
 	var rawPath = requireStmnt.match(_pathnameGroupingRegex)[1],
 		resolvedPath = resolve(rawPath, path.dirname(currentPath))
+
+	if (!resolvedPath && rawPath[0] != '.' && rawPath[0] != '/') {
+		for (var i=0; i<_nodePaths.length; i++) {
+			resolvedPath = _findModuleMain(path.resolve(_nodePaths[i], rawPath))
+			if (resolvedPath) { break }
+		}
+	}
+
 	if (!resolvedPath) { throw 'Could not resolve "'+rawPath+'" in "'+currentPath+'"' }
 	return resolvedPath
 }