gistfile1.php

//Module.php
<?php

namespace VendorName\LibraryName;

class Module
{
    public function getAutoloaderConfig()
    {
        return array(
            'Zend\Loader\StandardAutoloader' => array(
                'namespaces' => array(
                    __NAMESPACE__ => __DIR__ . '/src/' . __NAMESPACE__,
                ),
            ),
        );
    }
}

gistfile2.txt

Have your directory structure like this:
VendorName\LibraryName:
  Module.php
  src\VendorName\LibraryName:
    your files.
    MyClass.php (which would be namespaced as VendorName\LibraryName\MyClass)