Extension modules

Hello I want to create a extension module which can be loaded dynamically.I created a sample extension module using ext_skel script from source.The .lo and .la files are getting built.But I don't see a .so file created . Can any body provide procedure for createing a .so (shared object file) file that can be loaded using dl () command. ************************************************************************** This email (including any attachments) is intended for the sole use of the intended recipient/s and may contain material that is CONFIDENTIAL AND PRIVATE COMPANY INFORMATION. Any review or reliance by others or copying or distribution or forwarding of any or all of the contents in this message is STRICTLY PROHIBITED. If you are not the intended recipient, please contact the sender by email and delete all copies; your cooperation in this regard is appreciated. **************************************************************************