Hi Pawel, there are actually no "special" Sorces for OpenSolaris of OpenVPN available.
The sources provided on www.openvpn.net are for Unix/Linux systems. Pls. refer to the page, download the openvpn 2.0.9 source and compile it considering Julian's recommendation. Have a nice day ahead and best regards to Poland. Dave. -- This message posted from opensolaris.org