wpa_supplicant 2.0 had been ported to OS/2-eComStation (2013-05-12).
You can download this test build at:
http://smedley.id.au/tmp/wpa_supplicant-2.0-os2-20130512.zip
wpa_supplicant is a free software implementation of an IEEE 802.11i supplicant for several operating systems. In addition to being a full-featured WPA2 supplicant, it also implements WPA and older wireless LAN security protocols.
Review this version changelog.
http://hostap.epitest.fi/gitweb/gitweb.cgi?p=hostap.git;a=blob_plain;f=wpa_supplicant/ChangeLog
Feedback to Paul Smedley is appreciated. You can also show your apreciation of this port by donating to his Paypal account or via Mensys.