ADA compiler for QNXRTP?

Hello,

Does any of you fine people know of a ADA compiler which will work with
QNXRTP? I had a look at GNAT with a view to porting it, but the readme file
states that you need a previous version of GNAT to compile it (DOH!!!).

Anyone have any other ides? All help much appreciated.

Super cheers
Duncan Smith