Chris Rolliston: +Larry Hengen The Kylix IDE was a fork of the Delphi IDE and used WineLib. It was the applications you built with the Kylix IDE that were QT based.
Via [WayBack] I don’t mean to Whine but, if WINE is mature enough, why doesn’t EMBT officially test and support WINE for development on Mac OS/X and Linux for… – Larry Hengen – Google+
There is a bit of C++BuilderX history as well (which was based on JBuilder).
–jeroen