Porting C++Builder code to X Windows

Does any one know a tool for porting C++Builder code to X-Windows?
MainSoft and Bristol tools seem only to work for MFC.
I'd be most obliged for a name and vendor.

Thanks,

--
Gadi Geffen      Tel   : 972-9-9594865/777
Tecnomatix Technologies Ltd        Fax   : 972-9-9544402
Delta House, 16 Hagalim Avenue
Herzliya 46733,  Israel        mailto:ga...@tecnomatix.com