Hi, I've just compiled gcc 3.4.3 from a x86/Linux-mandrake10.1 to ppc604/vxWorks5.4 I have to fix few problem in vxworks include (wchar_t and some other things were defined twice) but the compiler seems to work fine I did some tests this afternoon, and I'll do more next week. Maybe you should give gcc3.4.3 a try. Jean-François ps : some times 2.95.3 generates wrong code