Gabriel Dos Reis dixit:

The situation for 3.3.x is radically different from that of 3.2.x.

The files in gcc/gcc/config/ from 3.3 are radically different from 3.2, which made it a) not feasible for MirOS to upgrade to 3.3 b) not easy for gpc (if I remember the mailing list stuff correctly). //mirabile