gcc-3.3 1:3.3.3ds3-0pre3 has been built for all architectures (arm, m68k and mipsel not yet in the archives). gpc-2.1-3.3 has been disabled on alpha, arm and ia64, but the package is still in the control file, so probably the gpc-2.1-3.3 binaries need to be manually removed from testing for these architectures.
Thanks, Matthias