On http://people.debian.org/~doko/gcc-3.[34] you find packages with a setup to build biarch compilers on powerpc (which needs a 64bit glibc as a build dependency).
- gcc-3.3: added a patch to build from the hammer branch (3.3.4). This works on i386, fails on amd64, powerpc unknown. edit debian/rules.defs (hammer_branch). - gcc-3.4: edit debian/rules.defs (powerpc64_build) In both cases a patch like debian/patches/sparc-config-ml is still needed. Thanks for any feedback.