I am building some cross-compilers using the crosstool scripts (http://kegel.com/crosstool/) and I think that they are generally useful to Debian.
I have a new version that is based on crosstool 0.28-rc32 and also has a SPARC cross-compiler. I don't have access to any other architecture to test... It can be downloaded from: ftp.las.ic.unicamp.br/pub/crosstool Thanks for any comment. Rafael