http://gcc.gnu.org/mirrors.html lists a number of mirrors that are no longer reachable, doesn't mention that certain mirrors don't have snapshots, etc. Can you please investigate.
I found problems with the following mirrors: ftp://ftp.funet.fi/pub/mirrors/ - no longer has a GCC mirror ftp://ftp.lip6.fr - unreachable ftp://ftp.uvsq.fr/pub/gcc/ - unreachable ftp://ftp.club-internet.fr/pub/gcc/ - severly out of date (3.3 is latest) ftp://ftp.eos.hokudai.ac.jp/pub/gcc/ - unknown host ftp://ring.aist.go.jp/pub/GNU/gcc/ - has no snapshots (and has weird structure) ftp://ring.etl.go.jp/pub/lang/egcs/ - unreachable ftp://core.ring.gr.jp/pub/GNU/gcc/ - has no snapshots (and has weird structure) ftp://ftp.ring.gr.jp/pub/GNU/gcc/ - has no snapshots (and has weird structure) ftp://ftp.task.gda.pl/pub/gnu/gcc/ - has no snapshots (and has weird structure) ftp://sunsite.icm.edu.pl/pub/gnu/gcc/ - has no snapshots (and has weird structure) ftp://linux.ihep.su/pub/cygnus/egcs/ - unreachable ftp://mirrors.rcn.net/pub/sourceware/gcc/ -- Martin Michlmayr http://www.cyrius.com/