The packages
* ape-gnu-* :: APE libraries for gcc
* gnubin-*-.tbz :: binaries required for the gcc toolchain
* autoconf* :: autoconf

are mirrored from the port of a recent gcc tool chain, described here:

http://marcus.biz.tm/jail/

the gnubin package is much larger than the old one found at /n/sources/extra/gcc and contains the following packages:

gcc: 4.5.4
m4:  1.4.16
gmake: 3.82
gsed: 4.2.2
gnu grep: 2.14
gawk: 4.0.0
gnu gettext: 0.10.38
gdb: 7.5
gnu pth: 2.07
perl: 5.14
mksh