I've taken a look at the gcc 2.7.0 distribution.
The missing env-archive/ and s/ files are in the
gcc270-readme archive (don't ask me why, it
would be more logical if they put them in the
base archive). Don't forget to copy the ixemul
library, but beware that all newer software that
uses ixemul require a recent version, so you'll
have to copy the old version everytime you want
to use gcc. There's another exe in the bin directory
(called gcc-vfork or something similar) that works
better with a newer library, but it doesn't work
very well.
Another option would be to get the complete gcc
2.9.5 (which should have 060 optimization, too)
from Louise's page:
http://louise.amiga.hu/index.phpIt's a 11 megs gzipped file, which should include
a complete and fully working gcc compiler together
with some utilities. I've checked the homepage,
it looks like it has been revamped and I couldn't
find the archive, I hope it's still there...
Another source of precious information is here:
http://www.ezcyberspace.com/gcc/Varthall