Several snapshots on the same system?

[Tom Womack]

Reading install.texi, I expected to be able to have several different
snapshots of gcc-3.1 installed in /usr/local on the same system
simultaneously, by changing --program-suffix when I configure each snapshot.

This doesn't work (which is annoying, since gcc-3.1-20020204 miscompiles the
MRI program I've mentioned, and I was hoping to be able to revert without
the 90 minutes it takes to recompile the old snapshot). Is there any way it
could be made to work, say by appending program-suffix to the name of the
i686-pc-linux-gnu directory in /usr/local/lib/gcc-lib?

Tom