Library versions (libg++2.7.2/libc6.1-1)

[Dave Sherohman <esper@sherohman.org>]

I'm trying to install some software whose installer wants to see
libstdc++-libc6.1-1.so.2, libg++.so.2.7.2, and libstdc++.so.27.
I've installed libg++27 and symlinked those libraries from
/usr/lib/libc5-compat to /usr/lib and /usr/lib/libstdc++-libc6.1-2.so.3
to libstdc++-libc6.1-1.so.2.

Needless to say, this segfaults the installer, but those are the closest
I've been able to find to the required versions.  (libg++27 claims
that "libg++272 is the libc6 package", but neither 'apt-cache show'
nor debian.org's web search can find any evidence of a libg++272 aside
from that statement.)

I assume that debs exist of these libraries, even though they may be
considered obsolete.  Where can I find them?  If not, what's my best
bet for getting this piece of sh^Hoftware up and running?