[gentoo-user] Installing an old glibc to run a proprietary commercial tool (would that even help?)

[Duncan Smith]

The company I work for is using gentoo on all its machines.  We just
got a license to a commercial tool which does not support gentoo.  The
closest thing it supports is RHEL v4.

Running any command provided by the tool results in an explosive
memory leak (virtual memory hits 400G in 1 second, and continues to
climb).

I suspect the problem is that RHEL v4 uses =sys-libs/glibc-2.3.4,
whereas we have =sys-libs/glibc-2.9_p20081201-r2 installed.

I have three questions:
 1. Am I posting to the right list?
 2. Any idea what's going on?  Could it be something other than glibc
causing the problem?
 3. If it is glibc, is there some way to install glibc slotted?  Could
I install an old version of glibc to some other lib folder (like
/opt/lib64), and then use LD_LIBRARY_PATH somehow to get the tool to
look there first?  How?

Thanks for any help or ideas.

Duncan

P.S. In case it's useful, here is the output of ldd:
        linux-vdso.so.1 =>  (0x00007fff9e3ff000)
        libncurses.so.5 => /lib/libncurses.so.5 (0x00007f49c871b000)
        libresolv.so.2 => /lib/libresolv.so.2 (0x00007f49c8503000)
        libm.so.6 => /lib/libm.so.6 (0x00007f49c827e000)
        libdl.so.2 => /lib/libdl.so.2 (0x00007f49c807a000)
        libc.so.6 => /lib/libc.so.6 (0x00007f49c7d07000)
        /lib64/ld-linux-x86-64.so.2 (0x00007f49c897a000)