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Since the problem comes from the way Red Hat 6.0 symlinks
the kernel libraries, which then creates a conflict between
library files if a kernel is compiled from source in the old
standard location of /usr/src/linux (don't think it would
apply to installing kernels from RPM since I don't think Red
Hat ever came up with a path to upgrade 6.0 to a 2.4 kernel
without upgrading the whole distribution) ... hmm, wonder if
that's precise enough for your purposes. There are various
system components upgraded from RPM after the base 6.0
release for security concerns and so on, so if the fix
wouldn't be generic to "6.0 + custom-compiled kernel in
/usr/src/linux" then this system probably couldn't be
defined precisely enough for the purpose.