G> From: "Geo." 

 G> "Mark.Lewis"  wrote in message
 G> news:0099cd.92a48c{at}harborwebs.com...

>> FWIW: linux systems can carry multiple versions of the
>> same libraries at the same time so that programs that
>> need to use them may do so...

 G> can you have both libc and glibc installed?

one of my boxes has

  /usr/i486-linux-libc5
  /usr/i586-glibc20-linux

  /usr/i486-linux-libc5/lib/libc.so.5 -> libc.so.5.3.12
  /usr/i586-glibc20-linux/lib/libc.so.6 -> libc-2.0.7.so

it appears that i have libc shared objects from two those two different
libraries so i would have to say "yes", i think...

)\/(ark