On Wed, Oct 20, 2010 at 6:47 AM, Dr. David Kirkby <david.kirkby@xxxxxxxxxx> wrote: > Is there a way I can see what c++ library someone has, and determine if it's > older than the one I built the program with? If so, they need to get a more > recent library and have that in their linker search path before the old one. readelf -V should work. It will show you the versions defined by the library. Look at the contents of the "Version definition section". Ian