Steve Fosdick:
With a web server with mod_perl available, is the perl interpreter itself embedded in the mod_perl.so module, or does mod_perl.so load the perl interpreter from some external source, e.g. a libperl.so that is part of the systems normally perl installation.
"It depends." If you're just using the normal perl you get with most distributions, then I think mod_perl has most of the perl interpreter inside it. If you're using a perl built as the mod_perl docs instruct you to, then it's nearly all loaded in from a shared library.
To be safe, recompile your mod_perl or install the two perls side-by-side.