g++ -ldl

["Jeremy Sheldon" <jeremy_sheldon@xxxxxxxxxxx>]

would someone please point me to the correct place to find information on 
what the -ldl option would do for g++ ?  I've looked at the gcc man page and 
browsed google for a while and can't find much information on it.  I have a 
situation where using it clears up a few "undefined reference to `dlopen'" 
errors and would like to understand why.

sheldon