linking at run time.

["John T. Williams" <jtwilliams@vt.edu>]

Is there a way to cause an exicutable to link against a specific library at
run time.

let me explain a little
I'm creating a dynamic library like this

$ gcc pop3.c -o libpop3.so -shared  -I../include

then creating an exicutable like this

$ gcc main.c -o getmail -L../lib -I../include -lpop3

both work fine.

in order to run my exicutable I have been copying my libpop3.so file to
/use/lib
then running ldconfig

and the file exicutes fine.  but its a bit of a pain in the butt to do this
every time I recompile the library.

I was wondering if there was any way to run my program, getmail, so that ldd
would link it against a specified file so that I didn't have to put a
library that I'm developing into my /usr/lib folder.  nor have to run
ldconfig as root.

I hope this makes sense.