I can't find Tcl on this system.
Eggdrop requires Tcl to compile. If you already have Tcl installed
on this system, and I just wasn't looking in the right place for it,
set the environment variables TCLLIB and TCLINC so I will know where
to find 'libtcl.a' (or 'libtcl.so') and 'tcl.h' (respectively). Then
run 'configure' again.
