Ncurses was compiled with the following paths to avoid conflicting with
BSD curses or having to use the /usr/local directory. Here are the paths
used:

/usr/lib: location of ncurses libraries.
/usr/lib/terminfo: terminfo database.
/usr/include/ncurses: include files for ncurses.

To compile using ncurses, you need to make sure it finds the include files
for ncurses before it finds the ones for BSD curses (in /usr/include). Also,
you need to make sure that you link with -lncurses instead of -lcurses.

For instance, you'd probably want to add -I/usr/include/ncurses to your 
Makefile to be sure that /usr/include/ncurses is searched before /usr/include.