The Interix Software Development Kit (SDK) libraries include libcurses.a, a port of the ncurses package, and libtermcap.a, termcap routines.
The curses routines make use of the terminfo database, stored in /usr/share/terminfo. This location is different from the location used in traditional systems. You can link with the terminfo routines by linking with the curses library.
For more information, see Programming with curses.