Ah, sorry I was ssh'd into piCore, but looked on the local machine..
Try: -DCURSES_CURSES_LIBRARY=/usr/local/lib/libncursesw.so -DCURSES_FORM_LIBRARY=/usr/local/lib/libformw.so -DCURSES_INCLUDE_PATH=/usr/local/include/ncursesw -DCURSES_NCURSES_LIBRARY=/usr/local/lib/libncursesw.so