Clear up some NetHack warnings with updated PDCurses by using
-DCHTYPE_32
..\win\curses\cursinvt.c(98): warning C4244: 'function': conversion from 'attr_t' to 'int', possible loss of data
..\win\curses\cursinvt.c(101): warning C4244: 'function': conversion from 'attr_t' to 'int', possible loss of data
..\win\curses\cursinvt.c(105): warning C4244: 'function': conversion from 'attr_t' to 'int', possible loss of data