I was able to build this under cygwin, but there are a couple points to note:
1. You may get the error "cannot find curses.h". You will need to install the ncurses library. For cygwin this can be found in libncurses-devel. (The basic libncurses packages do not have curses.h).
2. For some reason when I ran ./configure it did not set up the Makefile to link with the ncurses library. In the /src/Makefile file you will need to modify the CURSES_LIBS line to read
CURSES_LIBS = -lncurses