Victor, I have these notes I wrote down when I set up the OpenIndiana buildbots. Maybe can be useful to you: (compiling from source)
"""
* ncurses 5.7: Instalación estándar "./configure --with-shared --without-normal --enable-widec --without-cxx-binding". Al curses que viene con OpenIndiana le faltan un par de funciones: "mvwchgat" y "wchgat".
"""
I installed ncurses because the lack of "mvwchgat" and "wchgat".
When compiling Python, I add export "CFLAGS=-I/usr/local/include/ncursesw" to help it to find the right lib.
Hope to be useful.