LYNX-DEV lynx-ac: curses.h vs ncurses.h in configure

[Андрей Чернов]

configure is very broken for FreeBSD mostly because for all curses ability
tests configure uses
#include <curses.h>
while FreeBSD needs
#include <ncurses.h>
instead.
As result configure assumes poor curses library present instead of
ncurses.

NCURSESHEADER variable is set properly but not used for following
configure tests to determine which curses header must be included. 

Please fix.

-- 
Andrey A. Chernov
<address@hidden>
http://www.nagual.pp.ru/~ache/

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