utf8 support for ncurses is broken

[stesachse]

in oping.c:923 in has_utf8() the # if HAVE_NCURSESW_NCURSES_H is wrong. in consequence of this hist_symbols_utf8 is not used and the the graph type prettyping is not realy pretty. the name of the header file is curses.h see also oping.c:85 or the third changelog entry from 1997/05/31 😎

diff --git a/src/oping.c b/src/oping.c
index c087c80..7ceb4e0 100644
--- a/src/oping.c
+++ b/src/oping.c
@@ -920,7 +920,7 @@ static void time_calc (struct timespec *ts_dest, /* {{{ */
 #if USE_NCURSES
 static _Bool has_utf8() /* {{{ */
 {
-# if HAVE_NCURSESW_NCURSES_H
+# if HAVE_NCURSESW_CURSES_H
 	if (!opt_utf8)
 	{
 		/* Automatically determine */

works for me on master with fedora 28

[ar1a]

I'm getting this also