Respect ncurses cflags on Linux tty

sys/unix/hints/linux.500

@@ -177,7 +177,7 @@ NHCFLAGS+=-DCOMPRESS=\"/bin/gzip\" -DCOMPRESS_EXTENSION=\".gz\"
 #NHCFLAGS+=-DLIVELOG
 #NHCFLAGS+=-DCHANGE_COLOR
 NHCFLAGS+=-DSELF_RECOVER
-ifdef WANT_WIN_CURSES
+ifeq "$(USE_CURSESLIB)" "1"
 NHCFLAGS+=$(NCURSES_CFLAGS)
 ifeq "$(HAVE_NCURSESW)" "1"
 NHCFLAGS+=-DCURSES_UNICODE
@@ -186,7 +186,7 @@ ifdef MAKEFILE_SRC
 $(info Attention: CURSES_UNICODE is not being defined without ncursesw)
 endif   #MAKEFILE_SRC
 endif   #HAVE_NCURSESW
-endif   #WANT_WIN_CURSES
+endif   #USE_CURSESLIB
 
 #
 #-INCLUDE multisnd1-pre.500