(x_redisplay_interface): Fix flush_display_optional.

diff --git a/src/xterm.c b/src/xterm.c
index 131753f893cd3eeedac029cadc7b73499d712490..8aa52b658c8b0e1b1b7332d645679527972a1977 100644 (file)
--- a/src/xterm.c
+++ b/src/xterm.c
@@ -10758,7 +10758,7 @@ static struct redisplay_interface x_redisplay_interface =
   x_update_window_end,
   x_cursor_to,
   x_flush,
-#ifndef XFlush
+#ifdef XFlush
   x_flush,
 #else
   0,  /* flush_display_optional */