Do not use GTK 3 if it exists but cannot be compiled.

* configure.ac: Leave GTK_OBJ and term_header alone if GTK 3
exists but cannot be compiled.
* src/xmenu.c (x_menu_wait_for_event) [!USE_GTK]:
* src/xterm.c (x_error_handler) [!USE_GTK]:
Do not use GTK 3.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/xterm.c b/src/xterm.c
index 7505aa3936b..9c868aec392 100644
--- a/src/xterm.c
+++ b/src/xterm.c
@@ -7824,7 +7824,7 @@ static void x_error_quitter (Display *, XErrorEvent *);
 static int
 x_error_handler (Display *display, XErrorEvent *event)
 {
-#ifdef HAVE_GTK3
+#if defined USE_GTK && defined HAVE_GTK3
   if (event->error_code == BadMatch
       && event->request_code == X_SetInputFocus
       && event->minor_code == 0)