master 815a8a7: Pacify unused variable warning in xterm.c

[Basil L. Contovounesios]

branch: master
commit 815a8a7db21640633b1615044838c73e2451ac86
Author: Basil L. Contovounesios <contovob@tcd.ie>
Commit: Basil L. Contovounesios <contovob@tcd.ie>

    Pacify unused variable warning in xterm.c
    
    * src/xterm.c (handle_one_xevent) <GenericEvent> [HAVE_XINPUT2]: The
    variable any_stop_p is used only when HAVE_XWIDGETS, so guard its
    declaration accordingly to pacify GCC's -Wunused-variable warning.
---
 src/xterm.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/xterm.c b/src/xterm.c
index ae0daa7..41aa2b2 100644
--- a/src/xterm.c
+++ b/src/xterm.c
@@ -9851,7 +9851,9 @@ handle_one_xevent (struct x_display_info *dpyinfo,
        XIValuatorState *states;
        double *values;
        bool found_valuator = false;
+#ifdef HAVE_XWIDGETS
        bool any_stop_p = false;
+#endif /* HAVE_XWIDGETS */
 
        /* A fake XMotionEvent for x_note_mouse_movement. */
        XMotionEvent ev;