Add support for XI 2.4

We will be able to use touchpad (not touchscreen) gestures, such
as pinch and swipe gestures after this change, but they are not
yet exposed to Lisp.

* src/xterm.c (x_term_init): Declare support for XI 2.4 if
present.

diff --git a/src/xterm.c b/src/xterm.c
index 42001023b3bcad9825e504d6d3597a252864b261..6be7e2e9f95fcce333ad40b133957cffac0cf03a 100644 (file)
--- a/src/xterm.c
+++ b/src/xterm.c
@@ -14764,7 +14764,9 @@ x_term_init (Lisp_Object display_name, char *xrm_option, char *resource_name)
   dpyinfo->supports_xi2 = false;
   int rc;
   int major = 2;
-#ifdef XI_BarrierHit /* XInput 2.3 */
+#ifdef XI_GesturePinchBegin /* XInput 2.4 */
+  int minor = 4;
+#elif XI_BarrierHit /* XInput 2.3 */
   int minor = 3;
 #elif defined XI_TouchBegin /* XInput 2.2 */
   int minor = 2;