Workaround for systems not yet having XCB 1.10

If the new used event types are not present, we define them.
This should fix the broken build on the CI system.

events.cpp

@@ -62,6 +62,19 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include "killwindow.h"
 #include "x11eventfilter.h"
 
+#ifndef XCB_GE_GENERIC
+#define XCB_GE_GENERIC 35
+typedef struct xcb_ge_generic_event_t {
+    uint8_t  response_type; /**<  */
+    uint8_t  extension; /**<  */
+    uint16_t sequence; /**<  */
+    uint32_t length; /**<  */
+    uint16_t event_type; /**<  */
+    uint8_t  pad0[22]; /**<  */
+    uint32_t full_sequence; /**<  */
+} xcb_ge_generic_event_t;
+#endif
+
 namespace KWin
 {
 

glxbackend.cpp

@@ -42,6 +42,23 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include <unistd.h>
 #include <xcb/glx.h>
 
+#ifndef XCB_GLX_BUFFER_SWAP_COMPLETE
+#define XCB_GLX_BUFFER_SWAP_COMPLETE 1
+typedef struct xcb_glx_buffer_swap_complete_event_t {
+    uint8_t            response_type; /**<  */
+    uint8_t            pad0; /**<  */
+    uint16_t           sequence; /**<  */
+    uint16_t           event_type; /**<  */
+    uint8_t            pad1[2]; /**<  */
+    xcb_glx_drawable_t drawable; /**<  */
+    uint32_t           ust_hi; /**<  */
+    uint32_t           ust_lo; /**<  */
+    uint32_t           msc_hi; /**<  */
+    uint32_t           msc_lo; /**<  */
+    uint32_t           sbc; /**<  */
+} xcb_glx_buffer_swap_complete_event_t;
+#endif
+
 #include <tuple>
 
 #if __cplusplus <= 201103L