--- t.c	2012-11-12 18:17:57.289503725 +0100
+++ xkb-crash.c	2012-11-12 18:46:08.163692089 +0100
@@ -28,10 +28,16 @@ int main() {
         return -1;
     }
 
-    const xcb_xkb_get_map_map_t *map = (xcb_xkb_get_map_map_t *)xcb_xkb_get_map_map(map_reply);
+    void *buffer = xcb_xkb_get_map_map(map_reply);
+    xcb_xkb_get_map_map_t map;
+    xcb_xkb_get_map_map_unpack(buffer, map_reply->nTypes, map_reply->nKeySyms, map_reply->nKeyActions,
+		    map_reply->totalActions, map_reply->totalKeyBehaviors, map_reply->nVModMapKeys,
+		    map_reply->totalKeyExplicit, map_reply->totalModMapKeys, map_reply->totalVModMapKeys,
+		    map_reply->present, &map);
 
-    xcb_xkb_key_v_mod_map_iterator_t iter = xcb_xkb_get_map_map_vmodmap_rtrn_iterator(map_reply, map);
-    printf("reply %p, map %p, iter %p\n", map_reply, map, iter.data);
+
+    xcb_xkb_key_v_mod_map_iterator_t iter = xcb_xkb_get_map_map_vmodmap_rtrn_iterator(map_reply, &map);
+    printf("reply %p, map %p, iter %p\n", map_reply, &map, iter.data);
 
     xcb_keycode_t key = 0;
     while (iter.rem) {