updated for version 7.3.864

Problem:    Can't build without the mouse feature.
Solution:   Add an #ifdef. (Ike Devolder)

src/misc1.c

@@ -3405,7 +3405,9 @@ get_keystroke()
 	    n = TO_SPECIAL(buf[1], buf[2]);
 	    if (buf[1] == KS_MODIFIER
 		    || n == K_IGNORE
+#ifdef FEAT_MOUSE
 		    || (is_mouse_key(n) && n != K_LEFTMOUSE)
+#endif
 #ifdef FEAT_GUI
 		    || n == K_VER_SCROLLBAR
 		    || n == K_HOR_SCROLLBAR

src/version.c

@@ -728,6 +728,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    864,
 /**/
     863,
 /**/