File fix-mouse.patch of Package ncurses

--- a/ncurses/base/lib_mouse.c
+++ b/ncurses/base/lib_mouse.c
@@ -892,40 +892,43 @@ _nc_mouse_event(SCREEN *sp)
 #if USE_SYSMOUSE
     case M_SYSMOUSE:
 	if (sp->_sysmouse_head < sp->_sysmouse_tail) {
+	    *eventp = sp->_sysmouse_fifo[sp->_sysmouse_head];
 	    /*
 	     * Point the fifo-head to the next possible location.  If there
 	     * are none, reset the indices.  This may be interrupted by the
 	     * signal handler, doing essentially the same reset.
 	     */
 	    sp->_sysmouse_head += 1;
 	    if (sp->_sysmouse_head == sp->_sysmouse_tail) {
 		sp->_sysmouse_tail = 0;
 		sp->_sysmouse_head = 0;
 	    }
 
 	    /* bump the next-free pointer into the circular list */
 	    sp->_mouse_write++;
 	    result = TRUE;
 	}
 	break;
 #endif /* USE_SYSMOUSE */
 
 #if USE_TERM_DRIVER
     case M_TERM_DRIVER:
 	while (sp->_drv_mouse_head < sp->_drv_mouse_tail) {
+	    *eventp = sp->_drv_mouse_fifo[sp->_drv_mouse_head];
 	    /*
 	     * Point the fifo-head to the next possible location.  If there
 	     * are none, reset the indices.
 	     */
 	    sp->_drv_mouse_head += 1;
 	    if (sp->_drv_mouse_head == sp->_drv_mouse_tail) {
 		sp->_drv_mouse_tail = 0;
 		sp->_drv_mouse_head = 0;
 	    }
 
 	    /* bump the next-free pointer into the circular list */
 	    sp->_mouse_write++;
+	    eventp = EventAt(sp, sp->_mouse_write);
 	    result = TRUE;
 	}
 	break;
 #endif
@@ -1746,4 +1749,5 @@ _nc_mouse_parse(SCREEN *sp, int runcount)
      * with.  The same issue applies to first_valid and _mouse_read.
      */
-    while (!ValidEvent(EventAt(sp, sp->_mouse_read))) {
+    while (sp->_mouse_read != sp->_mouse_write &&
+	   !ValidEvent(EventAt(sp, sp->_mouse_read))) {
 	sp->_mouse_read++;
     }