bug#19547: Patch for this bug

[Thierry Volpiatto <thierry.volpiatto@gmail.com>]

Eli Zaretskii <eliz@gnu.org> writes:

> In addition to using 'break', you need to initialize ignore_event with
> some value, otherwise it will hold garbage, which could accidentally
> be one of the values you want to filter.  Alternatively, add a
> 'default' case to the switch.

Is Qnil ok as default value ?

> I'd suggest to use Flist instead, it should be closer to Lisp (if you
> want to do this from C).

Didn't succeed with Flist:

keyboard.c:11842:5: error: too many arguments to function ‘Flist’
     = Flist (Qfocus_in, Qfocus_out, Qhelp, Qiconify, Qdeiconify, Qselection_request)
     ^

>> I wondered also if instead the variable could be feeded from lisp as
>> suggested by Eli, but I don't know yet where is the good place for this
>> and how.
>
> Something like simple.el should be fine.

I would prefer setting the variable from lisp.
ok for simple.el, but what is the recommended way for setting it (I
don't think throwing a (setq while-no-input-ignore-events [...])
anywhere in simple.el is the way to do) ?

Also on my laptop with gcc version 4.8.4 (Ubuntu 4.8.4-2ubuntu1~14.04.3)
I have no warnings, but on an other computer with gcc version 5.4.0
20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.4), I have these warnings (but it
compiled fine):

keyboard.c: In function ‘kbd_buffer_store_buffered_event’:
keyboard.c:3572:3: warning: enumeration value ‘NO_EVENT’ not handled in switch [-Wswitch]
   switch (event->kind)
   ^
keyboard.c:3572:3: warning: enumeration value ‘ASCII_KEYSTROKE_EVENT’ not handled in switch [-Wswitch]
keyboard.c:3572:3: warning: enumeration value ‘MULTIBYTE_CHAR_KEYSTROKE_EVENT’ not handled in switch [-Wswitch]
keyboard.c:3572:3: warning: enumeration value ‘NON_ASCII_KEYSTROKE_EVENT’ not handled in switch [-Wswitch]
keyboard.c:3572:3: warning: enumeration value ‘TIMER_EVENT’ not handled in switch [-Wswitch]
keyboard.c:3572:3: warning: enumeration value ‘MOUSE_CLICK_EVENT’ not handled in switch [-Wswitch]
keyboard.c:3572:3: warning: enumeration value ‘WHEEL_EVENT’ not handled in switch [-Wswitch]
keyboard.c:3572:3: warning: enumeration value ‘HORIZ_WHEEL_EVENT’ not handled in switch [-Wswitch]
keyboard.c:3572:3: warning: enumeration value ‘SCROLL_BAR_CLICK_EVENT’ not handled in switch [-Wswitch]
keyboard.c:3572:3: warning: enumeration value ‘HORIZONTAL_SCROLL_BAR_CLICK_EVENT’ not handled in switch [-Wswitch]
keyboard.c:3572:3: warning: enumeration value ‘SELECTION_CLEAR_EVENT’ not handled in switch [-Wswitch]
keyboard.c:3572:3: warning: enumeration value ‘BUFFER_SWITCH_EVENT’ not handled in switch [-Wswitch]
keyboard.c:3572:3: warning: enumeration value ‘DELETE_WINDOW_EVENT’ not handled in switch [-Wswitch]
keyboard.c:3572:3: warning: enumeration value ‘MENU_BAR_EVENT’ not handled in switch [-Wswitch]
keyboard.c:3572:3: warning: enumeration value ‘MENU_BAR_ACTIVATE_EVENT’ not handled in switch [-Wswitch]
keyboard.c:3572:3: warning: enumeration value ‘DRAG_N_DROP_EVENT’ not handled in switch [-Wswitch]
keyboard.c:3572:3: warning: enumeration value ‘USER_SIGNAL_EVENT’ not handled in switch [-Wswitch]
keyboard.c:3572:3: warning: enumeration value ‘TOOL_BAR_EVENT’ not handled in switch [-Wswitch]
keyboard.c:3572:3: warning: enumeration value ‘SELECT_WINDOW_EVENT’ not handled in switch [-Wswitch]
keyboard.c:3572:3: warning: enumeration value ‘SAVE_SESSION_EVENT’ not handled in switch [-Wswitch]
keyboard.c:3572:3: warning: enumeration value ‘GPM_CLICK_EVENT’ not handled in switch [-Wswitch]
keyboard.c:3572:3: warning: enumeration value ‘DBUS_EVENT’ not handled in switch [-Wswitch]
keyboard.c:3572:3: warning: enumeration value ‘CONFIG_CHANGED_EVENT’ not handled in switch [-Wswitch]
keyboard.c:3572:3: warning: enumeration value ‘FILE_NOTIFY_EVENT’ not handled in switch [-Wswitch]
keyboard.c:3585:11: warning: ‘ignore_event’ may be used uninitialized in this function [-Wmaybe-uninitialized]
       && !NILP (Fmemq (ignore_event, Vwhile_no_input_ignore_events)))
           ^

What can I do to avoid this ? Or should I just ignore this ?

Thanks.

-- 
Thierry