bug#6608: Menu bar not working

[Chong Yidong]

Jan Djärv <jan.h.d@swipnet.se> writes:

> I can for the life of me not reproduce this, neither on trunk, 100771
> or 100776.  Please give some more info, like compiler version,
> architecture (32 or 64-bit?), Gtk+ version?  Optimise flags to the
> compiler?  I assume you can repeat this with emacs -Q?  I don't have
> Kubuntu 10.04, but regular Ubuntu 10.04.

I see the problem on the emacs-23 branch as well as the trunk.

  In GNU Emacs 24.0.50.4 (i686-pc-linux-gnu, GTK+ Version 2.20.1)
    of 2010-07-11 on furry
  Windowing system distributor `The X.Org Foundation', version 11.0.10706000
  configured using `configure  'CC=gcc' 'CFLAGS=-g''

It does not happen on every click, but a majority of them.
Reverting the following change seems to remove the problem:

2010-07-03  Jan Djärv  <jan.h.d@swipnet.se>

  * xmenu.c (x_activate_menubar): Send Press/Release for Gtk+ to avoid
  grab on just Press (Bug#6499).