bug#9754: Issue with Emacs 23.4

[Ken Brown]

On 5/16/2012 9:19 PM, Stefan Monnier wrote:
> > > At least it doesn't seem "obviously correct" to me: what if the user
> > > opens up an X frame after starting "emacs -nw"?
> > The hang arises when emacs is started without an X server present or at
> > least with DISPLAY not set.  I don't see how a user would be able to
> > open an X frame at a later point in time in that situation (or
> > reasonable expect he might be able to).
>
> Easy: M-x make-frame-on-display.
> Or start an emacs server and then connect to the server from an
> emacsclient with a DISPLAY set (which ends up calling
> make-frame-on-display as well, of course).

So maybe the test

  if (inhibit_window_system || !display_arg)

in my patch should be replaced by

  if (!x_in_use)

Ken