another panel update

[Brian J. Tarricone]

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Jasper Huijsmans wrote:
> hey all,
> 
> fyi, from the commit log:
> 
> ===
> * remove builtin launcher
> * replace with new launcher (backwards compatible)
> * remove popup position global option
> * other stuff (it's a pretty big change, so I'm sure i forgot something ;-)
> 
> Please tell me if it breaks anything.

Unfortunately it breaks *everything* here =/.  It just hangs on startup;
no window or anything.  strace shows its in a loop polling fd 3 for
data, which it does seem to get every now and then, but goes back into
looping.  The main window never appears.

I moved aside ~/.config/xfce4/panel to get a fresh start, but the same
thing happened.

Backtrace isn't all that useful:

Program received signal SIGINT, Interrupt.
[Switching to Thread -1218603344 (LWP 1595)]
0xffffe410 in __kernel_vsyscall ()
(gdb) bt
#0  0xffffe410 in __kernel_vsyscall ()
#1  0xb77ad72d in poll () from /lib/libc.so.6
#2  0xb79a6246 in g_main_context_acquire () from /usr/lib/libglib-2.0.so.0
#3  0xb79a650e in g_main_loop_run () from /usr/lib/libglib-2.0.so.0
#4  0xb7dda60c in gtk_main () from /usr/lib/libgtk-x11-2.0.so.0
#5  0x080549fa in main (argc=1, argv=0xbfffed64) at main.c:487

	-brian
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