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Date: Thu, 2 Mar 2017 05:03:41 +0100 (CET)
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To: geda-user AT delorie DOT com
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From: gedau AT igor2 DOT repo DOT hu
Subject: [geda-user] [dev] [pcb] bugreport: segfault
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Reply-To: geda-user AT delorie DOT com

Hi pcb devs,

1. configuer for command window
2. open command window with ':'
3. close command window with the window manager, NOT with the close button
4. open command window wit ':'
5. segfault

For referece: fixed in pcb-rnd r7331.

Related: the gtk HID has a few of these: gtk signal conected to a 
signal handler callback with differet signature (e.g. not enough 
parameters, sometimes (void) function called with (GtkWidget *, 
gpointer)).

It is an undefined behavior in C99 (6.5.2.2, paragraph 6).

I believe this is dangerous practice - I've already fixed a few of these 
in pcb-rnd, I recommend revising the signal handlers in mainline too.

Regards,

Igor2