Randomly crash at startup with that same backtrace since Ubuntu 15.10. The problem is the xtext widget is not yet realized so xtext->fontsize is 0 and a div-by-0 happens.
I didn't understand why the xtext widget is not yet realized when its parent GtkWindow is already realized and gets the focus-in event. Also, why did it ever worked before?
In any case, attached patch works perfectly for me.
Randomly crash at startup with that same backtrace since Ubuntu 15.10. The problem is the xtext widget is not yet realized so xtext->fontsize is 0 and a div-by-0 happens.
I didn't understand why the xtext widget is not yet realized when its parent GtkWindow is already realized and gets the focus-in event. Also, why did it ever worked before?
In any case, attached patch works perfectly for me.