Apply workaround for avoiding Lablgtk2's Gdk.GC.get_values and GDraw.drawable#set_line_attributes #6
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On Mac (macOS Sierra), the function
Gdk.GC.get_valuesof Lablgtk 2.18.5 orgdk_gc_get_values()of GTK+ 2.24.32 does not seem to work correctly. It seems thatml_gdk_gc_get_values()inml_gdk.cof Lablgtk 2.18.5 returns an unacceptable (maybe uninitialized) set of values which causes exceptions. Although I have not seen any trouble of this kind on ubuntu machines, prooftree on Mac did not work without applying some modification toml_gdk.cof Lablgtk2.I'd like to offer another way to avoid the problem. The patch make prooftree avoid using
Gdk.GC.get_valuesandGDraw.drawable#set_line_attributesof Lablgtk2. The workaround looks fine for me.