Debug Glib and GTK (Lepton EDA Reference Manual 1.9.18)

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#### 11.1.3 Debug C code based on Glib and GTK

Sometimes you may encounter critical warnings by `glib` or `gtk`, which look like this:

    GLib-GObject-CRITICAL **: ...

In order to debug them, you need to know the way of reproducing them. Then, you can use the following command to fiddle with them in `gdb`:

    G_DEBUG=fatal_criticals gdb --args \
      guile -s /usr/local/bin/lepton-schematic