Debug glibmm-CRITICAL

Emil Nowak via gtkmm-list <[email protected]> Tue, 15 Dec 2020 07:31:05 +0100
Newsgroups gmane.comp.gnome.gtkmm
Message-ID <20201215073105.640e0763@galeon>
Hello,
In my application from time to time I get "glibmm-CRITICAL" errors. They are
displayed on console. 
I wonder how can I debug them. 
So far I found that in glib there is env variable "G_DEBUG=fatal-criticals"
for that in Glib, but seems it doesn't affect Glibmm. 

Is there anything similar in glibmm/gtkmm

I'm using:
Glibmm: 2.64.2
Gtkmm: 3.24.2