Remove GTK2 support (GTK2 reached its end-of-life in 2020)
Alternatively, please consider depending on gtk2-compat at build-time and then gtk3 at run-time.
I prepared this solution in a separate merge request.
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Alternatively, please consider depending on gtk2-compat at build-time and then gtk3 at run-time.
I prepared this solution in a separate merge request.