Due to problems of 32/64 bit ints and changes in png library media-libs/libpng-1.4 crashes x11-libs/gtk+ applications. Patch (I haven't tested yet) is attached to the bug report.
> Patch (I haven't tested yet) is attached to the bug report. > Upstream bug report
For 2.20.1 from overlay there is fixed version bump in my fork (git@github.com:uzytkownik/gnome-overlay.git) in review branch.
*** This bug has been marked as a duplicate of bug 319967 ***