[bug #61739] Outdated libffi dependency prevents AppImage launch under Ubuntu 20.04

[anonymous]

URL:
  <https://savannah.gnu.org/bugs/?61739>

                 Summary: Outdated libffi dependency prevents AppImage launch
under Ubuntu 20.04
                 Project: Denemo
            Submitted by: None
            Submitted on: Wed 29 Dec 2021 02:41:10 PM UTC
                Category: None
                Severity: 3 - Normal
              Item Group: None
                  Status: None
                 Privacy: Public
             Assigned to: None
         Originator Name: 
             Open/Closed: Open
         Discussion Lock: Any

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Details:

Running Ubuntu 20.04, I grabbed a copy of the AppImage, made it executable,
and was met with the error:

./bin/denemo: error while loading shared libraries: libffi.so.6: cannot open
shared object file: No such file or directory

It looks like the system libffi version (for Ubuntu 20.04 and presumably
later) is 7, and the AppImage depends on the system having version 6
installed.  Perhaps this dependency can/should be part of the AppImage itself?
 Not sure, as it looks like this might actually be part of a larger issue with
Ubuntu 20.04 shipping a broken installation of Python:

https://stackoverflow.com/questions/61875869/ubuntu-20-04-upgrade-python-missing-libffi-so-6

Regardless, I was able to get the AppImage to launch after manually
downloading and installing an outdated libffi6 package, but wanted to report
the problem anyway, in case it would be an easy fix for the package
maintainer(s).  :)




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