Comment 19 for bug 1568459

The unison binary from 18.04 (unison-2.48.4-gtk) does not run on my 20.04 machine:

'''
Fatal error

Uncaught exception Failure("input_value: ill-formed message")
Raised at file "/build/unison-Y9EcQW/unison-2.48.4/lwt/lwt.ml", line 126, characters 16-23
Called from file "/build/unison-Y9EcQW/unison-2.48.4/lwt/generic/lwt_unix_impl.ml", line 102, characters 8-23
Called from file "/build/unison-Y9EcQW/unison-2.48.4/update.ml" (inlined), line 2096, characters 2-69
Called from file "/build/unison-Y9EcQW/unison-2.48.4/uigtk2.ml", line 3372, characters 20-75
Called from file "/build/unison-Y9EcQW/unison-2.48.4/uigtk2.ml", line 3381, characters 16-32
Called from file "/build/unison-Y9EcQW/unison-2.48.4/uigtk2.ml", line 156, characters 18-22
Called from file "/build/unison-Y9EcQW/unison-2.48.4/uigtk2.ml", line 3919, characters 4-37
Called from file "/build/unison-Y9EcQW/unison-2.48.4/uigtk2.ml", line 4276, characters 4-16
'''

Nor does the newer version run on 18.04:

'''
unison-2.48.4-gtk: /lib/x86_64-linux-gnu/libm.so.6: version `GLIBC_2.29' not found (required by unison-2.48.4-gtk)
unison-2.48.4-gtk: /lib/x86_64-linux-gnu/libc.so.6: version `GLIBC_2.28' not found (required by unison-2.48.4-gtk)
'''

Any ideas for a workaround?