I'm getting an error message "Could not start the Dropbox daemon" for a Fedora 31 install.

When I try to run `dropbox start` with the latest linux client 85.4.155, I get this error, and neither dropbox nor the dropbox systray icon start successfully:

dropbox: load fq extension '/home/tedm/.dropbox-dist/dropbox-lnx.x86_64-85.4.155/linuxffi.gnu.compiled._linuxffi_gnu.cpython-37m-x86_64-linux-gnu.so'
Traceback (most recent call last):
File "dropbox/client/main.pyc", line 7919, in main
File "dropbox/client/main.pyc", line 7843, in main_startup
File "dropbox/client/main.pyc", line 942, in __init__
File "dropbox/sync_engine_boundary/factory.pyc", line 147, in make_default_file_system
File "dropbox/sync_engine_boundary/factory.pyc", line 99, in __init__
File "dropbox/sync_engine_boundary/factory.pyc", line 118, in _initialize_classes
File "dropbox/sync_engine/nucleus/classic_client/sync_engine.pyc", line 276, in <module>
File "dropbox/sync_engine/nucleus/classic_client/thin_adapter/in_proc.pyc", line 98, in <module>
File "dropbox/sync_engine/nucleus/classic_client/wrapped_thin_client.pyc", line 26, in <module>
File "dropbox/sync_engine/nucleus/thin_client/client.pyc", line 28, in <module>
File "dropbox/foundation/metrics/amp/remote_sink.pyc", line 10, in <module>
ImportError: libatomic.so.1: cannot open shared object file: No such file or directory
!! dropbox: fatal python exception:
['Traceback (most recent call last):\n', ' File "dropbox/client/main.pyc", line 7919, in main\n', ' File "dropbox/client/main.pyc", line 7843, in main_startup\n', ' File "dropbox/client/main.pyc", line 942, in __init__\n', ' File "dropbox/sync_engine_boundary/factory.pyc", line 147, in make_default_file_system\n', ' File "dropbox/sync_engine_boundary/factory.pyc", line 99, in __init__\n', ' File "dropbox/sync_engine_boundary/factory.pyc", line 118, in _initialize_classes\n', ' File "dropbox/sync_engine/nucleus/classic_client/sync_engine.pyc", line 276, in <module>\n', ' File "dropbox/sync_engine/nucleus/classic_client/thin_adapter/in_proc.pyc", line 98, in <module>\n', ' File "dropbox/sync_engine/nucleus/classic_client/wrapped_thin_client.pyc", line 26, in <module>\n', ' File "dropbox/sync_engine/nucleus/thin_client/client.pyc", line 28, in <module>\n', ' File "dropbox/foundation/metrics/amp/remote_sink.pyc", line 10, in <module>\n', 'ImportError: libatomic.so.1: cannot open shared object file: No such file or directory\n'] (error 3)
/usr/bin/dropbox:316: PyGTKDeprecationWarning: The keyword(s) "type, message_format" have been deprecated in favor of "message_type, text" respectively. See: https://wiki.gnome.org/PyGObject/InitializerDeprecations

UPDATE:

I can't seem to reply to my own message, so I'll write an update. I guess dropbox got a new dependency with version 85.4.155 - it now requires libatomic. I installed that and it all works.