A lot of bloat had been accumulated through updates (e.g. with linphone
migrating from Gtk to Qt, or linphone being split to liblinphone &
linphone-desktop).
Method: Through trial and error. Delete all dependencies, try to build, try to
run, reintroduce missing dependencies.
I have tested everything I could, but it is possible that some optional
features have been silently disabled with dependencies not being found now.
(Codecs, encryption schemes, etc...)
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