So-called "automagic" behaviour is considered unhelpful by
distributions. A user may unintentionally build Moonlight with VDPAU
support simply because they had that library installed, only for the
whole application to break when they uninstall the library later. This
could happen on any distribution, but it should especially be avoided on
source-based distributions, where the user would not expect the package
manager to encounter such issues.
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