I have been looking for ways to use shared libraries in packages in CRAN
and be able to write tests for them.
When installing packages that depend on shared libraries, if a library is
missing from the system we often get a nice error message complaining about
the missing library during installation and listing what to install on
different linux builds, what to install on windows and mac. Similarly, how
can I fail during installation if a required shared library is missing and
show a warning to the users directing them to install it?
More importantly, if I want to write tests and examples for the package,
how do I tell CRAN that it needs to have the shared library?
Cheers,
Ogan
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