GNU Hello is GNU's example project for best practices, coding standards, internationalization, configuration automation, etc.
Is there a similar project that targets libraries? I realize GNU Hello can be used in that way, but would I be missing some library-specific practices?
I've also searched for good tutorials on this topic, and the Program Library HOWTO seems to be the most appropriate one out there. Do you have any other suggestions?
There is a project called libabc: shared library skeleton created by Lennart Poettering:
To make things easy we have put together an example skeleton library we dubbed libabc, whose README file includes all our points in terse form.