Add support of choosing binary based on standard lib c library.

There are few standard lib c libraries, musl and glibc.
BInary files builded on one linux system e.g. ubuntu doesn't compatible with another system, e.g. Alpine Linux.
I would like to have opportunity to choose binary file based on standard lib c library.
It will be very useful for Linux systems.

What do you think about this feature?

The issue names no files, tests, or entry points. Start by mapping the repository's binary-selection flow and Linux packaging assumptions; done should be a settled libc-selection design with tests covering musl and glibc.

Written by the indexing model from the issue text.