This project provides a compatibility library libudev.so.0, for systems which only have libudev.so.1.
With libudev.so.1 a few functions have been removed from the ABI. Those have been implemented (as stubs) in this project.
Other API and ABI is implicitly forwarded to libudev.so.1, which the shim directly links to. Since the shim itself does not use anything from libudev.so.1, one needs to ensure the linker does not discard it. For that the "-Wl,--no-as-needed -ludev" flag is used.