users must match. No third-party EBL module are supported or allowed.
The only reason there are separate modules is to not have the code for
all architectures in all the binaries.
+
+- although the public libraries (libasm, libdw) have a stable API and are
+ backwards ABI compatible they, and the elfutils tools, do depend on each
+ others internals, and on internals of libelf to provide their interfaces.
+ So they should always be upgraded in lockstep when packaging the tools
+ and libraries separately. For one example of how to do that, see the
+ config/elfutils.spec.