I've made append-ldflags throw a warning when libraries are passed through it
to link them in.
The reason is that LDFLAGS should _not_ be used for libraries, as it has to be
positioned before the list of objects to link together, while libraries should
This mistake in commandline is what causes as-needed to either fail or not
apply at all (if LDFLAGS are put at the end).
Please fix your package not to pass libraries through LDFLAGS.