version_soname_copy.mk: handling of shared library versioning schemes.

this file is covered by COPYING.SOFORT.

install-soname: install-lib cp $(SHARED_LIB) $(DESTDIR)$(LIBDIR)/$(DSO_SONAME)

$(SHARED_SONAME): $(SHARED_LIB) cp $(SHARED_LIB) $(SHARED_SONAME)