Where an ordinary library might include ‘$(LIBOBJS)’ or ‘$(ALLOCA)’ (see LIBOBJS), a libtool library must use ‘$(LTLIBOBJS)’ or ‘$(LTALLOCA)’. This is required because the object files that libtool operates on do not necessarily end in .o.
Nowadays, the computation of
performed automatically by Autoconf (see
LIBOBJS in The Autoconf Manual).