-$(LIBRARY): $(outdir)/config.h $(O_FILES)
+$(O_FILES): $(outdir)/config.hh
+
+$(LIBRARY): $(O_FILES)
$(AR) $(ARFLAGS) $@ $(O_FILES)
- # thanks to Nelson Beebe for this trick.
+# thanks to Nelson Beebe for this trick.
$(RANLIB) $@ || $(AR) ts $@ || true