Get rid of repeated building load.o

Author: nobu

common.mk

@@ -1130,7 +1130,7 @@ $(NEWLINE_C): $(srcdir)/enc/trans/newline.trans $(tooldir)/transcode-tblgen.rb
 	$(Q) $(BASERUBY) "$(tooldir)/transcode-tblgen.rb" -vo $@ $(srcdir)/enc/trans/newline.trans
 enc/trans/newline.$(OBJEXT): $(NEWLINE_C)
 
-verconf.h: $(srcdir)/template/verconf.h.tmpl $(tooldir)/generic_erb.rb $(RBCONFIG)
+verconf.h: $(srcdir)/template/verconf.h.tmpl $(tooldir)/generic_erb.rb rbconfig.rb
 	$(ECHO) creating $@
 	$(Q) $(BOOTSTRAPRUBY) "$(tooldir)/generic_erb.rb" -o $@ $(srcdir)/template/verconf.h.tmpl