Optimize makefile

example/Makefile

@@ -21,4 +21,4 @@ all:
 
 .PHONY: clean
 clean:
-	rm -f *.o ${TARGET}
+	rm -f *.o ${TARGET} ${TARGET}_epoll

lib/Makefile

@@ -376,7 +376,7 @@ all: libfstack.a
 # externally available.
 #
 libfstack.a: machine_includes ff_api.symlist ${MHEADERS} ${MSRCS} ${HOST_OBJS} ${ASM_OBJS} ${OBJS}
-	${LD} -r -o $*.ro ${ASM_OBJS} ${OBJS}
+	${LD} -d -r -o $*.ro ${ASM_OBJS} ${OBJS}
 	nm $*.ro  | grep -v ' U ' | cut -d ' ' -f 3 > $*_localize_list.tmp
 	objcopy --localize-symbols=$*_localize_list.tmp $*.ro 
 	rm $*_localize_list.tmp