訊息如下

make -C /lib/modules/2.6.28-13-generic/build SUBDIRS=/home/dragon/work/RT25USB-SRC-V2.0.8.0 modules
make[1]: Entering directory `/usr/src/linux-headers-2.6.28-13-generic'
scripts/Makefile.build:46: *** CFLAGS was changed in "/home/dragon/work/RT25USB-SRC-V2.0.8.0/Makefile". Fix it to use EXTRA_CFLAGS. Stop.
make[1]: *** [_module_/home/dragon/work/RT25USB-SRC-V2.0.8.0] Error 2
make[1]: Leaving directory `/usr/src/linux-headers-2.6.28-13-generic'
make: *** [all] Error 2



該Makefile起頭如下

WFLAGS := -Wall -Wstrict-prototypes -Wno-trigraphs

## Comment/uncomment the following line to enable/disable debugging
#CFLAGS += -DDBG

CFLAGS += $(WFLAGS)

obj-m := rt2570.o

rt2570-objs := rtusb_main.o mlme.o rtusb_bulk.o connect.o sync.o rtusb_init.o rtmp_tkip.o wpa.o rtmp_wep.o rtusb_info.o assoc.o auth.o auth_rsp.o md5.o rtusb_io.o sanity.o rtusb_data.o

## Configuration files on SuSE
#NDDIR=/etc/sysconfig/network
#MOD_CONF=/etc/modprobe.d/module-renames

## NDDIR/ifcfg-rausb0
ND_CONF=/etc/sysconfig/network-scripts/ifcfg-rausb0



請問各位先進, 此錯誤訊息該從何處著手解決呢？

感謝