Makefile with flags

[amitbern]

Hi,
Small question regarding makefiles:
I want to add a new target: release
that will compile my driver with additional flag
(EXTRA_CFLAGS += -Drelease_flag)

how can i do that on this example:

KERNELPATH := /home/kernel-2.6.24/

.PHONY: all clean
EXTRA_CFLAGS += -Werror
EXTRA_CFLAGS += -I$(src)/dir1
EXTRA_CFLAGS += -I$(src)/dir2

all: modules
obj-m := driver.o
driver-objs := file1.o
driver-objs += file2.o

modules:
make -C $(KERNELPATH) M=$(PWD) modules

clean:
make -C $(KERNELPATH) M=$(PWD) clean

thanks

[prasadae31]

This is usually how I do it. (Note that I might not be doing it in a perfect way.

make -C $(KERNELPATH) M=$(PWD) CFLAGS_MODULE="-Drelease_flag" modules