ifneq (${KERNELRELEASE},)
# KERNELRELEASE defined: we are being compiled as part of the Kernel
       obj-m := vga_ball.o
else

# We are being compiled as a module: use the Kernel build system

	KERNEL_SOURCE := /usr/src/linux-headers-$(shell uname -r)
        PWD := $(shell pwd)

default: module 
module:
	${MAKE} -C ${KERNEL_SOURCE} SUBDIRS=${PWD} modules

clean:
	${MAKE} -C ${KERNEL_SOURCE} SUBDIRS=${PWD} clean
	${RM} 
endif
