#
# Makefile for building the dopanic module on Linux 2.4 
#

MOD=dopanic
MOD_CONF= $(MOD:%=%.conf)
RHVER=RH7.1
KVER=2.6.0
KTAG=
KSRC=/usr/src/linux
# Note: /usr/src/linux should point to /usr/src/linux-$(KVER)$(KTAG).
# The KVER is only used here for "make install".

CC=gcc
#Use the cflags that shows all warnings or the one that doesn't.
#CFLAGS = -O2 -Wall -DLINUX_DEBUG
CFLAGS = -O2  

#Note: Use the following to build a driver with no versioning.
#K_CFLAGS = -D__KERNEL__  -DMODULE -D__SMP__  -DCONFIG_X86_LOCAL_APIC -D__NO_VERSION__ 
#
#The K_CFLAGS is used to build on all RedHat systems. 
#ADDK_CFLAGS is used only when building on pre RedHat 7.0 systems.
#
K_CFLAGS = -D__KERNEL__ -DMODULE  -D__SMP__ -DCONFIG_X86_LOCAL_APIC -DMODULES 
ADDK_CFLAGS =  -DMODVERSIONS  -include /usr/include/linux/modversions.h

CPPFLAGS = -I. -DLINUX -I/usr/src/linux/include
	
K_VERSION:=$(shell uname -r | cut -c1-3 | sed 's/2\.[56]/2\.6/') 
ifeq ($(K_VERSION), 2.6) 
	TARGET = dopanic.ko 
	# CFILES = dopanic.c 
	# dopanic-objs := $(CFILES:.c=.o) 
	obj-m += dopanic.o 
	make -C $(KSRC) V=1 SUBDIRS=$(shell pwd) modules 
endif

#List all the relevant files here
OBJS = 	dopanic.o 

all: $(MOD) 

$(MOD): $(OBJS)
	$(LD) -r -o $(MOD) $(OBJS) 

%.o:	%.c
	if [ "$(RHVER)" = "PRE-7.0" ]; \
	then \
		$(CC) -c $(CFLAGS) $(CPPFLAGS) $(K_CFLAGS) $(ADDK_CFLAGS) -o $@ $< ; \
	else \
		$(CC) -c $(CFLAGS) $(CPPFLAGS) $(K_CFLAGS)  -o $@ $< ; \
	fi

install: $(MOD)
	cp $(MOD) /lib/modules/$(KVER)$(KTAG)/kernel/arch/i386/kernel

clean:
	rm -f $(OBJS) $(MOD) 

clobber:
	rm -f $(OBJS) $(MOD)