#NOTE:	CPP refers to the C pre-processor, CXX referes to C++ compiler.
KERNEL_LOCATION	:=	/usr/src/linux
# Sub directories containing files to make.
SRCDIR		:=	dasm eah fifo main pci pll qduc tsp
# C source files
SRC		:=	version.c

OBJS		:=	$(foreach DIR, $(SRCDIR), $(DIR).o)
PKGS		:=	$(foreach DIR, $(SRCDIR), $(DIR).o)
OBJS		+=	$(SRCXX:.cpp=.o)
OBJS		+=	$(SRC:.c=.o)

TOPDIR		:=	$(shell /bin/pwd)
USERNAME	:=	$(shell /usr/bin/whoami)
DATE		:=	$(shell /bin/date)

KERNEL_HEADERS	:=	$(KERNEL_LOCATION)/include

include $(KERNEL_LOCATION)/.config

CPPFLAGS	:=	-I$(TOPDIR) -I$(KERNEL_HEADERS) -D__KERNEL__ -DMODULE \
			-DEXPORT_SYMTAB -DSED_USERNAME="\"$(USERNAME)\"" \
			-DSED_DATE="\"$(DATE)\"" -D__NO_VERSION__
ifdef CONFIG_SMP
	CPPFLAGS += -D__SMP__ -DSMP
endif

CC		:=	gcc
LD		:=	ld
CFLAGS		:=	-Wall -O2 -finline-functions -pipe



EXE		:=	spflsmdd.o

export CC CPPFLAGS CFLAGS CXXFLAGS TOPDIR LD

%.d: %.c
	set -e; $(CC) -MM $(CPPFLAGS) $< \
	| sed 's/\($*\)\.o[ :]*/\1.o $@ : /g' > $@; \
	[ -s $@ ] || rm -f $@

.PHONY : all
all: $(EXE)

.PHONY : doc
doc: Doxyfile
	@echo "Generating documents using doxygen..."
	@doxygen $<


DEPENDS		= $(SRC:.c=.d)

ifneq ($(SRC), )
include $(DEPENDS)
endif

$(EXE): $(OBJS)
	$(LD) -r -o $@ $^

dasm.o: FORCE
	$(MAKE) -C dasm

eah.o: FORCE
	$(MAKE) -C eah

fifo.o: FORCE
	$(MAKE) -C fifo

main.o: FORCE
	$(MAKE) -C main

pci.o: FORCE
	$(MAKE) -C pci

pll.o: FORCE
	$(MAKE) -C pll

qduc.o: FORCE
	$(MAKE) -C qduc

tsp.o: FORCE
	$(MAKE) -C tsp

version.o: FORCE

FORCE:

.PHONY : clean
clean: neat
	rm -rf $(EXE) $(OBJS)

.PHONY : neat
neat:
	rm -f $(OBJS) $(EXE)
	rm -f $(DEPENDS)
	rm -f core
	@for pkg in $(SRCDIR); do \
		$(MAKE) -C $$pkg clean; \
	done;
	find * -type f | grep '~' | xargs rm -f

.PHONY : dep
dep: $(DEPENDS)
	@for pkg in $(SRCDIR); do \
		$(MAKE) -C $$pkg dep; \
	done;