VERSION=$(shell cat VERSION)

ARCH := $(patsubst i%86,i386,$(shell uname -m))
ARCH := $(patsubst sparc%,sparc,$(ARCH))

SUBDIRS = nash grubby livecd isolinux

#ifeq ($(ARCH),sparc)
#SUBDIRS += loadinitrd
#endif

#ifeq ($(ARCH),i386)
#SUBDIRS += loadinitrd
#endif

OPTCFLAGS = $(CFLAGS)
LINUX_SOURCES=/usr/src/linux

mandir = usr/share/man
docdir = usr/share/doc/mkinitrd-$(VERSION)

all:
	for n in $(SUBDIRS); do make -C $$n; done
	# use linux sources from default path, not the installed kernel
	ln -snf $(LINUX_SOURCES) klibc/linux
	make -C klibc
	make -C busybox defconfig
	make -C busybox
	sed 's:%VERSIONTAG%:$(VERSION):' < mkinitrd.in > mkinitrd

test:	all
	for i in grubby busybox klibc; do make -C $$i test; done

install:
	for n in $(SUBDIRS); do make -C $$n install DESTDIR=$(DESTDIR); done
	for i in etc/conf.d sbin usr/sbin $(mandir)/man8 $(docdir)/busybox $(docdir)/klibc; do \
		if [ ! -d $(DESTDIR)/$$i ]; then \
			mkdir -p $(DESTDIR)/$$i; \
		fi; \
	done
	install -m755 mkinitrd $(DESTDIR)/sbin/mkinitrd
	install -m755 installkernel $(DESTDIR)/sbin/installkernel
	chmod 755 $(DESTDIR)/sbin/mkinitrd
	install -m644 mkinitrd.8 $(DESTDIR)/$(mandir)/man8/mkinitrd.8
	install -m644 mkinitrd.confd $(DESTDIR)/etc/conf.d/mkinitrd
	install -m755 busybox/busybox $(DESTDIR)/usr/sbin/busybox.mkinitrd
	cat busybox/LICENSE | gzip -9 > $(DESTDIR)/$(docdir)/busybox/LICENSE.gz
	cat busybox/README | gzip -9 > $(DESTDIR)/$(docdir)/busybox/README.gz
	cat busybox/TODO | gzip -9 > $(DESTDIR)/$(docdir)/busybox/TODO.gz
	install -m755 klibc/usr/kinit/run-init/static/run-init $(DESTDIR)/usr/sbin/run-init.mkinitrd
	cat klibc/usr/klibc/README | gzip -9 > $(DESTDIR)/$(docdir)/klibc/README.gz
	cat klibc/usr/klibc/LICENSE | gzip -9 > $(DESTDIR)/$(docdir)/klibc/LICENSE.gz

clean:
	for n in $(SUBDIRS) busybox klibc isolinux; do make -C $$n clean; done
	rm -f mkinitrd
	rm klibc/linux

mrproper: clean
	make -C busybox mrproper
	make -C klibc mrproper