CHOWN   = sudo chown
CHROOT  = sudo chroot
CP      = cp
GMAKE   = make
INSTALL = install
MKDIR   = mkdir
RM      = rm
SED     = sed

ARCH = x86_64

SRC != pwd
BUILDDIR = $(SRC)/build
SCRIPTS  = $(SRC)/scripts
SYSROOT  = $(SRC)/sysroot

SYSROOT_TARGETS = \
	$(SYSROOT)/bin/busybox    \
	$(SYSROOT)/etc/group      \
	$(SYSROOT)/etc/hostname   \
	$(SYSROOT)/etc/hosts      \
	$(SYSROOT)/etc/inittab    \
	$(SYSROOT)/etc/issue      \
	$(SYSROOT)/etc/passwd     \
	$(SYSROOT)/etc/shells     \
	$(SYSROOT)/usr/lib/libc.a

all: fhs $(SYSROOT_TARGETS)
	$(CHOWN) -R user:user $(SYSROOT)

clean:
	$(RM) -rf $(BUILDDIR) $(SYSROOT) musl-gcc.specs image.iso

include make/busybox.mk
include make/etc.mk
include make/fhs.mk
include make/musl.mk

chroot: all
	$(CHROOT) $(SYSROOT) /bin/sh

run: image.iso
	qemu-system-x86_64 -m 2G -cdrom image.iso

image.iso: $(SYSROOT)/boot/grub/grub.cfg $(SYSROOT)/boot/bzImage all
	grub-mkrescue $(SYSROOT) -o image.iso

$(SYSROOT)/boot/grub/grub.cfg: boot/grub/grub.cfg fhs
	$(INSTALL) -d $(SYSROOT)/boot/grub
	cp boot/grub/grub.cfg $(SYSROOT)/boot/grub/grub.cfg

$(SYSROOT)/boot/bzImage: boot/bzImage fhs
	cp boot/bzImage $(SYSROOT)/boot/bzImage