C_SOURCES = $(wildcard *.c)
ASM_SOURCES = $(wildcard *.s)
HEADERS = $(wildcard headers/*.h)
#OBJECTS = loader.o ${C_SOURCES:.c=.o}
#OBJECTS = ${C_SOURCES:.c=.o ASM_SOURCES:.s=.o}
OBJECTS =  ${ASM_SOURCES:.s=.o} ${C_SOURCES:.c=.o}
#OBJECTS = ${wildcard *.o}
CC = i686-elf-gcc
CFLAGS = -masm=intel -m32 -ffreestanding -fno-builtin -fno-stack-protector \
	 -isystem=/usr/include -Wall -Wextra -Werror -c
LDFLAGS = -T link.ld -melf_i386
AS = nasm
ASFLAGS = -f elf32

everything: all
	rm -f os.iso
	cp kernel.elf iso/boot/kernel.elf
	genisoimage -R                                  \
		    -b boot/grub/stage2_eltorito        \
		    -no-emul-boot                       \
		    -A os                               \
		    -input-charset utf8                 \
		    -quiet                              \
		    -boot-info-table                    \
		    -o os.iso                           \
		    iso

all: kernel.elf

kernel.elf: $(OBJECTS)
	i686-elf-ld $(LDFLAGS) $(OBJECTS) -o kernel.elf

os.iso: kernel.elf
	cp kernel.elf iso/boot/kernel.elf
	genisoimage -R					\
		    -b boot/grub/stage2_eltorito	\
		    -no-emul-boot			\
		    -A os				\
		    -input-charset utf8			\
	            -quiet				\
		    -boot-info-table			\
		    -o os.iso				\
		    iso

%.o: %.c ${HEADERS}
	$(CC) $(CFLAGS) $< -o $@
%.o: %.s
	$(AS) $(ASFLAGS) $< -o $@


clean:
	rm *.o