Building a multiboot 1 compatible executable

src/kernel/Makefile

@@ -0,0 +1,19 @@
+ifeq ($(MITTOS64),)
+$(error Unsupported environment! See README)
+endif
+
+CC := x86_64-elf-gcc
+
+SRC := $(wildcard **/*.[cS])
+OBJ := $(patsubst %, %.o, $(basename $(SRC)))
+
+CFLAGS ?= -Wall -Wextra
+CFLAGS += -ffreestanding
+
+all: kernel
+
+kernel: LDFLAGS += -n -nostdlib -T Link.ld
+kernel: $(OBJ)
+	$(LINK.c) $^ -o $@
+	mkdir -p /opt/sysroot
+	cp kernel /opt/sysroot/kernel