-OS_BIN := $(OS_NAME).bin
-OS_ISO := $(OS_NAME).iso
-
-USR_LIB := liblxusrt.a
-
-BUILD_DIR := build
-KERNEL_DIR := kernel
-OBJECT_DIR := $(BUILD_DIR)/obj
-BIN_DIR := $(BUILD_DIR)/bin
-ISO_DIR := $(BUILD_DIR)/iso
-ISO_BOOT_DIR := $(ISO_DIR)/boot
-ISO_GRUB_DIR := $(ISO_BOOT_DIR)/grub