clang_res_dir := $(shell $(cc) -print-resource-dir)

kernel_cflags   := --target=i386-none-elf \
                   -nostdinc \
                   -nostdlib \
                   -ffreestanding \
                   -fno-builtin \
                   -std=c11 \
                   -pedantic \
                   -Wall \
                   -Wextra

ifeq ($(build),debug)
kernel_cflags   += -O0 -g
endif

ifeq ($(build),release)
kernel_cflags   += -Oz
endif

kernel_ldflags  := -mcpu=i386 \
                   --target=i386-none-elf \
                   -nostdlib \
                   -ffreestanding \
                   -fno-builtin \
                   -fuse-ld=lld \
                   -flto \
                   -static \
                   -Wl,--build-id=none \
                   $(clang_res_dir)/lib/*/libclang_rt.builtins-i386.a

ifeq ($(build),debug)
kernel_ldflags  += -g
endif