fn main() {
    cc::Build::new()
        .compiler("riscv64-unknown-elf-gcc")
        .flag("-Wall")
        .flag("-Werror")
        .flag("-O")
        .flag("-fno-omit-frame-pointer")
        .flag("-ggdb")
        .flag("-gdwarf-2")
        .flag("-MD")
        .flag("-mcmodel=medany")
        .flag("-ffreestanding")
        .flag("-fno-common")
        .flag("-nostdlib")
        .flag("-mno-relax")
        .flag("-I.")
        .flag("-march=rv64gc")
        .flag("-mabi=lp64d")
        .flag_if_supported("-fno-stack-protector")
        .flag_if_supported("-fno-pie")
        .flag_if_supported("-no-pie")
        .file("src/c/layered.c")
        .compile("layered");
}

/*
Wall -Werror -O -fno-omit-frame-pointer -ggdb -gdwarf-2
-MD
-mcmodel=medany
-ffreestanding -fno-common -nostdlib -mno-relax
-I.


-fno-stack-protector
-fno-pie -no-pie

TARGET_TRIPLE = riscv64gc-unknown-none-elf

# Disable PIE when possible (for Ubuntu 16.10 toolchain)
ifneq ($(shell $(CC) -dumpspecs 2>/dev/null | grep -e '[^f]no-pie'),)
endif
ifneq ($(shell $(CC) -dumpspecs 2>/dev/null | grep -e '[^f]nopie'),)
CFLAGS += -fno-pie -nopie
endif
*/