I find that -ffreestanding is too limiting in the presence of a decent C library. If newlib and libsupc++ are available, then you probably don't want -ffreesta

I find that -ffreestanding is too limiting in the presence of a decent C library. If newlib and libsupc++ are available, then you probably don't want -ffreestanding. Instead, provide your own syscalls and rely on the linker to tell you when you've inadvertently pulled in something extra heavy.