How 2 OS Dependencies clang nasm qemu cross-linker Building a cross-linker curl -O http://ftp.gnu.org/gnu/binutils/binutils-2.27.tar.gz tar -xf binutils-2.27.tar.gz cd binutils-2.27 ./configure --target i386-none-elf make -j4 make install which i386-none-elf-ld