Function bootstrap::compile::add_to_sysroot

pub fn add_to_sysroot(
    builder: &Builder<'_>,
    sysroot_dst: &Path,
    sysroot_host_dst: &Path,
    stamp: &Path
)

Link some files into a rustc sysroot.

For a particular stage this will link the file listed in stamp into the sysroot_dst provided.