def gcc_stash_builddir_fixrpaths(d):
    # rewrite rpaths, breaking hardlinks as required
    process_dir("/", d.getVar("BUILDDIRSTASH"), d, break_hardlinks = True)

gcc_stash_builddir_fixrpaths(d)

def process_dir(rootdir, directory, d, break_hardlinks = False):
    bb.debug(2, "Checking %s for binaries to process" % directory)
    if not os.path.exists(directory):
        return

    import stat

    rootdir = os.path.normpath(rootdir)
    cmd = d.expand('${CHRPATH_BIN}')
    tmpdir = os.path.normpath(d.getVar('TMPDIR', False))
    baseprefix = os.path.normpath(d.expand('${base_prefix}'))
    hostos = d.getVar("HOST_OS")

    if "linux" in hostos:
        process_file = process_file_linux
    elif "darwin" in hostos:
        process_file = process_file_darwin
    else:
        # Relocations not supported
        return

    dirs = os.listdir(directory)
    for file in dirs:
        fpath = directory + "/" + file
        fpath = os.path.normpath(fpath)
        if os.path.islink(fpath):
            # Skip symlinks
            continue

        if os.path.isdir(fpath):
            process_dir(rootdir, fpath, d, break_hardlinks = break_hardlinks)
        else:
            #bb.note("Testing %s for relocatability" % fpath)

            # We need read and write permissions for chrpath, if we don't have
            # them then set them temporarily. Take a copy of the files
            # permissions so that we can restore them afterwards.
            perms = os.stat(fpath)[stat.ST_MODE]
            if os.access(fpath, os.W_OK|os.R_OK):
                perms = None
            else:
                # Temporarily make the file writeable so we can chrpath it
                os.chmod(fpath, perms|stat.S_IRWXU)

            process_file(cmd, fpath, rootdir, baseprefix, tmpdir, d, break_hardlinks = break_hardlinks)

            if perms:
                os.chmod(fpath, perms)