} catch (final UnsupportedEncodingException e) {
            return path;
        }
    }

    public String normalizeConfigPath(final String path) {

        if (StringUtil.isBlank(path)) {
            return StringUtils.EMPTY;
        }

        final String p = path.trim();
        if (p.startsWith("#")) {
            return StringUtils.EMPTY;
        }

	// Set file mode bits; clear perm, setuid, setgid, and sticky bits.
	switch m := fs.FileMode(fi.h.Mode) &^ 07777; m {
	case c_ISDIR:
		mode |= fs.ModeDir
	case c_ISFIFO:
		mode |= fs.ModeNamedPipe
	case c_ISLNK:
		mode |= fs.ModeSymlink
	case c_ISBLK:
		mode |= fs.ModeDevice
	case c_ISCHR:
		mode |= fs.ModeDevice
		mode |= fs.ModeCharDevice
	case c_ISSOCK:
		mode |= fs.ModeSocket
	}

def set_gcc_host_compiler_path(environ_cp):
  """Set GCC_HOST_COMPILER_PATH."""
  default_gcc_host_compiler_path = which('gcc') or ''
  cuda_bin_symlink = '%s/bin/gcc' % environ_cp.get('CUDA_TOOLKIT_PATH')

  if os.path.islink(cuda_bin_symlink):
    # os.readlink is only available in linux
    default_gcc_host_compiler_path = os.path.realpath(cuda_bin_symlink)

  gcc_host_compiler_path = prompt_loop_or_load_from_env(
      environ_cp,