* util/getroot.c (strip_extra_slashes) [CYGWIN]: #ifdef-out.

	* util/getroot.c (strip_extra_slashes) [CYGWIN]: #ifdef-out.
	(exec_pipe) [CYGWIN || MINGW32]: Likewise.
	(find_root_devices_from_poolname) [CYGWIN || MINGW32]: Likewise.
	(find_root_devices_from_libzfs) [CYGWIN || MINGW32]: Likewise.
	Disable -Werror for -Wdeprecated-declarations.
	(grub_guess_root_devices) [CYGWIN || MINGW32]: #ifdef-out.
	(get_dm_uuid) [!HAVE_DEVICE_MAPPER]: Likewise.
	(grub_util_get_dm_abstraction) [! __linux__]: #ifdef-out.
	(grub_util_get_grub_dev): Make luks handling dependent on
	HAVE_DEVICE_MAPPER and not __linux__.
	(get_win32_path): Fix format security.
	(grub_find_zpool_from_dir) [CYGWIN || MINGW32]: #ifdef-out.
	(grub_make_system_path_relative_to_its_root) [CYGWIN || MINGW32]:
	Don't try grub_find_zpool_from_dir.
	(grub_make_system_path_relative_to_its_root) [!__linux__]:
	#ifdef-out paresdir.