(AC_CACHE_LOAD, AC_CACHE_SAVE, AC_CACHE_USE):

(AC_CACHE_LOAD, AC_CACHE_SAVE, AC_CACHE_USE):
	New macros.
	(AC_PREPARE): Call AC_CACHE_LOAD.
	(AC_OUTPUT): Call AC_CACHE_SAVE.
	(AC_PARSEARGS): Add --cache-file=FILE option.
	(AC_CONFIG_SUBDIRS): Pass --cache-file to subdirectory configures.

(AC_PROGRAM_CHECK, AC_PROGRAM_PATH): Use AC_CACHE_USE.

(AC_OUTPUT_CONFIG_SUBDIRS): Renamed from
	AC_CONFIG_SUBDIRS.
	(AC_CONFIG_SUBDIRS): Just define AC_SUBDIR_LIST.
	(AC_OUTPUT): Call AC_OUTPUT_CONFIG_SUBDIRS if AC_SUBDIR_LIST is
	defined.
	Make config.status --recheck pass --norecursion to configure.