fix.

	* grub-core/hook/datehook.c (grub_datetime_names): Make const.
	(grub_read_hook_datetime): Return const char *.
	* grub-core/kern/env.c (grub_env_get): Return const char *. All users
	updated.
	* grub-core/normal/datetime.c (grub_weekday_names): Make const.
	Mark for gettext.
	(grub_get_weekday_name): Return const char *. Call gettext.
	* grub-core/script/argv.c (grub_script_argv_append): Receive const
	char * and len as the argument. All users updated.
	(grub_script_argv_split_append): Receive const char *.
	* include/grub/datetime.h (grub_get_weekday_name): Update proto.
	* include/grub/env.h (grub_env_get): Likewise.
	(grub_env_read_hook_t): Return const char *.
	* include/grub/script_sh.h (grub_script_argv_append): Update proto.
	(grub_script_argv_split_append): Likewise.

	guidelines.

	* grub-core/kern/dl.c (grub_dl_check_license): New function.
	(grub_dl_load_core): Use grub_dl_check_license.
	* include/grub/dl.h (GRUB_MOD_SECTION): New macro.
	(GRUB_MOD_LICENSE): Likewise.
	(GRUB_MOD_DUAL_LICENSE): Likewise.
	All modules updated.

	(set_env_limn_ro): Likewise.
	(GRUB_MOD_INIT): Likewise.
	* grub-core/hook/datehook.c (GRUB_MOD_INIT): Likewise. Change to
	ARRAY_SIZE while on it.
	(GRUB_MOD_FINI): Change to ARRAY_SIZE.
	* grub-core/normal/context.c (grub_env_export): Move from here ...
	* grub-core/kern/env.c (grub_env_export): ... here.
	* grub-core/normal/context.c (grub_cmd_export): Skip exporting root and
	prefix.
	* grub-core/kern/main.c (grub_main): Export root and prefix.
	* include/grub/env.h (grub_env_export): Export.
	Reported by: Seth Goldberg.

	* disk/ata.c: Don't cast mod to void in GRUB_MOD_INIT to
	suppress warnings.  It's no longer needed.
	* disk/host.c: Likewise.
	* disk/ata_pthru.c: Likewise.
	* disk/loopback.c: Likewise.
	* hook/datehook.c: Likewise.
	* parttool/pcpart.c: Likewise.
	* fs/i386/pc/pxe.c: Likewise.
	* fs/ntfscomp.c: Likewise.
	* efiemu/main.c: Likewise.
	* mmap/mmap.c: Likewise.
	* commands/crc.c: Likewise.
	* commands/hexdump.c: Likewise.
	* commands/hdparm.c: Likewise.
	* commands/acpi.c: Likewise.
	* commands/echo.c: Likewise.
	* commands/minicmd.c: Likewise.
	* commands/blocklist.c: Likewise.
	* commands/memrw.c: Likewise.
	* commands/loadenv.c: Likewise.
	* commands/usbtest.c: Likewise.
	* commands/lsmmap.c: Likewise.
	* commands/boot.c: Likewise.
	* commands/parttool.c: Likewise.
	* commands/configfile.c: Likewise.
	* commands/search.c: Likewise.
	* commands/ieee1275/suspend.c: Likewise.
	* commands/cat.c: Likewise.
	* commands/i386/pc/pxecmd.c: Likewise.
	* commands/i386/pc/play.c: Likewise.
	* commands/i386/pc/halt.c: Likewise.
	* commands/i386/pc/vbeinfo.c: Likewise.
	* commands/i386/pc/vbetest.c: Likewise.
	* commands/lspci.c: Likewise.
	* commands/date.c: Likewise.
	* commands/handler.c: Likewise.
	* commands/ls.c: Likewise.
	* commands/test.c: Likewise.
	* commands/cmp.c: Likewise.
	* commands/efi/loadbios.c: Likewise.
	* commands/efi/fixvideo.c: Likewise.
	* commands/halt.c: Likewise.
	* commands/help.c: Likewise.
	* commands/reboot.c: Likewise.
	* hello/hello.c: Likewise.
	* script/sh/main.c: Likewise.
	* loader/xnu.c: Likewise.
	* term/terminfo.c: Likewise.
	* term/i386/pc/serial.c: Likewise.
	* term/usb_keyboard.c: Likewise.

	Support for mtime and further expandability of dir command

	* include/grub/lib/datetime.h: moved to ...
	* include/grub/datetime.h: ... moved here and added 
	declaration of grub_unixtime2datetime. All users updated
	* include/grub/fs.h: new syntax for dir and mtime functionin 
	struct grub_fs 
	* include/grub/fshelp.h: new declarations of GRUB_FSHELP_TYPE_MASK
	and GRUB_FSHELP_FLAGS_MASK
	* commands/ls.c (grub_ls_list_files): Write mtime in long format
	* fs/ext2.c (grub_ext2_dir): use new dir syntax and supply mtime
	(grub_ext2_mtime): new function
	* fs/hfsplus.c (grub_hfsplus_dir): use new dir syntax and supply mtime
	(grub_hfsplus_mtime): new function
	* fs/ufs.c (GRUB_UFS_ATTR_TYPE): new definition
	(GRUB_UFS_ATTR_FILE): likewise
	(GRUB_UFS_ATTR_LNK): likewise
	(struct grub_ufs_sblock): new fields mtime
	(grub_ufs_read_inode): new parameter to read inode to a separate buffer
	all users updated
	(grub_ufs_dir): mtime support
	(grub_ufs_mtime): new function
	* fs/affs.c (grub_affs_dir): use new dir syntax
	* fs/afs.c (grub_afs_dir): likewise
	* fs/cpio.c (grub_cpio_dir): likewise
	* fs/fat.c (grub_fat_find_dir): likewise
	* fs/hfs.c (grub_hfs_dir): likewise
	* fs/iso9660.c (grub_iso9660_dir): likewise
	* fs/jfs.c (grub_jfs_dir): likewise
	* fs/minix.c (grub_minix_dir): likewise
	* fs/ntfs.c (grub_ntfs_dir): likewise
	* fs/reiserfs.c (grub_reiserfs_dir): likewise
	* fs/sfs.c (grub_sfs_dir): likewise
	* fs/xfs.c (grub_xfs_dir): likewise
	* util/hostfs.c (grub_hostfs_dir): likewise
	* lib/datetime.c: moved to ...
	* normal/datetime.c: ... moved here
	(grub_unixtime2datetime): new function
	* kern/rescue.c (grub_rescue_print_files): use new dir syntax
	* normal/completition.c (iterate_dir): use new dir syntax
	* normal/misc.c (grub_normal_print_device_info): tell the 
	last modification time of a volume
	* kern/fs.c (grub_fs_probe): updated dummy function to use new syntax 
	* conf/common.rmk: added lib/datetime.c to ls.mod
	* conf/i386-coreboot.rmk (grub_emu_SOURCES): add normal/datetime.c  
	(normal_mod_SOURCES): likewise
	(datetime_mod_SOURCES): Removed lib/datetime.c
	* conf/i386-efi.rmk: likewise
	* conf/i386-ieee1275.rmk: likewise	
	* conf/i386-pc.rmk: likewise
	* conf/powerpc-ieee1275.rmk: likewise
	* conf/sparc64-ieee1275.rmk: likewise	
	* conf/x86_64-efi.rmk: likewise	

	* conf/i386-pc.rmk (pkglib_MODULES): Add datetime.mod, date.mod
	and datehook.mod.
	(datetime_mod_SOURCES): New macro.
	(datetime_mod_CFLAGS): Likewise.
	(datetime_mod_LDFLAGS): Likewise.
	(date_mod_SOURCES): Likewise.
	(date_mod_CFLAGS): Likewise.
	(date_mod_LDFLAGS): Likewise.
	(datehook_mod_SOURCES): Likewise.
	(datehook_mod_CFLAGS): Likewise.
	(datehook_mod_LDFLAGS): Likewise.

	* conf/i386-coreboot.rmk (pkglib_MODULES): Add datetime.mod, date.mod
	and datehook.mod.
	(datetime_mod_SOURCES): New macro.
	(datetime_mod_CFLAGS): Likewise.
	(datetime_mod_LDFLAGS): Likewise.
	(date_mod_SOURCES): Likewise.
	(date_mod_CFLAGS): Likewise.
	(date_mod_LDFLAGS): Likewise.
	(datehook_mod_SOURCES): Likewise.
	(datehook_mod_CFLAGS): Likewise.
	(datehook_mod_LDFLAGS): Likewise.

	* conf/i386-ieee1275.rmk (pkglib_MODULES): Add datetime.mod, date.mod
	and datehook.mod.
	(datetime_mod_SOURCES): New macro.
	(datetime_mod_CFLAGS): Likewise.
	(datetime_mod_LDFLAGS): Likewise.
	(date_mod_SOURCES): Likewise.
	(date_mod_CFLAGS): Likewise.
	(date_mod_LDFLAGS): Likewise.
	(datehook_mod_SOURCES): Likewise.
	(datehook_mod_CFLAGS): Likewise.
	(datehook_mod_LDFLAGS): Likewise.

	* conf/i386-efi.rmk (pkglib_MODULES): Add datetime.mod, date.mod
	and datehook.mod.
	(datetime_mod_SOURCES): New macro.
	(datetime_mod_CFLAGS): Likewise.
	(datetime_mod_LDFLAGS): Likewise.
	(date_mod_SOURCES): Likewise.
	(date_mod_CFLAGS): Likewise.
	(date_mod_LDFLAGS): Likewise.
	(datehook_mod_SOURCES): Likewise.
	(datehook_mod_CFLAGS): Likewise.
	(datehook_mod_LDFLAGS): Likewise.

	* conf/x86_64-efi.rmk (pkglib_MODULES): Add datetime.mod, date.mod
	and datehook.mod.
	(datetime_mod_SOURCES): New macro.
	(datetime_mod_CFLAGS): Likewise.
	(datetime_mod_LDFLAGS): Likewise.
	(date_mod_SOURCES): Likewise.
	(date_mod_CFLAGS): Likewise.
	(date_mod_LDFLAGS): Likewise.
	(datehook_mod_SOURCES): Likewise.
	(datehook_mod_CFLAGS): Likewise.
	(datehook_mod_LDFLAGS): Likewise.

	* kern/env.c (grub_env_insert): Fix a bug in prevp pointer.

	* commands/date.c: New file.

	* hook/datehook.c: Likewise.

	* include/grub/lib/datetime.h: Likewise.

	* include/grub/i386/cmos.h: Likewise.

	* lib/datetime.c: Likewise.

	* lib/i386/datetime.c: Likewise.

	* lib/efi/datetime.c: Likewise.