* configure.ac: Add support for sparc64 host with ieee1275
firmware.
* configure: Generated from configure.ac.
* disk/ieee1275/ofdisk.c (grub_ofdisk_open): Use grub_ssize_t
instead of int.
(grub_ofdisk_read): Likewise.
(grub_ofdisk_open): Use %p to print pointer values, and cast the
pointers as (void *) to remove a warning.
(grub_ofdisk_close): Likewise.
(grub_ofdisk_read): Likewise.
* kern/ieee1275/ieee1275.c (grub_ieee1275_exit): This never
returns, so make it return void to remove a warning.
* include/grub/ieee1275/ieee1275.h (grub_ieee1275_exit):
Corresponding prototype change.
* kern/mm.c (grub_mm_init_region): Use %p to print pointer
values, and cast the pointers as (void *) to remove a warning.
(grub_mm_dump): Likewise.
* conf/sparc64-ieee1275.mk: New file.
* conf/sparc64-ieee1275.rmk: Likewise.
* include/grub/sparc64/setjmp.h: Likewise.
* include/grub/sparc64/types.h: Likewise.
* include/grub/sparc64/ieee1275/console.h: Likewise.
* include/grub/sparc64/ieee1275/ieee1275.h: Likewise.
* include/grub/sparc64/ieee1275/kernel.h: Likewise.
* include/grub/sparc64/ieee1275/time.h: Likewise.
* kern/sparc64/cache.c: Likewise.
* kern/sparc64/dl.c: Likewise.
* kern/sparc64/ieee1275/init.c: Likewise.
* kern/sparc64/ieee1275/openfw.c: Likewise.
