TAKE 942400 - fix mainline -Wundef warnings

[nathans@xxxxxxx (Nathan Scott)]

Cleanup some -Wundef flag warnings in the endian macros (thanks Christoph).

Date:  Thu Sep  8 15:41:42 AEST 2005
Workarea:  chook.melbourne.sgi.com:/build/nathans/xfs-linux
Inspected by:  hch

The following file(s) were checked into:
  longdrop.melbourne.sgi.com:/isms/xfs-kern/xfs-linux-melb


Modid:  xfs-linux-melb:xfs-kern:23771a
xfs_log_priv.h - 1.107 - changed
http://oss.sgi.com/cgi-bin/cvsweb.cgi/xfs-linux/xfs_log_priv.h.diff?r1=text&tr1=1.107&r2=text&tr2=1.106&f=h
xfs_arch.h - 1.47 - changed
http://oss.sgi.com/cgi-bin/cvsweb.cgi/xfs-linux/xfs_arch.h.diff?r1=text&tr1=1.47&r2=text&tr2=1.46&f=h
xfs_inode_item.c - 1.120 - changed
http://oss.sgi.com/cgi-bin/cvsweb.cgi/xfs-linux/xfs_inode_item.c.diff?r1=text&tr1=1.120&r2=text&tr2=1.119&f=h
xfs_bmap_btree.h - 1.68 - changed
http://oss.sgi.com/cgi-bin/cvsweb.cgi/xfs-linux/xfs_bmap_btree.h.diff?r1=text&tr1=1.68&r2=text&tr2=1.67&f=h
xfs_bmap_btree.c - 1.147 - changed
http://oss.sgi.com/cgi-bin/cvsweb.cgi/xfs-linux/xfs_bmap_btree.c.diff?r1=text&tr1=1.147&r2=text&tr2=1.146&f=h
xfs_dir_leaf.h - 1.43 - changed
http://oss.sgi.com/cgi-bin/cvsweb.cgi/xfs-linux/xfs_dir_leaf.h.diff?r1=text&tr1=1.43&r2=text&tr2=1.42&f=h
linux-2.6/xfs_ksyms.c - 1.28 - changed
http://oss.sgi.com/cgi-bin/cvsweb.cgi/xfs-linux/linux-2.6/xfs_ksyms.c.diff?r1=text&tr1=1.28&r2=text&tr2=1.27&f=h
linux-2.4/xfs_ksyms.c - 1.23 - changed
http://oss.sgi.com/cgi-bin/cvsweb.cgi/xfs-linux/linux-2.4/xfs_ksyms.c.diff?r1=text&tr1=1.23&r2=text&tr2=1.22&f=h