--- aufs/fs/aufs25/vfsub.h~	2008-05-26 23:48:46.000000000 +0200
+++ aufs/fs/aufs25/vfsub.h	2008-05-26 23:51:50.260679424 +0200
@@ -181,7 +181,7 @@
 }
 #endif
 
-#ifdef CONFIG_AUFS_BR_XFS
+#ifndef CONFIG_AUFS_BR_XFS
 /* br_xfs.c */
 dev_t au_h_rdev(struct inode *h_inode, struct vfsmount *h_mnt,
 		struct dentry *h_dentry);