diff --git a/src/sys/ufs/ffs/ffs_alloc.c b/src/sys/ufs/ffs/ffs_alloc.c
index 485d679..9836d44 100644
--- a/src/sys/ufs/ffs/ffs_alloc.c
+++ b/src/sys/ufs/ffs/ffs_alloc.c
@@ -1,3 +1,4 @@
+#if 0
 /*
  * Copyright (c) 2002 Networks Associates Technology, Inc.
  * All rights reserved.
@@ -2360,3 +2361,4 @@
 	vn_finished_write(mp);
 	return (error);
 }
+#endif
diff --git a/src/sys/ufs/ffs/ffs_balloc.c b/src/sys/ufs/ffs/ffs_balloc.c
index 6f6a328..1f5b956 100644
--- a/src/sys/ufs/ffs/ffs_balloc.c
+++ b/src/sys/ufs/ffs/ffs_balloc.c
@@ -1,3 +1,4 @@
+#if 0
 /*
  * Copyright (c) 2002 Networks Associates Technology, Inc.
  * All rights reserved.
@@ -885,3 +886,4 @@
 	(void) VOP_FSYNC(vp, cred, MNT_WAIT, td);
 	return (error);
 }
+#endif
diff --git a/src/sys/ufs/ffs/ffs_extern.h b/src/sys/ufs/ffs/ffs_extern.h
index a06335d..a83660d 100644
--- a/src/sys/ufs/ffs/ffs_extern.h
+++ b/src/sys/ufs/ffs/ffs_extern.h
@@ -1,3 +1,4 @@
+#if 0
 /*-
  * Copyright (c) 1991, 1993, 1994
  *	The Regents of the University of California.  All rights reserved.
@@ -130,3 +131,4 @@
 #endif
 
 #endif /* !_UFS_FFS_EXTERN_H */
+#endif
diff --git a/src/sys/ufs/ffs/ffs_inode.c b/src/sys/ufs/ffs/ffs_inode.c
index 5b76166..c4124c9 100644
--- a/src/sys/ufs/ffs/ffs_inode.c
+++ b/src/sys/ufs/ffs/ffs_inode.c
@@ -1,3 +1,4 @@
+#if 0
 /*
  * Copyright (c) 1982, 1986, 1989, 1993
  *	The Regents of the University of California.  All rights reserved.
@@ -639,3 +640,4 @@
 	*countp = blocksreleased;
 	return (allerror);
 }
+#endif
diff --git a/src/sys/ufs/ffs/ffs_rawread.c b/src/sys/ufs/ffs/ffs_rawread.c
index 5819e82..f0f0f95 100644
--- a/src/sys/ufs/ffs/ffs_rawread.c
+++ b/src/sys/ufs/ffs/ffs_rawread.c
@@ -1,3 +1,4 @@
+#if 0
 /*-
  * Copyright (c) 2000-2003 Tor Egge
  * All rights reserved.
@@ -496,3 +497,5 @@
 {
 	bdone(bp);
 }
+
+#endif
diff --git a/src/sys/ufs/ffs/ffs_snapshot.c b/src/sys/ufs/ffs/ffs_snapshot.c
index d195b6e..30784a4 100644
--- a/src/sys/ufs/ffs/ffs_snapshot.c
+++ b/src/sys/ufs/ffs/ffs_snapshot.c
@@ -1,3 +1,4 @@
+#if 0
 /*
  * Copyright 2000 Marshall Kirk McKusick. All Rights Reserved.
  *
@@ -2112,3 +2113,4 @@
 	auio.uio_td = td;
 	return (physio(ip->i_devvp->v_rdev, &auio, 0));
 }
+#endif
diff --git a/src/sys/ufs/ffs/ffs_softdep.c b/src/sys/ufs/ffs/ffs_softdep.c
index 51c92d3..844008a 100644
--- a/src/sys/ufs/ffs/ffs_softdep.c
+++ b/src/sys/ufs/ffs/ffs_softdep.c
@@ -1,3 +1,4 @@
+#if 0
 /*
  * Copyright 1998, 2000 Marshall Kirk McKusick. All Rights Reserved.
  *
@@ -5931,3 +5932,4 @@
 	/* XXX should do something better! */
 	printf("%s: got error %d while accessing filesystem\n", func, error);
 }
+#endif
diff --git a/src/sys/ufs/ffs/ffs_softdep_stub.c b/src/sys/ufs/ffs/ffs_softdep_stub.c
index 486bc58..2e65208 100644
--- a/src/sys/ufs/ffs/ffs_softdep_stub.c
+++ b/src/sys/ufs/ffs/ffs_softdep_stub.c
@@ -1,3 +1,4 @@
+#if 0
 /*
  * Copyright 1998 Marshall Kirk McKusick. All Rights Reserved.
  *
@@ -315,3 +316,4 @@
 	return (0);
 }
 #endif	/* SOFTUPDATES not configured in */
+#endif
diff --git a/src/sys/ufs/ffs/ffs_subr.c b/src/sys/ufs/ffs/ffs_subr.c
index a772bde..e304131 100644
--- a/src/sys/ufs/ffs/ffs_subr.c
+++ b/src/sys/ufs/ffs/ffs_subr.c
@@ -1,3 +1,4 @@
+#if 0
 /*
  * Copyright (c) 1982, 1986, 1989, 1993
  *	The Regents of the University of California.  All rights reserved.
@@ -290,3 +291,4 @@
 		panic("ffs_setblock");
 	}
 }
+#endif
diff --git a/src/sys/ufs/ffs/ffs_tables.c b/src/sys/ufs/ffs/ffs_tables.c
index 3df835c..af35c3c 100644
--- a/src/sys/ufs/ffs/ffs_tables.c
+++ b/src/sys/ufs/ffs/ffs_tables.c
@@ -1,3 +1,4 @@
+#if 0
 /*
  * Copyright (c) 1982, 1986, 1993
  *	The Regents of the University of California.  All rights reserved.
@@ -139,3 +140,4 @@
 u_char *fragtbl[MAXFRAG + 1] = {
 	0, fragtbl124, fragtbl124, 0, fragtbl124, 0, 0, 0, fragtbl8,
 };
+#endif
diff --git a/src/sys/ufs/ffs/ffs_vnops.c b/src/sys/ufs/ffs/ffs_vnops.c
index 5b2d02b..401cacd 100644
--- a/src/sys/ufs/ffs/ffs_vnops.c
+++ b/src/sys/ufs/ffs/ffs_vnops.c
@@ -1,3 +1,4 @@
+#if 0
 /*
  * Copyright (c) 2002, 2003 Networks Associates Technology, Inc.
  * All rights reserved.
@@ -1813,3 +1814,4 @@
 		error = ffs_close_ea(ap->a_vp, 1, ap->a_cred, ap->a_td);
 	return(error);
 }
+#endif
diff --git a/src/sys/ufs/ffs/fs.h b/src/sys/ufs/ffs/fs.h
index a207977..96e18e1 100644
--- a/src/sys/ufs/ffs/fs.h
+++ b/src/sys/ufs/ffs/fs.h
@@ -1,3 +1,4 @@
+#if 0
 /*
  * Copyright (c) 1982, 1986, 1993
  *	The Regents of the University of California.  All rights reserved.
@@ -602,3 +603,4 @@
 extern u_char *fragtbl[];
 
 #endif
+#endif
diff --git a/src/sys/ufs/ffs/softdep.h b/src/sys/ufs/ffs/softdep.h
index 94567e2..97813c3 100644
--- a/src/sys/ufs/ffs/softdep.h
+++ b/src/sys/ufs/ffs/softdep.h
@@ -1,3 +1,4 @@
+#if 0
 /*
  * Copyright 1998, 2000 Marshall Kirk McKusick. All Rights Reserved.
  *
@@ -587,3 +588,4 @@
 #	define	db_state db_list.wk_state /* unused */
 	struct	pagedep *db_pagedep;	/* associated pagedep */
 };
+#endif
diff --git a/src/sys/ufs/ufs/acl.h b/src/sys/ufs/ufs/acl.h
index 6c3cc99..1eabf29 100644
--- a/src/sys/ufs/ufs/acl.h
+++ b/src/sys/ufs/ufs/acl.h
@@ -1,3 +1,4 @@
+#if 0
 /*-
  * Copyright (c) 1999-2001 Robert N. M. Watson
  * All rights reserved.
@@ -47,3 +48,4 @@
 #endif /* !_KERNEL */
 
 #endif /* !_UFS_UFS_ACL_H_ */
+#endif
diff --git a/src/sys/ufs/ufs/dinode.h b/src/sys/ufs/ufs/dinode.h
index 56da597..af3fb6e 100644
--- a/src/sys/ufs/ufs/dinode.h
+++ b/src/sys/ufs/ufs/dinode.h
@@ -1,3 +1,4 @@
+#if 0
 /*
  * Copyright (c) 2002 Networks Associates Technology, Inc.
  * All rights reserved.
@@ -168,3 +169,4 @@
 #define	di_ouid		di_u.oldids[0]
 
 #endif /* _UFS_UFS_DINODE_H_ */
+#endif
diff --git a/src/sys/ufs/ufs/dir.h b/src/sys/ufs/ufs/dir.h
index 50e4c33..289c18b 100644
--- a/src/sys/ufs/ufs/dir.h
+++ b/src/sys/ufs/ufs/dir.h
@@ -1,3 +1,4 @@
+#if 0
 /*
  * Copyright (c) 1982, 1986, 1989, 1993
  *	The Regents of the University of California.  All rights reserved.
@@ -157,3 +158,4 @@
 	char		dotdot_name[4];	/* ditto */
 };
 #endif /* !_DIR_H_ */
+#endif
diff --git a/src/sys/ufs/ufs/dirhash.h b/src/sys/ufs/ufs/dirhash.h
index 77177f1..1073afc 100644
--- a/src/sys/ufs/ufs/dirhash.h
+++ b/src/sys/ufs/ufs/dirhash.h
@@ -1,3 +1,4 @@
+#if 0
 /*
  * Copyright (c) 2001 Ian Dowse.  All rights reserved.
  *
@@ -125,3 +126,4 @@
 void	ufsdirhash_checkblock(struct inode *, char *, doff_t);
 
 #endif /* !_UFS_UFS_DIRHASH_H_ */
+#endif
diff --git a/src/sys/ufs/ufs/extattr.h b/src/sys/ufs/ufs/extattr.h
index 49809b6..37321fe 100644
--- a/src/sys/ufs/ufs/extattr.h
+++ b/src/sys/ufs/ufs/extattr.h
@@ -1,3 +1,4 @@
+#if 0
 /*-
  * Copyright (c) 1999-2001 Robert N. M. Watson
  * All rights reserved.
@@ -109,3 +110,4 @@
 #endif /* !_KERNEL */
 
 #endif /* !_UFS_UFS_EXTATTR_H_ */
+#endif
diff --git a/src/sys/ufs/ufs/inode.h b/src/sys/ufs/ufs/inode.h
index f0f8a74..df6df2c 100644
--- a/src/sys/ufs/ufs/inode.h
+++ b/src/sys/ufs/ufs/inode.h
@@ -1,3 +1,4 @@
+#if 0
 /*
  * Copyright (c) 1982, 1989, 1993
  *	The Regents of the University of California.  All rights reserved.
@@ -177,3 +178,4 @@
 #endif /* _KERNEL */
 
 #endif /* !_UFS_UFS_INODE_H_ */
+#endif
diff --git a/src/sys/ufs/ufs/quota.h b/src/sys/ufs/ufs/quota.h
index bf4876e..b3de955 100644
--- a/src/sys/ufs/ufs/quota.h
+++ b/src/sys/ufs/ufs/quota.h
@@ -1,3 +1,4 @@
+#if 0
 /*
  * Copyright (c) 1982, 1986, 1993
  *	The Regents of the University of California.  All rights reserved.
@@ -202,3 +203,4 @@
 #endif /* _KERNEL */
 
 #endif /* !_UFS_UFS_QUOTA_H_ */
+#endif
diff --git a/src/sys/ufs/ufs/ufs_acl.c b/src/sys/ufs/ufs/ufs_acl.c
index 299c7be..5645987 100644
--- a/src/sys/ufs/ufs/ufs_acl.c
+++ b/src/sys/ufs/ufs/ufs_acl.c
@@ -1,3 +1,4 @@
+#if 0
 /*-
  * Copyright (c) 1999-2001, 2003 Robert N. M. Watson
  * All rights reserved.
@@ -439,3 +440,4 @@
 }
 
 #endif /* !UFS_ACL */
+#endif
diff --git a/src/sys/ufs/ufs/ufs_bmap.c b/src/sys/ufs/ufs/ufs_bmap.c
index a5e6287..d38f9fd 100644
--- a/src/sys/ufs/ufs/ufs_bmap.c
+++ b/src/sys/ufs/ufs/ufs_bmap.c
@@ -1,3 +1,4 @@
+#if 0
 /*
  * Copyright (c) 1989, 1991, 1993
  *	The Regents of the University of California.  All rights reserved.
@@ -383,3 +384,4 @@
 		*nump = numlevels;
 	return (0);
 }
+#endif
diff --git a/src/sys/ufs/ufs/ufs_dirhash.c b/src/sys/ufs/ufs/ufs_dirhash.c
index 902e04b..6080a7d 100644
--- a/src/sys/ufs/ufs/ufs_dirhash.c
+++ b/src/sys/ufs/ufs/ufs_dirhash.c
@@ -1,3 +1,4 @@
+#if 0
 /*
  * Copyright (c) 2001, 2002 Ian Dowse.  All rights reserved.
  *
@@ -1082,3 +1083,4 @@
 }
 
 #endif /* UFS_DIRHASH */
+#endif
diff --git a/src/sys/ufs/ufs/ufs_extattr.c b/src/sys/ufs/ufs/ufs_extattr.c
index 11a4d75..ebccd86 100644
--- a/src/sys/ufs/ufs/ufs_extattr.c
+++ b/src/sys/ufs/ufs/ufs_extattr.c
@@ -1,3 +1,4 @@
+#if 0
 /*-
  * Copyright (c) 1999, 2000, 2001, 2002 Robert N. M. Watson
  * Copyright (c) 2002, 2003 Networks Associates Technology, Inc.
@@ -1299,3 +1300,4 @@
 }
 
 #endif /* !UFS_EXTATTR */
+#endif
diff --git a/src/sys/ufs/ufs/ufs_extern.h b/src/sys/ufs/ufs/ufs_extern.h
index e198732..e8dac02 100644
--- a/src/sys/ufs/ufs/ufs_extern.h
+++ b/src/sys/ufs/ufs/ufs_extern.h
@@ -1,3 +1,4 @@
+#if 0
 /*-
  * Copyright (c) 1991, 1993, 1994
  *	The Regents of the University of California.  All rights reserved.
@@ -123,3 +124,4 @@
 #define BA_SEQMAX	0x7F
 
 #endif /* !_UFS_UFS_EXTERN_H_ */
+#endif
diff --git a/src/sys/ufs/ufs/ufs_ihash.c b/src/sys/ufs/ufs/ufs_ihash.c
index ab2638f..84b4194 100644
--- a/src/sys/ufs/ufs/ufs_ihash.c
+++ b/src/sys/ufs/ufs/ufs_ihash.c
@@ -1,3 +1,4 @@
+#if 0
 /*
  * Copyright (c) 1982, 1986, 1989, 1991, 1993, 1995
  *	The Regents of the University of California.  All rights reserved.
@@ -194,3 +195,4 @@
 	}
 	mtx_unlock(&ufs_ihash_mtx);
 }
+#endif
diff --git a/src/sys/ufs/ufs/ufs_inode.c b/src/sys/ufs/ufs/ufs_inode.c
index ffab94a..93e9858 100644
--- a/src/sys/ufs/ufs/ufs_inode.c
+++ b/src/sys/ufs/ufs/ufs_inode.c
@@ -1,3 +1,4 @@
+#if 0
 /*
  * Copyright (c) 1991, 1993, 1995
  *	The Regents of the University of California.  All rights reserved.
@@ -185,3 +186,4 @@
 	vp->v_data = 0;
 	return (0);
 }
+#endif
diff --git a/src/sys/ufs/ufs/ufs_lookup.c b/src/sys/ufs/ufs/ufs_lookup.c
index bcaf30a..085a6c1 100644
--- a/src/sys/ufs/ufs/ufs_lookup.c
+++ b/src/sys/ufs/ufs/ufs_lookup.c
@@ -1,3 +1,4 @@
+#if 0
 /*
  * Copyright (c) 1989, 1993
  *	The Regents of the University of California.  All rights reserved.
@@ -1267,3 +1268,4 @@
 		vput(vp);
 	return (error);
 }
+#endif
diff --git a/src/sys/ufs/ufs/ufs_quota.c b/src/sys/ufs/ufs/ufs_quota.c
index ce03528..395e42a 100644
--- a/src/sys/ufs/ufs/ufs_quota.c
+++ b/src/sys/ufs/ufs/ufs_quota.c
@@ -1,3 +1,4 @@
+#if 0
 /*
  * Copyright (c) 1982, 1986, 1990, 1993, 1995
  *	The Regents of the University of California.  All rights reserved.
@@ -1059,3 +1060,4 @@
 		}
 	}
 }
+#endif
diff --git a/src/sys/ufs/ufs/ufs_vfsops.c b/src/sys/ufs/ufs/ufs_vfsops.c
index ceab486..3c064a5 100644
--- a/src/sys/ufs/ufs/ufs_vfsops.c
+++ b/src/sys/ufs/ufs/ufs_vfsops.c
@@ -1,3 +1,4 @@
+#if 0
 /*
  * Copyright (c) 1991, 1993, 1994
  *	The Regents of the University of California.  All rights reserved.
@@ -225,3 +226,4 @@
 	*vpp = nvp;
 	return (0);
 }
+#endif
diff --git a/src/sys/ufs/ufs/ufs_vnops.c b/src/sys/ufs/ufs/ufs_vnops.c
index 8061c2b..89d68bf 100644
--- a/src/sys/ufs/ufs/ufs_vnops.c
+++ b/src/sys/ufs/ufs/ufs_vnops.c
@@ -1,3 +1,4 @@
+#if 0
 /*
  * Copyright (c) 1982, 1986, 1989, 1993, 1995
  *	The Regents of the University of California.  All rights reserved.
@@ -2810,3 +2811,4 @@
 {
 	return (VOCALL(ufs_specop_p, ap->a_desc->vdesc_offset, ap));
 }
+#endif
diff --git a/src/sys/ufs/ufs/ufsmount.h b/src/sys/ufs/ufs/ufsmount.h
index f1ff892..69c5330 100644
--- a/src/sys/ufs/ufs/ufsmount.h
+++ b/src/sys/ufs/ufs/ufsmount.h
@@ -1,3 +1,4 @@
+#if 0
 /*
  * Copyright (c) 1982, 1986, 1989, 1993
  *	The Regents of the University of California.  All rights reserved.
@@ -120,3 +121,4 @@
 #endif /* _KERNEL */
 
 #endif
+#endif