===================================================================
RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/make/make.1,v
retrieving revision 1.69
retrieving revision 1.70
diff -c -r1.69 -r1.70
*** src/usr.bin/make/make.1	2007/07/08 17:44:20	1.69
--- src/usr.bin/make/make.1	2007/07/09 14:47:29	1.70
***************
*** 1,4 ****
! .\"	$OpenBSD: make.1,v 1.69 2007/07/08 17:44:20 espie Exp $
  .\"	$OpenPackages$
  .\"	$NetBSD: make.1,v 1.18 1997/03/10 21:19:53 christos Exp $
  .\"
--- 1,4 ----
! .\"	$OpenBSD: make.1,v 1.70 2007/07/09 14:47:29 jmc Exp $
  .\"	$OpenPackages$
  .\"	$NetBSD: make.1,v 1.18 1997/03/10 21:19:53 christos Exp $
  .\"
***************
*** 31,37 ****
  .\"
  .\"	from: @(#)make.1	8.4 (Berkeley) 3/19/94
  .\"
! .Dd $Mdocdate: July 8 2007 $
  .Dt MAKE 1
  .Os
  .Sh NAME
--- 31,37 ----
  .\"
  .\"	from: @(#)make.1	8.4 (Berkeley) 3/19/94
  .\"
! .Dd $Mdocdate: July 9 2007 $
  .Dt MAKE 1
  .Os
  .Sh NAME
***************
*** 845,869 ****
  Only global variables may be un-defined.
  .It Ic .poison Ar variable
  Poison the specified global variable.
! Any further reference to 
  .Ar variable
  will be flagged as an error.
! .It Xo
! .Ic \&.poison \&!defined 
! .Po Ar variable
! .Pc
! .Xc
  It is an error to try to use the value of
  .Ar variable
! in a context  where it is not defined.
! .It Xo
! .Ic \&.poison empty
! .Po Ar variable
! .Pc
! .Xc
  It is an error to try to use the value of
  .Ar variable
! in a context  where it is not defined or empty.
  .It Xo
  .Ic \&.if
  .Oo \&! Oc Ns Ar expression
--- 845,861 ----
  Only global variables may be un-defined.
  .It Ic .poison Ar variable
  Poison the specified global variable.
! Any further reference to
  .Ar variable
  will be flagged as an error.
! .It Ic .poison !defined Pq Ar variable
  It is an error to try to use the value of
  .Ar variable
! in a context where it is not defined.
! .It Ic .poison empty Pq Ar variable
  It is an error to try to use the value of
  .Ar variable
! in a context where it is not defined or empty.
  .It Xo
  .Ic \&.if
  .Oo \&! Oc Ns Ar expression