===================================================================
RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/make/buf.h,v
retrieving revision 1.20
retrieving revision 1.21
diff -c -r1.20 -r1.21
*** src/usr.bin/make/buf.h	2012/09/21 07:55:20	1.20
--- src/usr.bin/make/buf.h	2012/10/02 10:29:30	1.21
***************
*** 1,7 ****
  #ifndef _BUF_H
  #define _BUF_H
  
! /*	$OpenBSD: buf.h,v 1.20 2012/09/21 07:55:20 espie Exp $	*/
  /*	$NetBSD: buf.h,v 1.7 1996/12/31 17:53:22 christos Exp $ */
  
  /*
--- 1,7 ----
  #ifndef _BUF_H
  #define _BUF_H
  
! /*	$OpenBSD: buf.h,v 1.21 2012/10/02 10:29:30 espie Exp $	*/
  /*	$NetBSD: buf.h,v 1.7 1996/12/31 17:53:22 christos Exp $ */
  
  /*
***************
*** 93,101 ****
  /* Buf_AddChars(buf, n, str);
   *	Adds n chars to buffer buf starting from str. */
  extern void Buf_AddChars(Buffer, size_t, const char *);
  /* Buf_Reset(buf);
   *	Empties buffer.  */
! #define Buf_Reset(bp)	((void)((bp)->inPtr = (bp)->buffer))
  /* n = Buf_Size(buf);
   *	Returns number of chars currently in buf.
   *	Doesn't include the null-terminating char.  */
--- 93,103 ----
  /* Buf_AddChars(buf, n, str);
   *	Adds n chars to buffer buf starting from str. */
  extern void Buf_AddChars(Buffer, size_t, const char *);
+ /* Buf_Truncate(buffer, length) */
+ #define Buf_Truncate(bp, len)	((void)((bp)->inPtr = (bp)->buffer + (len)))
  /* Buf_Reset(buf);
   *	Empties buffer.  */
! #define Buf_Reset(bp)	Buf_Truncate(bp, 0)
  /* n = Buf_Size(buf);
   *	Returns number of chars currently in buf.
   *	Doesn't include the null-terminating char.  */