===================================================================
RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/less/less.h,v
retrieving revision 1.1.1.3
retrieving revision 1.1.1.4
diff -c -r1.1.1.3 -r1.1.1.4
*** src/usr.bin/less/less.h	2011/09/16 17:47:05	1.1.1.3
--- src/usr.bin/less/less.h	2014/04/25 13:33:48	1.1.1.4
***************
*** 1,11 ****
  /*
!  * Copyright (C) 1984-2011  Mark Nudelman
   *
   * You may distribute under the terms of either the GNU General Public
   * License or the Less License, as specified in the README file.
   *
!  * For more information about less, or for information on how to 
!  * contact the author, see the README file.
   */
  
  #define NEWBOT 1
--- 1,10 ----
  /*
!  * Copyright (C) 1984-2012  Mark Nudelman
   *
   * You may distribute under the terms of either the GNU General Public
   * License or the Less License, as specified in the README file.
   *
!  * For more information, see the README file.
   */
  
  #define NEWBOT 1
***************
*** 83,88 ****
--- 82,88 ----
  #if HAVE_STRING_H
  #include <string.h>
  #endif
+ #include <signal.h>
  
  /* OS-specific includes */
  #ifdef _OSK
***************
*** 450,456 ****
  #if _OSK_MWC32
  #define	LSIGNAL(sig,func)	os9_signal(sig,func)
  #else
! #define	LSIGNAL(sig,func)	signal(sig,func)
  #endif
  
  #if HAVE_SIGPROCMASK
--- 450,456 ----
  #if _OSK_MWC32
  #define	LSIGNAL(sig,func)	os9_signal(sig,func)
  #else
! #define	LSIGNAL(sig,func)	lsignal(sig,func)
  #endif
  
  #if HAVE_SIGPROCMASK
***************
*** 485,494 ****
--- 485,497 ----
  #define	CH_KEEPOPEN	002
  #define	CH_POPENED	004
  #define	CH_HELPFILE	010
+ #define	CH_NODATA  	020	/* Special case for zero length files */
  
+ 
  #define	ch_zero()	((POSITION)0)
  
  #define	FAKE_HELPFILE	"@/\\less/\\help/\\file/\\@"
+ #define FAKE_EMPTYFILE	"@/\\less/\\empty/\\file/\\@"
  
  /* Flags for cvt_text */
  #define	CVT_TO_LC	01	/* Convert upper-case to lower-case */