===================================================================
RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/awk/main.c,v
retrieving revision 1.66
retrieving revision 1.67
diff -c -r1.66 -r1.67
*** src/usr.bin/awk/main.c	2023/11/25 16:31:33	1.66
--- src/usr.bin/awk/main.c	2023/11/28 20:54:38	1.67
***************
*** 1,4 ****
! /*	$OpenBSD: main.c,v 1.66 2023/11/25 16:31:33 millert Exp $	*/
  /****************************************************************
  Copyright (C) Lucent Technologies 1997
  All Rights Reserved
--- 1,4 ----
! /*	$OpenBSD: main.c,v 1.67 2023/11/28 20:54:38 millert Exp $	*/
  /****************************************************************
  Copyright (C) Lucent Technologies 1997
  All Rights Reserved
***************
*** 23,29 ****
  THIS SOFTWARE.
  ****************************************************************/
  
! const char	*version = "version 20231124";
  
  #define DEBUG
  #include <stdio.h>
--- 23,29 ----
  THIS SOFTWARE.
  ****************************************************************/
  
! const char	*version = "version 20231127";
  
  #define DEBUG
  #include <stdio.h>
***************
*** 180,185 ****
--- 180,187 ----
  		}
  		if (strcmp(argv[1], "--csv") == 0) {	/* turn on csv input processing */
  			CSV = true;
+ 			if (fs)
+ 				WARNING("danger: don't set FS when --csv is in effect");
  			argc--;
  			argv++;
  			continue;
***************
*** 201,206 ****
--- 203,210 ----
   			break;
  		case 'F':	/* set field separator */
  			fs = setfs(getarg(&argc, &argv, "no field separator"));
+ 			if (CSV)
+ 				WARNING("danger: don't set FS when --csv is in effect");
  			break;
  		case 'v':	/* -v a=1 to be done NOW.  one -v for each */
  			vn = getarg(&argc, &argv, "no variable name");