Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!wasatch!helios.ee.lbl.gov!nosc!cod!hall
From: hall@cod.NOSC.MIL (Robert R. Hall)
Newsgroups: comp.os.minix
Subject: Re: C. E. Chew's new ls.c
Keywords: ls commands
Message-ID: <1618@cod.NOSC.MIL>
Date: 27 Aug 89 02:45:11 GMT
Organization: Naval Ocean Systems Center, San Diego
Lines: 107


All though C. E. Chew new ls.c may compile without errors on the
ST-ATARI and with Microsoft C, I got lots of error messages when
trying to compile with Version 1.3 Minix C compiler on the IBM-PC.
jerry@buita.BU.EDU <Jerry Shekhel> suggested  he got rid of the
warning messaged by changing the statement
   #define NIL    ((void *)0)
to
   #define NIL    (0)
and after line 859 adding the statement
   extern struct tm *localtime();
To get rid of the mutidefine error message, I found I need to
change the statement
   #define BOOL(b)     static char b = 0
to
   #define BOOL(b)     char b = 0

The following cdiff contains the total patches I needed to 
get it to compile with MINIX on the IBM-PC

To compile this I used the command:
   cc -DMINIX -Di8088 -T. -o ls ls.c

I have observed that this ls print dates that are more the a
year old for the year as 3888 instead of 1988
Robert R. Hall
hall@nosc.mil
-----------------------   ls.cdif   ----------------------------
echo x - ls.cdif
sed '/^X/s///' > ls.cdif << '/'
X*** /dr_a/ls/ls.c	Mon Jul 31 08:30:03 1989
X--- ls.c	Sat Aug 26 19:02:05 1989
X***************
X*** 43,51 ****
X  #ifdef	MINIX
X  #include <minix/const.h>
X  #include <minix/type.h>
X! #include <fs/const.h>
X! #include <fs/type.h>
X! #undef printf
X  #endif
X  
X  #define DEFAULTDIR	"."		/* default for ls without args */
X--- 43,52 ----
X  #ifdef	MINIX
X  #include <minix/const.h>
X  #include <minix/type.h>
X! #include "../fs/const.h"
X! #include "../fs/type.h"
X! #undef printf
X! extern int errno;
X  #endif
X  
X  #define DEFAULTDIR	"."		/* default for ls without args */
X***************
X*** 60,66 ****
X  #define HALFYEAR	((long) 60*60*24*365/2) /* half year in seconds */
X  #define BASEYEAR	1900		/* struct tm.tm_year base */
X  
X! #define NIL		((void *) 0)	/* nil pointer */
X  
X  /*
X   * Flags are maintained in a bitmap. Access should be fast
X--- 61,67 ----
X  #define HALFYEAR	((long) 60*60*24*365/2) /* half year in seconds */
X  #define BASEYEAR	1900		/* struct tm.tm_year base */
X  
X! #define NIL		(0)		/* nil pointer */
X  
X  /*
X   * Flags are maintained in a bitmap. Access should be fast
X***************
X*** 82,88 ****
X   * useful when working with the flags since these are
X   * read-only.
X   */
X! #define BOOL(b)		static char b = 0
X  #define EVAL(b,a)	((b ? b : (b = (a)+1)) > 1)
X  
X  /*
X--- 83,89 ----
X   * useful when working with the flags since these are
X   * read-only.
X   */
X! #define BOOL(b)		char b = 0
X  #define EVAL(b,a)	((b ? b : (b = (a)+1)) > 1)
X  
X  /*
X***************
X*** 858,864 ****
X  
X  {
X    struct tm *tmbuf;			/* output time */
X!   
X    tmbuf = localtime(&t);
X    (void) printf("%.3s %2d ",
X                  "JanFebMarAprMayJunJulAugSepOctNovDec"+tmbuf->tm_mon*3,
X--- 859,866 ----
X  
X  {
X    struct tm *tmbuf;			/* output time */
X!   extern struct tm *localtime();
X! 
X    tmbuf = localtime(&t);
X    (void) printf("%.3s %2d ",
X                  "JanFebMarAprMayJunJulAugSepOctNovDec"+tmbuf->tm_mon*3,
/