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Message-ID: <3BE848B7.6030603@cportcorp.com>
Date: Tue, 06 Nov 2001 15:31:51 -0500
From: Peter Buckley <peter DOT buckley AT cportcorp DOT com>
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To: cygwin AT cygwin DOT com
Subject: Re: fileutils, sh-utils fail to compile due to _tzname, _LIBC undefined
References: <3BE70FEB DOT 1020106 AT cportcorp DOT com> <20011105173945 DOT A23269 AT redhat DOT com>
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Thanks to Chris and Josh, I have gotten a little further- at least in 
providing info that will hopefully help someone help me along even 
further. I got "date +%z" to work, it correctly tells me -0500. But 
"date +%Z" outputs nothing, because it "there is no determinable timezone".

I got "info date" to work, but I didn't find out how to set the timezone 
  (%Z). It seems that "date --set=xxx" doesn't affect the timezone.

AFAICT, I am going to have to write a c file that will call tzset() to 
set the timezone correctly- best case I do this once, and the timezone 
stays forever set, worst case I have to include it to compile fileutils 
and sh-utils (and anything else that relies on time, strftime etc).

But I am concerned that fileutils and sh-utils actually do compile OOTB 
for everyone else, and there is some lurking problem with my system that 
this hack of calling tzset() will only workaround in this case.

I would appreciate any ideas of what the root problem is, or even a 
definitive "fileutils and sh-utils will compile OOTB" or "they won't 
compile OOTB".

TIA,
Peter

Christopher Faylor wrote:

 > On Mon, Nov 05, 2001 at 05:17:15PM -0500, Peter Buckley wrote:
 >
 >>I can't get "date %z" or "date %Z" to work on the command line in a bash
 >>shell, it just says "date: invalid date `%Z'".
 >>
 >
 > That's because you should be using:
 >
 > date +"%z"
 >      ^
 >
 > cgf
 >
 >


My original message -------------

I am trying to compile fileutils and sh-utils, and I am getting an error-

gcc  -g -O2   -o dir  ls.o ls-dir.o ../lib/libfetish.a  -lintl
../lib/libfetish.a(strftime.o): In function `strftime_copytm':
/cygdrive/d/f-comp/fileutils-4.1-1/build/lib/../../lib/strftime.c:1270: 
undefined reference to `_tzname'

I read a bunch of messages in the archives, and one about "You must 
declare tzname as __attribute__((dllimport)) or __declspec(dllimport), 
or else it won't link" but I don't know how or where to do this (I 
haven't made any changes to the source yet, and wanted to verify that it 
would compile OOTB first).

I can't get "date %z" or "date %Z" to work on the command line in a bash 
shell, it just says "date: invalid date `%Z'". I can't seem to set the 
date with a timezone- the man page doesn't provide the format, and "info 
date" tells me "info: dir: No such file or directory" (I haven't used 
info before). My attempts to do "date --set=Mon Nov 5 17:10:49 2001 EST" 
managed to change the date to yesterday, 11pm. My NT clock says that my 
timezone is GMT -0500 Eastern Time.

There is an #ifdef _LIBC at the beginning of strftime.c that ends up 
defining _tzname, but I don't think _LIBC is defined, and I can't find 
where it would be defined. I tried removing the #ifdef and forcing 
_tzname to get defined, but that gave many more errors.

I hope there is something big that I am missing, like an important 
include file that defines _LIBC and I just didn't pick it up in the 
configure.


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