Mailing-List:	contact cygwin-help AT cygwin DOT com; run by ezmlm
List-Subscribe:	<mailto:cygwin-subscribe AT cygwin DOT com>
List-Archive:	<http://sourceware.org/ml/cygwin/>
List-Post:	<mailto:cygwin AT cygwin DOT com>
List-Help:	<mailto:cygwin-help AT cygwin DOT com>, <http://sourceware.org/ml/#faqs>
Sender:	cygwin-owner AT cygwin DOT com
Mail-Followup-To:	cygwin AT cygwin DOT com
Delivered-To:	mailing list cygwin AT cygwin DOT com
Date:	Thu, 12 May 2005 20:39:33 +1000
From:	Erik de Castro Lopo <cygwin-erikd AT mega-nerd DOT com>
To:	cygwin AT cygwin DOT com
Subject:	Re: gcc + cygwin
Message-Id:	<20050512203933.1d4723cc.cygwin-erikd@mega-nerd.com>
In-Reply-To:	<20050512095949.87139.qmail@web50810.mail.yahoo.com>
References:	<20050512095949 DOT 87139 DOT qmail AT web50810 DOT mail DOT yahoo DOT com>
Mime-Version:	1.0
X-IsSubscribed:	yes

Marcel wrote:

> I've been using a particular set of C-code for years
> on several systems (mostly linux on PC, or Unix on
> some Sun) and could always get it to work when I moved
> to a new machine.
> 
> Now, I'm trying to get it to work on a PC with cygwin.
> 
> cygcheck claims I have gcc version 3.3.3-3 OK.
> 
> I am NOT an experienced C or cygwin user, but the
> problems I keep running into, appear to me that gcc
> with cygwin behaves very differently from whatever I
> had on the previous systems.
> 
> gcc -g -Wall -c flm.c
> flm.c:37: error: initializer element is not constant
> make: *** [flm.o] Error 1
> 
> The offending line.37 was:
> FILE *ch_par=stdout,*ch_verify=NULL;
> 
> In my ignorance, I have to assume that gcc/cygwin is
> not compatible with other gcc implementations. Can
> that
> be? Or could I have a botched installation of
> cygwin+gcc?

Probably neither.

I think the C standard says that stdout might not be a compile
time constant.

The fix to this is th change line 37 to:

    FILE *ch_par = NULL, *ch_verify = NULL;

Then, in the first function that uses ch_par, set it to stdout.
If this file has a main() function you can just do this at the
start of main:

    ch_par = stdout;

if the file doesn't contain a main() function you should probably 
do this in each function that uses ch_par:

   if (ch_par == NULL)
        ch_par = stdout ;

Hope this helps,
Erik
-- 
+-----------------------------------------------------------+
  Erik de Castro Lopo  nospam AT mega-nerd DOT com (Yes it's valid)
+-----------------------------------------------------------+
"When your hammer is C++, everything begins to look like a thumb."
-- Steve Haflich, in comp.lang.c++

--
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple
Problem reports:       http://cygwin.com/problems.html
Documentation:         http://cygwin.com/docs.html
FAQ:                   http://cygwin.com/faq/

- Raw text -