Mailing-List: contact cygwin-help AT sourceware DOT cygnus DOT com; run by ezmlm
List-Subscribe: <mailto:cygwin-subscribe AT sourceware DOT cygnus DOT com>
List-Archive: <http://sourceware.cygnus.com/ml/cygwin/>
List-Post: <mailto:cygwin AT sourceware DOT cygnus DOT com>
List-Help: <mailto:cygwin-help AT sourceware DOT cygnus DOT com>, <http://sourceware.cygnus.com/ml/#faqs>
Sender: cygwin-owner AT sourceware DOT cygnus DOT com
Delivered-To: mailing list cygwin AT sourceware DOT cygnus DOT com
From: Chris Faylor <cgf AT cygnus DOT com>
Date: Wed, 15 Mar 2000 10:01:54 -0500
To: Cygwin Mailing List <cygwin AT sourceware DOT cygnus DOT com>
Subject: Re: Linking problem: IsWindowVisible
Message-ID: <20000315100154.D26330@cygnus.com>
Reply-To: cygwin AT sourceware DOT cygnus DOT com
Mail-Followup-To: cgf AT cygnus DOT com,
	Cygwin Mailing List <cygwin AT sourceware DOT cygnus DOT com>
References: <38CFA385 DOT B0594DCE AT sigma6 DOT com> <200003151457 DOT PAA85319 AT andromeda DOT risc DOT uni-linz DOT ac DOT at>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
User-Agent: Mutt/1.1.8i
In-Reply-To: <200003151457.PAA85319@andromeda.risc.uni-linz.ac.at>; from Axel.Riese@risc.uni-linz.ac.at on Wed, Mar 15, 2000 at 03:57:56PM +0100

On Wed, Mar 15, 2000 at 03:57:56PM +0100, Axel Riese wrote:
>> > Hm, in this case you should have problems at compile time, not at
>> > link time, shouldn't you ?
>> 
>> Not necessarily.  In the absence of a declaration, C will guess "int
>> IsWindowVisible()", which in this case is wrong.
>> 
>> BTW you can catch such problems by compiling with -Wall:
>
>Yes, clear. But I have my doubts that one can get an undefined reference
>due to a missing declaration. Anyway, adding -mwindows or -luser32
>should solve the problem.

Your doubts are wrong.  If you haven't declared the function correctly
this is exactly what you'll get.

cgf

--
Want to unsubscribe from this list?
Send a message to cygwin-unsubscribe AT sourceware DOT cygnus DOT com