X-Recipient: archive-cygwin AT delorie DOT com
X-SWARE-Spam-Status: No, hits=-1.0 required=5.0	tests=AWL,BAYES_00,SPF_NEUTRAL,TW_YG
X-Spam-Check-By: sourceware.org
Message-ID: <4EE7987B.8030208@cs.utoronto.ca>
Date: Tue, 13 Dec 2011 13:24:59 -0500
From: Ryan Johnson <ryan DOT johnson AT cs DOT utoronto DOT ca>
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:8.0) Gecko/20111105 Thunderbird/8.0
MIME-Version: 1.0
To: cygwin AT cygwin DOT com
Subject: Re: cyg*.dll, linking
References: <CAGVbXL7YGp-WsEx4QooOCX_44GB2gx_C5hNBKkGbXXT_y3zTEg AT mail DOT gmail DOT com>
In-Reply-To: <CAGVbXL7YGp-WsEx4QooOCX_44GB2gx_C5hNBKkGbXXT_y3zTEg@mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
X-IsSubscribed: yes
Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm
List-Id: <cygwin.cygwin.com>
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

On 13/12/2011 1:16 PM, Brian Craft wrote:
> I'm building a few libraries which are dependencies of a program I'm
> building. Most of them build via autotools. Doing "make install"
> installs files *.a, *.la, *.dll.a. Linking the executable succeeds
> without error, however when running it, the loader complains that it
> can't find cyg*.dll files. E.g. if it was libfoo.a that was installed,
> the executable wants cygfoo-6.dll to run.
>
> These cyg-*.dll files exist in the build directories, generally in
> src/.libs . The program will run if I add all of these to the PATH.
>
> Seems like either the link or the install isn't working as it should.
> Are there docs anywhere that explain how this is supposed to work?
The lib*.a file is a stub which allows proper linking of the actual dll 
(exporting symbols, etc.). Linking against it doesn't remove the need to 
have the cyg*.dll available at runtime.

Ryan


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