X-Recipient: archive-cygwin AT delorie DOT com
DomainKey-Signature: a=rsa-sha1; c=nofws; d=sourceware.org; h=list-id
	:list-unsubscribe:list-subscribe:list-archive:list-post
	:list-help:sender:message-id:date:from:mime-version:to:subject
	:content-type:content-transfer-encoding; q=dns; s=default; b=tTq
	txeK0iGbjAQR2NPFi3BbEPG9e1XCv53aPy988jB3Ww6OkXTUpwnV5t4p95qzb0EE
	rQIViNupoMcNjyg85SxjF6aMmQpg7hGTnKtbNSstz5H7kBGRghTFOqXVLsdvMrJC
	3RQwhocSQrH+pDIxQ3Z5lecP3/fDaWACkabf6mYg=
DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=sourceware.org; h=list-id
	:list-unsubscribe:list-subscribe:list-archive:list-post
	:list-help:sender:message-id:date:from:mime-version:to:subject
	:content-type:content-transfer-encoding; s=default; bh=PHMhsbDyx
	5Mv1i4+gDC97bWpd+U=; b=A/5ZZQoiDLPp/dZrAZA5efRrCnsEQK5xVBAspkB6x
	7QjnuFNaoEW4Tlauzas/P8fZzxKTSHXrU9nPxaciw1J5srv7i7zoMvmp6b3VU73b
	y02E2i+16KE1f3U4NrP9YjpF9HJg01r+/GVQMG9GAzEP1A+8wifAnNSSho3cOOZT
	QM=
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
Authentication-Results: sourceware.org; auth=none
X-Virus-Found: No
X-Spam-SWARE-Status: Yes, score=5.2 required=5.0 tests=AWL,BAYES_50,FREEMAIL_FROM,KAM_COUK,KAM_FROM_URIBL_PCCC,SPF_PASS autolearn=no version=3.3.2
X-HELO: out.ipsmtp2nec.opaltelecom.net
X-IronPort-Anti-Spam-Filtered: true
X-IronPort-Anti-Spam-Result: A2CWAQC8qBBV/7JU0lUNT4NYWsZThSw/BQOBfwEBAQEBAYVQQD0WGAMCAQIBWAgBAYg4rVSbAAsBAQEaBJAzhBcFjkGFfZophBBvAYJCAQEB
X-IPAS-Result: A2CWAQC8qBBV/7JU0lUNT4NYWsZThSw/BQOBfwEBAQEBAYVQQD0WGAMCAQIBWAgBAYg4rVSbAAsBAQEaBJAzhBcFjkGFfZophBBvAYJCAQEB
Message-ID: <5510A9AB.7020607@tiscali.co.uk>
Date: Tue, 24 Mar 2015 00:02:51 +0000
From: David Stacey <drstacey AT tiscali DOT co DOT uk>
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:31.0) Gecko/20100101 Thunderbird/31.5.0
MIME-Version: 1.0
To: cygwin AT cygwin DOT com
Subject: static vs. shared linking
Content-Type: text/plain; charset=windows-1252; format=flowed
Content-Transfer-Encoding: 7bit
X-IsSubscribed: yes

I've been having difficulty building poco-1.6.0 for Cygwin for some
time. I've managed to produce a test case that shows the problem:

https://dl.dropboxusercontent.com/u/119453582/Cygwin/crashtest.tar.xz

This archive contains source files that produce a very simple library.
When linked statically, the code works fine. However, when linked as a
shared DLL, the test crashes with a core dump. The behaviour is
identical on x86 and x86_64 architectures.

Have I made a stupid error in the compilation of the shared case, or is
something more interesting going on?

Dave.




--
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