Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner@cygwin.com Mail-Followup-To: cygwin@cygwin.com Delivered-To: mailing list cygwin@cygwin.com Message-ID: <42495B9B.7090900@huarp.harvard.edu> Date: Tue, 29 Mar 2005 08:43:55 -0500 From: Norton Allen User-Agent: Mozilla Thunderbird 0.8 (Windows/20040913) MIME-Version: 1.0 To: "Gerrit P. Haase" CC: cygwin@cygwin.com Subject: Re: gcc 3.3.3, const symbols and shared libraries References: <4246D5A0.4070409@huarp.harvard.edu> <42491C9C.5000906@familiehaase.de> In-Reply-To: <42491C9C.5000906@familiehaase.de> Content-Type: multipart/mixed; boundary="------------080605010406010609020003" Received-SPF: pass (ent.arp.harvard.edu: 10.0.0.109 is authenticated by a trusted mechanism) --------------080605010406010609020003 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Gerrit P. Haase wrote: > Norton Allen wrote: > >> I have seen the discussions at >> >> http://sourceware.org/ml/cygwin/2004-09/msg01101.html >> >> referenced at >> >> http://cygwin.com/ml/cygwin/2005-03/msg00048.html >> >> regarding gcc 3.3.3's placement of const symbols into >> rdata which then cannot be properly initialized. >> This problem seems pretty fundamental. Can anyone >> tell me whether there has been any followup to >> this? Is it considered a cygwin problem or a >> gcc problem? Has it been addressed in 3.4.1? >> What are developers doing? Going back to 3.3.1? > > > The rule is to not use const symbols in shared libraries > if they are not really const;) What do you mean by "really?" These are const from the standpoint of "defined once and never changed thereafter," but they are not finally defined until the link against shared libraries. It's currently an issue because it requires changes to quite a few packages. In the past week, I had to remove const declarations from glib-2.6.3 and gtk+-2.6.4 to get them to compile. Are these changes that are uniquely required by cygwin, or are these going to be required for all gcc platforms? -Norton --------------080605010406010609020003 Content-Type: text/x-vcard; charset=utf-8; name="allen.vcf" Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename="allen.vcf" begin:vcard fn:Norton Allen n:Allen;Norton org:Harvard University;Anderson Group, DEAS/CCB adr;dom:;;12 Oxford St.;Cambridge;MA;02138 email;internet:allen@huarp.harvard.edu title:Software Engineer tel;work:617-495-5922 x-mozilla-html:FALSE url:http://www.arp.harvard.edu/ version:2.1 end:vcard --------------080605010406010609020003 Content-Type: text/plain; charset=us-ascii -- 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/ --------------080605010406010609020003--