X-Spam-Check-By: sourceware.org From: "Dave Korn" To: References: <000001c7adeb$04468a00$0cd39e00$@mills AT novaspeech DOT com> Subject: RE: dll link error using Cygwin gcc Date: Wed, 13 Jun 2007 19:48:23 +0100 Message-ID: <01cc01c7adeb$6b351830$2e08a8c0@CAM.ARTIMI.COM> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Mailer: Microsoft Office Outlook 11 In-Reply-To: <000001c7adeb$04468a00$0cd39e00$@mills@novaspeech.com> Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: List-Subscribe: List-Archive: List-Post: List-Help: , 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 June 2007 19:45, Harold Mills wrote: > As Dave Korn and Brian Dessent both pointed out, my problem was that gcc was > compiling Hello.c with the default cdecl calling convention, but the library > I wanted to link to uses the stdcall convention. Adding __stdcall to the > function declarations in the header file eci.h fixed the problem. Dave > suggested using the --enable-stdcall-fixup link option, which from the ld > documentation did seem like it would do the trick, but I couldn't get it to > work. I specified it to gcc as -Wl,--enable-stdcall-fixup, but still got the > "undefined reference" error message. In any case, Brian was right and my suggestion was wrong: if the library was compiled with a different calling convention, bodging the symbols to match up isn't the right thing to do, because the code will go wrong at runtime. cheers, DaveK -- Can't think of a witty .sigline today.... -- 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/