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: <424266CF.B363166D@dessent.net> Date: Wed, 23 Mar 2005 23:05:51 -0800 From: Brian Dessent Organization: My own little world... MIME-Version: 1.0 To: cygwin@cygwin.com Subject: Re: How to compile with gcc/cygwin for "multithreaded DLL" access? References: <65213341217E8D458E7C78E6640C749504FABFCF@waglmb01.labs.agilent.com> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-IsSubscribed: yes Reply-To: cygwin@cygwin.com jeff_burch@agilent.com wrote: > cygcheck testSicl.exe > Found: .\testSicl.exe > testSicl.exe > C:\cygwin\bin\cygwin1.dll > C:\WINDOWS\system32\ADVAPI32.DLL > C:\WINDOWS\system32\ntdll.dll > C:\WINDOWS\system32\KERNEL32.dll > C:\WINDOWS\system32\RPCRT4.dll > .\SICL32.dll > C:\WINDOWS\system32\VERSION.dll > C:\WINDOWS\system32\MSVCR70.dll It's pretty much guaranteed that your program will crash and burn if it links against both Cygwin1.dll and MSVCRT*.DLL. They both provice a C runtime, and trying to mix two implementations of that same runtime is a no-no. It looks like this sicl32 dll was linked against msvcrt, so you'll have to recompile it against cygwin1.dll. (insert friendly reminder here that anything that links with Cygwin1.dll must be released under GPL or other OSI-approved license) If you don't have the source for sicl32.dll and you're trying to create a program that depends on both it and Cygwin1.dll, then you're probably violating a license somewhere. Brian -- 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/