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Message-ID: <001901c4d887$c873bfb0$0200a8c0@mindcooler>
From: =?iso-8859-1?Q?Mikael_=C5sberg?= <mikas493 AT student DOT liu DOT se>
To: <cygwin AT cygwin DOT com>
References: <000a01c4d883$eb5024f0$0200a8c0 AT mindcooler> <20041202153745 DOT GA29883 AT trixie DOT casa DOT cgf DOT cx>
Subject: Re: MSVC-dll under cygwin
Date: Thu, 2 Dec 2004 16:58:36 +0100
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> On Thu, Dec 02, 2004 at 04:30:56PM +0100, Mikael ?sberg wrote:
>>Hello, I was under the impression that using a Cygwin-compiled DLL
>>under MSVC was extremely difficult, if not impossible, but using a
>>MSVC-compiled DLL with programs compiled under Cygwin is possible?  I
>>have test program that first calls LoadLibrary() and then for each
>>function in the DLL it wants to call I call GetProcAddress().  However,
>>when I try to call any function the program segfaults (the function
>>pointers are not NULL).  The same test program works if compiled using
>>MSVC.  Am I mistaken that this should work or is there an error
>>somewhere?
> 
> Since cygwin itself uses all sorts of non-cygwin dlls, it is a safe
> assumption that it must be able to use non-cygwin dlls.
> 
> However, if you are using stdio from msvcrt, you may run into problems.
> 
> cgf
>

Thanks for the quick reply. I may have found the problem (will test
later). In one of the functions, a parameter was declared to be const
but it was declared as non-const in the definition. Seems like a mistake
that can cause all sorts of weird problems.

/ Mikael


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