From:	khan AT xraylith DOT wisc DOT edu (Mumit Khan)
Subject:	Re: Does anyone succeed in calling a DLL from MSVC?
29 Jan 1999 23:09:06 -0800 :
Message-ID:	<Pine.SUN.3.93.990129102344.11065K-100000.cygnus.gnu-win32@modi.xraylith.wisc.edu>
References:	<C1256707 DOT 006050E4 DOT 00 AT avalon DOT dianos DOT it>
Mime-Version:	1.0
To:	claudio DOT pacchiega AT dianos DOT it
Cc:	gnu-win32 AT cygnus DOT com

On Thu, 28 Jan 1999 claudio DOT pacchiega AT dianos DOT it wrote:

> I'm getting more and more frustrated in my attempt to link a Cygnus dll
> from a
> MSVC6 procedure (i tried so far just a plain vanilla console win32
> application from msvc).

I've posted descriptions on how to do this in the past, and so I won't
repeat it here. Here's what I've done for small test codes:
  
  $ dllwrap --entry __cygwin_noncygwin_dll_entry AT 12 -o foo.dll \
    --export-all --add-stdcall-alias [object files] [libraries needed]

Then just use LoadLibrary to load the Cygwin DLL from your MSVC app. 

You cannot really *link* the DLL into MSVC since they're not compatible 
at the *link* level; it might work, and then again it might not.

Perhaps you could ask Microsoft to make MSVC more compatible with Cygwin;
they listen to the customers, right ;-)

Note that there is a subtle and nasty bug in GCC that causes STDCALL
functions to misbehave when the return type is float or double. It
only affects STDCALL functions.

Regards,
Mumit


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