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Message-ID: <41A702DC.5000708@familiehaase.de>
Date: Fri, 26 Nov 2004 11:18:04 +0100
From: "Gerrit P. Haase" <gerrit AT familiehaase DOT de>
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To: Michael Peppler <mpeppler AT peppler DOT org>
CC: cygwin AT cygwin DOT com
Subject: Re: Using Sybase DLLs from Cygwin apps
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Michael Peppler wrote:

> [ Note - I'm a Unix/linux person and know very little about Windows ]
> 
> I'm trying to build sqsh under Cygwin and I'm running into a problem
> with decorate vs. non-decorated library symbols.
> 
> Sybase uses the __stdcall calling convention for its libraries under
> Windows, so gcc generates symbols like _ct_results AT 8.
> 
> I've gone through the Cygwin docs on linking with Windows DLLs, and I've
> generated three .def files and .a files using the following:
> 
> cd $SYBASE/OCS-12_5/lib
> for i in libblk libcs libct; do
>     echo "EXPORTS" >${i}.def
>     nm ${i}.lib | grep 'T _' | sed 's/.* T _//' >>${i}.def
>     dlltool --dllname ${i}.dll --def ${i}.def --output-lib ${i}.a
> done
> 
> This generates what looks like valid .a files, *but* they are all with
> non-decorated symbols, and of course the link phase fails.
> 
> Is there a way to direct the linker to match up the _ct_xxx AT y symbols
> with the corresponding _ct_xxx entries in the .a/.dll?

Have you tried the ld flag '--enable-stdcall-fixup'?


Gerrit
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