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Subject: RE: [1.7] Unable to find jpeg_CreateDecompress but linked against   cygjpeg-62.dll OK
Date: Mon, 6 Apr 2009 12:50:07 -0500
Message-ID: <297343D29C14AA4D822142893ABEAEF30637F1FA@srv1163ex1.flightsafety.com>
In-Reply-To: <49CD02C1.6000603@gmail.com>
References: <297343D29C14AA4D822142893ABEAEF306318DFF@srv1163ex1.flightsafety.com> <49CCFD57.8030906@cwilson.fastmail.fm> <49CD02C1.6000603@gmail.com>
From: "Thrall, Bryan" <bryan.thrall@flightsafety.com>
To: <cygwin@cygwin.com>
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Dave Korn wrote on Friday, March 27, 2009 11:46 AM:
> Charles Wilson wrote:
>> Thrall, Bryan wrote:
>>> I recently installed 1.7 (C:\cygwin_1.7) alongside 1.5 (C:\cygwin)
on my
>>> workstation, then reconfigured and rebuilt my application (vital),
which
>>> worked just fine under 1.5 but doesn't under 1.7.
>>=20
>>> "Unable to find jpeg_CreateDecompress in cygwin1.dll".
>>                                            ^^^^^^^^^^^
>>=20
>>> and cygjpeg-62.dll is executable and exports jpeg_CreateDecompress
>>> (according to the Depends tool, which also says vital imports that
>>> symbol by name), so I'm at a loss to explain why that symbol isn't
being
>>> found. Perhaps it is a red herring?
>>=20
>> Did you, by chance, compile with gcc-4, and have -lm on your link
>> command? Try either compiling with gcc-3, or remove -lm.
>=20
>   Or -lpthread.  Yep, this is almost certainly the broken import
tables
> problem again.

Yep, updating to Cygwin 1.7.0-45 fixes the problem; I had assumed the
broken import tables problem had to do with gcc4, and just needed to
re-examine with a clear head :)

Thanks,
--=20
Bryan Thrall
FlightSafety International
bryan.thrall@flightsafety.com

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