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Subject: ATTN: jpeglib maintainer
Date: Thu, 21 Jul 2005 15:35:13 +0200
Message-ID: <F0D7281DAB048B438E8F5EC4ECEFBDDC506D61@esmail.elsag.de>
From: =?iso-8859-1?Q?J=F6rg_Schaible?= <Joerg DOT Schaible AT Elsag-Solutions DOT com>
To: <cygwin AT cygwin DOT com>
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X-MIME-Autoconverted: from quoted-printable to 8bit by delorie.com id j6LDZewP024383

Hi Charles (you seem the jpeglib maintainer),

it seems something has gone wrong with the last jpeglib version. Basically I want to compile jpeginfo (http://www.cc.jyu.fi/~tjko/projects.html). Using a managed mount (has an aux directory) it configures fine, but fails to compile:

 ======= %< =======
 $ LANG=C make
 gcc  -g -O2  -DHAVE_CONFIG_H   -c -o jpeginfo.o jpeginfo.c
 jpeginfo.c: In function `main':
 jpeginfo.c:323: error: structure has no member named `progressive_mode'
 jpeginfo.c:333: error: structure has no member named `progressive_mode'
 make: *** [jpeginfo.o] Error 1
 ======= %< =======

Looking into jpeglib.h the compiler is right and this member is missing. Then I downloaded the original jpeglib version 6b source (ftp://ftp.uu.net/graphics/jpeg/) and recognized, that the jpeglib.h in this library has the missing member. Next step was to download the source for the Cygwin version 6b-11 ... but it downloads always 6b-8 (not that I know if there's a real difference in the source between b6-8 and b6-11 is in Cygwin, the doc/Cygwin/jpeglib-v6.README does hints just some packaging thingy). The source package installs at least a jpegsrc-v6b.tar.gz to /usr/src.

But now is the situation even more complicated:

 - the installed /usr/include/jpeglib.h does not have the progressive_mode member
 - the jpeglib.h in the installed source package has the member but ...
 - it is still different to the jpeglib.h from the jpegsrc.v6b.tar.gz I've downloaded directly form the original site

?? I am slightly confused now about the Cygwin version ...

Regards,
Jörg

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