[gdal-dev] [saga-gis-developer] the output image is cut to half

[Even Rouault]

Le jeudi 28 juin 2012 10:11:22, Salvatore Larosa a écrit :
> I think this could be the cause of my problem with output saga images!
> 
> Any idea on how avoid libtiff version mismatch?
> I refer at 1.9.1 version!

The ldd output indeed could explain a few things. Generally, in Linux distros, 
libtiff.so.4 is in fact libtiff 3.8.2 or libtiff 3.9.X (yes, the soname doesn't 
reflect the version number of libtiff). You should check in your distro which 
libtiff version it is exactly. So if my hypothesis is right, you have both 
internal libtiff (libtiff 4.0beta) compiled in libgdal, and libgdal is linking 
to external libtiff 3.X, hence the warning about version mismatch. When GDAL 
links against its internal libtiff version, it doesn't try to link to external 
libtiff of course. So, to explain your situation, an hypothesis would be that 
GDAL links against another library, which itself links against libtiff 3.X... 
Hope you have followed me ;-)

What you could try is rebuild GDAL, by specifying --with-rename-internal-
libtiff-symbols in the ./configure command line (and make clean; make)

> 
> Il giorno gio, 28/06/2012 alle 09.35 +0200, Volker Wichmann ha scritto:
> > Hi Salvatore,
> > 
> > On 06/27/2012 03:29 PM, Salvatore Larosa wrote:
> > >> "Warning 1: libtiff version mismatch : You're linking against libtiff
> > >> 3.X, but GDAL has been compiled against libtiff >= 4.0.0"
> > > 
> > > Actually I have some problem with libtiff. I compiled gdal with
> > > external libtiff I recompiled saga and now:
> > > 
> > > # ldd libgdal.so | grep libtiff
> > > 
> > > 	libtiff.so.4 => /usr/lib/x86_64-linux-gnu/libtiff.so.4
> > > 
> > > (0x00007f46ec898000)
> > > 
> > > # ldd libio_gdal.so | grep libtiff
> > > 
> > > 	libtiff.so.4 => /usr/lib/x86_64-linux-gnu/libtiff.so.4
> > > 
> > > (0x00007f07608ce000)
> > > 
> > > both the versions are matching!
> > > But I still get thr Warning message!
> > 
> > I think this is a GDAL issue, the message is actually printed from
> > 
> > ./frmts/gtiff/geotiff.cpp:                     "libtiff version mismatch
> > 
> > : You're linking against libtiff 3.X, but GDAL has been compiled against
> > 
> > libtiff >= 4.0.0");
> > 
> > In the file, line 9110, there is also a comment:
> > 
> > /* This is a frequent configuration error that is difficult to track down
> > */ /* for people unaware of the issue : GDAL built against internal
> > libtiff (4.X) */
> > /* but used by an application that links with external libtiff (3.X) */
> > /* Note: on my conf, the order that cause GDAL to crash - and that is
> > detected */
> > /* by the following code - is "-ltiff -lgdal". "-lgdal -ltiff" works for
> > the */
> > /* GTiff driver but probably breaks the application that believes it
> > uses libtiff 3.X */
> > /* but we cannot detect that... */
> > 
> > 
> > In the news file there are further hints:
> > 
> > ./NEWS: * Don't prevent from loading GTiff driver even if libtiff
> > version mismatch detected (#4101)
> > ./NEWS: * Try to detect build-time vs runtime libtiff version mismatch
> > (*nix only)
> > 
> > 
> > I would guess that you still observe this conflict,
> > best regards,
> > Volker
> > 
> > 
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