[El] BigTiff

[Peter Hopfgartner]

--------Frank Warmerdam <warmerdam at pobox.com> wrote--------
Subject: Re: [El] BigTiff
Date: 29.10.2010 15:54

>Mathieu Baudier wrote:
>> Excellent!!
>> 
>> I'll introduce that as well when I'll be working on pcraster support 
>> (next week)
>> 
>>> On 29 Oct 2010 08:27, "Hatzopoulos, Nikolaos" <hatzopou at chapman.edu 
>>> <mailto:hatzopou at chapman.edu>> wrote:
>>>
>>> I found out that gdal source has an internal libtiff that supports
>bigtiff
>>> so if you compile it with  --with-libtiff=internal
>>> enables BigTiff support :) so simple
>>>
>
>Folks,
>
>There are significant negatives to using the internal libtiff when
>building
>applications that might also end up linking in the system libtiff.  In
>a package-system like our, I advise strongly against using the internal
>libtiff, or libgeotiff.
>
>I already spoke to Tom Lane who maintains the redhat libtiff package
>about
>libtiff4 and he suggested I just start from the 3.8.2 rpm.  Seeing as
>Niko has already produced a libtiff 4 rpm I'll take a look at that.  I'd
>like to avoid the "put everything to do with libtiff4 somewhere special"
>approach if possible.  Certainly libtiff 4 is a major abi change and will
>have a correspondingly major change in the shared library numbering.
>

In http://www.r3-gis.com/upload/libtiff-3.99.6-1.el5.src.rpm libtiff4 is simply a newer version of libtiff. Anyway, am I over-cautious assuming  that applications compiled against libtiff3 would have problems with it?

>For background I'm working to produce a new generation of my FWTools
>tools
>(http://fwtools.osgeo.org) based on the rpm packages.  I have
>successfully
>produced a version this week based on the existing available RPMs.  The
>produced standalone 32bit installer works well on my 32bit centos VM as
>well as on my 64bit ubuntu system so I think I've captured a good depth
>of
>packages.
>
>But my next steps are:
>  o Add libtiff4/bigtiff support.
>  o Prepare a GDAL rpm based on GDAL "trunk".
>
These are all good news!
>My point being that I also have an interested in resolving the libtiff4
>issue.  I'd, for those who don't know me, I'm the GDAL/OGR project
>founder
>and a libtiff maintainer.
>
>Unfortunately, I'm quite new to RPMs and still struggling to master the
>basics not to speak of knowing what is good practice.
>
>Best regards,
>-- 
>---------------------------------------+--------------------------------------
>I set the clouds in motion - turn up   | Frank Warmerdam,
>warmerdam at pobox.com
>light and sound - activate the windows | http://pobox.com/~warmerdam
>and watch the world go round - Rush    | Geospatial Programmer for Rent
>
>
Regards,

Peter