[El] BigTiff

[Frank Warmerdam]

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.

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".

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,
-- 
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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