Thanks for the information Devrim.
We've been considering a faster move to RHEL7, and it's helpful to have an outside opinion on the topics below.
Also, thanks for the comment on libtiff 4.
Graeme.
On 03 Feb 2015, at 11:58, Devrim Gündüz <devrim@gunduz.org> wrote:
>
> Hi Graeme,
>
> On Mon, 2015-02-02 at 13:47 +0000, Graeme B. Bell wrote:
>
>> - Do you think there is any possibility that the PGDG RHEL6 builds
>> could be updated to gdal 1.11 to match the RHEL7 branch?
>
> No. That will break RHEL 6. (I am also an EPEL packager, and I know what
> it feels to push such an update to RHEL ...)
>
>> - It seems that there is no "BIGTIFF" support in the PGDG GDAL in
>> RHEL6.
>> This is strange because BIGTIFF has been supported since GDAL 1.4.4
>> (2007).
>> That means that raster sizes are limited to 4GB which is pretty small
>> for anyone doing national level work.
>>
>> Is there any reason that the BIGTIFF option isn't supported or could
>> it be enabled in future builds?
>> Perhaps the person who is building is not using libtiff or has
>> disabled it?
>
> AFAICS, libtiff > 4.0 is required for BIGTIFF support, and RHEL 6 has
> libtiff 3.9.4. Again, AFAICS, GDAL's configure can pick BIGTIFF support
> automagically when it finds the related version of libtiff. I suppose
> RHEL 7 has this support.
>
> Regards,
> --
> Devrim GÜNDÜZ
> Principal Systems Engineer @ EnterpriseDB: http://www.enterprisedb.com
> PostgreSQL Danışmanı/Consultant, Red Hat Certified Engineer
> Twitter: @DevrimGunduz , @DevrimGunduzTR
>