[Ubuntu] ZSTD Support GDAL 2.4/2.4.2

[Bas Couwenberg]

On 2019-08-08 11:50, Even Rouault wrote:
> From what I see in 
> https://salsa.debian.org/debian-gis-team/gdal/blob/master/
> debian/rules, Debian builds GDAL against external/system libtiff, right 
> ?

Correct, because we want a single package for tiff security updates.

> If so, libtiff must be built itself against libzstd, but I don't see it
> mentionned as a dependency of libtiff in
> https://packages.debian.org/sid/libtiff-dev

tiff (4.0.9+git181026-1) adds support for zstd according to the 
changelog.

bionic has 4.0.9-5 which lacks this change.

Kind Regards,

Bas