Your message dated Fri, 16 Sep 2016 20:08:27 +0200
with message-id <0cd98d77-95b6-42d9-1ab4-f9e69a84b...@xs4all.nl>
and subject line Re: Bug#838036: Postgis package has very many GUI dependencies
has caused the Debian Bug report #838036,
regarding Postgis package has very many GUI dependencies
to be marked as done.

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838036: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=838036
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--- Begin Message ---
Package: postgresql-9.5-postgis-2.2
Version: 2.2.2+dfsg-5

Attempting to install postgis on a headless server, i.e. a
system that doesn't have X or any sort of desktop environment
installed, wants to bring in vast numbers of dependencies.

The issue seems to be that the postgis package depends on
liblwgeom, which depends on libsfcgal, which depends on
libopenscenegraph.  This depends on lots of GUI things
including mesa and qt.  (There may also be other dependency
chains that I've not noticed.)

It seems reasonable to me that I should be able to add geographic
primitives to PostgreSQL in order to, for example, execute the
query that appears at the top of the PostGIS website:

SELECT superhero.name
FROM city, superhero
WHERE ST_Contains(city.geom, superhero.geom)
AND city.name = 'Gotham';

- without also having to install vast numbers of unwanted
GUI packages.  Would it be possible to downgrade some of the
dependencies to "suggests", or perhaps offer a "lite" package
that avoids them entirely?

Thanks, Phil.

--- End Message ---
--- Begin Message ---
tags 838036 wontfix
thanks

Hi Phil,

On 09/16/2016 07:36 PM, Phil Endecott wrote:
> Attempting to install postgis on a headless server, i.e. a
> system that doesn't have X or any sort of desktop environment
> installed, wants to bring in vast numbers of dependencies.
>
> The issue seems to be that the postgis package depends on
> liblwgeom, which depends on libsfcgal, which depends on
> libopenscenegraph.  This depends on lots of GUI things
> including mesa and qt.  (There may also be other dependency
> chains that I've not noticed.)
> 
> It seems reasonable to me that I should be able to add geographic
> primitives to PostgreSQL in order to, for example, execute the
> query that appears at the top of the PostGIS website:
> 
> SELECT superhero.name
> FROM city, superhero
> WHERE ST_Contains(city.geom, superhero.geom)
> AND city.name = 'Gotham';
> 
> - without also having to install vast numbers of unwanted
> GUI packages.  Would it be possible to downgrade some of the
> dependencies to "suggests", or perhaps offer a "lite" package
> that avoids them entirely?

No, we cannot do that for postgresql-9.5-postgis-2.2 package. We've
already moved the shp2pgsql-gui executable to its own postgis-gui
package to remove the X dependencies (via libgtk2.0-0) from the postgis
package, for postgresql-9.5-postgis-2.2 we don't have this option.

We may drop the OpenSceneGraph dependency from SFCGAL in the future when
it becomes incompatible with the OSG version in Debian, but for now it
stays. You'll need to provide better arguments for us to drop the OSG
dependency from SFCGAL than the above to convince of the need.

Library packages are not something to be afraid of, you are not required
to install a X server on your headless server. Some of its libraries are
required however for graphical operations, e.g. anything to do with
images (2D or 3D).

Kind Regards,

Bas

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--- End Message ---
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