[Ubuntu] ubuntu configure options for gdal

[Hamish]

Jason wrote:
> dpkg-shlibdeps: warning: dependency on libNCSCnet.so.0 could
> be avoided if [...] were not uselessly linked
> against it (they use none of its symbols).

don't worry about those, they are just courtesy notes to packagers about
things which could be made more efficient in future.

>     At any rate, the packages built.  I force purged gdal-bin, libgdal1,
> and python-gdal then installed the newly built copies. 
> QGIS was then able to open a sid file.  Progress!  Now for
> testing the other formats as well as sid more thoroughly.

great, glad to see that a bit of tenacity paid off! (and good for others
to know that it still works)  I think knowing how to rebuild packages
with a slight tweak is a handy tool to have in your toolbox, so at
minimum I hope there was some benefit/reusable knowledge in it for you. :)
It is at the same time an incredibly complex dance and a series of 2-3
simple one line commands to make it all happen.

you'll want to put a 'hold' on your packages so that they don't get auto-
matically upgraded if a new edition gets uploaded to the UbuntuGIS ppa:

  sudo su
  echo "package_name_here hold" | dpkg --set-selections


if you see spots in the UbuntuGIS wiki where the existing tutorial is
out of date, please feel free to update/improve it for next time.


regards,
Hamish