HDF5 transition

[Francesco P. Lovergine]

Dear RMs

it is now time to start with a transition of HDF5 library in unstable,
after months of permanence in experimental. The 1.8.3 is built in 1.6
compatible mode, so it should not require changes to sources.

Dependent maintainers for libhdf5-serial-1.6.6-0:

Gürkan Sengün <[hidden email]> (gnudatalanguage)
Helen Faulkner <[hidden email]> (labplot)
Gerber van der Graaf <[hidden email]> (libgpiv pygpiv)
Debian PhotoTools Maintainers <[hidden email]> (pfstools)
Bradley Smith <[hidden email]> (mathgl)
Alastair McKinstry <[hidden email]> (cdo)
Debian GIS Project <[hidden email]> (gdal h5utils mapserver)
Debian Science Team <[hidden email]> (ecs libcgns)
Thorsten Alteholz <[hidden email]> (meep)
Josselin Mouette <[hidden email]> (tessa)
Aurelien Jarno <[hidden email]> (med-fichier)
Debian Octave Group <[hidden email]> (dynare
 octave3.0 octave3.1 octave3.2 octave-ad octave-ann octave-audio
 octave-combinatorics octave-communications octave-econometrics
 octave-fixed octave-ftp octave-general octave-graceplot octave-gsl
 octave-image octave-io octave-linear-algebra octave-miscellaneous
 octave-multicore octave-nan octave-nlwing2 octave-nurbs octave-octcdf
 octave-octgpr octave-odepkg octave-optim octave-optiminterp
 octave-parallel octave-pdb octave-secs1d octave-secs2d octave-signal
 octave-sockets octave-specfun octave-symband octave-symbolic
 octave-triangular octave-xraylib semidef-oct)
Dirk Eddelbuettel <[hidden email]> (r-cran-hdf5)
Debian Scientific Computing Team <[hidden email]> (paraview)
Debian QA Group <[hidden email]> (mpb)
Thibaut Paumard <[hidden email]> (yorick-hdf5)
Francesc Altet <[hidden email]> (pytables)
Andrew Ross <[hidden email]> (plplot)

They already depend on libhdf5-serial-dev, so a simple rebuild should suffice
for a smooth transition. If you had not concerns about, I would upload in
sid the hdf5 1.8.3 ASAP. Note that upstream moved to a proper SONAME
support, so distributed new libraries will drop debian-specific versioning in their
names, still used in 1.6 series. All that should be transparent to other
packages.

----- Forwarded message from "Francesco P. Lovergine" <[hidden email]> -----

Date: Fri, 13 Mar 2009 22:56:57 +0100
From: "Francesco P. Lovergine" <[hidden email]>
To: [hidden email],
        Debian-Med Packaging Team <[hidden email]>,
        Debian Octave Group <[hidden email]>
Subject: Re: [DebianGIS] HDF5 changes
User-Agent: Mutt/1.5.18 (2008-05-17)

On Fri, Mar 13, 2009 at 10:16:37PM +0100, Francesco P. Lovergine wrote:

> In the incoming weeks HDF5 libraries should also be updated. As you
> could already known HDF Group is supporting both 1.6 (legacy) and
> the new 1.8 series, which are not full compatible each other.
> Applications that currently supports HDF5 1.6
> could need a source update as detailed in
> http://www.hdfgroup.org/HDF5/faq/bkfwd-compat.html for both some
> structures and API functions.
>
> My own idea is migrating hdf5 source package to 1.8.2 and simply
> drop 1.6 support. The new package will be available for a while
> in the experimental staging area, before uploading to unstable.
> Of course, you should check in the meantime if your source
> package needs updating and possibly provide a patch.
>
> If you had problems with this updating plan, please give
> a feedback as soon as possibile.
>
> Note that HDF5 1.8.1+ is a pre-requisite for NetCDF-4, so a
> new transition will need to be considered on that side
> in a not so far future.
>

Some clarifications: I mean that the 1.6 legacy libraries will be dropped,
but the 1.8 will be used in compatibility mode anyway.

http://www.hdfgroup.uiuc.edu/HDF5/doc_1.8pre/doc/RM/APICompatMacros.html

The _default_ profile will be choosen at compile time, which will provide
1.6 as default API, with 1.8 available by explicit call.

Cheers.

--
Francesco P. Lovergine

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----- End forwarded message -----

--
Francesco P. Lovergine

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