[Kst] NetCDF packages

Appel, Lynton Lynton.Appel at ccfe.ac.uk
Wed Oct 15 14:06:44 UTC 2014

Hi Christian,
Is the  (netcdf-c++4) version the one I wrote or is it the original C++ 
On 15/10/2014 14:58, Cristian Morales Vega wrote:
> On 15 October 2014 14:15, Christian Trippe <ctrippe at opensuse.org> wrote:
>> Hi Nicolas,
>>> On 14/10/2014 20:55, Nicolas Brisset wrote:
>>>> Hi Christian/Jan,
>>>> You may have seen on the Kst list that we're trying to get NetCDF-4 to
>>>> work better, which requires to compile NetCDF it with HDF5 support. Under
>>>> Linux, at least on OpenSuse, apparently there is HDF5 support. However, I
>>>> tried to work with one file making use of newer NetCDF-4 features and I
>>>> noticed that the C++ wrapper we use is obsolete. Apparently, since
>>>> version 4.2 the C++ library has been improved by Lynton Appel (which I'm
>>>> putting in CC in case he has news from the packaging front) and split out
>>>> of the base package, see
>>>> http://www.unidata.ucar.edu/downloads/netcdf/netcdf-cxx/index.jsp and
>>>> http://www.unidata.ucar.edu/software/netcdf/docs/cxx4/
>>>> Questions:
>>>> 1) do you know who's maintaining the NetCDF packages?
>> The NetCDF C++ library is maintained by Christian Morales Vega (in CC) (at
>> least osc says so)
> I have never maintained netcdf, but I created the netcdf-cxx package
> (and there should be also a netcdf-cxx4 one).
> Originally the C++ support was part of the same tarball than the C
> support. But in version 4.2 C++ support was split... And it wasn't
> just split in a C++ tarball, but in two of them. A version supporting
> NetCDF-3 (netcdf-c++) and a version supporting NetCDF-4
> ((netcdf-c++4).
> In request https://build.opensuse.org/request/show/113047 ocefpaf said
> that he was going to add a new package with the C++ support "soon",
> but I guess it never happened.
> Meanwhile we were close to a release, and we were losing HDF5 support
> in kst. And kst did only support the NetCDF-3 version of the C++
> wrapper. So I created a package for the NetCDF-3 version of the C++
> wrapper specifically to fix kst. I was hoping kst would soon update
> its code to support the NetCDF-4 version and my package could be
> dropped.
> Since there was no user of the NetCDF-4 version of the C++ wrapper
> neither me, not anybody else apparently, ever created a package for
> it.
> Since then my life has changed a lot, now I got a child and a lot less
> free time available. So I have not looked into this at all since then
> (2012).
>>>> 2) do you think it would be an issue to update to this new wrapper?
>> I don't know of another user of libnetcdf_c++.so.4 except of kst in openSUSE,
>> so we probably can update to the version which is required by kst.
> Yes. It was always the plan.
> I downloaded the tarballs from
> http://www.unidata.ucar.edu/downloads/netcdf/netcdf-cxx/index.jsp
> My package is named netcdf-cxx, following the tarball nomenclature
> there should be another one named netcdf-c++4. But I'm not sure the
> libraries are correctly versioned to support both of them at the same
> time. Still, netcdf-cxx should probably be dropped.

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