Bug#686926: [Pkg-octave-devel] Bug#686926: Bug#686926: liboctave-dev: creates broken .oct files when the OpenMPI flavor of HDF5 (libhdf5-openmpi-dev) is installed

[Mike Miller]

On Mon, Sep 10, 2012 at 2:46 PM, Thomas Weber wrote:
> On Fri, Sep 07, 2012 at 09:11:34AM -0400, Mike Miller wrote:
>> mkoctfile -DMPICH_SKIP_MPICXX=1 -DOMPI_SKIP_MPICXX=1 helloworld.cc
>>
>> I don't know enough about HDF5, but if it doesn't make use of the MPI
>> C++ bindings at all, I'd argue this should be reassigned to hdf5
>> upstream so H5public.h would now contain:
>>
>> #ifdef H5_HAVE_PARALLEL
>> #   define MPICH_SKIP_MPICXX 1
>> #   define OMPI_SKIP_MPICXX 1
>> #   include <mpi.h>
>> #endif
>
> Is my understanding correct that if I want to use HDF5 and one of MPICH
> or MPI with the C++ interface, I have lost?

Could be, I hadn't thought through all the unintended consequences yet.

On the flip side, the way it is now if I want to compile C++ with just
HDF5, I have to link in libraries that I don't really need.

-- 
mike