Bug#613056: Please compile gmsh with support for .med files

[trophime]

On Tue, 2011-03-29 at 21:59 +0200, Sylvestre Ledru wrote:
> Le mardi 29 mars 2011 à 21:45 +0200, Andrea Palazzi a écrit :
> > Package: gmsh
> > Version: 2.5.0.dfsg-2
> > Followup-For: Bug #613056
> > 
> > 
> > Is there someone taking care of this? In the current binaries (and
> > also in dfsg-3) .med support is not enabled, however if I compile it
> > on my host support is enabled...
> How can I test it ?
> 
> In the build log, I can see the define: -DENABLE_MED=ON
> https://buildd.debian.org/fetch.cgi?&pkg=gmsh&ver=2.5.0.dfsg-3&arch=i386&stamp=1300706782&file=log
> 
> thanks
> S
> 

I think I found where the problem comes from:

Even if the flaf ENABLE_MED is ON it seems that med libraries are not
correctly detected. If we take a look a CMakeLists.txt in gmsh main
directory we see :

if(ENABLE_MED OR ENABLE_CGNS)
  find_library(HDF5_LIB hdf5)
  if(HDF5_LIB)
    if(ENABLE_MED)
      find_library(MED_LIB med)
      if(MED_LIB)
        set_config_option(HAVE_MED "Med")
        list(APPEND EXTERNAL_LIBRARIES ${MED_LIB})
      endif(MED_LIB)
    endif(ENABLE_MED)    
    if(ENABLE_CGNS)
      find_library(CGNS_LIB cgns)
      if(CGNS_LIB)
        set_config_option(HAVE_LIBCGNS "Cgns")
        list(APPEND EXTERNAL_LIBRARIES ${CGNS_LIB})
      endif(CGNS_LIB)
    endif(ENABLE_CGNS)    
    if(MED_LIB OR CGNS_LIB)
      list(APPEND EXTERNAL_LIBRARIES ${HDF5_LIB})
      find_library(SZ_LIB szlib)
      if(SZ_LIB)
        list(APPEND EXTERNAL_LIBRARIES ${SZ_LIB})
      endif(SZ_LIB)
      if(NOT HAVE_LIBZ) # necessary for non-GUI builds
        find_package(ZLIB)
        if(ZLIB_FOUND)
          set_config_option(HAVE_LIBZ "Zlib")
          list(APPEND EXTERNAL_LIBRARIES ${ZLIB_LIBRARIES})
        endif(ZLIB_FOUND)
      endif(NOT HAVE_LIBZ)
    endif(MED_LIB OR CGNS_LIB)
  endif(HDF5_LIB)
endif(ENABLE_MED OR ENABLE_CGNS)

So we can deduce that the med libraries would only be checked if hdf5
lib is found!

In the control file there is no direct refence to a package containing
any libhdf5.so. There should be a BuildDepends on libhdf5-dev |
libhdf5-openmpi-dev...

So my guess is that adding libhdf5-dev | libhdf5-openmpi-dev... in
debian/control would fix the problem.

Best
C.

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