Any clue or ideas on how to do ?...
FH
Le 2016-01-13 16:59, houssen a écrit :
> How to choose the FindHDF5.cmake to use ?
>
> My understanding (according to tutorials and comments found at the
> top of FindHDF5.cmake files) is that to use HDF5, I have to add
these
> 3 lines in the CMakeLists.txt of my project:
> FIND_PACKAGE ( HDF5 1.8.15 )
> TARGET_LINK_LIBRARIES ( myDSO PUBLIC ${HDF5_LIBRARIES} )
> TARGET_INCLUDE_DIRECTORIES ( myDSO PUBLIC ${HDF5_INCLUDE_DIRS} )
> My understanding is that all FindHDF5.cmake on all plateforms must
> always set HDF5_LIBRARIES and HDF5_INCLUDE_DIRS : this make things
> portable (one can compile on any computer with any version of
CMake
> and HDF5).
>
> I installed the last version of CMake in /tmp/local (the one I had
> was too old to support HDF5-1.8.15). Note that FindHDF5.cmake is
> found
> in /tmp/local/share/cmake-3.4/Modules (/tmp/local/share/cmake has
not
> been created).
> /tmp/cmake-3.4.1/BUILD> cmake
-DCMAKE_INSTALL_PREFIX:PATH=/tmp/local
> ..; make all install
> /tmp/cmake-3.4.1/BUILD> ls /tmp/local/share/
> aclocal cmake-3.4
> /tmp/cmake-3.4.1/BUILD> ls
> /tmp/local/share/cmake-3.4/Modules/FindHDF5.cmake
> /tmp/local/share/cmake-3.4/Modules/FindHDF5.cmake
>
> Now, with the last version of CMake (3.4), I can build and install
> the last version of HDF5 (1.8.15) in /tmp/local. Note that another
> FindHDF5.cmake has been created by the HDF5 install process in
> /tmp/local/share/cmake.
> /tmp> export CMAKE_ROOT=/tmp/local/share/cmake-3.4
> /tmp> export CMAKE_MODULE_PATH=/tmp/local/share/cmake-3.4/Modules
> /tmp> export CMAKE_PREFIX_PATH=/tmp/local
> /tmp> export PATH=/tmp/local/bin:$PATH
> /tmp> export LD_LIBRARY_PATH=/tmp/local/lib:$LD_LIBRARY_PATH
> /tmp/hdf5-1.8.15/BUILD> cmake --version
> cmake version 3.4.1
> /tmp/hdf5-1.8.15/BUILD> cmake
-DCMAKE_INSTALL_PREFIX:PATH=/tmp/local
> ..; make all install
> /tmp/hdf5-1.8.15/BUILD> ls /tmp/local/share/cmake/
> FindHDF5.cmake hdf5-config.cmake hdf5-config-version.cmake
> hdf5-targets.cmake hdf5-targets-noconfig.cmake
>
> OK, now, I am in a situation where I can use HDF5.
>
> First I don't set HDF5_DIR, so I am supposed to use the
> FindHDF5.cmake provided by CMake (in
> /tmp/local/share/cmake-3.4/Modules) : I have
DF5_hdf5_LIBRARY_RELEASE
> and HDF5_C_INCLUDE_DIR but NOT HDF5_LIBRARIES and
HDF5_INCLUDE_DIRS.
> /tmp/useHDF5/BUILD> rm -fr *; cmake ..; cmake -LA . | grep HDF5
> ...
> -- Found HDF5:
>
>
/tmp/local/lib/libhdf5.a;/usr/lib/x86_64-linux-gnu/libpthread.so;/usr/lib/
>
x86_64-linux-gnu/libz.so;/usr/lib/x86_64-linux-gnu/libdl.so;/usr/lib/x86_6
> 4-linux-gnu/libm.so (found suitable version "1.8.15", minimum
required is
> "1.8.15")
> -- Configuring done
> -- Generating done
> -- Build files have been written to: /tmp/useHDF5/BUILD
> 3:-- Build files have been written to: /tmp/useHDF5/BUILD
> 52:HDF5_CXX_COMPILER_EXECUTABLE:FILEPATH=/usr/bin/h5c++
> 53:HDF5_C_COMPILER_EXECUTABLE:FILEPATH=/usr/bin/h5cc
> 54:HDF5_C_INCLUDE_DIR:PATH=/tmp/local/include
> 55:HDF5_DIFF_EXECUTABLE:FILEPATH=/tmp/local/bin/h5diff
> 56:HDF5_DIR:PATH=HDF5_DIR-NOTFOUND
> 57:HDF5_Fortran_COMPILER_EXECUTABLE:FILEPATH=/usr/bin/h5fc
> 58:HDF5_IS_PARALLEL:BOOL=FALSE
> 59:HDF5_dl_LIBRARY_DEBUG:FILEPATH=HDF5_dl_LIBRARY_DEBUG-NOTFOUND
>
>
60:HDF5_dl_LIBRARY_RELEASE:FILEPATH=/usr/lib/x86_64-linux-gnu/libdl.so
>
61:HDF5_hdf5_LIBRARY_DEBUG:FILEPATH=HDF5_hdf5_LIBRARY_DEBUG-NOTFOUND
> 62:HDF5_hdf5_LIBRARY_RELEASE:FILEPATH=/tmp/local/lib/libhdf5.a
> 63:HDF5_m_LIBRARY_DEBUG:FILEPATH=HDF5_m_LIBRARY_DEBUG-NOTFOUND
>
64:HDF5_m_LIBRARY_RELEASE:FILEPATH=/usr/lib/x86_64-linux-gnu/libm.so
>
>
65:HDF5_pthread_LIBRARY_DEBUG:FILEPATH=HDF5_pthread_LIBRARY_DEBUG-NOTFOUND
>
>
66:HDF5_pthread_LIBRARY_RELEASE:FILEPATH=/usr/lib/x86_64-linux-gnu/libpthr
> ead.so
67:HDF5_z_LIBRARY_DEBUG:FILEPATH=HDF5_z_LIBRARY_DEBUG-NOTFOUND
>
68:HDF5_z_LIBRARY_RELEASE:FILEPATH=/usr/lib/x86_64-linux-gnu/libz.so
>
> Now I use HDF5_DIR to point at the FindHDF5.cmake created by the
> install of HDF5: I have HDF5_C_LIBRARY but NOT HDF5_LIBRARIES and
> HDF5_INCLUDE_DIRS.
> /tmp/useHDF5/BUILD> export HDF5_DIR=/tmp/local/share/cmake
> /tmp/useHDF5/BUILD> rm -fr *; cmake ..; cmake -LA . | grep HDF5
> ...
> -- Found HDF5: /tmp/local/lib/libhdf5.a (found suitable version
> "1.8.15", minimum required is "1.8.15")
> -- Configuring done
> -- Generating done
> -- Build files have been written to: /tmp/useHDF5/BUILD
> 3:-- Build files have been written to: /tmp/useHDF5/BUILD
> 52:HDF5_CXX_COMPILER_EXECUTABLE:FILEPATH=/usr/bin/h5c++
> 53:HDF5_C_COMPILER_EXECUTABLE:FILEPATH=/usr/bin/h5cc
> 54:HDF5_C_LIBRARY:PATH=/tmp/local/lib/libhdf5.a
> 55:HDF5_DIFF_EXECUTABLE:FILEPATH=/tmp/local/bin/h5diff
> 56:HDF5_DIR:PATH=/tmp/local/share/cmake
> 57:HDF5_Fortran_COMPILER_EXECUTABLE:FILEPATH=/usr/bin/h5fc
>
> Now, according to this thread
>
>
http://stackoverflow.com/questions/20746936/cmake-of-what-use-is-find-pack
> age-if-you-need-to-specify-cmake-module-path-an, I give a try to
the CMake
> CONFIG mode.
>
> Using the HDF5Config.cmake from CMake, I get an (expected) error:
> /tmp/useHDF5/BUILD> export HDF5_DIR=
> /tmp/useHDF5/BUILD
>
>>> rm -fr *; cmake ..; cmake -LA . | grep HDF5
>
> ...
>
> CMake Warning at CMakeLists.txt:4 (FIND_PACKAGE):
> Could not find a package configuration file provided by "HDF5"
>
> (requested
>
> version 1.8.15) with any of the following names:
> HDF5Config.cmake
> hdf5-config.cmake
>
> Using the HDF5Config.cmake installed by HDF5:
> /tmp/useHDF5/BUILD> export HDF5_DIR=/tmp/local/share/cmake
> /tmp/useHDF5/BUILD> rm -fr *; cmake ..; cmake -LA . | grep HDF5
> ...
> -- Configuring done
> -- Generating done
> -- Build files have been written to: /tmp/useHDF5/BUILD
> 3:-- Build files have been written to: /tmp/useHDF5/BUILD
> 52:HDF5_DIR:PATH=/tmp/local/share/cmake
>
> Why can't I have HDF5_LIBRARIES and HDF5_INCLUDE_DIRS set for me
by
> the CMake of HDF5 ?
>
> Thanks,
>
> FH
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