Here is the code configuration in brief:

CMAKE_BUILD_TYPE                 Release
CMAKE_INSTALL_PREFIX             /home/local/ISDADS/sgs475/Nektar/build/dist
CONVERT                          /usr/bin/convert
HAS_PATCH                        /usr/bin/patch
MAKE_EXECUTABLE                  /usr/bin/make
NEKTAR_BUILD_DEMOS               ON
NEKTAR_BUILD_DOC                 OFF
NEKTAR_BUILD_LIBRARY             ON
NEKTAR_BUILD_PYTHON              ON
NEKTAR_BUILD_SOLVERS             ON
NEKTAR_BUILD_TESTS               ON
NEKTAR_BUILD_TIMINGS             ON
NEKTAR_BUILD_UNIT_TESTS          ON
NEKTAR_BUILD_UTILITIES           ON
NEKTAR_DISABLE_BACKUPS           OFF
NEKTAR_SOLVER_ACOUSTIC           ON
NEKTAR_SOLVER_ADR                ON
NEKTAR_SOLVER_CARDIAC_EP         ON
NEKTAR_SOLVER_COMPRESSIBLE_FLO   ON
NEKTAR_SOLVER_DIFFUSION          ON
NEKTAR_SOLVER_DUMMY              ON
NEKTAR_SOLVER_ELASTICITY         ON
NEKTAR_SOLVER_IMAGE_WARPING      ON
NEKTAR_SOLVER_INCNAVIERSTOKES    ON
NEKTAR_SOLVER_MMF                ON
NEKTAR_SOLVER_PULSEWAVE          ON
NEKTAR_SOLVER_SHALLOW_WATER      ON
NEKTAR_SOLVER_VORTEXWAVE         ON
NEKTAR_TEST_ALL                  ON
NEKTAR_TEST_FORCEMPIEXEC         OFF
NEKTAR_TEST_USE_HOSTFILE         OFF
NEKTAR_USE_ARPACK                ON
NEKTAR_USE_CCM                   OFF
NEKTAR_USE_CFI                   OFF
NEKTAR_USE_CWIPI                 OFF
NEKTAR_USE_FFTW                  ON
NEKTAR_USE_HDF5                  OFF
NEKTAR_USE_MESHGEN               ON
NEKTAR_USE_METIS                 OFF
NEKTAR_USE_MPI                   ON
NEKTAR_USE_PETSC                 ON

NEKTAR_USE_PYTHON3               OFF
NEKTAR_USE_SCOTCH                ON
NEKTAR_USE_SYSTEM_BLAS_LAPACK    ON
NEKTAR_USE_VTK                   ON
NEKTAR_UTILITY_FIELDCONVERT      ON
NEKTAR_UTILITY_NEKMESH           ON
OCE_DIR                          /usr/lib/x86_64-linux-gnu/oce-0.17
THIRDPARTY_BUILD_ARPACK          OFF
THIRDPARTY_BUILD_BLAS_LAPACK     OFF
THIRDPARTY_BUILD_BOOST           OFF
THIRDPARTY_BUILD_FFTW            OFF
THIRDPARTY_BUILD_GSMPI           ON
THIRDPARTY_BUILD_OCE             OFF
THIRDPARTY_BUILD_PETSC           OFF
THIRDPARTY_BUILD_SCOTCH          OFF
THIRDPARTY_BUILD_TETGEN          ON
THIRDPARTY_BUILD_TINYXML         ON
THIRDPARTY_BUILD_TRIANGLE        ON
THIRDPARTY_BUILD_ZLIB            ON
THIRDPARTY_USE_SSL               OFF
ZLIB_LIBRARIES                   /home/local/ISDADS/sgs475/Nektar/build/ThirdParty/zlib-1.2.7

ZLIB_LIBRARIES_DEBUG /home/local/ISDADS/sgs475/Nektar/build/ThirdParty/zlib-1.2.7

Best,

Oliviu

On Thursday, August 15, 2019, 1:48:37 PM GMT+1, Jeremy Cohen <jeremy.cohen@imperial.ac.uk> wrote:

Thanks Oliviu, can you also provide some information on your CMake configuration - what CMake options do you have switched on/off? In particular, it would be useful to know which of the THIRDPARY_BUILD_ options you have switched on and whether you're using boost and zlib from Ubuntu packages or whether they're being built as part of the Nektar build.

Regards,

Jeremy

On 15 Aug 2019, at 13:44, Oliviu Sugar <oliviu_sugar@yahoo.com> wrote:

Hello Jeremy,

Here is some additional information:

Linux distribution and version: Ubuntu 18.04.3

Nektar version: cloned latest Master branch from the repository

CMake: 3.10.2

Best regards,

Oliviu

On Thursday, August 15, 2019, 1:34:32 PM GMT+1, Jeremy Cohen <jeremy.cohen@imperial.ac.uk> wrote:

Hi Oliviu,

It looks like this is probably something to do with the version of libpng that you're using requiring zlib to be linked and this is not being picked up for some reason.

Can you give us some more information about the environment you're working on since that will assist in trying to identify the problem. e.g. can you please provide the Linux distribution and version that you're working on, the version of Nektar++ you're trying to build and whether you've cloned from GitHub or downloaded a source tarball from the website. Can you also tell us what CMake configuration you're using.

Thanks,

Jeremy

On 15 Aug 2019, at 13:25, Oliviu Sugar <oliviu_sugar@yahoo.com> wrote:

Dear all,

I get the following error when compiling:

//usr/lib/x86_64-linux-gnu/libpng16.so.16: undefined reference to `inflateValidate@ZLIB_1.2.9'
collect2: error: ld returned 1 exit status
utilities/NekMesh/CMakeFiles/NekMesh.dir/build.make:1083: recipe for target 'utilities/NekMesh/NekMesh' failed
make[2]: *** [utilities/NekMesh/NekMesh] Error 1
CMakeFiles/Makefile2:618: recipe for target 'utilities/NekMesh/CMakeFiles/NekMesh.dir/all' failed
make[1]: *** [utilities/NekMesh/CMakeFiles/NekMesh.dir/all] Error 2

Can anyone point me in the right direction about what could be causing this issue?

Many thanks,

Oliviu

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