NekMesh compilation error

Oliviu Sugar

15 Aug 2019 15 Aug '19

12:25 p.m.

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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Jeremy Cohen

15 Aug 15 Aug

12:34 p.m.

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 _______________________________________________ Nektar-users mailing list Nektar-users@imperial.ac.uk https://mailman.ic.ac.uk/mailman/listinfo/nektar-users

Oliviu Sugar

12:44 p.m.

Hello Jeremy, Here is some additional information:Linux distribution and version: Ubuntu 18.04.3Nektar version: cloned latest Master branch from the repositoryCMake: 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 _______________________________________________ Nektar-users mailing list Nektar-users@imperial.ac.uk https://mailman.ic.ac.uk/mailman/listinfo/nektar-users

Jeremy Cohen

12:48 p.m.

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 _______________________________________________ Nektar-users mailing list Nektar-users@imperial.ac.uk https://mailman.ic.ac.uk/mailman/listinfo/nektar-users

Oliviu Sugar

12:57 p.m.

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 18.04.3Nektar version: cloned latest Master branch from the repositoryCMake: 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 _______________________________________________ Nektar-users mailing list Nektar-users@imperial.ac.uk https://mailman.ic.ac.uk/mailman/listinfo/nektar-users

Jeremy Cohen

2:18 p.m.

Hi Oliviu, Thanks for providing the additional information and for reporting this issue. I've been able to reproduce the problem on Ubuntu 18.04.3. It looks like this only affects builds of NekMesh that include the meshgen functionality so if you're building without this, the problem doesn't occur. The issue seems to be caused by an incompatibility between the third party build version of zlib that Nektar++ uses (v1.2.7) and the libpng16.so.16 on Ubuntu 18.04. There's a little more info on the issue in this bug report: https://bugs.launchpad.net/ubuntu/+source/libpng1.6/+bug/1780233 I note that you have THIRDPARTY_BUILD_ZLIB set to ON in your configuration below. The solution is to set this to OFF and ensure that you have the zlib1g-dev Ubuntu package installed on your system. In order to resolve the problem, you'll probably need to completely clean your build directory and also clean the contents of the nektar/ThirdParty directory. Then you'll need to reconfigure with CMake and build again. When you reconfigure with CMake, you should see that the THIRDPARTY_BUILD_ZLIB option is set to OFF and if you are using the CMake GUI (via ccmake), you should be able to press "t" to see the advanced options and see that the ZLIB_LIBRARY_RELEASE option has been set to something like /usr/lib/x86_64-linux-gnu/libz.so (i.e. the system installed zlib). Hope this helps and resolves the problem. Let me know if you're still having problems with the build. I'll file an issue for the zlib problem in the Nektar++ GitLab. Regards, Jeremy On 15 Aug 2019, at 13:57, Oliviu Sugar <oliviu_sugar@yahoo.com> wrote:

...

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 _______________________________________________ Nektar-users mailing list Nektar-users@imperial.ac.uk https://mailman.ic.ac.uk/mailman/listinfo/nektar-users

Oliviu Sugar

2:41 p.m.

Hello Jeremy, Installing zlib system-wide (including the -dev package) solved the problem, MekMesh compiled successfully with mesh-gen functionality. Many thanks for your help. Oliviu On Thursday, August 15, 2019, 3:18:50 PM GMT+1, Jeremy Cohen <jeremy.cohen@imperial.ac.uk> wrote: Hi Oliviu, Thanks for providing the additional information and for reporting this issue. I've been able to reproduce the problem on Ubuntu 18.04.3. It looks like this only affects builds of NekMesh that include the meshgen functionality so if you're building without this, the problem doesn't occur. The issue seems to be caused by an incompatibility between the third party build version of zlib that Nektar++ uses (v1.2.7) and the libpng16.so.16 on Ubuntu 18.04. There's a little more info on the issue in this bug report: https://bugs.launchpad.net/ubuntu/+source/libpng1.6/+bug/1780233 I note that you have THIRDPARTY_BUILD_ZLIB set to ON in your configuration below. The solution is to set this to OFF and ensure that you have the zlib1g-dev Ubuntu package installed on your system. In order to resolve the problem, you'll probably need to completely clean your build directory and also clean the contents of the nektar/ThirdParty directory. Then you'll need to reconfigure with CMake and build again. When you reconfigure with CMake, you should see that the THIRDPARTY_BUILD_ZLIB option is set to OFF and if you are using the CMake GUI (via ccmake), you should be able to press "t" to see the advanced options and see that the ZLIB_LIBRARY_RELEASE option has been set to something like /usr/lib/x86_64-linux-gnu/libz.so (i.e. the system installed zlib). Hope this helps and resolves the problem. Let me know if you're still having problems with the build. I'll file an issue for the zlib problem in the Nektar++ GitLab. Regards, Jeremy On 15 Aug 2019, at 13:57, Oliviu Sugar <oliviu_sugar@yahoo.com> wrote: 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 18.04.3Nektar version: cloned latest Master branch from the repositoryCMake: 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 _______________________________________________ Nektar-users mailing list Nektar-users@imperial.ac.uk https://mailman.ic.ac.uk/mailman/listinfo/nektar-users

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