Linking issues compiling example plugin with paraview-plugin-builder

ParaView Support
1

Hello,

I am trying to build and load the ElevationFilter from the Examples directory. Build completes successfully but loading the plugin from the GUI returns the following error:

ERROR: In /home/buildslave/dashboards/buildbot/paraview-pvbinsdash-linux-shared-release_superbuild/build/superbuild/paraview/src/Remoting/Core/vtkPVPluginLoader.cxx, line 519

vtkPVPluginLoader (0x62fb1e0): libElevationFilters.so: cannot open shared object file: No such file or directory

Steps followed:

  1. Use paraview-plugin-builder to build a docker image for paraview 5.8.0
  2. copy Examples/Plugins/ElevationFilter directory from master branch
  3. run ./run_build_plugin.sh -d ElevationFilter v5.8.0
  4. the above command completes and generates ElevationFilter.so libElevationFilters.so
  5. Open Paraview 5.8.0 (downloaded from https://www.paraview.org/download/ )
  6. Attempt to load the plugin (ElevationFilter.so) through the GUI.

Note:
ldd ElevationFilter.so returns:

$ ldd ElevationFilter.so 
...
       libElevationFilters.so (0x00007f6e818de000)
...

System:
Ubuntu 16.04.06, 4.4.0-176-generic

Thank you.

2

this example produce two .so files that you have to recover and place together in a folder.

ElevationFilter.so libElevationFilters.so

It may be nice to improve paraview-plugin-builder to make that clearer.

You can modify this example quite easily to makes it link statically with the second lib so this is not needed.

3

Thank you for the quick reply.
When I tried to load ElevationFilter.so both of the .so files were in the same directory. I tried also to put them in ./bin/plugins and ./lib/plugins/ but had no luck.

It looks however that adding

set(CMAKE_INSTALL_RPATH $ORIGIN)
set(CMAKE_BUILD_WITH_INSTALL_RPATH TRUE)

in the top level CMakeLists.txt solves the issue (at least on my platform).

4

Looks a platform specific issue then. Thanks for sharing.

Tbh I tend to build my internal module lib statically to avoid needing to move around multiple files.

Done with :

vtk_module_add_module(module
  FORCE_STATIC
  ...