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IDProjectCategoryView StatusDate SubmittedLast Update
0014934VTK(No Category)public2014-08-14 09:532014-10-02 13:19
ReporterAlex Zawadzki 
Assigned ToMarcus D. Hanwell 
PrioritynormalSeverityminorReproducibilityhave not tried
StatusclosedResolutionfixed 
PlatformOSOS Version
Product Version 
Target VersionFixed in Version 
Summary0014934: Basic project build in VTK 6.2 has linker problems
DescriptionMy example project failed to compile, error-ing out at linker stage. I was trying to follow the documentation here: http://www.vtk.org/Wiki/VTK/Build_System_Migration [^]

My CMakeLists.txt (well, the relevant bits):
###################
find_package(VTK 6.2 EXACT REQUIRED NO_MODULE)
include(${VTK_USE_FILE})
find_package(GLEW REQUIRED)
set_property(DIRECTORY APPEND PROPERTY COMPILE_DEFINITIONS ${VTK_DEFINITIONS})
include_directories(
  ${VTK_INCLUDE_DIRS}
  ${GLEW_INCLUDE_DIR}
  ${CMAKE_CURRENT_SOURCE_DIR}
)

####################
# Make my_target
####################

set(EXE my_target)
set(SOURCES
  my_target.cpp
)
add_executable(${EXE} ${SOURCES})
target_link_libraries(${EXE} ${VTK_LIBRARIES} ${GLEW_LIBRARY} )

###################


The linker errors generated:

/usr/bin/ld: cannot find -lvtkWrappingTools
/usr/bin/ld: cannot find -lvtkGUISupportQt
/usr/bin/ld: cannot find -lvtkWrappingPythonCore
/usr/bin/ld: cannot find -lvtkFiltersPython
/usr/bin/ld: cannot find -lvtkGUISupportQtSQL
/usr/bin/ld: cannot find -lvtkRenderingQt
/usr/bin/ld: cannot find -lvtkglew
/usr/bin/ld: cannot find -lvtkGUISupportQtOpenGL
/usr/bin/ld: cannot find -lvtkLocalExample
/usr/bin/ld: cannot find -lvtkViewsQt
/usr/bin/ld: cannot find -lvtkoggtheora
/usr/bin/ld: cannot find -lvtkGUISupportQtWebkit

My guess as to what's going on:
The default set of libraries is a bit over-zealous, and includes things that never got built. For example, I built the VTK 6.2 nightly with no python or Qt wrapping, so was surprised to see the linker looking for that sort of thing.

One current work-around is to override the default by specifying exact stuff (modules/groups/libraries?).

Hope that's useful! Please let me know if more details would help.
Tagshackaton
ProjectTBD
Typeincorrect functionality
Attached Files

 Relationships

  Notes
(0033421)
Marcus D. Hanwell (developer)
2014-10-02 09:30

 I think that we need to reduce the default set of libraries, but my general advice here is that people should be specifying the things they actually want to use. The COMPONENTS is recursive, and therefore asking for vtkRenderingOpenGL will bring in a large number of dependent modules.
(0033490)
Marcus D. Hanwell (developer)
2014-10-02 13:19

 You must have a dirty build tree, I verified that upon changing the VTK build options to only build vtkCommon VTK_LIBRARIES only has vtkCommonCore;vtksys whereas it had previously been building all libraries. This was tested on Linux (looks like your output), if you can provide details to reproduce this then please let me know, but our current build system fully supports changing the build tree. It is also possible that your build failed, as you are seeing a library added to VTK_LIBRARIES that was not exported - hence the -l which would never appear for exported targets (as VTK does).

If you look at the guide, it also encourages you to specify COMPONENTS in your find_package call, but this looks like an issue with a bad build tree to me.

 Issue History
Date Modified Username Field Change
2014-08-14 09:53 Alex Zawadzki New Issue
2014-10-01 20:25 Berk Geveci Tag Attached: hackaton
2014-10-01 20:25 Berk Geveci Assigned To => Marcus D. Hanwell
2014-10-02 09:30 Marcus D. Hanwell Note Added: 0033421
2014-10-02 13:19 Marcus D. Hanwell Note Added: 0033490
2014-10-02 13:19 Marcus D. Hanwell Status backlog => closed
2014-10-02 13:19 Marcus D. Hanwell Resolution open => fixed

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