Hi,
I ran into a weird error about linking a module test against its module.
Building the test driver fails with this error:
/home/espakm/src/NifTK/Code/Gui/MITK/Modules/XnatRest/Testing/XnatRestTest.cpp:52:
undefined reference to `initXnatRest()'
The function is defined in the module.
However, I can link the test against a library that I created manually from
the same sources. (With the add_library CMake function instead of the
MITK_CREATE_MODULE macro.)
Here is the CMakeLists.txt of the module:
------------------------------------------------------------------------------------------------------------------------
# These should be automatically included, but it is not.
include(${CMAKE_SOURCE_DIR}/CMake/PackageDepends/MITK_curl_Config.cmake)
MITK_CREATE_MODULE(XnatRest
EXPORT_DEFINE XnatRest_EXPORT
PACKAGE_DEPENDS curl
)
# This library is built from the same sources as the module:
add_library(XnatRest2 ${CPP_FILES})
target_link_libraries(XnatRest2 curl)
# add testing dir
add_subdirectory(Testing)
------------------------------------------------------------------------------------------------------------------------
And this is the CMakeLists.txt from the Testing directory:
------------------------------------------------------------------------------------------------------------------------
MITK_CREATE_MODULE_TESTS()
# This does not help:
#target_link_libraries(XnatRestTestDriver XnatRest)
# Only this solves the linker error:
target_link_libraries(XnatRestTestDriver XnatRest2)
------------------------------------------------------------------------------------------------------------------------
Does somebody have an idea why I cannot link the test against the module,
but can do it to a library that is built from the same sources as the
module?
I put a string constant into the definition of the initXnatRest() function,
just to check if it is built into both libraries. It is, the strings
command has found it in both.
I also added a debugging statement in the mitkMacroModuleTests.cmake file.
Around line 35 I printed the add_executable and target_link_libraries
statements:
set(TESTDRIVER ${MODULE_NAME}TestDriver)
message(STATUS "add_executable(${TESTDRIVER} ${MODULETEST_SOURCE}
${MODULE_TEST_GENERATED_MOC_CPP} ${TEST_CPP_FILES})")
add_executable(${TESTDRIVER} ${MODULETEST_SOURCE}
${MODULE_TEST_GENERATED_MOC_CPP} ${TEST_CPP_FILES})
message(STATUS "target_link_libraries(${TESTDRIVER} ${MODULE_PROVIDES}
${ALL_LIBRARIES})")
target_link_libraries(${TESTDRIVER} ${MODULE_PROVIDES} ${ALL_LIBRARIES})
The output:
-- add_executable(XnatRestTestDriver
XnatRestTestDriver.cpp;XnatRestTest.cpp )
-- target_link_libraries(XnatRestTestDriver XnatRest
curl;Mitk;mbilog;tinyxml;ITKAlgorithms;ITKStatistics;ITKFEM;ITKQuadEdgeMesh;vtkGraphics;vtkCommon;vtkFiltering;vtkftgl;vtkGraphics;vtkHybrid;vtkImaging;vtkIO;vtkParallel;vtkRendering;vtkVolumeRendering;vtkWidgets;vtkjpeg;vtkpng;vtkzlib;vtkexpat;vtkfreetype)
I don't see anything wrong with this.
Any idea?
Thank you very much,
Miklos
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