[Ctk-developers] DCMTK_DIR is found incorrectly

Wed Oct 2 11:38:45 EDT 2013

Hi Csaba,

In CTKConfig, the variable "CMAKE_MODULE_PATH" is a CMake global variable
that is empty by default. On the other hand "CTK_CMAKE_UTILITIES_DIR"
should not be empty as illustrated below:

$ cat ../CTKConfig.cmake | ack -i "set\(CTK_CMAKE_UTILITIES_DIR"
SET(CTK_CMAKE_UTILITIES_DIR "/home/jchris/Projects/CTK/Utilities/CMake")

Otherwise, you will find below the result of my experiment. When
configured, CTK found the expected DCMTK.

On Ubuntu 13.04 using CMake 2.8.11.2, after installing the package
"python2.7-dev" doing so the following works.

Note that I didn't enable CTK_ENABLE_ALL since I didn't the build system to
build VTK or ITK components. Instead, I passed the following options:
  -DCTK_ENABLE_Python_Wrapping:BOOL=ON
  -DCTK_ENABLE_DICOM:BOOL=ON
  -DCTK_BUILD_EXAMPLES

$ git clone git at github.com:commontk/CTK
$ mkdir CTK-Debug
$ cd CTK-Debug
$ cmake
-DQT_QMAKE_EXECUTABLE:FILEPATH=/home/jchris/Support/QtSDK-1.2.1/Desktop/Qt/4.8.1/gcc/bin/qmake
-DCTK_ENABLE_Python_Wrapping:BOOL=ON -DCTK_ENABLE_DICOM:BOOL=ON
-DCTK_BUILD_EXAMPLES:BOOL=ON ../CTK
[...]
-- Enabling [CTK_LIB_DICOM/Core] because of [ CTK_ENABLE_DICOM:1 OR (
CTK_ENABLE_DICOMApplicationHosting:0 AND CTK_BUILD_EXAMPLES:1 )] evaluates
to True
-- Enabling [CTK_APP_ctkDICOM] because of [ CTK_ENABLE_DICOM:1 AND
CTK_BUILD_EXAMPLES:1] evaluates to True
-- Enabling [CTK_APP_ctkDICOM2] because of [ CTK_ENABLE_DICOM:1 AND
CTK_BUILD_EXAMPLES:1] evaluates to True
-- Enabling [CTK_APP_ctkDICOMIndexer] because of [ CTK_ENABLE_DICOM:1 AND
CTK_BUILD_EXAMPLES:1] evaluates to True
-- Enabling [CTK_APP_ctkDICOMDemoSCU] because of [ CTK_ENABLE_DICOM:1 AND
CTK_BUILD_EXAMPLES:1] evaluates to True
-- Enabling [CTK_APP_ctkDICOMQuery] because of [ CTK_ENABLE_DICOM:1 AND
CTK_BUILD_EXAMPLES:1] evaluates to True
-- Enabling [CTK_APP_ctkDICOMRetrieve] because of [ CTK_ENABLE_DICOM:1 AND
CTK_BUILD_EXAMPLES:1] evaluates to True
-- Enabling [CTK_APP_ctkDICOMQueryRetrieve] because of [ CTK_ENABLE_DICOM:1
AND CTK_BUILD_EXAMPLES:1] evaluates to True
-- Enabling [CTK_APP_ctkCommandLineModuleExplorer] because of [
CTK_BUILD_EXAMPLES:1] evaluates to True
-- Enabling [CTK_APP_ctkDICOMObjectViewer] because of [ CTK_ENABLE_DICOM:1
AND CTK_BUILD_EXAMPLES:1] evaluates to True
-- Enabling [CTK_APP_ctkSimplePythonShell] because of [
CTK_ENABLE_Python_Wrapping:1 AND CTK_BUILD_EXAMPLES:1] evaluates to True
-- Generated: /home/jchris/Projects/CTK-Debug/DGraphInput-alldep.txt
-- Generated: /home/jchris/Projects/CTK-Debug/DGraphInput-alldep-withext.txt
-- Enabling option [CTK_LIB_DICOM/Widgets] required by [ctkDICOM]
-- Enabling option [CTK_LIB_Widgets] required by [ctkDICOM]
-- Enabling option [CTK_LIB_CommandLineModules/Frontend/QtGui] required by
[ctkCommandLineModuleExplorer]
-- Enabling option [CTK_LIB_CommandLineModules/Frontend/QtWebKit] required
by [ctkCommandLineModuleExplorer]
-- Enabling option [CTK_LIB_CommandLineModules/Backend/LocalProcess]
required by [ctkCommandLineModuleExplorer]
-- Enabling option [CTK_LIB_CommandLineModules/Backend/FunctionPointer]
required by [ctkCommandLineModuleExplorer]
-- Enabling option [CTK_LIB_CommandLineModules/Core] required by
[ctkCommandLineModuleExplorer]
-- Enabling option [CTK_LIB_Scripting/Python/Widgets] required by
[ctkSimplePythonShell]
-- Enabling option [CTK_LIB_Scripting/Python/Core] required by
[ctkSimplePythonShell]
-- Found PythonInterp: /usr/bin/python (found version "2.7.4")
-- Found PythonLibs: /usr/lib/x86_64-linux-gnu/libpython2.7.so (found
version "2.7.4")
-- Generated: /home/jchris/Projects/CTK-Debug/DGraphInput.txt
-- Generated: /home/jchris/Projects/CTK-Debug/Project.xml
-- Found Git: /usr/bin/git (found version "1.8.1.2")
-- Configuring done
-- Generating done
-- Build files have been written to: /home/jchris/Projects/CTK-Debug

$ make -j6
[...]
[ 90%] Performing configure step for 'CTK-Configure'
[...]
-- Found PythonInterp: /usr/bin/python (found version "2.7.4")
-- Found PythonLibs: /usr/lib/x86_64-linux-gnu/libpython2.7.so (found
version "2.7.4")
-- Generated: /home/jchris/Projects/CTK-Debug/CTK-build/DGraphInput.txt
-- Generated: /home/jchris/Projects/CTK-Debug/CTK-build/Project.xml
-- Trying to find DCMTK expecting DCMTKConfig.cmake
-- Trying to find DCMTK expecting DCMTKConfig.cmake - failed
-- Trying to find DCMTK relying on FindDCMTK.cmake
-- Looking for include file pthread.h
-- Looking fothe r include file pthread.h - found
-- Looking for pthread_create
-- Looking for pthread_create - not found
-- Looking for pthread_create in pthreads
-- Looking for pthread_create in pthreads - not found
-- Looking for pthread_create in pthread
-- Looking for pthread_create in pthread - found
-- Found Threads: TRUE
-- Found DCMTK:
/home/jchris/Projects/CTK-Debug/CMakeExternals/Install/include/dcmtk/config

-- Trying to find DCMTK relying on FindDCMTK.cmake - ok
-- CTKCore: BFD support disabled
-- Configuring done
-- Generating done
[...]
-- Build files have been written to:
/home/jchris/Projects/CTK-Debug/CTK-build

[...]
[100%] Built target CTKWidgetsCppTests
[100%] Built target CTK-build

$ cd CTK-build
$ $ cat CMakeCache.txt | ack DCMTK_DIR\:PATH
DCMTK_DIR:PATH=/home/jchris/Projects/CTK-Debug/CMakeExternals/Install

Let's note that DCMTK couldn't be found using DCMTKConfig.cmake, this is
explained by the fact the official DCMTK didn't integrate yet our latest
and greatest contribution [1]

Hth
Jc

[1]
https://github.com/commontk/DCMTK/commit/f461865d1759854db56e4c840991c81c77e45bb9

On Wed, Oct 2, 2013 at 10:18 AM, Csaba Pinter <csaba.pinter at queensu.ca>wrote:

>  Hi all,****
>
> ** **
>
> I'm trying to build CTK separately, but I have problems with linking DCMTK.
> ****
>
> ** **
>
> The way I build CTK:****
>
> **-          **Turn on CTK_BUILD_ALL****
>
> **-          **Turn on CTK_ENABLE_DICOM (I need this as I want to merge
> and test my changes in the CTK/Core/DICOM project)****
>
> **-          **Set the qmake executable****
>
> **-          **Configure****
>
> **-          **CMake complains about python paths, I set those manually***
> *
>
> **-          **Configure, Generate****
>
> **-          **Build superbuild****
>
> ** **
>
> Then DCMTK is downloaded and built by the superbuild, but later on, CTK
> projects find a completely different DCMTK directory (in my Slicer nightly
> build directory). I tried to manually add the DCMTK directory to CMake, but
> this variable does not exist in the superbuild (it is also not passed
> down), and setting it to the inner CTK project doesn't work.****
>
> ** **
>
> Basically no matter what I do, the DCMTK path is set to whatever
> find_project finds. This is what I found in CTKConfig.cmake:****
>
> # Update CMake module path so that calling "find_package(DCMTK)" works as
> expected ****
>
> # after calling "find_package(CTK)"****
>
> # Ideally projects like DCMTK or PythonQt should provide both "Config" and
> "Use" files.****
>
> set(CMAKE_MODULE_PATH****
>
>   ${CTK_CMAKE_UTILITIES_DIR}****
>
>   ${CMAKE_MODULE_PATH}****
>
>   )****
>
> ** **
>
> Now the problem with this is that ${CMAKE_MODULE_PATH} is empty, so there
> is no chance DCMTK is found correctly.****
>
> ** **
>
> Can someone please help with this?****
>
> ** **
>
> Thanks a lot,****
>
> csaba****
>
> ** **
>
> ________________________________****
>
> Csaba Pinter****
>
> Medical Software Systems Engineer****
>
> Laboratory for Percutanous Surgery****
>
> School of Computing****
>
> Queen’s University****
>
> Kingston, ON, Canada****
>
> Email: csaba.pinter at queensu.ca****
>
> Web: http://perk.cs.queensu.ca****
>
> _______________________________________________
> Ctk-developers mailing list
> Ctk-developers at commontk.org
> http://public.kitware.com/cgi-bin/mailman/listinfo/ctk-developers
>
>

-- 
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