[CMake] MSVC and different link_directories for release and debug

[John Drescher]

On Wed, Mar 24, 2010 at 2:10 PM, John Drescher <drescherjm at gmail.com> wrote:
> On Wed, Mar 24, 2010 at 1:42 PM, Michael Schildt
> <michael.schildt at ifn-magdeburg.de> wrote:
>> Hello,
>>
>> I use GDCM libaries in one project. Unfurtunally, i couldn't find a findGDCM
>> module and i'm not experienced enough to write one. I have seen that GDCM is
>> used in ITK, so there must be a module like this. GDCM is using cmake too,
>> so inclusion should be easy. But i have problems to link the correkt library
>> version depending on the configuration type.
>>
>> IF(WIN32)
>>  INCLUDE_DIRECTORIES(C:/Programme/GDCM\ 2.0/include/gdcm-2.0)
>>  IF(CMAKE_BUILD_TYPE MATCHES "Debug")
>>   LINK_DIRECTORIES("C:/Program Files/GDCM/bin/Debug")
>>  ELSE(CMAKE_BUILD_TYPE MATCHES "Debug")
>>   LINK_DIRECTORIES("C:/Program Files/GDCM/bin/Release")
>>  ENDIF(CMAKE_BUILD_TYPE MATCHES "Debug")
>>  SET(GDCM_LIBRARIES gdcmcharls.lib gdcmCommon.lib gdcmDICT.lib gdcmDSED.lib
>> gdcmexpat.lib gdcmgetopt.lib gdcmIOD.lib gdcmjpeg8.lib gdcmjpeg12.lib
>> gdcmjpeg16.lib gdcmMSFF.lib gdcmopenjpeg.lib gdcmzlib.lib)
>> ELSE(WIN32)
>>   # Linux
>>   INCLUDE_DIRECTORIES(/usr/include/gdcm-2.0)
>>   SET(GDCM_LIBRARIES gdcmCommon gdcmDICT gdcmDSED gdcmIOD gdcmjpeg8
>> gdcmjpeg12 gdcmjpeg16 gdcmMSFF)
>> ENDIF(WIN32)
>>
>> He always includes the Relase Directory. What is a solution for this issue?
>>
>
> Build GDCM from source and it will have the necessary finders. Do not
> INSTALL. Then the usual in your CMakeLists.txt file. Here is an
> example.
>
> CMakeLists.txt
> cmake_minimum_required(VERSION 2.6)
>
>        PROJECT(GDCMImageViewer)
>
>        FIND_PACKAGE(VTK REQUIRED)
>        INCLUDE(${VTK_USE_FILE})
>
>        FIND_PACKAGE(GDCM REQUIRED)
>        INCLUDE(${GDCM_USE_FILE})
>
>        INCLUDE_DIRECTORIES(
>         ${GDCM_SOURCE_DIR}/Utilities/VTK
>        )
>
>        IF(WIN32 AND NOT CYGWIN)
>                ADD_SUBDIRECTORY(getopt)
>                INCLUDE_DIRECTORIES(getopt)
>        ENDIF(WIN32 AND NOT CYGWIN)
>
>        ADD_EXECUTABLE(GDCMImageViewer gdcmviewer.cxx)
>        TARGET_LINK_LIBRARIES(GDCMImageViewer vtkHybrid vtkInfovis vtkWidgets
> vtkgdcm getopt)
>
>

BTW when cmake-gui complains it can not find GDCM point it to the
place where you built gdcm. Also make sure you build all
configurations of GDCM that you want in the same build tree. That is
why I said do not install. Since install will try to put the binaries
in the same folder and since they are named the same it will cause
problems.


John