[CMake] using cmake to link window lib and dll files

[Michael Jackson]

You will need to create an "install" command that copies the library  
into the runtime directory. There are lots of examples in the email  
archives. Here is what I do for the Qt libraries:

if (AIM_BUILD_QT_APPS AND NOT Q_WS_MAC)
     if (DEFINED QT_QMAKE_EXECUTABLE)
         SET (QTLIBLIST QtCore QtGui)

         IF (MSVC)
             set(TYPE "d")
             FOREACH(qtlib ${QTLIBLIST})
               IF (WIN32)
                 GET_FILENAME_COMPONENT(QT_DLL_PATH_tmp $ 
{QT_QMAKE_EXECUTABLE} PATH)
                 file(MAKE_DIRECTORY ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}/ 
Debug)
                 file(MAKE_DIRECTORY ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}/ 
Release)
                 file(MAKE_DIRECTORY ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}/ 
MinSizeRel)
                 file(MAKE_DIRECTORY ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}/ 
RelWithDebInfo)
                 INSTALL(FILES ${QT_DLL_PATH_tmp}/${qtlib}${type}d4.dll
                     DESTINATION ./
                     CONFIGURATIONS Debug
                     COMPONENT Applications)
                 INSTALL(FILES ${QT_DLL_PATH_tmp}/${qtlib}4.dll
                     DESTINATION ./
                     CONFIGURATIONS Release
                     COMPONENT Applications)
                 add_custom_target(${qtlib}-Debug-Copy ALL
                             COMMAND ${CMAKE_COMMAND} -E  
copy_if_different ${QT_DLL_PATH_tmp}/${qtlib}${TYPE}4.dll
                             ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}/Debug/
                             COMMENT "Copying ${qtlib}${TYPE}4.dll to $ 
{CMAKE_RUNTIME_OUTPUT_DIRECTORY}/Debug/")
                 add_custom_target(${qtlib}-Release-Copy ALL
                             COMMAND ${CMAKE_COMMAND} -E  
copy_if_different ${QT_DLL_PATH_tmp}/${qtlib}4.dll
                             ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}/Release/
                             COMMENT "Copying ${qtlib}4.dll to $ 
{CMAKE_RUNTIME_OUTPUT_DIRECTORY}/Release/")
               ENDIF (WIN32)
             ENDFOREACH(qtlib)

         endif()
     endif(DEFINED QT_QMAKE_EXECUTABLE)
endif()

_________________________________________________________
Mike Jackson                  mike.jackson at bluequartz.net
BlueQuartz Software                    www.bluequartz.net
Principal Software Engineer                  Dayton, Ohio

On Nov 15, 2009, at 10:04 PM, Cheng Zhigao wrote:

> Thanks for your reply. I am pretty sure without giving the full  
> path, The link_directories and target_link_library does not work  
> under my case. And for the dll thing, is there a way i can use cmake  
> to make it available for the application at runtime?
>
> Regards,
> zhigao
> ________________________________________
> From: Tyler Roscoe [tyler at cryptio.net]
> Sent: Monday, November 16, 2009 12:50 AM
> To: Cheng Zhigao
> Cc: cmake at cmake.org
> Subject: Re: [CMake] using cmake to link window lib and dll files
>
> On Sun, Nov 15, 2009 at 09:37:31PM +0800, Cheng Zhigao wrote:
>> The project name is TEST, i put the external library in a folder  
>> named
>> ${TEST_SOURCE_DIR}/epanet/ which contains the epanet2.h epanet2.lib
>> and epanet2.dll files. I use the Include_directories and
>> link_directories to point to the /epanet/ folder.     And i use
>> TARGET_LINK_LIBRARIES to link the library. However, i still have to
>> put the full path like ${TEST_SOURCE_DIR}/epanet2/epanet2.lib to link
>> to the library including file extension. And I do not know how to  
>> link
>
> link_directories() + target_link_libraries() should work. Maybe the
> problem has to do with your confusion on this issue:
>
>> to the epanet2.dll file. I have to manually copy the dll file in  
>> order
>> to make the code to work otherwise it will complain cannot find the
>> .dll file.  How can i do that in cmake so that both the .lib file and
>> .dll file will be linked without manual actions? Thanks.
>
> You don't link against a dll. You link against the import library  
> (.lib)
> and then the DLL must be available to your application at runtime.
> There's a page in the CMake wiki with more details about building
> libraries on Windows.
>
> tyler
>
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