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

Mon, 16 Nov 2009 07:02:51 -0800

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.jack...@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 [ty...@cryptio.net]
Sent: Monday, November 16, 2009 12:50 AM
To: Cheng Zhigao
Cc: cmake@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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