[CMake] Copying of 3rd party DLLs in a POST-BUILD step

[Hauke Heibel]

Hi Michael,

What I do is running a custom command which itself executes a CMake
script. Usually similar to

add_custom_command(TARGET CopyDlls
  COMMAND ${CMAKE_COMMAND}
	-DMSVC_BUILD_CONFIG_DIR=${CMAKE_CFG_INTDIR}
	-DCMAKE_RUNTIME_OUTPUT_DIRECTORY=${CMAKE_RUNTIME_OUTPUT_DIRECTORY}
	-P "<pathto>/yourCopyDlls.cmake"
  VERBATIM
)

In the "yourCopyDlls.cmake", you can GLOB your DLLs with or without
the "d" postfix depending on MSVC_BUILD_CONFIG_DIR. You can now even
copy additional files such as e.g. PDB files.

HTH,
Hauke

2012/1/9 Michael Stürmer <m.stuermer at pmdtec.com>:
> I have found some topics related to my issue on the web, but none so far
> helped me to fix it:
>
>
>
> I use Visual Studio 2010 on Windows 7 64Bit.
>
>
>
> During my build, all binaries are collected in one folder, which makes it
> easier for me to debug the project. But to be able to run the program
> actually, I have to copy several dlls (like Qt, openCV etc.) into the folder
> for the program to find them. Putting the libraries in the system path is
> not an option for me, as I switch between 32- and 64-bit on the same system.
>
>
>
> I managed to locate the folder where the dlls are (using some
> CMake-Variables) and using a custom command like
>
>
>
> ADD_CUSTOM_COMMAND( TARGET CopyDlls POST_BUILD
>
>                 COMMAND copy “${DLL_3RD}/*.dll”
>  “${CMAKE_RUNTIME_OUTPUT_DIRECTORY}/$<CONFIGURATION>”
>
>                 COMMENT “copying dlls …”
>
>                 )
>
>
>
> This copies ALL dlls from the ${DLL_3RD} folder to the binary folder, for Qt
> that would be the relase as well as the debug libraries.
>
>
>
> Now my question:
>
>
>
> I would like to only copy those dlls I need, i.e. I have to determine
> somehow if I’m in debug or release mode and select the appropriate libraries
> by adding “d” for debug versions. For openCV I need “opencv_core231.dll” in
> release and “opencv_core231d.dll” in debug mode. Does anyone have a
> solution/workaround/idea for this problem?
>
>
>
> Best regards,
>
> Michael
>
>
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