[CMake] Per configuration ADD_CUSTOM_COMMAND

[Ludovic Hoyet]

Hi,

I have different projects that generate a .lib and a .dll file, and I would
like to copy these 2 files in a given directory as a post-build event. My
main problem is that my debug libraries are post-fixed with _d, which
require that I use the following code:

SET(MY_PROJECT project)
ADD_LIBRARY(${MY_PROJECT } SHARED ${HDRS} ${SOURCES} ... )
[...]
ADD_CUSTOM_COMMAND(TARGET ${MY_PROJECT } POST_BUILD COMMAND
${CMAKE_COMMAND} -E copy $<TARGET_FILE:${MY_PROJECT }> ${EXTERNAL_DIR}
VERBATIM)
ADD_CUSTOM_COMMAND(TARGET ${MY_PROJECT } POST_BUILD COMMAND
${CMAKE_COMMAND} -E copy ${LIBRARY_OUTPUT_PATH}/debug/${MY_PROJECT }_d.lib
${EXTERNAL_DIR}/${MY_PROJECT }_d.lib VERBATIM)
ADD_CUSTOM_COMMAND(TARGET ${MY_PROJECT } POST_BUILD COMMAND
${CMAKE_COMMAND} -E copy ${LIBRARY_OUTPUT_PATH}/release/${MY_PROJECT }.lib
${EXTERNAL_DIR}/${MY_PROJECT }.lib VERBATIM)

The main problem is that the tool crash when I compile it the first time.
For instance if I start to compile in Release the _d.lib file does not
exist and it does not even process to copying the release .lib. Ok, it
works if I compile it in the right order, but I would prefer to have a
clean code for this.

I have been looking at using
INSTALL(TARGETS ${MY_PROJECT} DESTINATION ${EXTERNAL_DIR} COMPONENT
Libraries)
but it creates a separate install vcproj that runs after all my projects,
and I need my libraries copied right after the compilation as other
projects depend on these output. So this is not a solution for me.

So I tryied to have a look at per configuration ADD_CUSTOM_COMMAND. I
 found different discussion about this problem, but I don't manage to make
it work:
http://public.kitware.com/Bug/view.php?id=9974
http://public.kitware.com/Bug/view.php?id=11209

The first one provide a patch, but I don't manage to get it working with
cmake. Is there a special way to include these "patches" to our
configurations?

Thanks

Ludovic
_______________________________________

Ludovic Hoyet
Research Fellow,
Graphics Vision and Visualisation group,
Trinity College Dublin
http://www.scss.tcd.ie/~hoyetl/
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