@bblanchon, thanks, that's a nice feature! @alalek, could you review it, please? Is it compatible with all the CMake versions that we support?

@vpisarev MAP_IMPORTED_CONFIG_ is present in CMake 2.6's documentation, but I cannot find it in 2.4.
However, since it's just a property that we set, it'll be ignored by earlier versions.

Thank you! Looks good to me 👍

It looks like a MSVC condition is necessary after all. On my machine with Ubuntu 16.04 and OpenCV 3.3.1 the changes of @bblanchon cause compile errors , when my build target is set to DebWithRelInfo.

make[2]: *** No rule to make target 'opencv_calib3d-NOTFOUND'

If I build my project as Debug or Release it compiles. If I remove the changes from the pull request, it will also compile for RelWithDebInfo.

I don't know if it is relevant, but It seems like there are no Imported Configurations available. I have added this to OpenCVConfig.cmake:

get_target_property(foo ${__cvcomponent} IMPORTED_CONFIGURATIONS)
MESSAGE("IMPORTED_CONFIGURATIONS ${foo}")

Then CMake will output: "IMPORTED_CONFIGURATIONS NONE"

But shouldn't the MAP_IMPORTED_CONFIG_ property be ignored in this case?

@TobiasLangnerFUB The latest discussion is here: #10105

I have seen that issue, but it doesn't fit my scenario. I haven't build OpenCV on my own, but use the opencv3 package for ROS Kinetic. The website http://wiki.ros.org/opencv3 lists the changes they have made to the CMake configuration. It doesn't look like it was built as RelWithDebInfo.