Bug 1031312

Builds fine with opencv-2.4.6.1-1.fc20

-- First try at finding OpenCV...
-- Great, found OpenCV on the first try.
-- OpenCV Root directory is: /usr/lib/cmake/OpenCV
-- OpenCV: Found version 2.4.6.1 (required: 2.4.5)

The file OpenCVModules-releasewithdebinfo.cmake looks correct to me on x86_64:

OpenCVModules-releasewithdebinfo.cmake:  IMPORTED_LOCATION_RELEASEWITHDEBINFO "${_IMPORT_PREFIX}/lib64/libopencv_core.so.2.4.7"

Unless _IMPORT_PREFIX is set to something else than /usr...
I'm not as at all comfortable with cmake mess, I've only tested freir0-plugins and vlc which doesn't rely on cmake.

Problem in libdir added twice /usr/lib/lib/libopencv_core.so.2.4.7.
Maybe _IMPORT_PREFIX also have /lib?

Building on x86_64 f20 gives similar but different error,

CMake Error at /lib64/cmake/OpenCV/OpenCVModules.cmake:108 (message):
  The imported target "opencv_core" references the file

     "/lib64/lib64/libopencv_core.so.2.4.7"

  but this file does not exist.  Possible reasons include:

  * The file was deleted, renamed, or moved to another location.

  * An install or uninstall procedure did not complete successfully.

  * The installation package was faulty and contained

     "/lib64/cmake/OpenCV/OpenCVModules.cmake"


I suspect this has something to do with UsrMove and faulty relative path calculations.

orion, any insight/clues to the cmake bogosity going on here?

After downgrading to opencv-2.4.6.1-1.fc20.x86_64 , I see the build still fail.

Checking koji, the last successful digikam build used
cmake-2.8.11.2-3.fc20 (and opencv-2.4.6.1-1.fc20)

and now is failing with:
cmake-2.8.12.1-1.fc20 (and opencv-2.4.6.1-1.fc20 or opencv-2.4.7-1.fc20)

Seems something went bad between cmake-2.8.11.2-3 and cmake-2.8.12.1-1, reassigning to cmake (for now).

Last successful build digikam-3.5.0-1.fc21 used cmake-2.8.12-1.fc21 and opencv-2.4.6.1-2.fc21
http://koji.fedoraproject.org/koji/buildinfo?buildID=470314

Changes after cmake-2.8.12-1.fc21

* Wed Nov 06 2013 Orion Poplawski <orion.com> - 2.8.12.1-1 
- Update to 2.8.12.1 

* Wed Oct 23 2013 Orion Poplawski <orion.com> - 2.8.12-3 
- Remove UseQt4 automatic dependency adding 

* Thu Oct 10 2013 Orion Poplawski <orion.com> - 2.8.12-2 
- Autoload cmake-mode in emacs (bug #1017779)

I think the opencv cmake path munging is a source of possible problems:

#Cmake mess
mkdir -p  $RPM_BUILD_ROOT%{_libdir}/cmake/OpenCV
mv $RPM_BUILD_ROOT%{_datadir}/OpenCV/*.cmake \
  $RPM_BUILD_ROOT%{_libdir}/cmake/OpenCV


moving these .cmake files (back) to /usr/share/OpenCV/ or %_libdir/OpenCV/  and things work again.

(In reply to Rex Dieter from comment #9)
> moving these .cmake files (back) to /usr/share/OpenCV/ or %_libdir/OpenCV/ 
> and things work again.

We shouldn't use /usr/share since that would make opencv-devel multilib unclean, i.e. it wouldn't be possible to install 32bit and 64bit arch on one machine. So, in case %_libdir/OpenCV/ works, we should take this one.

Yeah, don't ever move files in %install with cmake builds - you'll break things.  Get cmake to install them in the desired location.

Looks like these end up on OPENCV_CONFIG_INSTALL_PATH , which gets set with this ... interesting... logic:

  math(EXPR SIZEOF_VOID_P_BITS "8 * ${CMAKE_SIZEOF_VOID_P}")
  if(LIB_SUFFIX AND NOT SIZEOF_VOID_P_BITS EQUAL LIB_SUFFIX)
    set(OPENCV_CONFIG_INSTALL_PATH lib${LIB_SUFFIX}/cmake/opencv)
  else()
    set(OPENCV_CONFIG_INSTALL_PATH share/OpenCV)
  endif()

(where we know the former kinda doesn't work)

http://pkgs.fedoraproject.org/cgit/opencv.git/commit/?id=85dcc3a0ce55e5781fc670381996af2b43b38e8d

%changelog
* Mon Nov 18 2013 Rex Dieter <rdieter> 2.4.7-2
- OpenCV cmake configuration broken (#1031312)

let's give this a try,
http://koji.fedoraproject.org/koji/taskinfo?taskID=6195036

(In reply to Rex Dieter from comment #13)
> http://koji.fedoraproject.org/koji/taskinfo?taskID=6195036

It builds now.

-- First try at finding OpenCV...
-- Great, found OpenCV on the first try.
-- OpenCV Root directory is: /usr/lib/OpenCV
-- OpenCV: Found version 2.4.7 (required: 2.4.5)

New opencv build also needed for F20 update
https://admin.fedoraproject.org/updates/FEDORA-2013-21444

frei0r-plugins-1.4-1.fc20, opencv-2.4.7-2.fc20 has been submitted as an update for Fedora 20.
https://admin.fedoraproject.org/updates/FEDORA-2013-21444/opencv-2.4.7-2.fc20,frei0r-plugins-1.4-1.fc20

Package frei0r-plugins-1.4-1.fc20, opencv-2.4.7-2.fc20:
* should fix your issue,
* was pushed to the Fedora 20 testing repository,
* should be available at your local mirror within two days.
Update it with:
# su -c 'yum update --enablerepo=updates-testing frei0r-plugins-1.4-1.fc20 opencv-2.4.7-2.fc20'
as soon as you are able to.
Please go to the following url:
https://admin.fedoraproject.org/updates/FEDORA-2013-21444/opencv-2.4.7-2.fc20,frei0r-plugins-1.4-1.fc20
then log in and leave karma (feedback).

Can someone re add +1 to the update? We don't have too much time before f20 freeze.

Thanks.

frei0r-plugins-1.4-1.fc20, opencv-2.4.7-2.fc20 has been pushed to the Fedora 20 stable repository.  If problems still persist, please make note of it in this bug report.