[Digikam-devel] [Bug 264231] New: cmakelist.txt opencv-check broken

[S. Burmeister]

https://bugs.kde.org/show_bug.cgi?id=264231

           Summary: cmakelist.txt opencv-check broken
           Product: digikam
           Version: 2.0.0
          Platform: openSUSE RPMs
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: general
        AssignedTo: digikam-devel at kde.org
        ReportedBy: sven.burmeister at gmx.net


Version:           2.0.0 (using KDE 4.5.95) 
OS:                Linux

Since a few days the opencv-check does not work anymore althought it did
before. 

-- Checking GNUCXX version 3/4 to determine  OpenCV /opt/net/ path
CMake Error at extra/libkface/cmake/modules_opencv/FindOpenCV.cmake:237 
(MESSAGE):
  OpenCV required but some headers or libs not found.  Please specify it's
  location with OpenCV_ROOT_DIR env.  variable.
Call Stack (most recent call first):
  extra/libkface/CMakeLists.txt:54 (FIND_PACKAGE)

The reason is that on some distros there were issues finding opncv.

"A short notice about OpenCV: Apparently, there are two versions of
FindOpenCV.cmake in the wild. If the one shipped with this software
does not find your OpenCV installation, specify
-DKFACE_EXTERNAL_FINDOPENCV:BOOL=TRUE as an argument to cmake to use
the FindOpenCV.cmake which is installed on your system."

The question is why the finding had to be broken for those distros that got it
right and where it did work before.

The result is that using scripts like the cmakekde one from techbase (which
compiles more than one module at a time) is no longer possible with digikam2
because it now requires some extra options which is completely unnecessary for
most distros.

Expected behaviour: force only those distros to add some extra where it did not
work before.

Reproducible: Always

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