Cmake is seeking for OpenCV legacy in libsitplus

[Andreas Tille <andreas@an3as.eu>]

Hi,

to upgrade package sitplus I need to package libsitplus[1].  I made some
progress to adjust Build-Depends and some cmake patches but I'm now
running into:

CMake Error at /usr/share/cmake-3.13/Modules/FindPackageHandleStandardArgs.cmake:137 (message):
  Could NOT find OpenCV (missing: legacy) (found version "3.2.0")
Call Stack (most recent call first):
  /usr/share/cmake-3.13/Modules/FindPackageHandleStandardArgs.cmake:378 (_FPHSA_FAILURE_MESSAGE)
  /usr/share/OpenCV/OpenCVConfig.cmake:260 (find_package_handle_standard_args)
  src/mod_vision/CMakeLists.txt:4 (FIND_PACKAGE)


which is triggert by the line

  FIND_PACKAGE( OpenCV REQUIRED core imgproc legacy)

I have no idea what this "legacy" part of OpenCV might be and
how I can provide it.  Any ideas?

Kind regards

     Andreas.


[1] https://salsa.debian.org/med-team/libsitplus

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