Could NOT find OpenJPEG

[silent-bury]

cmake
-G Ninja
-DCMAKE_INSTALL_PREFIX=/usr/local/opencv-4.6.0
-DCMAKE_BUILD_TYPE=Release
-DOPENCV_GENERATE_PKGCONFIG=ON
-DBUILD_opencv_world=ON
-DBUILD_JAVA=OFF
-DBUILD_opencv_python3=OFF
-DBUILD_opencv_python_bindings_generator=OFF
-DBUILD_opencv_python_tests=OFF
-DBUILD_IPP_IW=ON
-DBUILD_ITT=ON
-DBUILD_OPENEXR=ON
-DBUILD_OPENJPEG=ON
-DBUILD_PNG=OFF
-DBUILD_PROTOBUF=ON
-DBUILD_SHARED_LIBS=ON
-DBUILD_TESTS=ON
-DBUILD_TIFF=ON
-DBUILD_WEBP=ON
-DBUILD_WITH_DYNAMIC_IPP=OFF
-DBUILD_ZLIB=OFF
-DBUILD_opencv_apps=ON
-DBUILD_opencv_calib3d=ON
-DBUILD_opencv_core=ON
-DBUILD_opencv_dnn=ON
-Dopencv_features2d=ON
-DBUILD_opencv_flann=ON
-DBUILD_opencv_gapi=ON
-DBUILD_opencv_highgui=ON
-DBUILD_opencv_imgcodecs=ON
-DBUILD_opencv_imgproc=ON
-DBUILD_opencv_ml=ON
-DBUILD_opencv_objc_bindings_generator=ON
-DBUILD_opencv_objdetect=ON
-DBUILD_opencv_photo=ON
-DBUILD_opencv_python_bindings_generator=ON
-DBUILD_opencv_python_tests=ON
-DBUILD_opencv_stitching=ON
-DBUILD_opencv_ts=ON
-DBUILD_opencv_videoio=ON
-DCPU_BASELINE=AVX
-DCPU_DISPATCH=SSE4_1,SSE4_2,FP16,AVX
-DEigen3_DIR=/usr/local/eigen-3.4.0
-DINSTALL_PYTHON_EXAMPLES=ON
-DOPENCV_DNN_CUDA=OFF
-DOPENCV_DNN_OPENCL=ON
-DOPENCV_DNN_OPENVINO=ON
-DOPENCV_ENABLE_ALLOCATOR_STATS=ON
-DOPENCV_ENABLE_ATOMIC_LONG_LONG=ON
-DOPENCV_GAPI_GSTREAMER=OFF
-DOPENCV_IPP_GAUSSIAN_BLUR=ON
-DWITH_1394=OFF
-DWITH_ADE=ON
-DWITH_EIGEN=ON
-DWITH_FFMPEG=ON
-DWITH_FREETYPE=ON
-DWITH_GTK=ON
-DWITH_IMGCODEC_PXM=ON
-DWITH_IMGCODEC_SUNRASTER=ON
-DWITH_IPP=ON
-DWITH_ITT=ON
-DWITH_JASPER=ON
-DWITH_JPEG=ON
-DWITH_LAPACK=ON
-DWITH_MFX=OFF
-DWITH_OAK=ON
-DWITH_ONNX=ON
-DWITH_OPENCL=ON
-DWITH_OPENCLAMDBLAS=ON
-DWITH_OPENCLAMDFFT=ON
-DWITH_OPENCL_SVM=ON
-DWITH_OPENJPEG=ON
-DWITH_PNG=ON
-DWITH_PROTOBUF=ON
-DWITH_PTHREADS_PF=ON
-DWITH_QT=OFF
-DWITH_QUIRC=ON
-DWITH_TIFF=ON
-DWITH_V4L=ON
-DWITH_VA=ON
-DWITH_VA_INTEL=ON
-DWITH_WEBP=ON
-DOpenBLAS_LIB=/usr/local/openBlas/lib/libopenblas.so
-DOpenBLAS_INCLUDE_DIR=/usr/local/openBlas/include
-DOpenJPEG_DIR=/usr/local/opencv-4.6.0-openjp2-2.4.0/lib/openjpeg-2.4
-DOPENCV_EXTRA_MODULES_PATH=/home/tjc/source_build/opencv_contrib-4.6.0/modules
..

What is the reason for this

[mmomtchev]

The CMake integration of openjpeg in Ubuntu is borked, I am currently trying to find why and is it the fault of the package maintainers or the library authors:

https://bugs.launchpad.net/ubuntu/+source/openjpeg2/+bug/2060106

The CMake modules installed are not complete.