Package: libopencv-dev Version: 4.2.0+dfsg-6+b3 Severity: wishlist The package libopencv-dev presently cannot be installed for foreign architectures. Doing so would be useful to enable cross building against opencv.
libopencv-dev depends on libopencv4.2-java. This package is presently Multi-Arch: foreign (though #969957 asks to remove that). It depends on libopencv4.2-jni, which depends on the opencv libraries. Due to the Multi-Arch: foreign, the opencv stack needs to be installed natively. libopencv-dev also depends on the foreign opencv libraries. This happens to conflict on a number of lower layer libraries, which are not presently coinstallable. Examples include libfabric1, libogdi4.1 or libgdal27. Once removing the Multi-Arch: foreign annotation, the dependency on libopencv4.2-java will simply become unsatisfiable for foreign installations. Would it be possible to enable installing opencv without java bindings? It is also possible to install it without python bindings at present. Once the libopencv4.2-java dependency is dropped, libopencv-dev can be installed without issues. How about demoting libopencv4.2-java to Recommends? In case that is not possible, it would be good to hava a way to install /usr/lib/<triplet>/cmake/opencv4/OpenCVConfig.cmake without having to install the java bindings. That file presently resides in libopencv-dev. So the other option would be splitting libopencv-dev into another package that doesn't depend on java and ships this file. Thank you for considering Helmut
