Where is libopencv_world.so ?

[zifken]

Hello thank you for sharing your work.
I'm followed successfully this tutorial to build opencv+opencv_contrib 4.2.0 on ubuntu however I can't find libopencv_world.so libopencv_world.so4.2 libopencv_world.so4.2.0 anywhere to copy and paste in opencv-4.2.0/lib/ could you explain where to find this library ?
I tried to compile the project without it and of course had this error :
/usr/bin/ld: cannot find -lopencv_world
Thank you

[zifken]

I couldn't install one of the requirements : -libjasper-dev
according to this answer I had to install it from a previous release.
I then recompiled opencv and found the libraries with whereis lib_opencv_world.so -> /usr/local/lib/libopencv_world.so
as i choose -DCMAKE_INSTALL_PREFIX=/usr/local.
I will mark this issue closed.