cmake - Opencv_world451.dll missing in openCV 4.5.1 x86 build

Question

I'm upgrading my Visual Studio v15 C++ project from openCV v3.4.3 to v4.5.1 in x86 configuration. I built it in CMake and then ran BUILD and INSTALL in OpenCV.sln in Visual Studio. But I cannot find the opencv_world451.dll anywhere. It's supposed to be in ..installx86vc15in but it's just not there. There are bunch of other dll files, but not the opencv_world451.dll. Could anyone help?

Answer 1

the cmake variable BUILD_opencv_world needs to be set according to your wishes.

use cmake-gui for convenience.