How to point cmake at specific directory for library?

Question

I have a CMake project where I am using a library and now I want to test my code with a different version of that library. I can set INCLUDE_DIRECTORIES (and possibly later

Answer 1

Using config in find_package will restrict search path to OpenCV_DIR. This will use the cmake config that opencv generates at build time to setup paths to include and libs

set(OpenCV_DIR "" CACHE PATH '' ${SHOULD_FORCE_CACHE})
find_package(OpenCV REQUIRED CONFIG)