In my project, I use the Boost and CUDA libraries. Previously, I used find_package(Boost) and find_package(CUDA), followed by if(CUDA_FOUND) and if(Boost_FOUND) to check if those packages were available.

I recently upgraded to CMake 3.30. According to CMP0167 introduced in CMake 3.30 and CMP0146 from CMake 3.27, it is advised not to use find_package(Boost) and find_package(CUDA) directly, as CMake now handles these requirements differently.

How can I check if these requirements are satisfied without setting the policies to OLD?

Currently, I’m considering setting the policies to OLD to suppress warning messages:

if(POLICY CMP0146)
    cmake_policy(SET CMP0146 OLD)
endif()

However, I would like to know if there is a better way to check for the presence of these packages without reverting to the old policy settings.