There are a handful of static initializers in our binary which originate from the opencv library. All of them are attributed to the policy private static member of the templated SinglePolicy class:
opencv2/flann/any.h#L176.

These can be avoided by using the Meyer singleton pattern for the get_policy() function.

issue report: #20051

Pull Request Readiness Checklist

See details at https://github.com/opencv/opencv/wiki/How_to_contribute#making-a-good-pull-request

• I agree to contribute to the project under Apache 2 License.
• To the best of my knowledge, the proposed patch is not based on a code under GPL or other license that is incompatible with OpenCV
• The PR is proposed to proper branch
• There is reference to original bug report and related work
• There is accuracy test, performance test and test data in opencv_extra repository, if applicable
  Patch to opencv_extra has the same branch name.
• The feature is well documented and sample code can be built with the project CMake