CMake Warning:
  Ignoring extra path from command line:

   "/var/pisi/opencv-4.12.0-20/work/opencv-4.12.0/build/DESTDIR=/var/pisi/opencv-4.12.0-20/install"


CMake Deprecation Warning at CMakeLists.txt:25 (cmake_minimum_required):
  Compatibility with CMake < 3.10 will be removed from a future version of
  CMake.

  Update the VERSION argument  value.  Or, use the ... syntax
  to tell CMake that the project requires at least  but has been updated
  to work with policies introduced by  or earlier.


CMake Deprecation Warning at samples/sycl/CMakeLists.txt:24 (cmake_policy):
  Compatibility with CMake < 3.10 will be removed from a future version of
  CMake.

  Update the VERSION argument  value.  Or, use the ... syntax
  to tell CMake that the project requires at least  but has been updated
  to work with policies introduced by  or earlier.


CMake Warning (dev) at samples/CMakeLists.txt:13 (install):
  Policy CMP0177 is not set: install() DESTINATION paths are normalized.  Run
  "cmake --help-policy CMP0177" for policy details.  Use the cmake_policy
  command to set the policy and suppress this warning.
Call Stack (most recent call first):
  samples/CMakeLists.txt:54 (ocv_install_example_src)
This warning is for project developers.  Use -Wno-dev to suppress it.