message: Fixes using-with-cmake example for lower versions of cmake
diff: @@ -58,7 +58,8 @@ if (ENABLE_MPI)
  find_package(MPI REQUIRED)
  if(NOT TARGET mpi AND TARGET MPI::MPI_CXX)
  - add_library(mpi ALIAS MPI::MPI_CXX)
  + add_library(mpi INTERFACE)
  + target_link_libraries(mpi INTERFACE MPI::MPI_CXX)
  endif()
  endif()
  