FindMPI: Updated to use INTERFACE_LINK_OPTIONS

Author: Robert Maynard

Modules/FindMPI.cmake

@@ -1142,16 +1142,15 @@ macro(_MPI_create_imported_target LANG)
 
   set_property(TARGET MPI::MPI_${LANG} PROPERTY INTERFACE_COMPILE_DEFINITIONS "${MPI_${LANG}_COMPILE_DEFINITIONS}")
 
-  set_property(TARGET MPI::MPI_${LANG} PROPERTY INTERFACE_LINK_LIBRARIES "")
   if(MPI_${LANG}_LINK_FLAGS)
     separate_arguments(_MPI_${LANG}_LINK_FLAGS NATIVE_COMMAND "${MPI_${LANG}_LINK_FLAGS}")
-    set_property(TARGET MPI::MPI_${LANG} APPEND PROPERTY INTERFACE_LINK_LIBRARIES "${_MPI_${LANG}_LINK_FLAGS}")
+    set_property(TARGET MPI::MPI_${LANG} PROPERTY INTERFACE_LINK_OPTIONS "${_MPI_${LANG}_LINK_FLAGS}")
     unset(_MPI_${LANG}_LINK_FLAGS)
   endif()
   # If the compiler links MPI implicitly, no libraries will be found as they're contained within
   # CMAKE_<LANG>_IMPLICIT_LINK_LIBRARIES already.
   if(MPI_${LANG}_LIBRARIES)
-    set_property(TARGET MPI::MPI_${LANG} APPEND PROPERTY INTERFACE_LINK_LIBRARIES "${MPI_${LANG}_LIBRARIES}")
+    set_property(TARGET MPI::MPI_${LANG} PROPERTY INTERFACE_LINK_LIBRARIES "${MPI_${LANG}_LIBRARIES}")
   endif()
   # Given the new design of FindMPI, INCLUDE_DIRS will always be located, even under implicit linking.
   set_property(TARGET MPI::MPI_${LANG} PROPERTY INTERFACE_INCLUDE_DIRECTORIES "${MPI_${LANG}_INCLUDE_DIRS}")