Merge branch 'issue/find-partmetis-mpi-flags' into 'master'

Add MPI flags if ParMETIS is used

See merge request !1500

cmake/modules/AddParMETISFlags.cmake

@@ -34,6 +34,8 @@ endif()
 # add function to link against the ParMETIS library
 function(add_dune_parmetis_flags _targets)
   if(ParMETIS_FOUND)
+    add_dune_metis_flags(${_targets})
+    add_dune_mpi_flags(${_targets})
     foreach(_target ${_targets})
       target_link_libraries(${_target} PUBLIC ParMETIS::ParMETIS)
       target_compile_definitions(${_target} PUBLIC ${PARMETIS_COMPILE_DEFINITIONS})

cmake/modules/FindParMETIS.cmake

@@ -118,7 +118,6 @@ if(PARMETIS_FOUND AND NOT TARGET ParMETIS::ParMETIS)
     IMPORTED_LOCATION ${PARMETIS_LIBRARY}
     INTERFACE_INCLUDE_DIRECTORIES ${PARMETIS_INCLUDE_DIR}
     INTERFACE_LINK_LIBRARIES "METIS::METIS;MPI::MPI_C"
-    INTERFACE_COMPILE_DEFINITIONS "MPICH_SKIP_MPICXX;OMPI_SKIP_MPICXX"
   )
 
   # link against PTScotch if needed