f08: make procedure(MPI_User_function) type available from mpi_f08

Refs. #3409

Thanks Nathan T. Weeks for the report

Signed-off-by: Gilles Gouaillardet <[email protected]>

(cherry picked from commit 96b00b0)

Author: ggouaillardet

ompi/mpi/fortran/use-mpi-f08/mpi-f08.F90

@@ -13,7 +13,7 @@
 ! Copyright (c) 2006-2014 Cisco Systems, Inc.  All rights reserved.
 ! Copyright (c) 2009-2012 Los Alamos National Security, LLC.
 !                         All rights reserved.
-! Copyright (c) 2016      Research Organization for Information Science
+! Copyright (c) 2016-2017 Research Organization for Information Science
 !                         and Technology (RIST). All rights reserved.
 ! $COPYRIGHT$
 !
@@ -30,6 +30,7 @@ module mpi_f08
   use mpi_f08_interfaces  ! this module contains the  mpi_f08 interface declarations
   use pmpi_f08_interfaces ! this module contains the pmpi_f08 interface declarations
   use mpi_f08_callbacks   ! this module contains the mpi_f08 attribute callback subroutines
+  use mpi_f08_interfaces_callbacks ! this module contains the mpi_f08 callback interfaces
 
 !
 ! Declaration of the interfaces to the ompi impl files