configury: enable Fortran 2008 subarray prototype

so Open MPI can be configure'd with --enable-mpi-f08-subarray-prototype

Signed-off-by: Gilles Gouaillardet <gilles@rist.or.jp>

config/ompi_configure_options.m4

@@ -17,7 +17,7 @@ dnl Copyright (c) 2009      Los Alamos National Security, LLC.  All rights
 dnl                         reserved.
 dnl Copyright (c) 2009      Oak Ridge National Labs.  All rights reserved.
 dnl Copyright (c) 2013      Intel, Inc.  All rights reserved.
-dnl Copyright (c) 2015-2016 Research Organization for Information Science
+dnl Copyright (c) 2015-2017 Research Organization for Information Science
 dnl                         and Technology (RIST). All rights reserved.
 dnl
 dnl $COPYRIGHT$
@@ -244,11 +244,7 @@ OMPI_BUILD_FORTRAN_F08_SUBARRAYS=0
 AS_IF([test $OMPI_TRY_FORTRAN_BINDINGS -lt $OMPI_FORTRAN_USEMPIF08_BINDINGS],
       [AC_MSG_RESULT([none (use mpi_f08 disabled)])],
       [AS_IF([test "$enable_mpi_f08_subarray_prototype" = "yes"],
-             [OMPI_BUILD_FORTRAN_F08_SUBARRAYS=1
-              AC_MSG_RESULT([extra crispy (subarray prototype)])
-              AC_MSG_WARN([Sorry, the subarray prototype is no longer available])
-              AC_MSG_WARN([Contact your favorite OMPI developer and ask for it to be re-enabled])
-              AC_MSG_ERROR([Cannot continue])],
+             [OMPI_BUILD_FORTRAN_F08_SUBARRAYS=1],
              [AC_MSG_RESULT([regular (no subarray support)])])
       ])
 AC_DEFINE_UNQUOTED([OMPI_BUILD_FORTRAN_F08_SUBARRAYS],

config/ompi_ext.m4

@@ -5,7 +5,7 @@ dnl                         University Research and Technology
 dnl                         Corporation.  All rights reserved.
 dnl Copyright (c) 2009-2015 Cisco Systems, Inc.  All rights reserved.
 dnl Copyright (c) 2011-2012 Oak Ridge National Labs.  All rights reserved.
-dnl Copyright (c) 2015      Research Organization for Information Science
+dnl Copyright (c) 2015-2017 Research Organization for Information Science
 dnl                         and Technology (RIST). All rights reserved.
 dnl Copyright (c) 2017      The University of Tennessee and The University
 dnl                         of Tennessee Research Foundation.  All rights
@@ -216,8 +216,7 @@ EOF
 
     # Only build this mpi_f08_ext module if we're building the "use
     # mpi_f08" module *and* it's the non-descriptor one.
-    AS_IF([test $OMPI_BUILD_FORTRAN_BINDINGS -ge $OMPI_FORTRAN_USEMPIF08_BINDINGS && \
-           test $OMPI_BUILD_FORTRAN_F08_SUBARRAYS -eq 0],
+    AS_IF([test $OMPI_BUILD_FORTRAN_BINDINGS -ge $OMPI_FORTRAN_USEMPIF08_BINDINGS]
           [OMPI_BUILD_FORTRAN_USEMPIF08_EXT=1],
           [OMPI_BUILD_FORTRAN_USEMPIF08_EXT=0])
     AM_CONDITIONAL(OMPI_BUILD_FORTRAN_USEMPIF08_EXT,