config/ompi_find_type.m4

   1 dnl -*- shell-script -*-
   2 dnl
   3 dnl Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
   4 dnl                         University Research and Technology
   5 dnl                         Corporation.  All rights reserved.
   6 dnl Copyright (c) 2004-2005 The University of Tennessee and The University
   7 dnl                         of Tennessee Research Foundation.  All rights
   8 dnl                         reserved.
   9 dnl Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
  10 dnl                         University of Stuttgart.  All rights reserved.
  11 dnl Copyright (c) 2004-2005 The Regents of the University of California.
  12 dnl                         All rights reserved.
  13 dnl $COPYRIGHT$
  14 dnl
  15 dnl Additional copyrights may follow
  16 dnl
  17 dnl $HEADER$
  18 dnl
  19
  20 # OMPI_FIND_TYPE(type, [list of c types], abort if not found,
  21 #                target size, variable to set)
  22 # -----------------------------------------------------------
  23 AC_DEFUN([OMPI_FIND_TYPE],[
  24     AS_VAR_PUSHDEF([type_var], [ompi_cv_find_type_$1])
  25
  26     oft_abort_on_fail="$3"
  27     oft_target_size="$4"
  28
  29     AC_CACHE_CHECK([for C type corresponding to $1], type_var,
  30         [ # Loop over all the types handed to us
  31          oft_real_type=
  32          AS_IF([test "$oft_target_size" != ""],
  33              [m4_foreach(oft_type, [$2],
  34                   [if test -z "$oft_real_type"; then
  35                        if test "[$ac_cv_sizeof_]m4_bpatsubst(oft_type, [[^a-zA-Z0-9_]], [_])" = "$oft_target_size" ; then
  36                            oft_real_type="oft_type"
  37                        fi
  38                    fi
  39 ])])
  40          AS_IF([test -z "$oft_real_type"],
  41                [AS_VAR_SET(type_var, "not found")],
  42                [AS_VAR_SET(type_var, "$oft_real_type")])])
  43
  44     AS_IF([test "AS_VAR_GET(type_var)" == "not found"],
  45           [AC_MSG_WARN([*** Did not find corresponding C type])
  46            AS_IF([test "$oft_abort_on_fail" != "no"],
  47                  [AC_MSG_ERROR([Cannot continue])])])
  48
  49     if test "AS_VAR_GET(type_var)" = "not found" ; then
  50         $5=
  51     else
  52         $5=AS_VAR_GET(type_var)
  53     fi
  54
  55     unset oft_real_type oft_target_size
  56
  57     AS_VAR_POPDEF([type_var])dnl
  58 ])dnl