55 lines
1.9 KiB
Plaintext
55 lines
1.9 KiB
Plaintext
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dnl -*- shell-script -*-
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dnl
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dnl Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
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dnl University Research and Technology
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dnl Corporation. All rights reserved.
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dnl Copyright (c) 2004-2005 The University of Tennessee and The University
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dnl of Tennessee Research Foundation. All rights
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dnl reserved.
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dnl Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
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dnl University of Stuttgart. All rights reserved.
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dnl Copyright (c) 2004-2005 The Regents of the University of California.
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dnl All rights reserved.
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dnl Copyright (c) 2010-2014 Cisco Systems, Inc. All rights reserved.
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dnl $COPYRIGHT$
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dnl
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dnl Additional copyrights may follow
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dnl
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dnl $HEADER$
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dnl
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# Check whether or not the Fortran compiler supports the "optional"
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# keyword or not.
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# OMPI_FORTRAN_CHECK_OPTIONAL_ARGS([action if found],
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# [action if not found])
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# ----------------------------------------------------
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AC_DEFUN([OMPI_FORTRAN_CHECK_OPTIONAL_ARGS],[
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AS_VAR_PUSHDEF([optional_var], [ompi_cv_fortran_optional])
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AC_CACHE_CHECK([if Fortran compiler supports optional arguments], optional_var,
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[AC_LANG_PUSH([Fortran])
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AC_COMPILE_IFELSE([AC_LANG_SOURCE([[program check_for_optional
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use, intrinsic :: iso_c_binding
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interface
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subroutine check_op(i, ierror)
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integer, intent(in), value :: i
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integer, intent(out), optional :: ierror
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end subroutine check_op
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end interface
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integer :: ierror
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call check_op(0)
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call check_op(1, ierror)
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end program]])],
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[AS_VAR_SET(optional_var, yes)],
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[AS_VAR_SET(optional_var, no)])
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AC_LANG_POP([Fortran])
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])
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AS_VAR_IF(optional_var, [yes], [$1], [$2])
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AS_VAR_POPDEF([optional_var])dnl
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])
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