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openmpi/ompi/config/f90_get_range.m4

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dnl -*- shell-script -*-
dnl
dnl Copyright (c) 2004-2006 The Trustees of Indiana University and Indiana
dnl University Research and Technology
dnl Corporation. All rights reserved.
dnl Copyright (c) 2004-2005 The University of Tennessee and The University
dnl of Tennessee Research Foundation. All rights
dnl reserved.
dnl Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
dnl University of Stuttgart. All rights reserved.
dnl Copyright (c) 2004-2005 The Regents of the University of California.
dnl All rights reserved.
dnl Copyright (c) 2010 Cisco Systems, Inc. All rights reserved.
dnl $COPYRIGHT$
dnl
dnl Additional copyrights may follow
dnl
dnl $HEADER$
dnl
# OMPI_F90_GET_RANGE(type, shell variable to set)
# -----------------------------------------------
AC_DEFUN([OMPI_F90_GET_RANGE],[
AS_VAR_PUSHDEF([type_var], [ompi_cv_f90_range_$1])
AC_CACHE_CHECK([range of Fortran 90 $1], type_var,
[cat > conftestf.f90 <<EOF
program f90range
$1 :: x
open(8, file="conftestval")
write(8, fmt="(I5)") range(x)
close(8)
end program
EOF
# Compile
OMPI_LOG_COMMAND([$FC $FCFLAGS $FCFLAGS_f90 -o conftest conftestf.f90 $LDFLAGS $LIBS], [happy="yes"], [happy="no"])
if test "$happy" = "no"; then
OMPI_LOG_MSG([here is the fortran 90 program:], 1)
OMPI_LOG_FILE([conftestf.f90])
AC_MSG_WARN([Could not determine range of $1])
AC_MSG_WARN([See config.log for details])
AC_MSG_ERROR([Cannot continue])
fi
# If not cross compiling, try to run (if we're cross
# compiling, then the value should have been loaded by the
# cache already)
AS_IF([test "$cross_compiling" = "yes"],
[AC_MSG_ERROR([Can not determine range of $1 when cross-compiling])],
[OMPI_LOG_COMMAND([./conftest],
[AS_VAR_SET(type_var, [`sed 's/ *//' conftestval`])],
[AC_MSG_ERROR([Could not determine range of $1])])])
unset happy
rm -rf conftest*])
AS_VAR_COPY([$2], [type_var])
AS_VAR_POPDEF([type_var])dnl
])