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openmpi/config/f90_get_precision.m4
George Bosilca d33801c0fa Rollback the last two commits.
svn merge -r 19823:19821 https://svn.open-mpi.org/svn/ompi/trunk ./

I copied the config directory in another location, and the original
.svn directory was replaced by the Open MPI one ... As a result my
first commit, applied the changes on the Open MPI trunk instead of
the other project.

This commit was SVN r19824.
2008-10-28 17:22:29 +00:00

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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 $COPYRIGHT$
dnl
dnl Additional copyrights may follow
dnl
dnl $HEADER$
dnl
# OMPI_F90_GET_PRECISION(type, shell variable to set)
# ---------------------------------------------------
AC_DEFUN([OMPI_F90_GET_PRECISION],[
AS_VAR_PUSHDEF([type_var], [ompi_cv_f90_precision_$1])
AC_CACHE_CHECK([precision of Fortran 90 $1], type_var,
[cat > conftestf.f90 <<EOF
program f90precision
$1 :: x
open(8, file="conftestval")
write(8, fmt="(I5)") precision(x)
close(8)
end program
EOF
# Compile
OMPI_LOG_COMMAND([$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 precision 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 precision of $1 when cross-compiling])],
[OMPI_LOG_COMMAND([./conftest],
[AS_VAR_SET(type_var, [`sed 's/ *//' conftestval`])],
[AC_MSG_ERROR([Could not determine precision of $1])])])
unset happy
rm -rf conftest*])
$2=AS_VAR_GET([type_var])
AS_VAR_POPDEF([type_var])dnl
])