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	Index: trunk/configure.ac
	===================================================================
	--- trunk/configure.ac (revision 4089)
	+++ trunk/configure.ac (revision 4090)
	@@ -1,672 +1,673 @@
	dnl configure.ac -- Main configuration script for WHIZARD
	dnl
	dnl Process this file with autoconf to produce a configure script.
	dnl ************************************************************************
	dnl configure -- Main configuration script for WHIZARD
	dnl configure.ac -- WHIZARD configuration
	dnl
	dnl Copyright (C) 1999-2013 by
	dnl Wolfgang Kilian <kilian@physik.uni-siegen.de>
	dnl Thorsten Ohl <ohl@physik.uni-wuerzburg.de>
	dnl Juergen Reuter <juergen.reuter@desy.de>
	dnl Christian Speckner <cnspeckn@googlemail.com>
	dnl and others
	dnl
	dnl WHIZARD is free software; you can redistribute it and/or modify it
	dnl under the terms of the GNU General Public License as published by
	dnl the Free Software Foundation; either version 2, or (at your option)
	dnl any later version.
	dnl
	dnl WHIZARD is distributed in the hope that it will be useful, but
	dnl WITHOUT ANY WARRANTY; without even the implied warranty of
	dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	dnl GNU General Public License for more details.
	dnl
	dnl You should have received a copy of the GNU General Public License
	dnl along with this program; if not, write to the Free Software
	dnl Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
	dnl
	dnl ***********************************************************************
	dnl Environment variables that can be set by the user:
	dnl FC Fortran compiler
	dnl FCFLAGS Fortran compiler flags
	dnl
	dnl ***********************************************************************
	dnl Start configuration
	AC_INIT([WHIZARD],[2.2.0])
	AM_INIT_AUTOMAKE([1.11 color-tests parallel-tests])
	AC_PREREQ([2.65])

	dnl Caveat: automake internal macro
	AM_MAKE_INCLUDE

	########################################################################
	### Package-specific initialization

	AC_MSG_NOTICE([**************************************************************])
	WO_CONFIGURE_SECTION([Start of package configuration])

	### Further version information
	PACKAGE_DATE="Apr 08 2013"
	PACKAGE_STATUS="release"

	AC_SUBST(PACKAGE_DATE)
	AC_SUBST(PACKAGE_STATUS)

	AC_MSG_NOTICE([**************************************************************])
	AC_MSG_NOTICE([Package name: AC_PACKAGE_NAME()])
	AC_MSG_NOTICE([Version: AC_PACKAGE_VERSION()])
	AC_MSG_NOTICE([Date: $PACKAGE_DATE])
	AC_MSG_NOTICE([Status: $PACKAGE_STATUS])
	AC_MSG_NOTICE([**************************************************************])

	### Dump Package version and date to file 'VERSION'
	echo "$PACKAGE_STRING ($PACKAGE_STATUS) $PACKAGE_DATE" \
	> VERSION

	### Source directory, for testing purposes
	SRCDIR=`cd $srcdir && pwd`
	AC_SUBST([SRCDIR])

	### Build directory, for testing purposes
	BUILDDIR=`pwd`
	AC_SUBST([BUILDDIR])

	### Location of installed libraries and such
	eval BINDIR=$bindir
	case $BINDIR in
	NONE*) eval BINDIR=$prefix/bin ;;
	esac
	case $BINDIR in
	NONE*) BINDIR="\${prefix}/bin" ;;
	esac
	AC_SUBST([BINDIR])

	eval INCLUDEDIR=$includedir
	case $INCLUDEDIR in
	NONE*) eval INCLUDEDIR=$prefix/include ;;
	esac
	case $INCLUDEDIR in
	NONE*) INCLUDEDIR="\${prefix}/include" ;;
	esac
	AC_SUBST([INCLUDEDIR])

	### Location of installed libraries and such
	eval PKGLIBDIR=$libdir/$PACKAGE
	case $PKGLIBDIR in
	NONE*) eval PKGLIBDIR=$prefix/lib/$PACKAGE ;;
	esac
	case $PKGLIBDIR in
	NONE*) PKGLIBDIR="\${prefix}/lib/$PACKAGE" ;;
	esac
	AC_SUBST([PKGLIBDIR])

	### Location of installed system-independent data
	eval PKGDATADIR=$datarootdir/$PACKAGE
	case $PKGDATADIR in
	NONE*) eval PKGDATADIR=$prefix/share/$PACKAGE ;;
	esac
	case $PKGDATADIR in
	NONE*) PKGDATADIR="\${prefix}/share/$PACKAGE" ;;
	esac
	AC_SUBST([PKGDATADIR])

	### Location of installed TeX files and such
	eval PKGTEXDIR=$datarootdir/texmf/$PACKAGE
	case $PKGTEXDIR in
	NONE*) eval PKGTEXDIR=$prefix/share/texmf/$PACKAGE ;;
	esac
	case $PKGTEXDIR in
	NONE*) PKGTEXDIR="\${prefix}/share/texmf/$PACKAGE" ;;
	esac
	AC_SUBST([PKGTEXDIR])

	########################################################################
	### Required programs and checks

	###---------------------------------------------------------------------
	### GNU Tools

	WO_CONFIGURE_SECTION([Generic tools])

	### Initialize LIBTOOL
	LT_INIT(dlopen)

	LT_PREREQ([2.2.6b])

	AX_CHECK_GNU_MAKE()

	########################################################################
	### Host system MAC OS X check for XCode

	case $host in
	-darwin)
	WO_HLINE
	AC_MSG_NOTICE([Host is $host, checking for XCode])
	AC_PATH_PROG(XCODE_SELECT, xcode-select)
	# locate currently selected Xcode path
	if test "x$XCODE_SELECT" != "x"; then
	AC_MSG_CHECKING(Xcode location)
	DEVELOPER_DIR=`$XCODE_SELECT -print-path`
	AC_MSG_RESULT([$DEVELOPER_DIR])
	else
	DEVELOPER_DIR=/Developer
	fi
	AC_SUBST(DEVELOPER_DIR)

	XCODEPLIST=$DEVELOPER_DIR/Applications/Xcode.app/Contents/version.plist
	if test -r "$XCODEPLIST"; then
	AC_MSG_CHECKING(Xcode version)
	if test "x$DEFAULTS" != "x"; then
	XCODE_VERSION=`$DEFAULTS read $DEVELOPER_DIR/Applications/Xcode.app/Contents/version CFBundleShortVersionString`
	else
	XCODE_VERSION=`tr -d '\r\n' < $XCODEPLIST \| sed -e 's/.<key>CFBundleShortVersionString<\/key>.<string>$[[0-9.]]$<\/string>.*/\1/'`
	fi
	AC_MSG_RESULT([$XCODE_VERSION])
	AC_SUBST(XCODE_VERSION)
	fi
	WO_HLINE
	;;

	*)
	;;
	esac

	########################################################################
	### Enable the distribution tools
	### (default: disabled, to speed up compilation)

	AC_ARG_ENABLE([distribution],
	[AS_HELP_STRING([--enable-distribution],
	[build the distribution incl. all docu (developers only) [[no]]])])

	AC_CACHE_CHECK([whether we want to build the distribution],
	[wo_cv_distribution],
	[dnl
	if test "$enable_distribution" = "yes"; then
	wo_cv_distribution=yes
	else
	wo_cv_distribution=no
	fi])

	AM_CONDITIONAL([DISTRIBUTION],
	[test "$enable_distribution" = "yes"])

	########################################################################

	if test "$enable_shared" = no; then
	AC_MSG_ERROR([you've used --disable-shared which will not produce a working Whizard.])
	fi

	########################################################################
	### We include the m4 macro tool here
	AC_PATH_PROG(M4,m4,false)
	if test "$M4" = false; then
	AM_CONDITIONAL([M4_AVAILABLE],[false])
	else
	AM_CONDITIONAL([M4_AVAILABLE],[true])
	fi

	###---------------------------------------------------------------------
	### Dynamic runtime linking

	WO_CONFIGURE_SECTION([Dynamic runtime linking])

	### Look for libdl (should provide 'dlopen' and friends)
	AC_PROG_CC()
	WO_PROG_DL()

	### Define the conditional for static builds

	if test "$enable_static" = yes; then
	AM_CONDITIONAL([STATIC_AVAILABLE],[true])
	else
	AM_CONDITIONAL([STATIC_AVAILABLE],[false])
	fi

	###---------------------------------------------------------------------
	### Noweb

	WO_CONFIGURE_SECTION([Checks for 'noweb' system])

	### Enable/disable noweb and determine locations of notangle, cpif, noweave
	WO_PROG_NOWEB()

	###---------------------------------------------------------------------
	### LaTeX

	WO_CONFIGURE_SECTION([Checks for 'LaTeX' system])

	### Determine whether LaTeX is present
	AC_PROG_LATEX()
	AC_PROG_DVIPS()
	AC_PROG_PDFLATEX()
	AC_PROG_PS2PDF()
	AC_PROG_EPSPDF()
	AC_PROG_EPSTOPDF()
	AC_PROG_SUPP_PDF()
	AC_PROG_GZIP()
	AC_PATH_PROG(ACROREAD,acroread,false)
	AC_PATH_PROG(GHOSTVIEW,gv ghostview,false)
	AC_PATH_PROG(DOT,dot,false)

	### Determine whether Metapost is present and whether event display is possible
	AC_PROG_MPOST()
	WO_CHECK_EVENT_ANALYSIS_METHODS()

	### We put here the check for HEVEA components as well
	WO_PROG_HEVEA()

	###---------------------------------------------------------------------
	### Fortran compiler

	WO_CONFIGURE_SECTION([Fortran compiler checks])

	### Determine default compiler to use
	user_FCFLAGS="${FCFLAGS}"
	AC_PROG_FC()

	### Choose FC standard for PYTHIA F77 files
	AC_PROG_F77([$FC])

	### Determine compiler vendor and version
	WO_FC_GET_VENDOR_AND_VERSION()

	-### Veto against gfortran 4.5.0
	+### Veto against gfortran 4.5.0-4.6.2
	WO_FC_VETO_GFORTRAN_45()
	+WO_FC_VETO_GFORTRAN_46012()

	### Work around the `-g' vs. `-g90' confusion at NAG:
	### (NB: apparently `echo -n' is not portable (OSX).
	### Let's hope that tr is ...)
	if test X"${user_FCFLAGS}" = X; then
	if test X"${FC_VENDOR}" = X"NAG"; then
	FCFLAGS="`for f in ${FCFLAGS}; do case $f in "-g") echo "-g90";; *) echo $f;; esac; done \| tr '\n\r' ' '`"
	fi
	fi

	### Require extension '.f90' for all compiler checks
	AC_FC_SRCEXT([f90])

	### Determine flags and extensions
	WO_FC_PARAMETERS()

	### Determine flags for linking the Fortran runtime library
	WO_FC_LIBRARY_LDFLAGS()

	### Check for Fortran 95 features
	WO_FC_CHECK_F95()

	### Check for allocatable subobjects (TR15581)
	WO_FC_CHECK_TR15581()

	### Check for allocatable scalars
	WO_FC_CHECK_ALLOCATABLE_SCALARS()

	### Check for ISO C binding support
	WO_FC_CHECK_C_BINDING()

	### Check for procedures pointers and abstract interfaces
	WO_FC_CHECK_PROCEDURE_POINTERS()

	### Check for type extension and further OO features
	WO_FC_CHECK_OO_FEATURES()

	### Check for F2003 command-line interface
	WO_FC_CHECK_CMDLINE()

	### Check for F2003-style access to environment variables
	WO_FC_CHECK_ENVVAR()

	### Check for the flush statement
	WO_FC_CHECK_FLUSH()

	### Check for iso_fortran_env
	WO_FC_CHECK_ISO_FORTRAN_ENV()

	### Check for quadruple precision support
	WO_FC_CHECK_QUADRUPLE()

	### Check for quadruple precision support in the C interface
	WO_FC_CHECK_QUADRUPLE_C()

	### Quadruple precision enforced upon request
	WO_FC_SET_PRECISION()

	### OpenMP threading activated upon request
	WO_FC_SET_OPENMP()

	### Profiling compilation enforced upon request
	WO_FC_SET_PROFILING()

	### Impure subroutines enforced upon request
	WO_FC_SET_OMEGA_IMPURE()

	### Find the extension of Fortran module files
	WO_FC_MODULE_FILE([FC_MODULE_NAME], [FC_MODULE_EXT], [$FC], [f90])


	###---------------------------------------------------------------------
	### O'Caml

	WO_CONFIGURE_SECTION([Objective Caml checks])

	### Check for ocamlc and its relatives
	AC_PROG_OCAML()
	if test "$enable_ocaml" != "no"; then
	AC_OCAML_VERSION_CHECK(310000)
	AC_PROG_OCAMLLEX()
	AC_PROG_OCAMLYACC()
	AC_PROG_OCAMLCP()
	### Ocamlweb is required to be newer than v0.9
	AC_PROG_OCAMLWEB(009000)
	AC_PROG_OCAML_LABLGTK()
	AC_PATH_PROGS(OCAMLDOT,ocamldot)
	AC_PATH_PROGS(OCAMLDEFUN,ocamldefun)
	else
	AC_MSG_NOTICE([WARNING: O'Caml and O'Mega matrix elements disabled by request!])
	AM_CONDITIONAL([OCAMLWEB_AVAILABLE],[false])
	fi

	########################################################################
	### Libraries

	###---------------------------------------------------------------------
	### LHAPDF

	WO_CONFIGURE_SECTION([LHAPDF])

	WO_PROG_LHAPDF()

	###---------------------------------------------------------------------
	### HepMC

	WO_CONFIGURE_SECTION([HepMC])

	AC_PROG_CXX()
	WO_PROG_HEPMC()

	###---------------------------------------------------------------------
	### STDHEP

	AC_PROG_FC()
	WO_CONFIGURE_SECTION([STDHEP])

	WO_PROG_STDHEP()

	###---------------------------------------------------------------------
	### PYTHIA

	WO_CONFIGURE_SECTION([SHOWERS PYTHIA MPI])

	WO_PROG_QCD()

	###---------------------------------------------------------------------
	### Extra flags for helping the linker finding libraries

	LDFLAGS_STATIC="$wo_ldflags_stdcpp"
	AC_SUBST([LDFLAGS_STATIC])

	########################################################################
	### Miscellaneous

	WO_CONFIGURE_SECTION([Numerical checks])

	###---------------------------------------------------------------------
	### Disable irrelevant optimization for parameter files
	### (default: disabled, to speed up compilation)

	AC_ARG_ENABLE([optimization-for-parameter-files],
	[AS_HELP_STRING([--enable-optimization-for-parameter-files],
	[enable (useless) optimization for parameter files [[no]]])])

	AC_CACHE_CHECK([whether we want optimization for parameter files],
	[wo_cv_optimization_for_parfiles],
	[dnl
	if test "$enable_optimization_for_parameter_files" = "yes"; then
	wo_cv_optimization_for_parfiles=yes
	else
	wo_cv_optimization_for_parfiles=no
	fi])

	AM_CONDITIONAL([OPTIMIZATION_FOR_PARFILES],
	[test "$enable_optimization_for_parameter_files" = "yes"])


	###---------------------------------------------------------------------
	### Disable default checks upon request

	AC_ARG_ENABLE([default_checks],
	[AS_HELP_STRING([--disable-default-checks],
	[disable the default self-checks [[no]]])])

	AC_CACHE_CHECK([whether we want the default self-checks],
	[wo_cv_default_checks],
	[dnl
	if test "$enable_default_checks" != "no"; then
	wo_cv_default_checks=yes
	else
	wo_cv_default_checks=no
	fi])

	AM_CONDITIONAL([DEFAULT_CHECKS],
	[test "$enable_default_checks" != "no"])

	### These are temporarily disabled
	enable_default_checks_orig=no
	AM_CONDITIONAL([DEFAULT_CHECKS_ORIG],
	[test "$enable_default_checks_orig" != "no"])

	###---------------------------------------------------------------------
	### Enable numerical checks upon request

	AC_ARG_ENABLE([extnum_checks],
	[AS_HELP_STRING([--enable-extnum-checks],
	[enable time-consuming extensive SM, SUSY and models checks [[no]]])])

	AC_CACHE_CHECK([whether we want extra extensive checks],
	[wo_cv_extnum_checks],
	[dnl
	if test "$enable_extnum_checks" = "yes"; then
	wo_cv_extnum_checks=yes
	else
	wo_cv_extnum_checks=no
	fi])

	AM_CONDITIONAL([EXT_NUM_CHECKS],
	[test "$enable_extnum_checks" = "yes"])

	########################################################################
	### Wrapup

	WO_CONFIGURE_SECTION([Finalize configuration])

	###--------------------------------------------------------------------
	### Main directory

	AC_CONFIG_FILES([Makefile])

	###---------------------------------------------------------------------
	### Subdirectory src

	AC_CONFIG_FILES([src/Makefile])

	###---------------------------------------------------------------------
	### Subdirectory src/hepmc

	AC_CONFIG_FILES([src/hepmc/Makefile])

	###---------------------------------------------------------------------
	### Subdirectory src/pythia: WHIZARD's PYTHIA version

	AC_CONFIG_FILES([src/pythia/Makefile])

	###---------------------------------------------------------------------
	### Subdirectory src/muli: multiple interactions

	AC_CONFIG_FILES([src/muli/Makefile])

	###---------------------------------------------------------------------
	### Subdirectory src/lhapdf: dummy library as LHAPDF replacement

	AC_CONFIG_FILES([src/lhapdf/Makefile])

	###---------------------------------------------------------------------
	### Subdirectory src/pdf_builtin: Builtin PDFs

	AC_CONFIG_FILES([src/pdf_builtin/Makefile])

	###---------------------------------------------------------------------
	### Subdirectory src/stdhep: dummy library as STDHEP replacement

	AC_CONFIG_FILES([src/stdhep/Makefile])

	###---------------------------------------------------------------------
	### Subdirectory src/shower: shower and all that

	AC_CONFIG_FILES([src/shower/Makefile])


	###---------------------------------------------------------------------
	### Subdirectory src/misc: numeric kinds, strings

	AC_CONFIG_FILES([src/misc/Makefile] [src/misc/kinds.f90])

	AC_CONFIG_FILES([src/misc/system_dependencies.f90], [
	maxlen=90
	i=1
	pat=""
	while test ${i} -le ${maxlen}; do pat="${pat}."; i=`expr ${i} + 1`; done
	pat="/^ \"${pat}/ s/${pat}/&\" \\/\\/ \\&\\
	\"/g"
	$SED "${pat}" < src/misc/system_dependencies.f90 > \
	src/misc/system_dependencies.tmp
	mv -f src/misc/system_dependencies.tmp src/misc/system_dependencies.f90
	])

	###---------------------------------------------------------------------
	### Subdirectory src/models

	AC_CONFIG_FILES([src/models/Makefile])

	###---------------------------------------------------------------------
	### Subdirectory src/models/threeshl_bundle

	AC_CONFIG_FILES([src/models/threeshl_bundle/Makefile])

	###---------------------------------------------------------------------
	### Subdirectory src/vamp

	AC_CONFIG_SUBDIRS([src/vamp])

	###---------------------------------------------------------------------
	### Subdirectory src/whizard-core

	AC_CONFIG_FILES([src/whizard-core/Makefile])

	###---------------------------------------------------------------------
	### Subdirectory src/prebuilt

	AC_CONFIG_FILES([src/prebuilt/Makefile])

	###---------------------------------------------------------------------
	### Subdirectory src/omega

	AC_CONFIG_SUBDIRS([src/omega])

	###---------------------------------------------------------------------
	### Subdirectory src/omega

	AC_CONFIG_FILES([src/feynmf/Makefile])

	###---------------------------------------------------------------------
	### Subdirectory src/circe1

	AC_CONFIG_SUBDIRS([src/circe1])

	###---------------------------------------------------------------------
	### Subdirectory src/circe2

	AC_CONFIG_SUBDIRS([src/circe2])

	###---------------------------------------------------------------------
	### Subdirectory src/gamelan: WHIZARD graphics package

	AC_CONFIG_FILES([src/gamelan/Makefile])

	AC_CONFIG_FILES([src/gamelan/gml], [chmod u+x src/gamelan/gml])

	###---------------------------------------------------------------------
	### Subdirectory share

	AC_CONFIG_FILES([share/Makefile])

	###---------------------------------------------------------------------
	### Subdirectory share/doc

	AC_CONFIG_FILES([share/doc/Makefile])

	###---------------------------------------------------------------------
	### Subdirectory share/models

	AC_CONFIG_FILES([share/models/Makefile])

	###---------------------------------------------------------------------
	### Subdirectory share/cuts

	AC_CONFIG_FILES([share/cuts/Makefile])

	###---------------------------------------------------------------------
	### Subdirectory share/beam-sim

	AC_CONFIG_FILES([share/beam-sim/Makefile])

	###---------------------------------------------------------------------
	### Subdirectory share/susy

	AC_CONFIG_FILES([share/susy/Makefile])

	###---------------------------------------------------------------------
	### Subdirectory share/examples

	AC_CONFIG_FILES([share/examples/Makefile])

	###---------------------------------------------------------------------
	### Subdirectory share/test

	AC_CONFIG_FILES([share/test/Makefile])

	###---------------------------------------------------------------------
	### Subdirectory share/muli

	AC_CONFIG_FILES([share/muli/Makefile])

	###---------------------------------------------------------------------
	### Subdirectory test

	AC_CONFIG_FILES([test/Makefile])

	AC_CONFIG_FILES([test/run_whizard.sh], [chmod u+x test/run_whizard.sh])

	###---------------------------------------------------------------------
	### Subdirectory libtool-config

	AC_CONFIG_SUBDIRS([libtool-config])

	###--------------------------------------------------------------------
	### Subdirectory scripts

	AC_CONFIG_FILES([scripts/Makefile])

	AC_CONFIG_FILES([scripts/whizard-config], [chmod u+x scripts/whizard-config])
	AC_CONFIG_FILES([scripts/whizard-setup.sh], [chmod u+x scripts/whizard-setup.sh])
	AC_CONFIG_FILES([scripts/whizard-setup.csh], [chmod u+x scripts/whizard-setup.csh])
	AC_CONFIG_FILES([scripts/libtool-config.sh], [chmod u+x scripts/libtool-config.sh])
	AC_CONFIG_FILES([scripts/libtool-relocate.sh], [chmod u+x scripts/libtool-relocate.sh])
	AC_CONFIG_FILES([scripts/whizard-relocate.sh], [chmod u+x scripts/whizard-relocate.sh])

	###--------------------------------------------------------------------

	AC_OUTPUT()

	########################################################################

	Index: trunk/m4/fortran.m4
	===================================================================
	--- trunk/m4/fortran.m4 (revision 4089)
	+++ trunk/m4/fortran.m4 (revision 4090)
	@@ -1,906 +1,924 @@
	dnl fortran.m4 -- Fortran compiler checks beyond Autoconf built-ins
	dnl

	dnl The standard Fortran compiler test is AC_PROG_FC.
	dnl At the end FC, FCFLAGS and FCFLAGS_f90 are set, if successful.

	### Determine vendor and version string.
	AC_DEFUN([WO_FC_GET_VENDOR_AND_VERSION],
	[dnl
	AC_REQUIRE([AC_PROG_FC])

	AC_CACHE_CHECK([the compiler ID string],
	[wo_cv_fc_id_string],
	[dnl
	$FC -V >conftest.log 2>&1
	$FC -version >>conftest.log 2>&1
	$FC --version >>conftest.log 2>&1

	wo_fc_grep_GFORTRAN=`$GREP -i 'GNU Fortran' conftest.log \| head -1`
	wo_fc_grep_G95=`$GREP -i 'g95' conftest.log \| $GREP -i 'gcc' \| head -1`
	wo_fc_grep_NAG=`$GREP 'NAG' conftest.log \| head -1`
	wo_fc_grep_Intel=`$GREP 'IFORT' conftest.log \| head -1`
	wo_fc_grep_Sun=`$GREP 'Sun' conftest.log \| head -1`
	wo_fc_grep_Lahey=`$GREP 'Lahey' conftest.log \| head -1`
	wo_fc_grep_PGF90=`$GREP 'pgf90' conftest.log \| head -1`
	wo_fc_grep_PGF95=`$GREP 'pgf95' conftest.log \| head -1`
	wo_fc_grep_PGHPF=`$GREP 'pghpf' conftest.log \| head -1`
	wo_fc_grep_default=`cat conftest.log \| head -1`

	if test -n "$wo_fc_grep_GFORTRAN"; then
	wo_cv_fc_id_string=$wo_fc_grep_GFORTRAN
	elif test -n "$wo_fc_grep_G95"; then
	wo_cv_fc_id_string=$wo_fc_grep_G95
	elif test -n "$wo_fc_grep_NAG"; then
	wo_cv_fc_id_string=$wo_fc_grep_NAG
	elif test -n "$wo_fc_grep_Intel"; then
	wo_cv_fc_id_string=$wo_fc_grep_Intel
	elif test -n "$wo_fc_grep_Sun"; then
	wo_cv_fc_id_string=$wo_fc_grep_Sun
	elif test -n "$wo_fc_grep_Lahey"; then
	wo_cv_fc_id_string=$wo_fc_grep_Lahey
	elif test -n "$wo_fc_grep_PGF90"; then
	wo_cv_fc_id_string=$wo_fc_grep_PGF90
	elif test -n "$wo_fc_grep_PGF95"; then
	wo_cv_fc_id_string=$wo_fc_grep_PGF95
	elif test -n "$wo_fc_grep_PGHPF"; then
	wo_cv_fc_id_string=$wo_fc_grep_PGHPF
	else
	wo_cv_fc_id_string=$wo_fc_grep_default
	fi

	rm -f conftest.log
	])
	FC_ID_STRING="$wo_cv_fc_id_string"
	AC_SUBST([FC_ID_STRING])

	AC_CACHE_CHECK([the compiler vendor],
	[wo_cv_fc_vendor],
	[dnl
	if test -n "$wo_fc_grep_GFORTRAN"; then
	wo_cv_fc_vendor="gfortran"
	elif test -n "$wo_fc_grep_G95"; then
	wo_cv_fc_vendor="g95"
	elif test -n "$wo_fc_grep_NAG"; then
	wo_cv_fc_vendor="NAG"
	elif test -n "$wo_fc_grep_Intel"; then
	wo_cv_fc_vendor="Intel"
	elif test -n "$wo_fc_grep_Sun"; then
	wo_cv_fc_vendor="Sun"
	elif test -n "$wo_fc_grep_Lahey"; then
	wo_cv_fc_vendor="Lahey"
	elif test -n "$wo_fc_grep_PGF90"; then
	wo_cv_fc_vendor="PGI"
	elif test -n "$wo_fc_grep_PGF95"; then
	wo_cv_fc_vendor="PGI"
	elif test -n "$wo_fc_grep_PGHPF"; then
	wo_cv_fc_vendor="PGI"
	else
	wo_cv_fc_vendor="unknown"
	fi
	])
	FC_VENDOR="$wo_cv_fc_vendor"


	AC_SUBST([FC_VENDOR])

	AM_CONDITIONAL([FC_IS_GFORTRAN],
	[test "$FC_VENDOR" = gfortran])

	AM_CONDITIONAL([FC_IS_NAG],
	[test "$FC_VENDOR" = NAG])

	AC_CACHE_CHECK([the compiler version],
	[wo_cv_fc_version],
	[dnl
	case $FC_VENDOR in
	gfortran)
	wo_cv_fc_version=[`echo $FC_ID_STRING \| $SED -e 's/.$[0-9][0-9]\.[0-9][0-9]\.[0-9][0-9]$.*/\1/'`]
	;;
	g95)
	wo_cv_fc_version=[`echo $FC_ID_STRING \| $SED -e 's/.g95 $[0-9][0-9]\.[0-9][0-9]$.$/\1/'`]
	;;
	NAG)
	wo_cv_fc_version=[`echo $FC_ID_STRING \| $SED -e 's/.* Release $[0-9][0-9]\.[0-9][0-9].*$$/\1/'`]
	;;
	Intel)
	wo_cv_fc_version=[`echo $FC_ID_STRING \| $SED -e 's/[a-zA-Z]//g;s/[0-9]\{8\}$//g'`]
	;;
	Sun)
	wo_cv_fc_version=[`echo $FC_ID_STRING \| $SED -e 's/.* Fortran 95 $[0-9][0-9]\.[0-9][0-9]$ .*/\1/'`]
	;;
	PGI)
	wo_cv_fc_version=[`echo $FC_ID_STRING \| $SED -e 's/[a-zA-Z]//g;s/^[0-9]\{2\}//g;s/32.\\|64.//g'`]
	;;
	*)
	wo_cv_fc_version="unknown"
	;;
	esac
	])
	FC_VERSION="$wo_cv_fc_version"
	AC_SUBST([FC_VERSION])

	### Catch insufficient object-orientation in gfortran 4.5.x
	if test "$wo_cv_fc_vendor" = "gfortran" -a "$wo_cv_fc_version" = "4.5.0" \|\| test "$wo_cv_fc_vendor" = "gfortran" -a "$wo_cv_fc_version" = "4.5.1" \|\| test "$wo_cv_fc_vendor" = "gfortran" -a "$wo_cv_fc_version" = "4.5.2" \|\| test "$wo_cv_fc_vendor" = "gfortran" -a "$wo_cv_fc_version" = "4.5.3" \|\| test "$wo_cv_fc_vendor" = "gfortran" -a "$wo_cv_fc_version" = "4.5.4"; then
	FC_IS_GFORTRAN_45="yes"
	else
	FC_IS_GFORTRAN_45="no"
	fi
	AC_SUBST([FC_IS_GFORTRAN_45])

	+### Catch buggy object-orientation in gfortran 4.6.0,1,2
	+if test "$wo_cv_fc_vendor" = "gfortran" -a "$wo_cv_fc_version" = "4.6.0" \|\| test "$wo_cv_fc_vendor" = "gfortran" -a "$wo_cv_fc_version" = "4.6.1" \|\| test "$wo_cv_fc_vendor" = "gfortran" -a "$wo_cv_fc_version" = "4.6.2"; then
	+FC_IS_GFORTRAN_46012="yes"
	+ else
	+FC_IS_GFORTRAN_46012="no"
	+fi
	+AC_SUBST([FC_IS_GFORTRAN_46012])
	+
	AC_CACHE_CHECK([the major version],
	[wo_cv_fc_major_version],
	[wo_cv_fc_major_version=[`echo $wo_cv_fc_version \| $SED -e 's/$[0-9][0-9]$\../\1/'`]
	])
	FC_MAJOR_VERSION="$wo_cv_fc_major_version"
	AC_SUBST([FC_MAJOR_VERSION])
	])
	### end WO_FC_GET_VENDOR_AND_VERSION

	AC_DEFUN([WO_FC_VETO_GFORTRAN_45],
	[dnl
	if test "$FC_IS_GFORTRAN_45" = "yes"; then
	AC_MSG_NOTICE([error: ***************************************************************])
	AC_MSG_NOTICE([error: gfortran 4.5.x object orientation support insufficient.])
	AC_MSG_ERROR([***************************************************************])
	fi
	])

	+AC_DEFUN([WO_FC_VETO_GFORTRAN_46012],
	+[dnl
	+if test "$FC_IS_GFORTRAN_46012" = "yes"; then
	+AC_MSG_NOTICE([error: ***************************************************************])
	+AC_MSG_NOTICE([error: gfortran 4.6.{0,1,2} are too buggy, we don't support them. ])
	+AC_MSG_NOTICE([error: Please upgrade to at least 4.6.3 or a newer release series. ])
	+AC_MSG_ERROR([***************************************************************])
	+fi
	+])
	+
	### Determine Fortran flags and file extensions
	AC_DEFUN([WO_FC_PARAMETERS],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	AC_REQUIRE([_LT_COMPILER_PIC])
	AC_LANG([Fortran])

	AC_MSG_CHECKING([for $FC flags])
	AC_MSG_RESULT([$FCFLAGS])

	AC_MSG_CHECKING([for $FC flag to produce position-independent code])
	AC_MSG_RESULT([$lt_prog_compiler_pic_FC])
	FCFLAGS_PIC=$lt_prog_compiler_pic_FC
	AC_SUBST([FCFLAGS_PIC])

	AC_MSG_CHECKING([for $FC source extension])
	AC_MSG_RESULT([$ac_fc_srcext])
	FC_SRC_EXT=$ac_fc_srcext
	AC_SUBST([FC_SRC_EXT])

	AC_MSG_CHECKING([for object file extension])
	AC_MSG_RESULT([$ac_objext])
	OBJ_EXT=$ac_objext
	AC_SUBST([OBJ_EXT])
	])
	### end WO_FC_PARAMETERS


	### Determine runtime libraries
	### The standard check is insufficient for some compilers
	AC_DEFUN([WO_FC_LIBRARY_LDFLAGS],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	case "$FC" in
	nagfor*)
	WO_NAGFOR_LIBRARY_LDFLAGS()
	;;
	*)
	AC_FC_LIBRARY_LDFLAGS
	;;
	esac
	])

	### Check the NAG Fortran compiler
	### Use the '-dryrun' feature and extract the libraries from the link command
	### Note that the linker is gcc, not ld
	AC_DEFUN([WO_NAGFOR_LIBRARY_LDFLAGS],
	[dnl
	AC_CACHE_CHECK([Fortran libraries of $FC],
	[wo_cv_fc_libs],
	[dnl
	if test -z "$FCLIBS"; then
	AC_LANG([Fortran])
	AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
	wo_save_fcflags=$FCFLAGS
	FCFLAGS="-dryrun"
	eval "set x $ac_link"
	echo "set x $ac_link"
	shift
	_AS_ECHO_LOG([$[*]])
	wo_nagfor_output=`eval $ac_link AS_MESSAGE_LOG_FD>&1 2>&1`
	echo "$wo_nagfor_output" >&AS_MESSAGE_LOG_FD
	FCFLAGS=$wo_save_fcflags
	wo_cv_fc_libs=`echo $wo_nagfor_output \| $SED -e 's/.* -o conftest $.*$$/\1/' \| $SED -e "s/conftest.$ac_objext //"`
	else
	wo_cv_fc_libs=$FCLIBS
	fi
	])
	FCLIBS=$wo_cv_fc_libs
	AC_SUBST([FCLIBS])
	])

	### Check for basic F95 features
	AC_DEFUN([WO_FC_CHECK_F95],
	[dnl
	AC_CACHE_CHECK([whether $FC supports Fortran 95 features],
	[wo_cv_fc_supports_f95],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	AC_LANG([Fortran])
	AC_COMPILE_IFELSE([dnl
	program conftest
	integer, dimension(2) :: ii
	integer :: i
	type :: foo
	integer, pointer :: bar => null ()
	end type foo
	forall (i = 1:2) ii(i) = i
	contains
	elemental function f(x)
	real, intent(in) :: x
	real :: f
	f = x
	end function f
	pure function g (x) result (gx)
	real, intent(in) :: x
	real :: gx
	gx = x
	end function g
	end program conftest
	],
	[wo_cv_fc_supports_f95="yes"],
	[wo_cv_fc_supports_f95="no"])
	])
	FC_SUPPORTS_F95="$wo_cv_fc_supports_f95"
	AC_SUBST([FC_SUPPORTS_F95])
	if test "$FC_SUPPORTS_F95" = "no"; then
	AC_MSG_NOTICE([error: ******************************************************************])
	AC_MSG_NOTICE([error: Fortran compiler is not a genuine F95 compiler, configure aborted.])
	AC_MSG_ERROR([******************************************************************])
	fi])
	### end WO_FC_CHECK_F95

	### Check for the TR15581 extensions (allocatable subobjects)
	AC_DEFUN([WO_FC_CHECK_TR15581],
	[AC_CACHE_CHECK([whether $FC supports allocatable subobjects],
	[wo_cv_fc_allocatable],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	AC_LANG([Fortran])
	AC_COMPILE_IFELSE([dnl
	program conftest
	type :: foo
	integer, dimension(:), allocatable :: bar
	end type foo
	end program conftest
	],
	[wo_cv_fc_allocatable="yes"],
	[wo_cv_fc_allocatable="no"])
	])
	FC_SUPPORTS_ALLOCATABLE="$wo_cv_fc_allocatable"
	AC_SUBST([FC_SUPPORTS_ALLOCATABLE])
	if test "$FC_SUPPORTS_ALLOCATABLE" = "no"; then
	AC_MSG_NOTICE([error: ****************************************************************************])
	AC_MSG_NOTICE([error: Fortran compiler does not support allocatable structures, configure aborted.])
	AC_MSG_ERROR([****************************************************************************])
	fi])
	### end WO_FC_CHECK_TR15581


	### Check for allocatable scalars
	AC_DEFUN([WO_FC_CHECK_ALLOCATABLE_SCALARS],
	[AC_CACHE_CHECK([whether $FC supports allocatable scalars],
	[wo_cv_fc_allocatable_scalars],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	AC_LANG([Fortran])
	AC_COMPILE_IFELSE([dnl
	program conftest
	type :: foo
	integer, allocatable :: bar
	end type foo
	end program conftest
	],
	[wo_cv_fc_allocatable_scalars="yes"],
	[wo_cv_fc_allocatable_scalars="no"])
	])
	FC_SUPPORTS_ALLOCATABLE_SCALARS="$wo_cv_fc_allocatable"
	AC_SUBST([FC_SUPPORTS_ALLOCATABLE_SCALARS])
	])
	### end WO_FC_CHECK_ALLOCATABLE_SCALARS


	### Check for the C bindings extensions of Fortran 2003
	AC_DEFUN([WO_FC_CHECK_C_BINDING],
	[AC_CACHE_CHECK([whether $FC supports ISO C binding and standard numeric types],
	[wo_cv_fc_c_binding],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	AC_LANG([Fortran])
	AC_COMPILE_IFELSE([dnl
	program conftest
	use iso_c_binding
	type, bind(c) :: t
	integer(c_int) :: i
	real(c_float) :: x1
	real(c_double) :: x2
	complex(c_float_complex) :: z1
	complex(c_double_complex) :: z2
	end type t
	end program conftest
	],
	[wo_cv_fc_c_binding="yes"],
	[wo_cv_fc_c_binding="no"])
	])
	FC_SUPPORTS_C_BINDING="$wo_cv_fc_c_binding"
	AC_SUBST([FC_SUPPORTS_C_BINDING])
	if test "$FC_SUPPORTS_C_BINDING" = "no"; then
	AC_MSG_NOTICE([error: *******************************************************************])
	AC_MSG_NOTICE([error: Fortran compiler does not support ISO C binding, configure aborted.])
	AC_MSG_ERROR([********************************************************************])
	fi
	])
	### end WO_FC_CHECK_C_BINDING


	### Check for procedure pointers
	AC_DEFUN([WO_FC_CHECK_PROCEDURE_POINTERS],
	[AC_CACHE_CHECK([whether $FC supports procedure pointers (F2003)],
	[wo_cv_prog_f03_procedure_pointers],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	AC_LANG([Fortran])
	AC_COMPILE_IFELSE([dnl
	program conftest
	type :: foo
	procedure (proc_template), nopass, pointer :: proc => null ()
	end type foo
	abstract interface
	subroutine proc_template ()
	end subroutine proc_template
	end interface
	end program conftest
	],
	[wo_cv_prog_f03_procedure_pointers="yes"],
	[wo_cv_prog_f03_procedure_pointers="no"])
	])
	FC_SUPPORTS_PROCEDURE_POINTERS="$wo_cv_prog_f03_procedure_pointers"
	AC_SUBST([FC_SUPPORTS_PROCEDURE_POINTERS])
	if test "$FC_SUPPORTS_PROCEDURE_POINTERS" = "no"; then
	AC_MSG_NOTICE([error: ***************************************************************************])
	AC_MSG_NOTICE([error: Fortran compiler does not understand procedure pointers, configure aborted.])
	AC_MSG_ERROR([***************************************************************************])
	fi])
	### end WO_FC_CHECK_PROCEDURE_POINTERS


	### Check for the OO extensions of Fortran 2003
	AC_DEFUN([WO_FC_CHECK_OO_FEATURES],
	[AC_CACHE_CHECK([whether $FC supports OO features (F2003)],
	[wo_cv_prog_f03_oo_features],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	AC_LANG([Fortran])
	AC_COMPILE_IFELSE([dnl
	module conftest
	type, abstract :: foo
	contains
	procedure (proc_template), deferred :: proc
	end type foo
	type, extends (foo) :: foobar
	contains
	procedure :: proc
	end type foobar
	abstract interface
	subroutine proc_template (f)
	import foo
	class(foo), intent(inout) :: f
	end subroutine proc_template
	end interface
	contains
	subroutine proc (f)
	class(foobar), intent(inout) :: f
	end subroutine proc
	end module conftest
	program main
	use conftest
	end program main
	],
	[wo_cv_prog_f03_oo_features="yes"],
	[wo_cv_prog_f03_oo_features="no"])
	])
	FC_SUPPORTS_OO_FEATURES="$wo_cv_prog_f03_oo_features"
	AC_SUBST([FC_SUPPORTS_OO_FEATURES])
	])
	### end WO_FC_CHECK_OO_FEATURES


	### Check for the command line interface of Fortran 2003
	### We actually have to link in order to check availability
	AC_DEFUN([WO_FC_CHECK_CMDLINE],
	[AC_CACHE_CHECK([whether $FC interfaces the command line (F2003)],
	[wo_cv_fc_cmdline],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	AC_LANG([Fortran])
	AC_LINK_IFELSE([dnl
	program conftest
	call get_command_argument (command_argument_count ())
	end program conftest
	],
	[wo_cv_fc_cmdline="yes"],
	[wo_cv_fc_cmdline="no"])
	])
	FC_SUPPORTS_CMDLINE="$wo_cv_fc_cmdline"
	AC_SUBST([FC_SUPPORTS_CMDLINE])
	if test "$FC_SUPPORTS_CMDLINE" = "no"; then
	AC_MSG_NOTICE([error: ******************************************************************])
	AC_MSG_NOTICE([error: Fortran compiler does not support get_command_argument; configure aborted.])
	AC_MSG_ERROR([******************************************************************])
	fi
	])
	### end WO_FC_CHECK_CMDLINE

	### Check whether we can access environment variables (2003 standard)
	### We actually have to link in order to check availability
	AC_DEFUN([WO_FC_CHECK_ENVVAR],
	[AC_CACHE_CHECK([whether $FC provides access to environment variables (F2003)],
	[wo_cv_fc_envvar],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	AC_LANG([Fortran])
	AC_LINK_IFELSE([dnl
	program conftest
	character(len=256) :: home
	call get_environment_variable ("HOME", home)
	end program conftest
	],
	[wo_cv_fc_envvar="yes"],
	[wo_cv_fc_envvar="no"])
	])
	FC_SUPPORTS_ENVVAR="$wo_cv_fc_envvar"
	AC_SUBST([FC_SUPPORTS_ENVVAR])
	if test "$FC_SUPPORTS_ENVVAR" = "no"; then
	AC_MSG_NOTICE([error: ***************************************************************************])
	AC_MSG_NOTICE([error: Fortran compiler does not support get_environment_variable; configure aborted.])
	AC_MSG_ERROR([***************************************************************************])
	fi])
	### end WO_FC_CHECK_ENVVAR

	### Check whether the flush statement is supported
	AC_DEFUN([WO_FC_CHECK_FLUSH],
	[AC_CACHE_CHECK([whether $FC supports the flush statement (F2003)],
	[wo_cv_fc_flush],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	AC_LANG([Fortran])
	AC_COMPILE_IFELSE([dnl
	program conftest
	implicit none
	integer, parameter :: u=50
	open (u, action="readwrite", status="scratch")
	write (u, *) "test"
	flush (u)
	close (u)
	end program conftest
	],
	[wo_cv_fc_flush="yes"],
	[wo_cv_fc_flush="no"])
	])
	FC_SUPPORTS_FLUSH="$wo_cv_fc_flush"
	AC_SUBST([FC_SUPPORTS_FLUSH])
	if test "$FC_SUPPORTS_FLUSH" = "no"; then
	AC_MSG_NOTICE([error: ***************************************************************************])
	AC_MSG_NOTICE([error: Fortran compiler does not support the flush statement; configure aborted.])
	AC_MSG_ERROR([***************************************************************************])
	fi])
	### end WO_FC_CHECK_FLUSH

	### Check for iso_fortran_env
	AC_DEFUN([WO_FC_CHECK_ISO_FORTRAN_ENV],
	[AC_ARG_ENABLE([iso_fortran_env],
	[AC_HELP_STRING([--disable-iso_fortran_env],
	[disable use of iso_fortran_env, even if the compiler supports it]
	)],
	[], [enable_iso_fortran_env=yes]
	)
	if test "$enable_iso_fortran_env" = yes; then
	AC_CACHE_CHECK([whether $FC supports iso_fortran_env (F2003)],
	[wo_cv_fc_iso_fortran_env],
	AC_REQUIRE([AC_PROG_FC])
	AC_LANG([Fortran])
	[AC_LINK_IFELSE(
	[dnl
	program conftest
	use iso_fortran_env
	implicit none
	integer :: i
	i = input_unit
	i = output_unit
	i = error_unit
	i = iostat_end
	i = iostat_eor
	end program conftest
	], [wo_cv_fc_iso_fortran_env=yes], [wo_cv_fc_iso_fortran_env=no]
	)]
	)
	test "$wo_cv_fc_iso_fortran_env" = no && iso_fortran_env_stub=yes
	else
	AC_CHECKING([whether $FC supports iso_fortran_env (F2003)... disabled])
	iso_fortran_env_stub=yes
	fi
	AM_CONDITIONAL([ISO_FORTRAN_ENV_STUB], [test -n "$iso_fortran_env_stub"])
	]
	)

	### Check for wrapping of linker flags
	### (nagfor 'feature': must be wrapped twice)
	AC_DEFUN([WO_FC_CHECK_LDFLAGS_WRAPPING],
	[AC_CACHE_CHECK([for wrapping of linker flags via -Wl],
	[wo_cv_fc_ldflags_wrapping],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	AC_LANG([Fortran])
	ldflags_tmp=$LDFLAGS
	LDFLAGS=-Wl,-rpath,/usr/lib
	AC_LINK_IFELSE(AC_LANG_PROGRAM(),
	[wo_cv_fc_ldflags_wrapping="once"],
	[wo_cv_fc_ldflags_wrapping="unknown"])
	if test "$wo_cv_fc_ldflags_wrapping" = "unknown"; then
	LDFLAGS=-Wl,-Wl,,-rpath,,/usr/lib
	AC_LINK_IFELSE(AC_LANG_PROGRAM(),
	[wo_cv_fc_ldflags_wrapping="twice"])
	fi
	LDFLAGS=$ldflags_tmp
	])
	FC_LDFLAGS_WRAPPING="$wo_cv_fc_ldflags_wrapping"
	AC_SUBST([FC_LDFLAGS_WRAPPING])
	])
	### end WO_FC_CHECK_LDFLAGS_WRAPPING

	### Check for OpenMP support
	AC_DEFUN([WO_FC_CHECK_OPENMP],
	[AC_CACHE_CHECK([whether $FC supports OpenMP],
	[wo_cv_fc_openmp],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	AC_LANG([Fortran])
	case $FC_VENDOR in
	gfortran)
	wo_cv_fc_openmp="yes"
	wo_cv_fcflags_openmp="-fopenmp"
	wo_cv_fc_openmp_header="use omp_lib"
	;;
	NAG)
	wo_cv_fc_openmp="no"
	;;
	Intel)
	wo_cv_fc_openmp="yes"
	wo_cv_fcflags_openmp="-openmp"
	wo_cv_fc_openmp_header="use omp_lib"
	;;
	PGI)
	wo_cv_fc_openmp="yes"
	wo_cv_fcflags_openmp="-mp"
	wo_cv_fc_openmp_header=""
	;;
	*)
	wo_cv_fc_openmp="no"
	;;
	esac
	if test "$wo_cv_fc_openmp"="yes"; then
	fcflags_tmp=$FCFLAGS
	FCFLAGS="$wo_cv_fcflags_openmp $FCFLAGS"
	unset OMP_NUM_THREADS
	AC_RUN_IFELSE([dnl
	program conftest
	$wo_cv_fc_openmp_header
	open (11, file="conftest.out", action="write", status="replace")
	write (11, "(I0)") omp_get_max_threads ()
	close (11)
	end program conftest
	],
	[dnl
	wo_cv_fc_openmp="yes"
	wo_cv_fc_openmp_thread_limit=`cat conftest.out`],
	[wo_cv_fc_openmp="no"],
	[wo_cv_fc_openmp="maybe [cross-compiling]"])
	FCFLAGS=$fcflags_tmp
	fi
	])
	if test "$wo_cv_fc_openmp" = "yes"; then
	AC_CACHE_CHECK([the default number of threads used by OpenMP],
	[wo_cv_fc_openmp_thread_limit])
	fi
	FC_SUPPORTS_OPENMP="$wo_cv_fc_openmp"
	AC_SUBST([FC_SUPPORTS_OPENMP])
	])
	### end WO_FC_CHECK_OPENMP

	### Enable/disable OpenMP support
	AC_DEFUN([WO_FC_SET_OPENMP],
	[dnl
	AC_REQUIRE([WO_FC_CHECK_OPENMP])
	AC_ARG_ENABLE([fc_openmp],
	[AS_HELP_STRING([--enable-fc-openmp],
	[use OpenMP for the Fortran code [[no]]])])
	AC_CACHE_CHECK([whether OpenMP is activated], [wo_cv_fc_use_openmp],
	[dnl
	if test "$FC_SUPPORTS_OPENMP" = "yes" -a "$enable_fc_openmp" = "yes"; then
	wo_cv_fc_use_openmp="yes"
	else
	wo_cv_fc_use_openmp="no"
	fi])
	AM_CONDITIONAL([FC_USE_OPENMP],
	[test "$wo_cv_fc_use_openmp" = "yes"])
	AM_COND_IF([FC_USE_OPENMP],
	[FC_OPENMP_ON=""
	FC_OPENMP_OFF="!"
	FCFLAGS_OPENMP="$wo_cv_fcflags_openmp"
	FC_OPENMP_HEADER="$wo_cv_fc_openmp_header"
	FC_OPENMP_DEFAULT_MAX_THREADS="$wo_cv_fc_openmp_thread_limit"
	],
	[FC_OPENMP_ON="!"
	FC_OPENMP_OFF=""
	FC_OPENMP_DEFAULT_MAX_THREADS="1"
	])
	AC_SUBST([FC_OPENMP_ON])
	AC_SUBST([FC_OPENMP_OFF])
	AC_SUBST([FCFLAGS_OPENMP])
	AC_SUBST([FC_OPENMP_HEADER])
	AC_SUBST([FC_OPENMP_DEFAULT_MAX_THREADS])
	])
	### end WO_FC_SET_OPENMP

	### Check for profiling support
	AC_DEFUN([WO_FC_CHECK_PROFILING],
	[AC_CACHE_CHECK([whether $FC supports profiling via -pg],
	[wo_cv_fc_profiling],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	AC_LANG([Fortran])
	fcflags_tmp=$FCFLAGS
	FCFLAGS="-pg $FCFLAGS"
	rm -f gmon.out
	AC_RUN_IFELSE([dnl
	program conftest
	end program conftest
	],
	[dnl
	if test -f gmon.out; then
	wo_cv_fc_profiling="yes"
	else
	wo_cv_fc_profiling="no"
	fi],
	[wo_cv_fc_profiling="no"],
	[wo_cv_fc_profiling="maybe [cross-compiling]"])
	rm -f gmon.out
	FCFLAGS=$fcflags_tmp
	])
	FC_SUPPORTS_PROFILING="$wo_cv_fc_profiling"
	AC_SUBST([FC_SUPPORTS_PROFILING])
	])
	### end WO_FC_CHECK_PROFILING

	### Enable/disable profiling support
	AC_DEFUN([WO_FC_SET_PROFILING],
	[dnl
	AC_REQUIRE([WO_FC_CHECK_PROFILING])
	AC_ARG_ENABLE([fc_profiling],
	[AS_HELP_STRING([--enable-fc-profiling],
	[use profiling for the Fortran code [[no]]])])
	AC_CACHE_CHECK([whether profiling is activated], [wo_cv_fc_prof],
	[dnl
	if test "$FC_SUPPORTS_PROFILING" = "yes" -a "$enable_fc_profiling" = "yes"; then
	wo_cv_fc_prof="yes"
	FCFLAGS_PROFILING="-pg"
	else
	wo_cv_fc_prof="no"
	FCFLAGS_PROFILING=""
	fi])
	AC_SUBST(FCFLAGS_PROFILING)
	AM_CONDITIONAL([FC_USE_PROFILING],
	[test -n "$FCFLAGS_PROFILING"])
	])
	### end WO_FC_SET_PROFILING

	### Enable/disable impure Omega compilation
	AC_DEFUN([WO_FC_SET_OMEGA_IMPURE],
	[dnl
	AC_REQUIRE([WO_FC_CHECK_F95])
	AC_ARG_ENABLE([impure_omega],
	[AS_HELP_STRING([--enable-fc-impure],
	[compile Omega libraries impure [[no]]])])
	AC_CACHE_CHECK([the default setting for impure omegalib], [wo_cv_fc_impure],
	[dnl
	if test "$impure_omega" = "yes" -o "$FC_SUPPORTS_F95" = "no"; then
	wo_cv_fc_impure="yes"
	else
	wo_cv_fc_impure="no"
	fi])
	AM_CONDITIONAL([FC_IMPURE],
	[test "$wo_cv_fc_impure" = "yes"])
	])
	### end WO_FC_OMEGA_IMPURE

	### Check for quadruple precision support (real and complex!)
	AC_DEFUN([WO_FC_CHECK_QUADRUPLE],
	[dnl
	AC_CACHE_CHECK([whether $FC permits quadruple real and complex],
	[wo_cv_fc_quadruple],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	AC_LANG([Fortran])
	AC_COMPILE_IFELSE([dnl
	program conftest
	integer, parameter :: d=selected_real_kind(precision(1.)+1, range(1.)+1)
	integer, parameter :: q=selected_real_kind(precision(1._d)+1, range(1._d))
	real(kind=q) :: x
	complex(kind=q) :: z
	end program conftest
	],
	[wo_cv_fc_quadruple="yes"],
	[wo_cv_fc_quadruple="no"])
	])
	FC_SUPPORTS_QUADRUPLE="$wo_cv_fc_quadruple"
	AC_SUBST([FC_SUPPORTS_QUADRUPLE])
	])
	### end WO_FC_CHECK_QUADRUPLE

	### Check for C quadruple precision support (real and complex!)
	AC_DEFUN([WO_FC_CHECK_QUADRUPLE_C],
	[dnl
	AC_CACHE_CHECK([whether $FC permits quadruple-precision C types],
	[wo_cv_fc_quadruple_c],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	AC_LANG([Fortran])
	AC_COMPILE_IFELSE([dnl
	program conftest
	use iso_c_binding
	real(c_long_double) :: x
	complex(c_long_double_complex) :: z
	end program conftest
	],
	[wo_cv_fc_quadruple_c="yes"],
	[wo_cv_fc_quadruple_c="no"])
	])
	FC_SUPPORTS_QUADRUPLE_C="$wo_cv_fc_quadruple_c"
	AC_SUBST([FC_SUPPORTS_QUADRUPLE_C])
	])
	### end WO_FC_CHECK_QUADRUPLE_C


	### Enable/disable quadruple precision and set default precision
	AC_DEFUN([WO_FC_SET_PRECISION],
	[dnl
	AC_REQUIRE([WO_FC_CHECK_QUADRUPLE])
	AC_ARG_ENABLE([fc_quadruple],
	[AS_HELP_STRING([--enable-fc-quadruple],
	[use quadruple precision in Fortran code [[no]]])])
	if test "$enable_fc_quadruple" = "yes"; then
	FC_QUAD_OR_SINGLE="quadruple"
	else
	FC_QUAD_OR_SINGLE="single"
	fi
	AC_SUBST([FC_QUAD_OR_SINGLE])
	AC_CACHE_CHECK([the default numeric precision], [wo_cv_fc_precision],
	[dnl
	if test "$FC_SUPPORTS_QUADRUPLE" = "yes" \
	-a "$FC_SUPPORTS_QUADRUPLE_C" = "yes" \
	-a "$enable_fc_quadruple" = "yes"; then
	wo_cv_fc_precision="quadruple"
	wo_cv_fc_precision_c="c_long_double"
	else
	wo_cv_fc_precision="double"
	wo_cv_fc_precision_c="c_double"
	fi
	])
	FC_PRECISION="$wo_cv_fc_precision"
	FC_PRECISION_C="$wo_cv_fc_precision_c"
	AC_SUBST(FC_PRECISION)
	AC_SUBST(FC_PRECISION_C)
	AM_CONDITIONAL([FC_QUAD],
	[test "$FC_PRECISION" = "quadruple"])
	])
	### end WO_FC_SET_PRECISION

	### filename_case_conversion, define two variables LOWERCASE and
	### UPPERCASE for /bin/sh filters that convert strings to lower
	### and upper case, respectively
	AC_DEFUN([WO_FC_FILENAME_CASE_CONVERSION],
	[dnl
	AC_SUBST([LOWERCASE])
	AC_SUBST([UPPERCASE])
	AC_PATH_PROGS(TR,tr)
	AC_MSG_CHECKING([for case conversion])
	if test -n "$TR"; then
	LOWERCASE="$TR A-Z a-z"
	UPPERCASE="$TR a-z A-Z"
	WO_FC_FILENAME_CASE_CONVERSION_TEST
	fi
	if test -n "$UPPERCASE" && test -n "$LOWERCASE"; then
	AC_MSG_RESULT([$TR works])
	else
	LOWERCASE="$SED y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/"
	UPPERCASE="$SED y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/"
	WO_FC_FILENAME_CASE_CONVERSION_TEST
	if test -n "$UPPERCASE" && test -n "$LOWERCASE"; then
	AC_MSG_RESULT([$SED works])
	fi
	fi])
	### end WO_FC_FILE_CASE_CONVERSION
	dnl
	AC_DEFUN([WO_FC_FILENAME_CASE_CONVERSION_TEST],
	[dnl
	if test "`echo fOo \| $LOWERCASE`" != "foo"; then
	LOWERCASE=""
	fi
	if test "`echo fOo \| $UPPERCASE`" != "FOO"; then
	UPPERCASE=""
	fi])

	dnl
	dnl --------------------------------------------------------------------
	dnl
	dnl COMPILE_FC(VARIABLE, COMPILER, EXTENSION, MODULE,
	dnl VALUE_SUCCESS, VALUE_FAILURE, KEEP)
	dnl
	AC_DEFUN([COMPILE_FC],
	[cat >conftest.$3 <<__END__
	$4
	program conftest
	print *, 42
	end program conftest
	__END__
	$2 -o conftest conftest.$3 >/dev/null 2>&1
	./conftest >conftest.out 2>/dev/null
	if test 42 = "`$SED 's/ //g' conftest.out`"; then
	$1="$5"
	else
	$1="$6"
	fi
	if test -z "$7"; then
	rm -rf conftest* CONFTEST*
	fi])

	dnl
	dnl --------------------------------------------------------------------
	dnl
	dnl WO_FC_MODULE_FILE(NAME, EXTENSION, FORTRAN_COMPILER, SOURCE_EXTENSION)
	dnl
	AC_DEFUN([WO_FC_MODULE_FILE],
	[AC_SUBST([$1])
	AC_SUBST([$2])
	AC_MSG_CHECKING([for Fortran90 module file naming convention])
	COMPILE_FC([wo_result], [$3], [$4],
	[module module_NAME
	implicit none
	integer, parameter, public :: forty_two = 42
	end module module_NAME], [ok], [], [KEEP])
	if test -n "[$]wo_result"; then
	$1=unknown
	$2=unknown
	for name in module_name module_NAME MODULE_NAME conftest; do
	for ext in m mod M MOD d D; do
	if test -f "[$]name.[$]ext"; then
	$1="$name"
	$2="$ext"
	break 2
	fi
	done
	done
	if test X"[$]$1" = X"module_name"; then
	AC_MSG_RESULT([name: [$]$1, extension: .[$]$2 ])
	else
	AC_MSG_ERROR([unusual unsupported module file name convention: [$]$1.[$]$2])
	fi
	else
	$1=""
	$2=""
	AC_MSG_RESULT([compiler failed])
	AC_MSG_NOTICE([error: **************************************************************])
	AC_MSG_NOTICE([error: Fortran compiler cannot create proper module files. This])
	AC_MSG_NOTICE([error: might be caused by linking against a wrong gcc library.])
	AC_MSG_ERROR([**************************************************************])
	fi
	rm -rf conftest* CONFTEST* module_name* module_NAME* MODULE_NAME*])
	Index: trunk/src/vamp/m4/fortran.m4
	===================================================================
	--- trunk/src/vamp/m4/fortran.m4 (revision 4089)
	+++ trunk/src/vamp/m4/fortran.m4 (revision 4090)
	@@ -1,906 +1,924 @@
	dnl fortran.m4 -- Fortran compiler checks beyond Autoconf built-ins
	dnl

	dnl The standard Fortran compiler test is AC_PROG_FC.
	dnl At the end FC, FCFLAGS and FCFLAGS_f90 are set, if successful.

	### Determine vendor and version string.
	AC_DEFUN([WO_FC_GET_VENDOR_AND_VERSION],
	[dnl
	AC_REQUIRE([AC_PROG_FC])

	AC_CACHE_CHECK([the compiler ID string],
	[wo_cv_fc_id_string],
	[dnl
	$FC -V >conftest.log 2>&1
	$FC -version >>conftest.log 2>&1
	$FC --version >>conftest.log 2>&1

	wo_fc_grep_GFORTRAN=`$GREP -i 'GNU Fortran' conftest.log \| head -1`
	wo_fc_grep_G95=`$GREP -i 'g95' conftest.log \| $GREP -i 'gcc' \| head -1`
	wo_fc_grep_NAG=`$GREP 'NAG' conftest.log \| head -1`
	wo_fc_grep_Intel=`$GREP 'IFORT' conftest.log \| head -1`
	wo_fc_grep_Sun=`$GREP 'Sun' conftest.log \| head -1`
	wo_fc_grep_Lahey=`$GREP 'Lahey' conftest.log \| head -1`
	wo_fc_grep_PGF90=`$GREP 'pgf90' conftest.log \| head -1`
	wo_fc_grep_PGF95=`$GREP 'pgf95' conftest.log \| head -1`
	wo_fc_grep_PGHPF=`$GREP 'pghpf' conftest.log \| head -1`
	wo_fc_grep_default=`cat conftest.log \| head -1`

	if test -n "$wo_fc_grep_GFORTRAN"; then
	wo_cv_fc_id_string=$wo_fc_grep_GFORTRAN
	elif test -n "$wo_fc_grep_G95"; then
	wo_cv_fc_id_string=$wo_fc_grep_G95
	elif test -n "$wo_fc_grep_NAG"; then
	wo_cv_fc_id_string=$wo_fc_grep_NAG
	elif test -n "$wo_fc_grep_Intel"; then
	wo_cv_fc_id_string=$wo_fc_grep_Intel
	elif test -n "$wo_fc_grep_Sun"; then
	wo_cv_fc_id_string=$wo_fc_grep_Sun
	elif test -n "$wo_fc_grep_Lahey"; then
	wo_cv_fc_id_string=$wo_fc_grep_Lahey
	elif test -n "$wo_fc_grep_PGF90"; then
	wo_cv_fc_id_string=$wo_fc_grep_PGF90
	elif test -n "$wo_fc_grep_PGF95"; then
	wo_cv_fc_id_string=$wo_fc_grep_PGF95
	elif test -n "$wo_fc_grep_PGHPF"; then
	wo_cv_fc_id_string=$wo_fc_grep_PGHPF
	else
	wo_cv_fc_id_string=$wo_fc_grep_default
	fi

	rm -f conftest.log
	])
	FC_ID_STRING="$wo_cv_fc_id_string"
	AC_SUBST([FC_ID_STRING])

	AC_CACHE_CHECK([the compiler vendor],
	[wo_cv_fc_vendor],
	[dnl
	if test -n "$wo_fc_grep_GFORTRAN"; then
	wo_cv_fc_vendor="gfortran"
	elif test -n "$wo_fc_grep_G95"; then
	wo_cv_fc_vendor="g95"
	elif test -n "$wo_fc_grep_NAG"; then
	wo_cv_fc_vendor="NAG"
	elif test -n "$wo_fc_grep_Intel"; then
	wo_cv_fc_vendor="Intel"
	elif test -n "$wo_fc_grep_Sun"; then
	wo_cv_fc_vendor="Sun"
	elif test -n "$wo_fc_grep_Lahey"; then
	wo_cv_fc_vendor="Lahey"
	elif test -n "$wo_fc_grep_PGF90"; then
	wo_cv_fc_vendor="PGI"
	elif test -n "$wo_fc_grep_PGF95"; then
	wo_cv_fc_vendor="PGI"
	elif test -n "$wo_fc_grep_PGHPF"; then
	wo_cv_fc_vendor="PGI"
	else
	wo_cv_fc_vendor="unknown"
	fi
	])
	FC_VENDOR="$wo_cv_fc_vendor"


	AC_SUBST([FC_VENDOR])

	AM_CONDITIONAL([FC_IS_GFORTRAN],
	[test "$FC_VENDOR" = gfortran])

	AM_CONDITIONAL([FC_IS_NAG],
	[test "$FC_VENDOR" = NAG])

	AC_CACHE_CHECK([the compiler version],
	[wo_cv_fc_version],
	[dnl
	case $FC_VENDOR in
	gfortran)
	wo_cv_fc_version=[`echo $FC_ID_STRING \| $SED -e 's/.$[0-9][0-9]\.[0-9][0-9]\.[0-9][0-9]$.*/\1/'`]
	;;
	g95)
	wo_cv_fc_version=[`echo $FC_ID_STRING \| $SED -e 's/.g95 $[0-9][0-9]\.[0-9][0-9]$.$/\1/'`]
	;;
	NAG)
	wo_cv_fc_version=[`echo $FC_ID_STRING \| $SED -e 's/.* Release $[0-9][0-9]\.[0-9][0-9].*$$/\1/'`]
	;;
	Intel)
	wo_cv_fc_version=[`echo $FC_ID_STRING \| $SED -e 's/[a-zA-Z]//g;s/[0-9]\{8\}$//g'`]
	;;
	Sun)
	wo_cv_fc_version=[`echo $FC_ID_STRING \| $SED -e 's/.* Fortran 95 $[0-9][0-9]\.[0-9][0-9]$ .*/\1/'`]
	;;
	PGI)
	wo_cv_fc_version=[`echo $FC_ID_STRING \| $SED -e 's/[a-zA-Z]//g;s/^[0-9]\{2\}//g;s/32.\\|64.//g'`]
	;;
	*)
	wo_cv_fc_version="unknown"
	;;
	esac
	])
	FC_VERSION="$wo_cv_fc_version"
	AC_SUBST([FC_VERSION])

	### Catch insufficient object-orientation in gfortran 4.5.x
	if test "$wo_cv_fc_vendor" = "gfortran" -a "$wo_cv_fc_version" = "4.5.0" \|\| test "$wo_cv_fc_vendor" = "gfortran" -a "$wo_cv_fc_version" = "4.5.1" \|\| test "$wo_cv_fc_vendor" = "gfortran" -a "$wo_cv_fc_version" = "4.5.2" \|\| test "$wo_cv_fc_vendor" = "gfortran" -a "$wo_cv_fc_version" = "4.5.3" \|\| test "$wo_cv_fc_vendor" = "gfortran" -a "$wo_cv_fc_version" = "4.5.4"; then
	FC_IS_GFORTRAN_45="yes"
	else
	FC_IS_GFORTRAN_45="no"
	fi
	AC_SUBST([FC_IS_GFORTRAN_45])

	+### Catch buggy object-orientation in gfortran 4.6.0,1,2
	+if test "$wo_cv_fc_vendor" = "gfortran" -a "$wo_cv_fc_version" = "4.6.0" \|\| test "$wo_cv_fc_vendor" = "gfortran" -a "$wo_cv_fc_version" = "4.6.1" \|\| test "$wo_cv_fc_vendor" = "gfortran" -a "$wo_cv_fc_version" = "4.6.2"; then
	+FC_IS_GFORTRAN_46012="yes"
	+ else
	+FC_IS_GFORTRAN_46012="no"
	+fi
	+AC_SUBST([FC_IS_GFORTRAN_46012])
	+
	AC_CACHE_CHECK([the major version],
	[wo_cv_fc_major_version],
	[wo_cv_fc_major_version=[`echo $wo_cv_fc_version \| $SED -e 's/$[0-9][0-9]$\../\1/'`]
	])
	FC_MAJOR_VERSION="$wo_cv_fc_major_version"
	AC_SUBST([FC_MAJOR_VERSION])
	])
	### end WO_FC_GET_VENDOR_AND_VERSION

	AC_DEFUN([WO_FC_VETO_GFORTRAN_45],
	[dnl
	if test "$FC_IS_GFORTRAN_45" = "yes"; then
	AC_MSG_NOTICE([error: ***************************************************************])
	AC_MSG_NOTICE([error: gfortran 4.5.x object orientation support insufficient.])
	AC_MSG_ERROR([***************************************************************])
	fi
	])

	+AC_DEFUN([WO_FC_VETO_GFORTRAN_46012],
	+[dnl
	+if test "$FC_IS_GFORTRAN_46012" = "yes"; then
	+AC_MSG_NOTICE([error: ***************************************************************])
	+AC_MSG_NOTICE([error: gfortran 4.6.{0,1,2} are too buggy, we don't support them. ])
	+AC_MSG_NOTICE([error: Please upgrade to at least 4.6.3 or a newer release series. ])
	+AC_MSG_ERROR([***************************************************************])
	+fi
	+])
	+
	### Determine Fortran flags and file extensions
	AC_DEFUN([WO_FC_PARAMETERS],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	AC_REQUIRE([_LT_COMPILER_PIC])
	AC_LANG([Fortran])

	AC_MSG_CHECKING([for $FC flags])
	AC_MSG_RESULT([$FCFLAGS])

	AC_MSG_CHECKING([for $FC flag to produce position-independent code])
	AC_MSG_RESULT([$lt_prog_compiler_pic_FC])
	FCFLAGS_PIC=$lt_prog_compiler_pic_FC
	AC_SUBST([FCFLAGS_PIC])

	AC_MSG_CHECKING([for $FC source extension])
	AC_MSG_RESULT([$ac_fc_srcext])
	FC_SRC_EXT=$ac_fc_srcext
	AC_SUBST([FC_SRC_EXT])

	AC_MSG_CHECKING([for object file extension])
	AC_MSG_RESULT([$ac_objext])
	OBJ_EXT=$ac_objext
	AC_SUBST([OBJ_EXT])
	])
	### end WO_FC_PARAMETERS


	### Determine runtime libraries
	### The standard check is insufficient for some compilers
	AC_DEFUN([WO_FC_LIBRARY_LDFLAGS],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	case "$FC" in
	nagfor*)
	WO_NAGFOR_LIBRARY_LDFLAGS()
	;;
	*)
	AC_FC_LIBRARY_LDFLAGS
	;;
	esac
	])

	### Check the NAG Fortran compiler
	### Use the '-dryrun' feature and extract the libraries from the link command
	### Note that the linker is gcc, not ld
	AC_DEFUN([WO_NAGFOR_LIBRARY_LDFLAGS],
	[dnl
	AC_CACHE_CHECK([Fortran libraries of $FC],
	[wo_cv_fc_libs],
	[dnl
	if test -z "$FCLIBS"; then
	AC_LANG([Fortran])
	AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
	wo_save_fcflags=$FCFLAGS
	FCFLAGS="-dryrun"
	eval "set x $ac_link"
	echo "set x $ac_link"
	shift
	_AS_ECHO_LOG([$[*]])
	wo_nagfor_output=`eval $ac_link AS_MESSAGE_LOG_FD>&1 2>&1`
	echo "$wo_nagfor_output" >&AS_MESSAGE_LOG_FD
	FCFLAGS=$wo_save_fcflags
	wo_cv_fc_libs=`echo $wo_nagfor_output \| $SED -e 's/.* -o conftest $.*$$/\1/' \| $SED -e "s/conftest.$ac_objext //"`
	else
	wo_cv_fc_libs=$FCLIBS
	fi
	])
	FCLIBS=$wo_cv_fc_libs
	AC_SUBST([FCLIBS])
	])

	### Check for basic F95 features
	AC_DEFUN([WO_FC_CHECK_F95],
	[dnl
	AC_CACHE_CHECK([whether $FC supports Fortran 95 features],
	[wo_cv_fc_supports_f95],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	AC_LANG([Fortran])
	AC_COMPILE_IFELSE([dnl
	program conftest
	integer, dimension(2) :: ii
	integer :: i
	type :: foo
	integer, pointer :: bar => null ()
	end type foo
	forall (i = 1:2) ii(i) = i
	contains
	elemental function f(x)
	real, intent(in) :: x
	real :: f
	f = x
	end function f
	pure function g (x) result (gx)
	real, intent(in) :: x
	real :: gx
	gx = x
	end function g
	end program conftest
	],
	[wo_cv_fc_supports_f95="yes"],
	[wo_cv_fc_supports_f95="no"])
	])
	FC_SUPPORTS_F95="$wo_cv_fc_supports_f95"
	AC_SUBST([FC_SUPPORTS_F95])
	if test "$FC_SUPPORTS_F95" = "no"; then
	AC_MSG_NOTICE([error: ******************************************************************])
	AC_MSG_NOTICE([error: Fortran compiler is not a genuine F95 compiler, configure aborted.])
	AC_MSG_ERROR([******************************************************************])
	fi])
	### end WO_FC_CHECK_F95

	### Check for the TR15581 extensions (allocatable subobjects)
	AC_DEFUN([WO_FC_CHECK_TR15581],
	[AC_CACHE_CHECK([whether $FC supports allocatable subobjects],
	[wo_cv_fc_allocatable],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	AC_LANG([Fortran])
	AC_COMPILE_IFELSE([dnl
	program conftest
	type :: foo
	integer, dimension(:), allocatable :: bar
	end type foo
	end program conftest
	],
	[wo_cv_fc_allocatable="yes"],
	[wo_cv_fc_allocatable="no"])
	])
	FC_SUPPORTS_ALLOCATABLE="$wo_cv_fc_allocatable"
	AC_SUBST([FC_SUPPORTS_ALLOCATABLE])
	if test "$FC_SUPPORTS_ALLOCATABLE" = "no"; then
	AC_MSG_NOTICE([error: ****************************************************************************])
	AC_MSG_NOTICE([error: Fortran compiler does not support allocatable structures, configure aborted.])
	AC_MSG_ERROR([****************************************************************************])
	fi])
	### end WO_FC_CHECK_TR15581


	### Check for allocatable scalars
	AC_DEFUN([WO_FC_CHECK_ALLOCATABLE_SCALARS],
	[AC_CACHE_CHECK([whether $FC supports allocatable scalars],
	[wo_cv_fc_allocatable_scalars],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	AC_LANG([Fortran])
	AC_COMPILE_IFELSE([dnl
	program conftest
	type :: foo
	integer, allocatable :: bar
	end type foo
	end program conftest
	],
	[wo_cv_fc_allocatable_scalars="yes"],
	[wo_cv_fc_allocatable_scalars="no"])
	])
	FC_SUPPORTS_ALLOCATABLE_SCALARS="$wo_cv_fc_allocatable"
	AC_SUBST([FC_SUPPORTS_ALLOCATABLE_SCALARS])
	])
	### end WO_FC_CHECK_ALLOCATABLE_SCALARS


	### Check for the C bindings extensions of Fortran 2003
	AC_DEFUN([WO_FC_CHECK_C_BINDING],
	[AC_CACHE_CHECK([whether $FC supports ISO C binding and standard numeric types],
	[wo_cv_fc_c_binding],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	AC_LANG([Fortran])
	AC_COMPILE_IFELSE([dnl
	program conftest
	use iso_c_binding
	type, bind(c) :: t
	integer(c_int) :: i
	real(c_float) :: x1
	real(c_double) :: x2
	complex(c_float_complex) :: z1
	complex(c_double_complex) :: z2
	end type t
	end program conftest
	],
	[wo_cv_fc_c_binding="yes"],
	[wo_cv_fc_c_binding="no"])
	])
	FC_SUPPORTS_C_BINDING="$wo_cv_fc_c_binding"
	AC_SUBST([FC_SUPPORTS_C_BINDING])
	if test "$FC_SUPPORTS_C_BINDING" = "no"; then
	AC_MSG_NOTICE([error: *******************************************************************])
	AC_MSG_NOTICE([error: Fortran compiler does not support ISO C binding, configure aborted.])
	AC_MSG_ERROR([********************************************************************])
	fi
	])
	### end WO_FC_CHECK_C_BINDING


	### Check for procedure pointers
	AC_DEFUN([WO_FC_CHECK_PROCEDURE_POINTERS],
	[AC_CACHE_CHECK([whether $FC supports procedure pointers (F2003)],
	[wo_cv_prog_f03_procedure_pointers],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	AC_LANG([Fortran])
	AC_COMPILE_IFELSE([dnl
	program conftest
	type :: foo
	procedure (proc_template), nopass, pointer :: proc => null ()
	end type foo
	abstract interface
	subroutine proc_template ()
	end subroutine proc_template
	end interface
	end program conftest
	],
	[wo_cv_prog_f03_procedure_pointers="yes"],
	[wo_cv_prog_f03_procedure_pointers="no"])
	])
	FC_SUPPORTS_PROCEDURE_POINTERS="$wo_cv_prog_f03_procedure_pointers"
	AC_SUBST([FC_SUPPORTS_PROCEDURE_POINTERS])
	if test "$FC_SUPPORTS_PROCEDURE_POINTERS" = "no"; then
	AC_MSG_NOTICE([error: ***************************************************************************])
	AC_MSG_NOTICE([error: Fortran compiler does not understand procedure pointers, configure aborted.])
	AC_MSG_ERROR([***************************************************************************])
	fi])
	### end WO_FC_CHECK_PROCEDURE_POINTERS


	### Check for the OO extensions of Fortran 2003
	AC_DEFUN([WO_FC_CHECK_OO_FEATURES],
	[AC_CACHE_CHECK([whether $FC supports OO features (F2003)],
	[wo_cv_prog_f03_oo_features],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	AC_LANG([Fortran])
	AC_COMPILE_IFELSE([dnl
	module conftest
	type, abstract :: foo
	contains
	procedure (proc_template), deferred :: proc
	end type foo
	type, extends (foo) :: foobar
	contains
	procedure :: proc
	end type foobar
	abstract interface
	subroutine proc_template (f)
	import foo
	class(foo), intent(inout) :: f
	end subroutine proc_template
	end interface
	contains
	subroutine proc (f)
	class(foobar), intent(inout) :: f
	end subroutine proc
	end module conftest
	program main
	use conftest
	end program main
	],
	[wo_cv_prog_f03_oo_features="yes"],
	[wo_cv_prog_f03_oo_features="no"])
	])
	FC_SUPPORTS_OO_FEATURES="$wo_cv_prog_f03_oo_features"
	AC_SUBST([FC_SUPPORTS_OO_FEATURES])
	])
	### end WO_FC_CHECK_OO_FEATURES


	### Check for the command line interface of Fortran 2003
	### We actually have to link in order to check availability
	AC_DEFUN([WO_FC_CHECK_CMDLINE],
	[AC_CACHE_CHECK([whether $FC interfaces the command line (F2003)],
	[wo_cv_fc_cmdline],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	AC_LANG([Fortran])
	AC_LINK_IFELSE([dnl
	program conftest
	call get_command_argument (command_argument_count ())
	end program conftest
	],
	[wo_cv_fc_cmdline="yes"],
	[wo_cv_fc_cmdline="no"])
	])
	FC_SUPPORTS_CMDLINE="$wo_cv_fc_cmdline"
	AC_SUBST([FC_SUPPORTS_CMDLINE])
	if test "$FC_SUPPORTS_CMDLINE" = "no"; then
	AC_MSG_NOTICE([error: ******************************************************************])
	AC_MSG_NOTICE([error: Fortran compiler does not support get_command_argument; configure aborted.])
	AC_MSG_ERROR([******************************************************************])
	fi
	])
	### end WO_FC_CHECK_CMDLINE

	### Check whether we can access environment variables (2003 standard)
	### We actually have to link in order to check availability
	AC_DEFUN([WO_FC_CHECK_ENVVAR],
	[AC_CACHE_CHECK([whether $FC provides access to environment variables (F2003)],
	[wo_cv_fc_envvar],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	AC_LANG([Fortran])
	AC_LINK_IFELSE([dnl
	program conftest
	character(len=256) :: home
	call get_environment_variable ("HOME", home)
	end program conftest
	],
	[wo_cv_fc_envvar="yes"],
	[wo_cv_fc_envvar="no"])
	])
	FC_SUPPORTS_ENVVAR="$wo_cv_fc_envvar"
	AC_SUBST([FC_SUPPORTS_ENVVAR])
	if test "$FC_SUPPORTS_ENVVAR" = "no"; then
	AC_MSG_NOTICE([error: ***************************************************************************])
	AC_MSG_NOTICE([error: Fortran compiler does not support get_environment_variable; configure aborted.])
	AC_MSG_ERROR([***************************************************************************])
	fi])
	### end WO_FC_CHECK_ENVVAR

	### Check whether the flush statement is supported
	AC_DEFUN([WO_FC_CHECK_FLUSH],
	[AC_CACHE_CHECK([whether $FC supports the flush statement (F2003)],
	[wo_cv_fc_flush],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	AC_LANG([Fortran])
	AC_COMPILE_IFELSE([dnl
	program conftest
	implicit none
	integer, parameter :: u=50
	open (u, action="readwrite", status="scratch")
	write (u, *) "test"
	flush (u)
	close (u)
	end program conftest
	],
	[wo_cv_fc_flush="yes"],
	[wo_cv_fc_flush="no"])
	])
	FC_SUPPORTS_FLUSH="$wo_cv_fc_flush"
	AC_SUBST([FC_SUPPORTS_FLUSH])
	if test "$FC_SUPPORTS_FLUSH" = "no"; then
	AC_MSG_NOTICE([error: ***************************************************************************])
	AC_MSG_NOTICE([error: Fortran compiler does not support the flush statement; configure aborted.])
	AC_MSG_ERROR([***************************************************************************])
	fi])
	### end WO_FC_CHECK_FLUSH

	### Check for iso_fortran_env
	AC_DEFUN([WO_FC_CHECK_ISO_FORTRAN_ENV],
	[AC_ARG_ENABLE([iso_fortran_env],
	[AC_HELP_STRING([--disable-iso_fortran_env],
	[disable use of iso_fortran_env, even if the compiler supports it]
	)],
	[], [enable_iso_fortran_env=yes]
	)
	if test "$enable_iso_fortran_env" = yes; then
	AC_CACHE_CHECK([whether $FC supports iso_fortran_env (F2003)],
	[wo_cv_fc_iso_fortran_env],
	AC_REQUIRE([AC_PROG_FC])
	AC_LANG([Fortran])
	[AC_LINK_IFELSE(
	[dnl
	program conftest
	use iso_fortran_env
	implicit none
	integer :: i
	i = input_unit
	i = output_unit
	i = error_unit
	i = iostat_end
	i = iostat_eor
	end program conftest
	], [wo_cv_fc_iso_fortran_env=yes], [wo_cv_fc_iso_fortran_env=no]
	)]
	)
	test "$wo_cv_fc_iso_fortran_env" = no && iso_fortran_env_stub=yes
	else
	AC_CHECKING([whether $FC supports iso_fortran_env (F2003)... disabled])
	iso_fortran_env_stub=yes
	fi
	AM_CONDITIONAL([ISO_FORTRAN_ENV_STUB], [test -n "$iso_fortran_env_stub"])
	]
	)

	### Check for wrapping of linker flags
	### (nagfor 'feature': must be wrapped twice)
	AC_DEFUN([WO_FC_CHECK_LDFLAGS_WRAPPING],
	[AC_CACHE_CHECK([for wrapping of linker flags via -Wl],
	[wo_cv_fc_ldflags_wrapping],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	AC_LANG([Fortran])
	ldflags_tmp=$LDFLAGS
	LDFLAGS=-Wl,-rpath,/usr/lib
	AC_LINK_IFELSE(AC_LANG_PROGRAM(),
	[wo_cv_fc_ldflags_wrapping="once"],
	[wo_cv_fc_ldflags_wrapping="unknown"])
	if test "$wo_cv_fc_ldflags_wrapping" = "unknown"; then
	LDFLAGS=-Wl,-Wl,,-rpath,,/usr/lib
	AC_LINK_IFELSE(AC_LANG_PROGRAM(),
	[wo_cv_fc_ldflags_wrapping="twice"])
	fi
	LDFLAGS=$ldflags_tmp
	])
	FC_LDFLAGS_WRAPPING="$wo_cv_fc_ldflags_wrapping"
	AC_SUBST([FC_LDFLAGS_WRAPPING])
	])
	### end WO_FC_CHECK_LDFLAGS_WRAPPING

	### Check for OpenMP support
	AC_DEFUN([WO_FC_CHECK_OPENMP],
	[AC_CACHE_CHECK([whether $FC supports OpenMP],
	[wo_cv_fc_openmp],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	AC_LANG([Fortran])
	case $FC_VENDOR in
	gfortran)
	wo_cv_fc_openmp="yes"
	wo_cv_fcflags_openmp="-fopenmp"
	wo_cv_fc_openmp_header="use omp_lib"
	;;
	NAG)
	wo_cv_fc_openmp="no"
	;;
	Intel)
	wo_cv_fc_openmp="yes"
	wo_cv_fcflags_openmp="-openmp"
	wo_cv_fc_openmp_header="use omp_lib"
	;;
	PGI)
	wo_cv_fc_openmp="yes"
	wo_cv_fcflags_openmp="-mp"
	wo_cv_fc_openmp_header=""
	;;
	*)
	wo_cv_fc_openmp="no"
	;;
	esac
	if test "$wo_cv_fc_openmp"="yes"; then
	fcflags_tmp=$FCFLAGS
	FCFLAGS="$wo_cv_fcflags_openmp $FCFLAGS"
	unset OMP_NUM_THREADS
	AC_RUN_IFELSE([dnl
	program conftest
	$wo_cv_fc_openmp_header
	open (11, file="conftest.out", action="write", status="replace")
	write (11, "(I0)") omp_get_max_threads ()
	close (11)
	end program conftest
	],
	[dnl
	wo_cv_fc_openmp="yes"
	wo_cv_fc_openmp_thread_limit=`cat conftest.out`],
	[wo_cv_fc_openmp="no"],
	[wo_cv_fc_openmp="maybe [cross-compiling]"])
	FCFLAGS=$fcflags_tmp
	fi
	])
	if test "$wo_cv_fc_openmp" = "yes"; then
	AC_CACHE_CHECK([the default number of threads used by OpenMP],
	[wo_cv_fc_openmp_thread_limit])
	fi
	FC_SUPPORTS_OPENMP="$wo_cv_fc_openmp"
	AC_SUBST([FC_SUPPORTS_OPENMP])
	])
	### end WO_FC_CHECK_OPENMP

	### Enable/disable OpenMP support
	AC_DEFUN([WO_FC_SET_OPENMP],
	[dnl
	AC_REQUIRE([WO_FC_CHECK_OPENMP])
	AC_ARG_ENABLE([fc_openmp],
	[AS_HELP_STRING([--enable-fc-openmp],
	[use OpenMP for the Fortran code [[no]]])])
	AC_CACHE_CHECK([whether OpenMP is activated], [wo_cv_fc_use_openmp],
	[dnl
	if test "$FC_SUPPORTS_OPENMP" = "yes" -a "$enable_fc_openmp" = "yes"; then
	wo_cv_fc_use_openmp="yes"
	else
	wo_cv_fc_use_openmp="no"
	fi])
	AM_CONDITIONAL([FC_USE_OPENMP],
	[test "$wo_cv_fc_use_openmp" = "yes"])
	AM_COND_IF([FC_USE_OPENMP],
	[FC_OPENMP_ON=""
	FC_OPENMP_OFF="!"
	FCFLAGS_OPENMP="$wo_cv_fcflags_openmp"
	FC_OPENMP_HEADER="$wo_cv_fc_openmp_header"
	FC_OPENMP_DEFAULT_MAX_THREADS="$wo_cv_fc_openmp_thread_limit"
	],
	[FC_OPENMP_ON="!"
	FC_OPENMP_OFF=""
	FC_OPENMP_DEFAULT_MAX_THREADS="1"
	])
	AC_SUBST([FC_OPENMP_ON])
	AC_SUBST([FC_OPENMP_OFF])
	AC_SUBST([FCFLAGS_OPENMP])
	AC_SUBST([FC_OPENMP_HEADER])
	AC_SUBST([FC_OPENMP_DEFAULT_MAX_THREADS])
	])
	### end WO_FC_SET_OPENMP

	### Check for profiling support
	AC_DEFUN([WO_FC_CHECK_PROFILING],
	[AC_CACHE_CHECK([whether $FC supports profiling via -pg],
	[wo_cv_fc_profiling],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	AC_LANG([Fortran])
	fcflags_tmp=$FCFLAGS
	FCFLAGS="-pg $FCFLAGS"
	rm -f gmon.out
	AC_RUN_IFELSE([dnl
	program conftest
	end program conftest
	],
	[dnl
	if test -f gmon.out; then
	wo_cv_fc_profiling="yes"
	else
	wo_cv_fc_profiling="no"
	fi],
	[wo_cv_fc_profiling="no"],
	[wo_cv_fc_profiling="maybe [cross-compiling]"])
	rm -f gmon.out
	FCFLAGS=$fcflags_tmp
	])
	FC_SUPPORTS_PROFILING="$wo_cv_fc_profiling"
	AC_SUBST([FC_SUPPORTS_PROFILING])
	])
	### end WO_FC_CHECK_PROFILING

	### Enable/disable profiling support
	AC_DEFUN([WO_FC_SET_PROFILING],
	[dnl
	AC_REQUIRE([WO_FC_CHECK_PROFILING])
	AC_ARG_ENABLE([fc_profiling],
	[AS_HELP_STRING([--enable-fc-profiling],
	[use profiling for the Fortran code [[no]]])])
	AC_CACHE_CHECK([whether profiling is activated], [wo_cv_fc_prof],
	[dnl
	if test "$FC_SUPPORTS_PROFILING" = "yes" -a "$enable_fc_profiling" = "yes"; then
	wo_cv_fc_prof="yes"
	FCFLAGS_PROFILING="-pg"
	else
	wo_cv_fc_prof="no"
	FCFLAGS_PROFILING=""
	fi])
	AC_SUBST(FCFLAGS_PROFILING)
	AM_CONDITIONAL([FC_USE_PROFILING],
	[test -n "$FCFLAGS_PROFILING"])
	])
	### end WO_FC_SET_PROFILING

	### Enable/disable impure Omega compilation
	AC_DEFUN([WO_FC_SET_OMEGA_IMPURE],
	[dnl
	AC_REQUIRE([WO_FC_CHECK_F95])
	AC_ARG_ENABLE([impure_omega],
	[AS_HELP_STRING([--enable-fc-impure],
	[compile Omega libraries impure [[no]]])])
	AC_CACHE_CHECK([the default setting for impure omegalib], [wo_cv_fc_impure],
	[dnl
	if test "$impure_omega" = "yes" -o "$FC_SUPPORTS_F95" = "no"; then
	wo_cv_fc_impure="yes"
	else
	wo_cv_fc_impure="no"
	fi])
	AM_CONDITIONAL([FC_IMPURE],
	[test "$wo_cv_fc_impure" = "yes"])
	])
	### end WO_FC_OMEGA_IMPURE

	### Check for quadruple precision support (real and complex!)
	AC_DEFUN([WO_FC_CHECK_QUADRUPLE],
	[dnl
	AC_CACHE_CHECK([whether $FC permits quadruple real and complex],
	[wo_cv_fc_quadruple],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	AC_LANG([Fortran])
	AC_COMPILE_IFELSE([dnl
	program conftest
	integer, parameter :: d=selected_real_kind(precision(1.)+1, range(1.)+1)
	integer, parameter :: q=selected_real_kind(precision(1._d)+1, range(1._d))
	real(kind=q) :: x
	complex(kind=q) :: z
	end program conftest
	],
	[wo_cv_fc_quadruple="yes"],
	[wo_cv_fc_quadruple="no"])
	])
	FC_SUPPORTS_QUADRUPLE="$wo_cv_fc_quadruple"
	AC_SUBST([FC_SUPPORTS_QUADRUPLE])
	])
	### end WO_FC_CHECK_QUADRUPLE

	### Check for C quadruple precision support (real and complex!)
	AC_DEFUN([WO_FC_CHECK_QUADRUPLE_C],
	[dnl
	AC_CACHE_CHECK([whether $FC permits quadruple-precision C types],
	[wo_cv_fc_quadruple_c],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	AC_LANG([Fortran])
	AC_COMPILE_IFELSE([dnl
	program conftest
	use iso_c_binding
	real(c_long_double) :: x
	complex(c_long_double_complex) :: z
	end program conftest
	],
	[wo_cv_fc_quadruple_c="yes"],
	[wo_cv_fc_quadruple_c="no"])
	])
	FC_SUPPORTS_QUADRUPLE_C="$wo_cv_fc_quadruple_c"
	AC_SUBST([FC_SUPPORTS_QUADRUPLE_C])
	])
	### end WO_FC_CHECK_QUADRUPLE_C


	### Enable/disable quadruple precision and set default precision
	AC_DEFUN([WO_FC_SET_PRECISION],
	[dnl
	AC_REQUIRE([WO_FC_CHECK_QUADRUPLE])
	AC_ARG_ENABLE([fc_quadruple],
	[AS_HELP_STRING([--enable-fc-quadruple],
	[use quadruple precision in Fortran code [[no]]])])
	if test "$enable_fc_quadruple" = "yes"; then
	FC_QUAD_OR_SINGLE="quadruple"
	else
	FC_QUAD_OR_SINGLE="single"
	fi
	AC_SUBST([FC_QUAD_OR_SINGLE])
	AC_CACHE_CHECK([the default numeric precision], [wo_cv_fc_precision],
	[dnl
	if test "$FC_SUPPORTS_QUADRUPLE" = "yes" \
	-a "$FC_SUPPORTS_QUADRUPLE_C" = "yes" \
	-a "$enable_fc_quadruple" = "yes"; then
	wo_cv_fc_precision="quadruple"
	wo_cv_fc_precision_c="c_long_double"
	else
	wo_cv_fc_precision="double"
	wo_cv_fc_precision_c="c_double"
	fi
	])
	FC_PRECISION="$wo_cv_fc_precision"
	FC_PRECISION_C="$wo_cv_fc_precision_c"
	AC_SUBST(FC_PRECISION)
	AC_SUBST(FC_PRECISION_C)
	AM_CONDITIONAL([FC_QUAD],
	[test "$FC_PRECISION" = "quadruple"])
	])
	### end WO_FC_SET_PRECISION

	### filename_case_conversion, define two variables LOWERCASE and
	### UPPERCASE for /bin/sh filters that convert strings to lower
	### and upper case, respectively
	AC_DEFUN([WO_FC_FILENAME_CASE_CONVERSION],
	[dnl
	AC_SUBST([LOWERCASE])
	AC_SUBST([UPPERCASE])
	AC_PATH_PROGS(TR,tr)
	AC_MSG_CHECKING([for case conversion])
	if test -n "$TR"; then
	LOWERCASE="$TR A-Z a-z"
	UPPERCASE="$TR a-z A-Z"
	WO_FC_FILENAME_CASE_CONVERSION_TEST
	fi
	if test -n "$UPPERCASE" && test -n "$LOWERCASE"; then
	AC_MSG_RESULT([$TR works])
	else
	LOWERCASE="$SED y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/"
	UPPERCASE="$SED y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/"
	WO_FC_FILENAME_CASE_CONVERSION_TEST
	if test -n "$UPPERCASE" && test -n "$LOWERCASE"; then
	AC_MSG_RESULT([$SED works])
	fi
	fi])
	### end WO_FC_FILE_CASE_CONVERSION
	dnl
	AC_DEFUN([WO_FC_FILENAME_CASE_CONVERSION_TEST],
	[dnl
	if test "`echo fOo \| $LOWERCASE`" != "foo"; then
	LOWERCASE=""
	fi
	if test "`echo fOo \| $UPPERCASE`" != "FOO"; then
	UPPERCASE=""
	fi])

	dnl
	dnl --------------------------------------------------------------------
	dnl
	dnl COMPILE_FC(VARIABLE, COMPILER, EXTENSION, MODULE,
	dnl VALUE_SUCCESS, VALUE_FAILURE, KEEP)
	dnl
	AC_DEFUN([COMPILE_FC],
	[cat >conftest.$3 <<__END__
	$4
	program conftest
	print *, 42
	end program conftest
	__END__
	$2 -o conftest conftest.$3 >/dev/null 2>&1
	./conftest >conftest.out 2>/dev/null
	if test 42 = "`$SED 's/ //g' conftest.out`"; then
	$1="$5"
	else
	$1="$6"
	fi
	if test -z "$7"; then
	rm -rf conftest* CONFTEST*
	fi])

	dnl
	dnl --------------------------------------------------------------------
	dnl
	dnl WO_FC_MODULE_FILE(NAME, EXTENSION, FORTRAN_COMPILER, SOURCE_EXTENSION)
	dnl
	AC_DEFUN([WO_FC_MODULE_FILE],
	[AC_SUBST([$1])
	AC_SUBST([$2])
	AC_MSG_CHECKING([for Fortran90 module file naming convention])
	COMPILE_FC([wo_result], [$3], [$4],
	[module module_NAME
	implicit none
	integer, parameter, public :: forty_two = 42
	end module module_NAME], [ok], [], [KEEP])
	if test -n "[$]wo_result"; then
	$1=unknown
	$2=unknown
	for name in module_name module_NAME MODULE_NAME conftest; do
	for ext in m mod M MOD d D; do
	if test -f "[$]name.[$]ext"; then
	$1="$name"
	$2="$ext"
	break 2
	fi
	done
	done
	if test X"[$]$1" = X"module_name"; then
	AC_MSG_RESULT([name: [$]$1, extension: .[$]$2 ])
	else
	AC_MSG_ERROR([unusual unsupported module file name convention: [$]$1.[$]$2])
	fi
	else
	$1=""
	$2=""
	AC_MSG_RESULT([compiler failed])
	AC_MSG_NOTICE([error: **************************************************************])
	AC_MSG_NOTICE([error: Fortran compiler cannot create proper module files. This])
	AC_MSG_NOTICE([error: might be caused by linking against a wrong gcc library.])
	AC_MSG_ERROR([**************************************************************])
	fi
	rm -rf conftest* CONFTEST* module_name* module_NAME* MODULE_NAME*])
	Index: trunk/src/circe1/m4/fortran.m4
	===================================================================
	--- trunk/src/circe1/m4/fortran.m4 (revision 4089)
	+++ trunk/src/circe1/m4/fortran.m4 (revision 4090)
	@@ -1,906 +1,924 @@
	dnl fortran.m4 -- Fortran compiler checks beyond Autoconf built-ins
	dnl

	dnl The standard Fortran compiler test is AC_PROG_FC.
	dnl At the end FC, FCFLAGS and FCFLAGS_f90 are set, if successful.

	### Determine vendor and version string.
	AC_DEFUN([WO_FC_GET_VENDOR_AND_VERSION],
	[dnl
	AC_REQUIRE([AC_PROG_FC])

	AC_CACHE_CHECK([the compiler ID string],
	[wo_cv_fc_id_string],
	[dnl
	$FC -V >conftest.log 2>&1
	$FC -version >>conftest.log 2>&1
	$FC --version >>conftest.log 2>&1

	wo_fc_grep_GFORTRAN=`$GREP -i 'GNU Fortran' conftest.log \| head -1`
	wo_fc_grep_G95=`$GREP -i 'g95' conftest.log \| $GREP -i 'gcc' \| head -1`
	wo_fc_grep_NAG=`$GREP 'NAG' conftest.log \| head -1`
	wo_fc_grep_Intel=`$GREP 'IFORT' conftest.log \| head -1`
	wo_fc_grep_Sun=`$GREP 'Sun' conftest.log \| head -1`
	wo_fc_grep_Lahey=`$GREP 'Lahey' conftest.log \| head -1`
	wo_fc_grep_PGF90=`$GREP 'pgf90' conftest.log \| head -1`
	wo_fc_grep_PGF95=`$GREP 'pgf95' conftest.log \| head -1`
	wo_fc_grep_PGHPF=`$GREP 'pghpf' conftest.log \| head -1`
	wo_fc_grep_default=`cat conftest.log \| head -1`

	if test -n "$wo_fc_grep_GFORTRAN"; then
	wo_cv_fc_id_string=$wo_fc_grep_GFORTRAN
	elif test -n "$wo_fc_grep_G95"; then
	wo_cv_fc_id_string=$wo_fc_grep_G95
	elif test -n "$wo_fc_grep_NAG"; then
	wo_cv_fc_id_string=$wo_fc_grep_NAG
	elif test -n "$wo_fc_grep_Intel"; then
	wo_cv_fc_id_string=$wo_fc_grep_Intel
	elif test -n "$wo_fc_grep_Sun"; then
	wo_cv_fc_id_string=$wo_fc_grep_Sun
	elif test -n "$wo_fc_grep_Lahey"; then
	wo_cv_fc_id_string=$wo_fc_grep_Lahey
	elif test -n "$wo_fc_grep_PGF90"; then
	wo_cv_fc_id_string=$wo_fc_grep_PGF90
	elif test -n "$wo_fc_grep_PGF95"; then
	wo_cv_fc_id_string=$wo_fc_grep_PGF95
	elif test -n "$wo_fc_grep_PGHPF"; then
	wo_cv_fc_id_string=$wo_fc_grep_PGHPF
	else
	wo_cv_fc_id_string=$wo_fc_grep_default
	fi

	rm -f conftest.log
	])
	FC_ID_STRING="$wo_cv_fc_id_string"
	AC_SUBST([FC_ID_STRING])

	AC_CACHE_CHECK([the compiler vendor],
	[wo_cv_fc_vendor],
	[dnl
	if test -n "$wo_fc_grep_GFORTRAN"; then
	wo_cv_fc_vendor="gfortran"
	elif test -n "$wo_fc_grep_G95"; then
	wo_cv_fc_vendor="g95"
	elif test -n "$wo_fc_grep_NAG"; then
	wo_cv_fc_vendor="NAG"
	elif test -n "$wo_fc_grep_Intel"; then
	wo_cv_fc_vendor="Intel"
	elif test -n "$wo_fc_grep_Sun"; then
	wo_cv_fc_vendor="Sun"
	elif test -n "$wo_fc_grep_Lahey"; then
	wo_cv_fc_vendor="Lahey"
	elif test -n "$wo_fc_grep_PGF90"; then
	wo_cv_fc_vendor="PGI"
	elif test -n "$wo_fc_grep_PGF95"; then
	wo_cv_fc_vendor="PGI"
	elif test -n "$wo_fc_grep_PGHPF"; then
	wo_cv_fc_vendor="PGI"
	else
	wo_cv_fc_vendor="unknown"
	fi
	])
	FC_VENDOR="$wo_cv_fc_vendor"


	AC_SUBST([FC_VENDOR])

	AM_CONDITIONAL([FC_IS_GFORTRAN],
	[test "$FC_VENDOR" = gfortran])

	AM_CONDITIONAL([FC_IS_NAG],
	[test "$FC_VENDOR" = NAG])

	AC_CACHE_CHECK([the compiler version],
	[wo_cv_fc_version],
	[dnl
	case $FC_VENDOR in
	gfortran)
	wo_cv_fc_version=[`echo $FC_ID_STRING \| $SED -e 's/.$[0-9][0-9]\.[0-9][0-9]\.[0-9][0-9]$.*/\1/'`]
	;;
	g95)
	wo_cv_fc_version=[`echo $FC_ID_STRING \| $SED -e 's/.g95 $[0-9][0-9]\.[0-9][0-9]$.$/\1/'`]
	;;
	NAG)
	wo_cv_fc_version=[`echo $FC_ID_STRING \| $SED -e 's/.* Release $[0-9][0-9]\.[0-9][0-9].*$$/\1/'`]
	;;
	Intel)
	wo_cv_fc_version=[`echo $FC_ID_STRING \| $SED -e 's/[a-zA-Z]//g;s/[0-9]\{8\}$//g'`]
	;;
	Sun)
	wo_cv_fc_version=[`echo $FC_ID_STRING \| $SED -e 's/.* Fortran 95 $[0-9][0-9]\.[0-9][0-9]$ .*/\1/'`]
	;;
	PGI)
	wo_cv_fc_version=[`echo $FC_ID_STRING \| $SED -e 's/[a-zA-Z]//g;s/^[0-9]\{2\}//g;s/32.\\|64.//g'`]
	;;
	*)
	wo_cv_fc_version="unknown"
	;;
	esac
	])
	FC_VERSION="$wo_cv_fc_version"
	AC_SUBST([FC_VERSION])

	### Catch insufficient object-orientation in gfortran 4.5.x
	if test "$wo_cv_fc_vendor" = "gfortran" -a "$wo_cv_fc_version" = "4.5.0" \|\| test "$wo_cv_fc_vendor" = "gfortran" -a "$wo_cv_fc_version" = "4.5.1" \|\| test "$wo_cv_fc_vendor" = "gfortran" -a "$wo_cv_fc_version" = "4.5.2" \|\| test "$wo_cv_fc_vendor" = "gfortran" -a "$wo_cv_fc_version" = "4.5.3" \|\| test "$wo_cv_fc_vendor" = "gfortran" -a "$wo_cv_fc_version" = "4.5.4"; then
	FC_IS_GFORTRAN_45="yes"
	else
	FC_IS_GFORTRAN_45="no"
	fi
	AC_SUBST([FC_IS_GFORTRAN_45])

	+### Catch buggy object-orientation in gfortran 4.6.0,1,2
	+if test "$wo_cv_fc_vendor" = "gfortran" -a "$wo_cv_fc_version" = "4.6.0" \|\| test "$wo_cv_fc_vendor" = "gfortran" -a "$wo_cv_fc_version" = "4.6.1" \|\| test "$wo_cv_fc_vendor" = "gfortran" -a "$wo_cv_fc_version" = "4.6.2"; then
	+FC_IS_GFORTRAN_46012="yes"
	+ else
	+FC_IS_GFORTRAN_46012="no"
	+fi
	+AC_SUBST([FC_IS_GFORTRAN_46012])
	+
	AC_CACHE_CHECK([the major version],
	[wo_cv_fc_major_version],
	[wo_cv_fc_major_version=[`echo $wo_cv_fc_version \| $SED -e 's/$[0-9][0-9]$\../\1/'`]
	])
	FC_MAJOR_VERSION="$wo_cv_fc_major_version"
	AC_SUBST([FC_MAJOR_VERSION])
	])
	### end WO_FC_GET_VENDOR_AND_VERSION

	AC_DEFUN([WO_FC_VETO_GFORTRAN_45],
	[dnl
	if test "$FC_IS_GFORTRAN_45" = "yes"; then
	AC_MSG_NOTICE([error: ***************************************************************])
	AC_MSG_NOTICE([error: gfortran 4.5.x object orientation support insufficient.])
	AC_MSG_ERROR([***************************************************************])
	fi
	])

	+AC_DEFUN([WO_FC_VETO_GFORTRAN_46012],
	+[dnl
	+if test "$FC_IS_GFORTRAN_46012" = "yes"; then
	+AC_MSG_NOTICE([error: ***************************************************************])
	+AC_MSG_NOTICE([error: gfortran 4.6.{0,1,2} are too buggy, we don't support them. ])
	+AC_MSG_NOTICE([error: Please upgrade to at least 4.6.3 or a newer release series. ])
	+AC_MSG_ERROR([***************************************************************])
	+fi
	+])
	+
	### Determine Fortran flags and file extensions
	AC_DEFUN([WO_FC_PARAMETERS],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	AC_REQUIRE([_LT_COMPILER_PIC])
	AC_LANG([Fortran])

	AC_MSG_CHECKING([for $FC flags])
	AC_MSG_RESULT([$FCFLAGS])

	AC_MSG_CHECKING([for $FC flag to produce position-independent code])
	AC_MSG_RESULT([$lt_prog_compiler_pic_FC])
	FCFLAGS_PIC=$lt_prog_compiler_pic_FC
	AC_SUBST([FCFLAGS_PIC])

	AC_MSG_CHECKING([for $FC source extension])
	AC_MSG_RESULT([$ac_fc_srcext])
	FC_SRC_EXT=$ac_fc_srcext
	AC_SUBST([FC_SRC_EXT])

	AC_MSG_CHECKING([for object file extension])
	AC_MSG_RESULT([$ac_objext])
	OBJ_EXT=$ac_objext
	AC_SUBST([OBJ_EXT])
	])
	### end WO_FC_PARAMETERS


	### Determine runtime libraries
	### The standard check is insufficient for some compilers
	AC_DEFUN([WO_FC_LIBRARY_LDFLAGS],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	case "$FC" in
	nagfor*)
	WO_NAGFOR_LIBRARY_LDFLAGS()
	;;
	*)
	AC_FC_LIBRARY_LDFLAGS
	;;
	esac
	])

	### Check the NAG Fortran compiler
	### Use the '-dryrun' feature and extract the libraries from the link command
	### Note that the linker is gcc, not ld
	AC_DEFUN([WO_NAGFOR_LIBRARY_LDFLAGS],
	[dnl
	AC_CACHE_CHECK([Fortran libraries of $FC],
	[wo_cv_fc_libs],
	[dnl
	if test -z "$FCLIBS"; then
	AC_LANG([Fortran])
	AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
	wo_save_fcflags=$FCFLAGS
	FCFLAGS="-dryrun"
	eval "set x $ac_link"
	echo "set x $ac_link"
	shift
	_AS_ECHO_LOG([$[*]])
	wo_nagfor_output=`eval $ac_link AS_MESSAGE_LOG_FD>&1 2>&1`
	echo "$wo_nagfor_output" >&AS_MESSAGE_LOG_FD
	FCFLAGS=$wo_save_fcflags
	wo_cv_fc_libs=`echo $wo_nagfor_output \| $SED -e 's/.* -o conftest $.*$$/\1/' \| $SED -e "s/conftest.$ac_objext //"`
	else
	wo_cv_fc_libs=$FCLIBS
	fi
	])
	FCLIBS=$wo_cv_fc_libs
	AC_SUBST([FCLIBS])
	])

	### Check for basic F95 features
	AC_DEFUN([WO_FC_CHECK_F95],
	[dnl
	AC_CACHE_CHECK([whether $FC supports Fortran 95 features],
	[wo_cv_fc_supports_f95],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	AC_LANG([Fortran])
	AC_COMPILE_IFELSE([dnl
	program conftest
	integer, dimension(2) :: ii
	integer :: i
	type :: foo
	integer, pointer :: bar => null ()
	end type foo
	forall (i = 1:2) ii(i) = i
	contains
	elemental function f(x)
	real, intent(in) :: x
	real :: f
	f = x
	end function f
	pure function g (x) result (gx)
	real, intent(in) :: x
	real :: gx
	gx = x
	end function g
	end program conftest
	],
	[wo_cv_fc_supports_f95="yes"],
	[wo_cv_fc_supports_f95="no"])
	])
	FC_SUPPORTS_F95="$wo_cv_fc_supports_f95"
	AC_SUBST([FC_SUPPORTS_F95])
	if test "$FC_SUPPORTS_F95" = "no"; then
	AC_MSG_NOTICE([error: ******************************************************************])
	AC_MSG_NOTICE([error: Fortran compiler is not a genuine F95 compiler, configure aborted.])
	AC_MSG_ERROR([******************************************************************])
	fi])
	### end WO_FC_CHECK_F95

	### Check for the TR15581 extensions (allocatable subobjects)
	AC_DEFUN([WO_FC_CHECK_TR15581],
	[AC_CACHE_CHECK([whether $FC supports allocatable subobjects],
	[wo_cv_fc_allocatable],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	AC_LANG([Fortran])
	AC_COMPILE_IFELSE([dnl
	program conftest
	type :: foo
	integer, dimension(:), allocatable :: bar
	end type foo
	end program conftest
	],
	[wo_cv_fc_allocatable="yes"],
	[wo_cv_fc_allocatable="no"])
	])
	FC_SUPPORTS_ALLOCATABLE="$wo_cv_fc_allocatable"
	AC_SUBST([FC_SUPPORTS_ALLOCATABLE])
	if test "$FC_SUPPORTS_ALLOCATABLE" = "no"; then
	AC_MSG_NOTICE([error: ****************************************************************************])
	AC_MSG_NOTICE([error: Fortran compiler does not support allocatable structures, configure aborted.])
	AC_MSG_ERROR([****************************************************************************])
	fi])
	### end WO_FC_CHECK_TR15581


	### Check for allocatable scalars
	AC_DEFUN([WO_FC_CHECK_ALLOCATABLE_SCALARS],
	[AC_CACHE_CHECK([whether $FC supports allocatable scalars],
	[wo_cv_fc_allocatable_scalars],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	AC_LANG([Fortran])
	AC_COMPILE_IFELSE([dnl
	program conftest
	type :: foo
	integer, allocatable :: bar
	end type foo
	end program conftest
	],
	[wo_cv_fc_allocatable_scalars="yes"],
	[wo_cv_fc_allocatable_scalars="no"])
	])
	FC_SUPPORTS_ALLOCATABLE_SCALARS="$wo_cv_fc_allocatable"
	AC_SUBST([FC_SUPPORTS_ALLOCATABLE_SCALARS])
	])
	### end WO_FC_CHECK_ALLOCATABLE_SCALARS


	### Check for the C bindings extensions of Fortran 2003
	AC_DEFUN([WO_FC_CHECK_C_BINDING],
	[AC_CACHE_CHECK([whether $FC supports ISO C binding and standard numeric types],
	[wo_cv_fc_c_binding],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	AC_LANG([Fortran])
	AC_COMPILE_IFELSE([dnl
	program conftest
	use iso_c_binding
	type, bind(c) :: t
	integer(c_int) :: i
	real(c_float) :: x1
	real(c_double) :: x2
	complex(c_float_complex) :: z1
	complex(c_double_complex) :: z2
	end type t
	end program conftest
	],
	[wo_cv_fc_c_binding="yes"],
	[wo_cv_fc_c_binding="no"])
	])
	FC_SUPPORTS_C_BINDING="$wo_cv_fc_c_binding"
	AC_SUBST([FC_SUPPORTS_C_BINDING])
	if test "$FC_SUPPORTS_C_BINDING" = "no"; then
	AC_MSG_NOTICE([error: *******************************************************************])
	AC_MSG_NOTICE([error: Fortran compiler does not support ISO C binding, configure aborted.])
	AC_MSG_ERROR([********************************************************************])
	fi
	])
	### end WO_FC_CHECK_C_BINDING


	### Check for procedure pointers
	AC_DEFUN([WO_FC_CHECK_PROCEDURE_POINTERS],
	[AC_CACHE_CHECK([whether $FC supports procedure pointers (F2003)],
	[wo_cv_prog_f03_procedure_pointers],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	AC_LANG([Fortran])
	AC_COMPILE_IFELSE([dnl
	program conftest
	type :: foo
	procedure (proc_template), nopass, pointer :: proc => null ()
	end type foo
	abstract interface
	subroutine proc_template ()
	end subroutine proc_template
	end interface
	end program conftest
	],
	[wo_cv_prog_f03_procedure_pointers="yes"],
	[wo_cv_prog_f03_procedure_pointers="no"])
	])
	FC_SUPPORTS_PROCEDURE_POINTERS="$wo_cv_prog_f03_procedure_pointers"
	AC_SUBST([FC_SUPPORTS_PROCEDURE_POINTERS])
	if test "$FC_SUPPORTS_PROCEDURE_POINTERS" = "no"; then
	AC_MSG_NOTICE([error: ***************************************************************************])
	AC_MSG_NOTICE([error: Fortran compiler does not understand procedure pointers, configure aborted.])
	AC_MSG_ERROR([***************************************************************************])
	fi])
	### end WO_FC_CHECK_PROCEDURE_POINTERS


	### Check for the OO extensions of Fortran 2003
	AC_DEFUN([WO_FC_CHECK_OO_FEATURES],
	[AC_CACHE_CHECK([whether $FC supports OO features (F2003)],
	[wo_cv_prog_f03_oo_features],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	AC_LANG([Fortran])
	AC_COMPILE_IFELSE([dnl
	module conftest
	type, abstract :: foo
	contains
	procedure (proc_template), deferred :: proc
	end type foo
	type, extends (foo) :: foobar
	contains
	procedure :: proc
	end type foobar
	abstract interface
	subroutine proc_template (f)
	import foo
	class(foo), intent(inout) :: f
	end subroutine proc_template
	end interface
	contains
	subroutine proc (f)
	class(foobar), intent(inout) :: f
	end subroutine proc
	end module conftest
	program main
	use conftest
	end program main
	],
	[wo_cv_prog_f03_oo_features="yes"],
	[wo_cv_prog_f03_oo_features="no"])
	])
	FC_SUPPORTS_OO_FEATURES="$wo_cv_prog_f03_oo_features"
	AC_SUBST([FC_SUPPORTS_OO_FEATURES])
	])
	### end WO_FC_CHECK_OO_FEATURES


	### Check for the command line interface of Fortran 2003
	### We actually have to link in order to check availability
	AC_DEFUN([WO_FC_CHECK_CMDLINE],
	[AC_CACHE_CHECK([whether $FC interfaces the command line (F2003)],
	[wo_cv_fc_cmdline],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	AC_LANG([Fortran])
	AC_LINK_IFELSE([dnl
	program conftest
	call get_command_argument (command_argument_count ())
	end program conftest
	],
	[wo_cv_fc_cmdline="yes"],
	[wo_cv_fc_cmdline="no"])
	])
	FC_SUPPORTS_CMDLINE="$wo_cv_fc_cmdline"
	AC_SUBST([FC_SUPPORTS_CMDLINE])
	if test "$FC_SUPPORTS_CMDLINE" = "no"; then
	AC_MSG_NOTICE([error: ******************************************************************])
	AC_MSG_NOTICE([error: Fortran compiler does not support get_command_argument; configure aborted.])
	AC_MSG_ERROR([******************************************************************])
	fi
	])
	### end WO_FC_CHECK_CMDLINE

	### Check whether we can access environment variables (2003 standard)
	### We actually have to link in order to check availability
	AC_DEFUN([WO_FC_CHECK_ENVVAR],
	[AC_CACHE_CHECK([whether $FC provides access to environment variables (F2003)],
	[wo_cv_fc_envvar],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	AC_LANG([Fortran])
	AC_LINK_IFELSE([dnl
	program conftest
	character(len=256) :: home
	call get_environment_variable ("HOME", home)
	end program conftest
	],
	[wo_cv_fc_envvar="yes"],
	[wo_cv_fc_envvar="no"])
	])
	FC_SUPPORTS_ENVVAR="$wo_cv_fc_envvar"
	AC_SUBST([FC_SUPPORTS_ENVVAR])
	if test "$FC_SUPPORTS_ENVVAR" = "no"; then
	AC_MSG_NOTICE([error: ***************************************************************************])
	AC_MSG_NOTICE([error: Fortran compiler does not support get_environment_variable; configure aborted.])
	AC_MSG_ERROR([***************************************************************************])
	fi])
	### end WO_FC_CHECK_ENVVAR

	### Check whether the flush statement is supported
	AC_DEFUN([WO_FC_CHECK_FLUSH],
	[AC_CACHE_CHECK([whether $FC supports the flush statement (F2003)],
	[wo_cv_fc_flush],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	AC_LANG([Fortran])
	AC_COMPILE_IFELSE([dnl
	program conftest
	implicit none
	integer, parameter :: u=50
	open (u, action="readwrite", status="scratch")
	write (u, *) "test"
	flush (u)
	close (u)
	end program conftest
	],
	[wo_cv_fc_flush="yes"],
	[wo_cv_fc_flush="no"])
	])
	FC_SUPPORTS_FLUSH="$wo_cv_fc_flush"
	AC_SUBST([FC_SUPPORTS_FLUSH])
	if test "$FC_SUPPORTS_FLUSH" = "no"; then
	AC_MSG_NOTICE([error: ***************************************************************************])
	AC_MSG_NOTICE([error: Fortran compiler does not support the flush statement; configure aborted.])
	AC_MSG_ERROR([***************************************************************************])
	fi])
	### end WO_FC_CHECK_FLUSH

	### Check for iso_fortran_env
	AC_DEFUN([WO_FC_CHECK_ISO_FORTRAN_ENV],
	[AC_ARG_ENABLE([iso_fortran_env],
	[AC_HELP_STRING([--disable-iso_fortran_env],
	[disable use of iso_fortran_env, even if the compiler supports it]
	)],
	[], [enable_iso_fortran_env=yes]
	)
	if test "$enable_iso_fortran_env" = yes; then
	AC_CACHE_CHECK([whether $FC supports iso_fortran_env (F2003)],
	[wo_cv_fc_iso_fortran_env],
	AC_REQUIRE([AC_PROG_FC])
	AC_LANG([Fortran])
	[AC_LINK_IFELSE(
	[dnl
	program conftest
	use iso_fortran_env
	implicit none
	integer :: i
	i = input_unit
	i = output_unit
	i = error_unit
	i = iostat_end
	i = iostat_eor
	end program conftest
	], [wo_cv_fc_iso_fortran_env=yes], [wo_cv_fc_iso_fortran_env=no]
	)]
	)
	test "$wo_cv_fc_iso_fortran_env" = no && iso_fortran_env_stub=yes
	else
	AC_CHECKING([whether $FC supports iso_fortran_env (F2003)... disabled])
	iso_fortran_env_stub=yes
	fi
	AM_CONDITIONAL([ISO_FORTRAN_ENV_STUB], [test -n "$iso_fortran_env_stub"])
	]
	)

	### Check for wrapping of linker flags
	### (nagfor 'feature': must be wrapped twice)
	AC_DEFUN([WO_FC_CHECK_LDFLAGS_WRAPPING],
	[AC_CACHE_CHECK([for wrapping of linker flags via -Wl],
	[wo_cv_fc_ldflags_wrapping],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	AC_LANG([Fortran])
	ldflags_tmp=$LDFLAGS
	LDFLAGS=-Wl,-rpath,/usr/lib
	AC_LINK_IFELSE(AC_LANG_PROGRAM(),
	[wo_cv_fc_ldflags_wrapping="once"],
	[wo_cv_fc_ldflags_wrapping="unknown"])
	if test "$wo_cv_fc_ldflags_wrapping" = "unknown"; then
	LDFLAGS=-Wl,-Wl,,-rpath,,/usr/lib
	AC_LINK_IFELSE(AC_LANG_PROGRAM(),
	[wo_cv_fc_ldflags_wrapping="twice"])
	fi
	LDFLAGS=$ldflags_tmp
	])
	FC_LDFLAGS_WRAPPING="$wo_cv_fc_ldflags_wrapping"
	AC_SUBST([FC_LDFLAGS_WRAPPING])
	])
	### end WO_FC_CHECK_LDFLAGS_WRAPPING

	### Check for OpenMP support
	AC_DEFUN([WO_FC_CHECK_OPENMP],
	[AC_CACHE_CHECK([whether $FC supports OpenMP],
	[wo_cv_fc_openmp],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	AC_LANG([Fortran])
	case $FC_VENDOR in
	gfortran)
	wo_cv_fc_openmp="yes"
	wo_cv_fcflags_openmp="-fopenmp"
	wo_cv_fc_openmp_header="use omp_lib"
	;;
	NAG)
	wo_cv_fc_openmp="no"
	;;
	Intel)
	wo_cv_fc_openmp="yes"
	wo_cv_fcflags_openmp="-openmp"
	wo_cv_fc_openmp_header="use omp_lib"
	;;
	PGI)
	wo_cv_fc_openmp="yes"
	wo_cv_fcflags_openmp="-mp"
	wo_cv_fc_openmp_header=""
	;;
	*)
	wo_cv_fc_openmp="no"
	;;
	esac
	if test "$wo_cv_fc_openmp"="yes"; then
	fcflags_tmp=$FCFLAGS
	FCFLAGS="$wo_cv_fcflags_openmp $FCFLAGS"
	unset OMP_NUM_THREADS
	AC_RUN_IFELSE([dnl
	program conftest
	$wo_cv_fc_openmp_header
	open (11, file="conftest.out", action="write", status="replace")
	write (11, "(I0)") omp_get_max_threads ()
	close (11)
	end program conftest
	],
	[dnl
	wo_cv_fc_openmp="yes"
	wo_cv_fc_openmp_thread_limit=`cat conftest.out`],
	[wo_cv_fc_openmp="no"],
	[wo_cv_fc_openmp="maybe [cross-compiling]"])
	FCFLAGS=$fcflags_tmp
	fi
	])
	if test "$wo_cv_fc_openmp" = "yes"; then
	AC_CACHE_CHECK([the default number of threads used by OpenMP],
	[wo_cv_fc_openmp_thread_limit])
	fi
	FC_SUPPORTS_OPENMP="$wo_cv_fc_openmp"
	AC_SUBST([FC_SUPPORTS_OPENMP])
	])
	### end WO_FC_CHECK_OPENMP

	### Enable/disable OpenMP support
	AC_DEFUN([WO_FC_SET_OPENMP],
	[dnl
	AC_REQUIRE([WO_FC_CHECK_OPENMP])
	AC_ARG_ENABLE([fc_openmp],
	[AS_HELP_STRING([--enable-fc-openmp],
	[use OpenMP for the Fortran code [[no]]])])
	AC_CACHE_CHECK([whether OpenMP is activated], [wo_cv_fc_use_openmp],
	[dnl
	if test "$FC_SUPPORTS_OPENMP" = "yes" -a "$enable_fc_openmp" = "yes"; then
	wo_cv_fc_use_openmp="yes"
	else
	wo_cv_fc_use_openmp="no"
	fi])
	AM_CONDITIONAL([FC_USE_OPENMP],
	[test "$wo_cv_fc_use_openmp" = "yes"])
	AM_COND_IF([FC_USE_OPENMP],
	[FC_OPENMP_ON=""
	FC_OPENMP_OFF="!"
	FCFLAGS_OPENMP="$wo_cv_fcflags_openmp"
	FC_OPENMP_HEADER="$wo_cv_fc_openmp_header"
	FC_OPENMP_DEFAULT_MAX_THREADS="$wo_cv_fc_openmp_thread_limit"
	],
	[FC_OPENMP_ON="!"
	FC_OPENMP_OFF=""
	FC_OPENMP_DEFAULT_MAX_THREADS="1"
	])
	AC_SUBST([FC_OPENMP_ON])
	AC_SUBST([FC_OPENMP_OFF])
	AC_SUBST([FCFLAGS_OPENMP])
	AC_SUBST([FC_OPENMP_HEADER])
	AC_SUBST([FC_OPENMP_DEFAULT_MAX_THREADS])
	])
	### end WO_FC_SET_OPENMP

	### Check for profiling support
	AC_DEFUN([WO_FC_CHECK_PROFILING],
	[AC_CACHE_CHECK([whether $FC supports profiling via -pg],
	[wo_cv_fc_profiling],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	AC_LANG([Fortran])
	fcflags_tmp=$FCFLAGS
	FCFLAGS="-pg $FCFLAGS"
	rm -f gmon.out
	AC_RUN_IFELSE([dnl
	program conftest
	end program conftest
	],
	[dnl
	if test -f gmon.out; then
	wo_cv_fc_profiling="yes"
	else
	wo_cv_fc_profiling="no"
	fi],
	[wo_cv_fc_profiling="no"],
	[wo_cv_fc_profiling="maybe [cross-compiling]"])
	rm -f gmon.out
	FCFLAGS=$fcflags_tmp
	])
	FC_SUPPORTS_PROFILING="$wo_cv_fc_profiling"
	AC_SUBST([FC_SUPPORTS_PROFILING])
	])
	### end WO_FC_CHECK_PROFILING

	### Enable/disable profiling support
	AC_DEFUN([WO_FC_SET_PROFILING],
	[dnl
	AC_REQUIRE([WO_FC_CHECK_PROFILING])
	AC_ARG_ENABLE([fc_profiling],
	[AS_HELP_STRING([--enable-fc-profiling],
	[use profiling for the Fortran code [[no]]])])
	AC_CACHE_CHECK([whether profiling is activated], [wo_cv_fc_prof],
	[dnl
	if test "$FC_SUPPORTS_PROFILING" = "yes" -a "$enable_fc_profiling" = "yes"; then
	wo_cv_fc_prof="yes"
	FCFLAGS_PROFILING="-pg"
	else
	wo_cv_fc_prof="no"
	FCFLAGS_PROFILING=""
	fi])
	AC_SUBST(FCFLAGS_PROFILING)
	AM_CONDITIONAL([FC_USE_PROFILING],
	[test -n "$FCFLAGS_PROFILING"])
	])
	### end WO_FC_SET_PROFILING

	### Enable/disable impure Omega compilation
	AC_DEFUN([WO_FC_SET_OMEGA_IMPURE],
	[dnl
	AC_REQUIRE([WO_FC_CHECK_F95])
	AC_ARG_ENABLE([impure_omega],
	[AS_HELP_STRING([--enable-fc-impure],
	[compile Omega libraries impure [[no]]])])
	AC_CACHE_CHECK([the default setting for impure omegalib], [wo_cv_fc_impure],
	[dnl
	if test "$impure_omega" = "yes" -o "$FC_SUPPORTS_F95" = "no"; then
	wo_cv_fc_impure="yes"
	else
	wo_cv_fc_impure="no"
	fi])
	AM_CONDITIONAL([FC_IMPURE],
	[test "$wo_cv_fc_impure" = "yes"])
	])
	### end WO_FC_OMEGA_IMPURE

	### Check for quadruple precision support (real and complex!)
	AC_DEFUN([WO_FC_CHECK_QUADRUPLE],
	[dnl
	AC_CACHE_CHECK([whether $FC permits quadruple real and complex],
	[wo_cv_fc_quadruple],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	AC_LANG([Fortran])
	AC_COMPILE_IFELSE([dnl
	program conftest
	integer, parameter :: d=selected_real_kind(precision(1.)+1, range(1.)+1)
	integer, parameter :: q=selected_real_kind(precision(1._d)+1, range(1._d))
	real(kind=q) :: x
	complex(kind=q) :: z
	end program conftest
	],
	[wo_cv_fc_quadruple="yes"],
	[wo_cv_fc_quadruple="no"])
	])
	FC_SUPPORTS_QUADRUPLE="$wo_cv_fc_quadruple"
	AC_SUBST([FC_SUPPORTS_QUADRUPLE])
	])
	### end WO_FC_CHECK_QUADRUPLE

	### Check for C quadruple precision support (real and complex!)
	AC_DEFUN([WO_FC_CHECK_QUADRUPLE_C],
	[dnl
	AC_CACHE_CHECK([whether $FC permits quadruple-precision C types],
	[wo_cv_fc_quadruple_c],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	AC_LANG([Fortran])
	AC_COMPILE_IFELSE([dnl
	program conftest
	use iso_c_binding
	real(c_long_double) :: x
	complex(c_long_double_complex) :: z
	end program conftest
	],
	[wo_cv_fc_quadruple_c="yes"],
	[wo_cv_fc_quadruple_c="no"])
	])
	FC_SUPPORTS_QUADRUPLE_C="$wo_cv_fc_quadruple_c"
	AC_SUBST([FC_SUPPORTS_QUADRUPLE_C])
	])
	### end WO_FC_CHECK_QUADRUPLE_C


	### Enable/disable quadruple precision and set default precision
	AC_DEFUN([WO_FC_SET_PRECISION],
	[dnl
	AC_REQUIRE([WO_FC_CHECK_QUADRUPLE])
	AC_ARG_ENABLE([fc_quadruple],
	[AS_HELP_STRING([--enable-fc-quadruple],
	[use quadruple precision in Fortran code [[no]]])])
	if test "$enable_fc_quadruple" = "yes"; then
	FC_QUAD_OR_SINGLE="quadruple"
	else
	FC_QUAD_OR_SINGLE="single"
	fi
	AC_SUBST([FC_QUAD_OR_SINGLE])
	AC_CACHE_CHECK([the default numeric precision], [wo_cv_fc_precision],
	[dnl
	if test "$FC_SUPPORTS_QUADRUPLE" = "yes" \
	-a "$FC_SUPPORTS_QUADRUPLE_C" = "yes" \
	-a "$enable_fc_quadruple" = "yes"; then
	wo_cv_fc_precision="quadruple"
	wo_cv_fc_precision_c="c_long_double"
	else
	wo_cv_fc_precision="double"
	wo_cv_fc_precision_c="c_double"
	fi
	])
	FC_PRECISION="$wo_cv_fc_precision"
	FC_PRECISION_C="$wo_cv_fc_precision_c"
	AC_SUBST(FC_PRECISION)
	AC_SUBST(FC_PRECISION_C)
	AM_CONDITIONAL([FC_QUAD],
	[test "$FC_PRECISION" = "quadruple"])
	])
	### end WO_FC_SET_PRECISION

	### filename_case_conversion, define two variables LOWERCASE and
	### UPPERCASE for /bin/sh filters that convert strings to lower
	### and upper case, respectively
	AC_DEFUN([WO_FC_FILENAME_CASE_CONVERSION],
	[dnl
	AC_SUBST([LOWERCASE])
	AC_SUBST([UPPERCASE])
	AC_PATH_PROGS(TR,tr)
	AC_MSG_CHECKING([for case conversion])
	if test -n "$TR"; then
	LOWERCASE="$TR A-Z a-z"
	UPPERCASE="$TR a-z A-Z"
	WO_FC_FILENAME_CASE_CONVERSION_TEST
	fi
	if test -n "$UPPERCASE" && test -n "$LOWERCASE"; then
	AC_MSG_RESULT([$TR works])
	else
	LOWERCASE="$SED y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/"
	UPPERCASE="$SED y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/"
	WO_FC_FILENAME_CASE_CONVERSION_TEST
	if test -n "$UPPERCASE" && test -n "$LOWERCASE"; then
	AC_MSG_RESULT([$SED works])
	fi
	fi])
	### end WO_FC_FILE_CASE_CONVERSION
	dnl
	AC_DEFUN([WO_FC_FILENAME_CASE_CONVERSION_TEST],
	[dnl
	if test "`echo fOo \| $LOWERCASE`" != "foo"; then
	LOWERCASE=""
	fi
	if test "`echo fOo \| $UPPERCASE`" != "FOO"; then
	UPPERCASE=""
	fi])

	dnl
	dnl --------------------------------------------------------------------
	dnl
	dnl COMPILE_FC(VARIABLE, COMPILER, EXTENSION, MODULE,
	dnl VALUE_SUCCESS, VALUE_FAILURE, KEEP)
	dnl
	AC_DEFUN([COMPILE_FC],
	[cat >conftest.$3 <<__END__
	$4
	program conftest
	print *, 42
	end program conftest
	__END__
	$2 -o conftest conftest.$3 >/dev/null 2>&1
	./conftest >conftest.out 2>/dev/null
	if test 42 = "`$SED 's/ //g' conftest.out`"; then
	$1="$5"
	else
	$1="$6"
	fi
	if test -z "$7"; then
	rm -rf conftest* CONFTEST*
	fi])

	dnl
	dnl --------------------------------------------------------------------
	dnl
	dnl WO_FC_MODULE_FILE(NAME, EXTENSION, FORTRAN_COMPILER, SOURCE_EXTENSION)
	dnl
	AC_DEFUN([WO_FC_MODULE_FILE],
	[AC_SUBST([$1])
	AC_SUBST([$2])
	AC_MSG_CHECKING([for Fortran90 module file naming convention])
	COMPILE_FC([wo_result], [$3], [$4],
	[module module_NAME
	implicit none
	integer, parameter, public :: forty_two = 42
	end module module_NAME], [ok], [], [KEEP])
	if test -n "[$]wo_result"; then
	$1=unknown
	$2=unknown
	for name in module_name module_NAME MODULE_NAME conftest; do
	for ext in m mod M MOD d D; do
	if test -f "[$]name.[$]ext"; then
	$1="$name"
	$2="$ext"
	break 2
	fi
	done
	done
	if test X"[$]$1" = X"module_name"; then
	AC_MSG_RESULT([name: [$]$1, extension: .[$]$2 ])
	else
	AC_MSG_ERROR([unusual unsupported module file name convention: [$]$1.[$]$2])
	fi
	else
	$1=""
	$2=""
	AC_MSG_RESULT([compiler failed])
	AC_MSG_NOTICE([error: **************************************************************])
	AC_MSG_NOTICE([error: Fortran compiler cannot create proper module files. This])
	AC_MSG_NOTICE([error: might be caused by linking against a wrong gcc library.])
	AC_MSG_ERROR([**************************************************************])
	fi
	rm -rf conftest* CONFTEST* module_name* module_NAME* MODULE_NAME*])
	Index: trunk/src/circe2/m4/fortran.m4
	===================================================================
	--- trunk/src/circe2/m4/fortran.m4 (revision 4089)
	+++ trunk/src/circe2/m4/fortran.m4 (revision 4090)
	@@ -1,906 +1,924 @@
	dnl fortran.m4 -- Fortran compiler checks beyond Autoconf built-ins
	dnl

	dnl The standard Fortran compiler test is AC_PROG_FC.
	dnl At the end FC, FCFLAGS and FCFLAGS_f90 are set, if successful.

	### Determine vendor and version string.
	AC_DEFUN([WO_FC_GET_VENDOR_AND_VERSION],
	[dnl
	AC_REQUIRE([AC_PROG_FC])

	AC_CACHE_CHECK([the compiler ID string],
	[wo_cv_fc_id_string],
	[dnl
	$FC -V >conftest.log 2>&1
	$FC -version >>conftest.log 2>&1
	$FC --version >>conftest.log 2>&1

	wo_fc_grep_GFORTRAN=`$GREP -i 'GNU Fortran' conftest.log \| head -1`
	wo_fc_grep_G95=`$GREP -i 'g95' conftest.log \| $GREP -i 'gcc' \| head -1`
	wo_fc_grep_NAG=`$GREP 'NAG' conftest.log \| head -1`
	wo_fc_grep_Intel=`$GREP 'IFORT' conftest.log \| head -1`
	wo_fc_grep_Sun=`$GREP 'Sun' conftest.log \| head -1`
	wo_fc_grep_Lahey=`$GREP 'Lahey' conftest.log \| head -1`
	wo_fc_grep_PGF90=`$GREP 'pgf90' conftest.log \| head -1`
	wo_fc_grep_PGF95=`$GREP 'pgf95' conftest.log \| head -1`
	wo_fc_grep_PGHPF=`$GREP 'pghpf' conftest.log \| head -1`
	wo_fc_grep_default=`cat conftest.log \| head -1`

	if test -n "$wo_fc_grep_GFORTRAN"; then
	wo_cv_fc_id_string=$wo_fc_grep_GFORTRAN
	elif test -n "$wo_fc_grep_G95"; then
	wo_cv_fc_id_string=$wo_fc_grep_G95
	elif test -n "$wo_fc_grep_NAG"; then
	wo_cv_fc_id_string=$wo_fc_grep_NAG
	elif test -n "$wo_fc_grep_Intel"; then
	wo_cv_fc_id_string=$wo_fc_grep_Intel
	elif test -n "$wo_fc_grep_Sun"; then
	wo_cv_fc_id_string=$wo_fc_grep_Sun
	elif test -n "$wo_fc_grep_Lahey"; then
	wo_cv_fc_id_string=$wo_fc_grep_Lahey
	elif test -n "$wo_fc_grep_PGF90"; then
	wo_cv_fc_id_string=$wo_fc_grep_PGF90
	elif test -n "$wo_fc_grep_PGF95"; then
	wo_cv_fc_id_string=$wo_fc_grep_PGF95
	elif test -n "$wo_fc_grep_PGHPF"; then
	wo_cv_fc_id_string=$wo_fc_grep_PGHPF
	else
	wo_cv_fc_id_string=$wo_fc_grep_default
	fi

	rm -f conftest.log
	])
	FC_ID_STRING="$wo_cv_fc_id_string"
	AC_SUBST([FC_ID_STRING])

	AC_CACHE_CHECK([the compiler vendor],
	[wo_cv_fc_vendor],
	[dnl
	if test -n "$wo_fc_grep_GFORTRAN"; then
	wo_cv_fc_vendor="gfortran"
	elif test -n "$wo_fc_grep_G95"; then
	wo_cv_fc_vendor="g95"
	elif test -n "$wo_fc_grep_NAG"; then
	wo_cv_fc_vendor="NAG"
	elif test -n "$wo_fc_grep_Intel"; then
	wo_cv_fc_vendor="Intel"
	elif test -n "$wo_fc_grep_Sun"; then
	wo_cv_fc_vendor="Sun"
	elif test -n "$wo_fc_grep_Lahey"; then
	wo_cv_fc_vendor="Lahey"
	elif test -n "$wo_fc_grep_PGF90"; then
	wo_cv_fc_vendor="PGI"
	elif test -n "$wo_fc_grep_PGF95"; then
	wo_cv_fc_vendor="PGI"
	elif test -n "$wo_fc_grep_PGHPF"; then
	wo_cv_fc_vendor="PGI"
	else
	wo_cv_fc_vendor="unknown"
	fi
	])
	FC_VENDOR="$wo_cv_fc_vendor"


	AC_SUBST([FC_VENDOR])

	AM_CONDITIONAL([FC_IS_GFORTRAN],
	[test "$FC_VENDOR" = gfortran])

	AM_CONDITIONAL([FC_IS_NAG],
	[test "$FC_VENDOR" = NAG])

	AC_CACHE_CHECK([the compiler version],
	[wo_cv_fc_version],
	[dnl
	case $FC_VENDOR in
	gfortran)
	wo_cv_fc_version=[`echo $FC_ID_STRING \| $SED -e 's/.$[0-9][0-9]\.[0-9][0-9]\.[0-9][0-9]$.*/\1/'`]
	;;
	g95)
	wo_cv_fc_version=[`echo $FC_ID_STRING \| $SED -e 's/.g95 $[0-9][0-9]\.[0-9][0-9]$.$/\1/'`]
	;;
	NAG)
	wo_cv_fc_version=[`echo $FC_ID_STRING \| $SED -e 's/.* Release $[0-9][0-9]\.[0-9][0-9].*$$/\1/'`]
	;;
	Intel)
	wo_cv_fc_version=[`echo $FC_ID_STRING \| $SED -e 's/[a-zA-Z]//g;s/[0-9]\{8\}$//g'`]
	;;
	Sun)
	wo_cv_fc_version=[`echo $FC_ID_STRING \| $SED -e 's/.* Fortran 95 $[0-9][0-9]\.[0-9][0-9]$ .*/\1/'`]
	;;
	PGI)
	wo_cv_fc_version=[`echo $FC_ID_STRING \| $SED -e 's/[a-zA-Z]//g;s/^[0-9]\{2\}//g;s/32.\\|64.//g'`]
	;;
	*)
	wo_cv_fc_version="unknown"
	;;
	esac
	])
	FC_VERSION="$wo_cv_fc_version"
	AC_SUBST([FC_VERSION])

	### Catch insufficient object-orientation in gfortran 4.5.x
	if test "$wo_cv_fc_vendor" = "gfortran" -a "$wo_cv_fc_version" = "4.5.0" \|\| test "$wo_cv_fc_vendor" = "gfortran" -a "$wo_cv_fc_version" = "4.5.1" \|\| test "$wo_cv_fc_vendor" = "gfortran" -a "$wo_cv_fc_version" = "4.5.2" \|\| test "$wo_cv_fc_vendor" = "gfortran" -a "$wo_cv_fc_version" = "4.5.3" \|\| test "$wo_cv_fc_vendor" = "gfortran" -a "$wo_cv_fc_version" = "4.5.4"; then
	FC_IS_GFORTRAN_45="yes"
	else
	FC_IS_GFORTRAN_45="no"
	fi
	AC_SUBST([FC_IS_GFORTRAN_45])

	+### Catch buggy object-orientation in gfortran 4.6.0,1,2
	+if test "$wo_cv_fc_vendor" = "gfortran" -a "$wo_cv_fc_version" = "4.6.0" \|\| test "$wo_cv_fc_vendor" = "gfortran" -a "$wo_cv_fc_version" = "4.6.1" \|\| test "$wo_cv_fc_vendor" = "gfortran" -a "$wo_cv_fc_version" = "4.6.2"; then
	+FC_IS_GFORTRAN_46012="yes"
	+ else
	+FC_IS_GFORTRAN_46012="no"
	+fi
	+AC_SUBST([FC_IS_GFORTRAN_46012])
	+
	AC_CACHE_CHECK([the major version],
	[wo_cv_fc_major_version],
	[wo_cv_fc_major_version=[`echo $wo_cv_fc_version \| $SED -e 's/$[0-9][0-9]$\../\1/'`]
	])
	FC_MAJOR_VERSION="$wo_cv_fc_major_version"
	AC_SUBST([FC_MAJOR_VERSION])
	])
	### end WO_FC_GET_VENDOR_AND_VERSION

	AC_DEFUN([WO_FC_VETO_GFORTRAN_45],
	[dnl
	if test "$FC_IS_GFORTRAN_45" = "yes"; then
	AC_MSG_NOTICE([error: ***************************************************************])
	AC_MSG_NOTICE([error: gfortran 4.5.x object orientation support insufficient.])
	AC_MSG_ERROR([***************************************************************])
	fi
	])

	+AC_DEFUN([WO_FC_VETO_GFORTRAN_46012],
	+[dnl
	+if test "$FC_IS_GFORTRAN_46012" = "yes"; then
	+AC_MSG_NOTICE([error: ***************************************************************])
	+AC_MSG_NOTICE([error: gfortran 4.6.{0,1,2} are too buggy, we don't support them. ])
	+AC_MSG_NOTICE([error: Please upgrade to at least 4.6.3 or a newer release series. ])
	+AC_MSG_ERROR([***************************************************************])
	+fi
	+])
	+
	### Determine Fortran flags and file extensions
	AC_DEFUN([WO_FC_PARAMETERS],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	AC_REQUIRE([_LT_COMPILER_PIC])
	AC_LANG([Fortran])

	AC_MSG_CHECKING([for $FC flags])
	AC_MSG_RESULT([$FCFLAGS])

	AC_MSG_CHECKING([for $FC flag to produce position-independent code])
	AC_MSG_RESULT([$lt_prog_compiler_pic_FC])
	FCFLAGS_PIC=$lt_prog_compiler_pic_FC
	AC_SUBST([FCFLAGS_PIC])

	AC_MSG_CHECKING([for $FC source extension])
	AC_MSG_RESULT([$ac_fc_srcext])
	FC_SRC_EXT=$ac_fc_srcext
	AC_SUBST([FC_SRC_EXT])

	AC_MSG_CHECKING([for object file extension])
	AC_MSG_RESULT([$ac_objext])
	OBJ_EXT=$ac_objext
	AC_SUBST([OBJ_EXT])
	])
	### end WO_FC_PARAMETERS


	### Determine runtime libraries
	### The standard check is insufficient for some compilers
	AC_DEFUN([WO_FC_LIBRARY_LDFLAGS],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	case "$FC" in
	nagfor*)
	WO_NAGFOR_LIBRARY_LDFLAGS()
	;;
	*)
	AC_FC_LIBRARY_LDFLAGS
	;;
	esac
	])

	### Check the NAG Fortran compiler
	### Use the '-dryrun' feature and extract the libraries from the link command
	### Note that the linker is gcc, not ld
	AC_DEFUN([WO_NAGFOR_LIBRARY_LDFLAGS],
	[dnl
	AC_CACHE_CHECK([Fortran libraries of $FC],
	[wo_cv_fc_libs],
	[dnl
	if test -z "$FCLIBS"; then
	AC_LANG([Fortran])
	AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
	wo_save_fcflags=$FCFLAGS
	FCFLAGS="-dryrun"
	eval "set x $ac_link"
	echo "set x $ac_link"
	shift
	_AS_ECHO_LOG([$[*]])
	wo_nagfor_output=`eval $ac_link AS_MESSAGE_LOG_FD>&1 2>&1`
	echo "$wo_nagfor_output" >&AS_MESSAGE_LOG_FD
	FCFLAGS=$wo_save_fcflags
	wo_cv_fc_libs=`echo $wo_nagfor_output \| $SED -e 's/.* -o conftest $.*$$/\1/' \| $SED -e "s/conftest.$ac_objext //"`
	else
	wo_cv_fc_libs=$FCLIBS
	fi
	])
	FCLIBS=$wo_cv_fc_libs
	AC_SUBST([FCLIBS])
	])

	### Check for basic F95 features
	AC_DEFUN([WO_FC_CHECK_F95],
	[dnl
	AC_CACHE_CHECK([whether $FC supports Fortran 95 features],
	[wo_cv_fc_supports_f95],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	AC_LANG([Fortran])
	AC_COMPILE_IFELSE([dnl
	program conftest
	integer, dimension(2) :: ii
	integer :: i
	type :: foo
	integer, pointer :: bar => null ()
	end type foo
	forall (i = 1:2) ii(i) = i
	contains
	elemental function f(x)
	real, intent(in) :: x
	real :: f
	f = x
	end function f
	pure function g (x) result (gx)
	real, intent(in) :: x
	real :: gx
	gx = x
	end function g
	end program conftest
	],
	[wo_cv_fc_supports_f95="yes"],
	[wo_cv_fc_supports_f95="no"])
	])
	FC_SUPPORTS_F95="$wo_cv_fc_supports_f95"
	AC_SUBST([FC_SUPPORTS_F95])
	if test "$FC_SUPPORTS_F95" = "no"; then
	AC_MSG_NOTICE([error: ******************************************************************])
	AC_MSG_NOTICE([error: Fortran compiler is not a genuine F95 compiler, configure aborted.])
	AC_MSG_ERROR([******************************************************************])
	fi])
	### end WO_FC_CHECK_F95

	### Check for the TR15581 extensions (allocatable subobjects)
	AC_DEFUN([WO_FC_CHECK_TR15581],
	[AC_CACHE_CHECK([whether $FC supports allocatable subobjects],
	[wo_cv_fc_allocatable],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	AC_LANG([Fortran])
	AC_COMPILE_IFELSE([dnl
	program conftest
	type :: foo
	integer, dimension(:), allocatable :: bar
	end type foo
	end program conftest
	],
	[wo_cv_fc_allocatable="yes"],
	[wo_cv_fc_allocatable="no"])
	])
	FC_SUPPORTS_ALLOCATABLE="$wo_cv_fc_allocatable"
	AC_SUBST([FC_SUPPORTS_ALLOCATABLE])
	if test "$FC_SUPPORTS_ALLOCATABLE" = "no"; then
	AC_MSG_NOTICE([error: ****************************************************************************])
	AC_MSG_NOTICE([error: Fortran compiler does not support allocatable structures, configure aborted.])
	AC_MSG_ERROR([****************************************************************************])
	fi])
	### end WO_FC_CHECK_TR15581


	### Check for allocatable scalars
	AC_DEFUN([WO_FC_CHECK_ALLOCATABLE_SCALARS],
	[AC_CACHE_CHECK([whether $FC supports allocatable scalars],
	[wo_cv_fc_allocatable_scalars],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	AC_LANG([Fortran])
	AC_COMPILE_IFELSE([dnl
	program conftest
	type :: foo
	integer, allocatable :: bar
	end type foo
	end program conftest
	],
	[wo_cv_fc_allocatable_scalars="yes"],
	[wo_cv_fc_allocatable_scalars="no"])
	])
	FC_SUPPORTS_ALLOCATABLE_SCALARS="$wo_cv_fc_allocatable"
	AC_SUBST([FC_SUPPORTS_ALLOCATABLE_SCALARS])
	])
	### end WO_FC_CHECK_ALLOCATABLE_SCALARS


	### Check for the C bindings extensions of Fortran 2003
	AC_DEFUN([WO_FC_CHECK_C_BINDING],
	[AC_CACHE_CHECK([whether $FC supports ISO C binding and standard numeric types],
	[wo_cv_fc_c_binding],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	AC_LANG([Fortran])
	AC_COMPILE_IFELSE([dnl
	program conftest
	use iso_c_binding
	type, bind(c) :: t
	integer(c_int) :: i
	real(c_float) :: x1
	real(c_double) :: x2
	complex(c_float_complex) :: z1
	complex(c_double_complex) :: z2
	end type t
	end program conftest
	],
	[wo_cv_fc_c_binding="yes"],
	[wo_cv_fc_c_binding="no"])
	])
	FC_SUPPORTS_C_BINDING="$wo_cv_fc_c_binding"
	AC_SUBST([FC_SUPPORTS_C_BINDING])
	if test "$FC_SUPPORTS_C_BINDING" = "no"; then
	AC_MSG_NOTICE([error: *******************************************************************])
	AC_MSG_NOTICE([error: Fortran compiler does not support ISO C binding, configure aborted.])
	AC_MSG_ERROR([********************************************************************])
	fi
	])
	### end WO_FC_CHECK_C_BINDING


	### Check for procedure pointers
	AC_DEFUN([WO_FC_CHECK_PROCEDURE_POINTERS],
	[AC_CACHE_CHECK([whether $FC supports procedure pointers (F2003)],
	[wo_cv_prog_f03_procedure_pointers],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	AC_LANG([Fortran])
	AC_COMPILE_IFELSE([dnl
	program conftest
	type :: foo
	procedure (proc_template), nopass, pointer :: proc => null ()
	end type foo
	abstract interface
	subroutine proc_template ()
	end subroutine proc_template
	end interface
	end program conftest
	],
	[wo_cv_prog_f03_procedure_pointers="yes"],
	[wo_cv_prog_f03_procedure_pointers="no"])
	])
	FC_SUPPORTS_PROCEDURE_POINTERS="$wo_cv_prog_f03_procedure_pointers"
	AC_SUBST([FC_SUPPORTS_PROCEDURE_POINTERS])
	if test "$FC_SUPPORTS_PROCEDURE_POINTERS" = "no"; then
	AC_MSG_NOTICE([error: ***************************************************************************])
	AC_MSG_NOTICE([error: Fortran compiler does not understand procedure pointers, configure aborted.])
	AC_MSG_ERROR([***************************************************************************])
	fi])
	### end WO_FC_CHECK_PROCEDURE_POINTERS


	### Check for the OO extensions of Fortran 2003
	AC_DEFUN([WO_FC_CHECK_OO_FEATURES],
	[AC_CACHE_CHECK([whether $FC supports OO features (F2003)],
	[wo_cv_prog_f03_oo_features],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	AC_LANG([Fortran])
	AC_COMPILE_IFELSE([dnl
	module conftest
	type, abstract :: foo
	contains
	procedure (proc_template), deferred :: proc
	end type foo
	type, extends (foo) :: foobar
	contains
	procedure :: proc
	end type foobar
	abstract interface
	subroutine proc_template (f)
	import foo
	class(foo), intent(inout) :: f
	end subroutine proc_template
	end interface
	contains
	subroutine proc (f)
	class(foobar), intent(inout) :: f
	end subroutine proc
	end module conftest
	program main
	use conftest
	end program main
	],
	[wo_cv_prog_f03_oo_features="yes"],
	[wo_cv_prog_f03_oo_features="no"])
	])
	FC_SUPPORTS_OO_FEATURES="$wo_cv_prog_f03_oo_features"
	AC_SUBST([FC_SUPPORTS_OO_FEATURES])
	])
	### end WO_FC_CHECK_OO_FEATURES


	### Check for the command line interface of Fortran 2003
	### We actually have to link in order to check availability
	AC_DEFUN([WO_FC_CHECK_CMDLINE],
	[AC_CACHE_CHECK([whether $FC interfaces the command line (F2003)],
	[wo_cv_fc_cmdline],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	AC_LANG([Fortran])
	AC_LINK_IFELSE([dnl
	program conftest
	call get_command_argument (command_argument_count ())
	end program conftest
	],
	[wo_cv_fc_cmdline="yes"],
	[wo_cv_fc_cmdline="no"])
	])
	FC_SUPPORTS_CMDLINE="$wo_cv_fc_cmdline"
	AC_SUBST([FC_SUPPORTS_CMDLINE])
	if test "$FC_SUPPORTS_CMDLINE" = "no"; then
	AC_MSG_NOTICE([error: ******************************************************************])
	AC_MSG_NOTICE([error: Fortran compiler does not support get_command_argument; configure aborted.])
	AC_MSG_ERROR([******************************************************************])
	fi
	])
	### end WO_FC_CHECK_CMDLINE

	### Check whether we can access environment variables (2003 standard)
	### We actually have to link in order to check availability
	AC_DEFUN([WO_FC_CHECK_ENVVAR],
	[AC_CACHE_CHECK([whether $FC provides access to environment variables (F2003)],
	[wo_cv_fc_envvar],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	AC_LANG([Fortran])
	AC_LINK_IFELSE([dnl
	program conftest
	character(len=256) :: home
	call get_environment_variable ("HOME", home)
	end program conftest
	],
	[wo_cv_fc_envvar="yes"],
	[wo_cv_fc_envvar="no"])
	])
	FC_SUPPORTS_ENVVAR="$wo_cv_fc_envvar"
	AC_SUBST([FC_SUPPORTS_ENVVAR])
	if test "$FC_SUPPORTS_ENVVAR" = "no"; then
	AC_MSG_NOTICE([error: ***************************************************************************])
	AC_MSG_NOTICE([error: Fortran compiler does not support get_environment_variable; configure aborted.])
	AC_MSG_ERROR([***************************************************************************])
	fi])
	### end WO_FC_CHECK_ENVVAR

	### Check whether the flush statement is supported
	AC_DEFUN([WO_FC_CHECK_FLUSH],
	[AC_CACHE_CHECK([whether $FC supports the flush statement (F2003)],
	[wo_cv_fc_flush],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	AC_LANG([Fortran])
	AC_COMPILE_IFELSE([dnl
	program conftest
	implicit none
	integer, parameter :: u=50
	open (u, action="readwrite", status="scratch")
	write (u, *) "test"
	flush (u)
	close (u)
	end program conftest
	],
	[wo_cv_fc_flush="yes"],
	[wo_cv_fc_flush="no"])
	])
	FC_SUPPORTS_FLUSH="$wo_cv_fc_flush"
	AC_SUBST([FC_SUPPORTS_FLUSH])
	if test "$FC_SUPPORTS_FLUSH" = "no"; then
	AC_MSG_NOTICE([error: ***************************************************************************])
	AC_MSG_NOTICE([error: Fortran compiler does not support the flush statement; configure aborted.])
	AC_MSG_ERROR([***************************************************************************])
	fi])
	### end WO_FC_CHECK_FLUSH

	### Check for iso_fortran_env
	AC_DEFUN([WO_FC_CHECK_ISO_FORTRAN_ENV],
	[AC_ARG_ENABLE([iso_fortran_env],
	[AC_HELP_STRING([--disable-iso_fortran_env],
	[disable use of iso_fortran_env, even if the compiler supports it]
	)],
	[], [enable_iso_fortran_env=yes]
	)
	if test "$enable_iso_fortran_env" = yes; then
	AC_CACHE_CHECK([whether $FC supports iso_fortran_env (F2003)],
	[wo_cv_fc_iso_fortran_env],
	AC_REQUIRE([AC_PROG_FC])
	AC_LANG([Fortran])
	[AC_LINK_IFELSE(
	[dnl
	program conftest
	use iso_fortran_env
	implicit none
	integer :: i
	i = input_unit
	i = output_unit
	i = error_unit
	i = iostat_end
	i = iostat_eor
	end program conftest
	], [wo_cv_fc_iso_fortran_env=yes], [wo_cv_fc_iso_fortran_env=no]
	)]
	)
	test "$wo_cv_fc_iso_fortran_env" = no && iso_fortran_env_stub=yes
	else
	AC_CHECKING([whether $FC supports iso_fortran_env (F2003)... disabled])
	iso_fortran_env_stub=yes
	fi
	AM_CONDITIONAL([ISO_FORTRAN_ENV_STUB], [test -n "$iso_fortran_env_stub"])
	]
	)

	### Check for wrapping of linker flags
	### (nagfor 'feature': must be wrapped twice)
	AC_DEFUN([WO_FC_CHECK_LDFLAGS_WRAPPING],
	[AC_CACHE_CHECK([for wrapping of linker flags via -Wl],
	[wo_cv_fc_ldflags_wrapping],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	AC_LANG([Fortran])
	ldflags_tmp=$LDFLAGS
	LDFLAGS=-Wl,-rpath,/usr/lib
	AC_LINK_IFELSE(AC_LANG_PROGRAM(),
	[wo_cv_fc_ldflags_wrapping="once"],
	[wo_cv_fc_ldflags_wrapping="unknown"])
	if test "$wo_cv_fc_ldflags_wrapping" = "unknown"; then
	LDFLAGS=-Wl,-Wl,,-rpath,,/usr/lib
	AC_LINK_IFELSE(AC_LANG_PROGRAM(),
	[wo_cv_fc_ldflags_wrapping="twice"])
	fi
	LDFLAGS=$ldflags_tmp
	])
	FC_LDFLAGS_WRAPPING="$wo_cv_fc_ldflags_wrapping"
	AC_SUBST([FC_LDFLAGS_WRAPPING])
	])
	### end WO_FC_CHECK_LDFLAGS_WRAPPING

	### Check for OpenMP support
	AC_DEFUN([WO_FC_CHECK_OPENMP],
	[AC_CACHE_CHECK([whether $FC supports OpenMP],
	[wo_cv_fc_openmp],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	AC_LANG([Fortran])
	case $FC_VENDOR in
	gfortran)
	wo_cv_fc_openmp="yes"
	wo_cv_fcflags_openmp="-fopenmp"
	wo_cv_fc_openmp_header="use omp_lib"
	;;
	NAG)
	wo_cv_fc_openmp="no"
	;;
	Intel)
	wo_cv_fc_openmp="yes"
	wo_cv_fcflags_openmp="-openmp"
	wo_cv_fc_openmp_header="use omp_lib"
	;;
	PGI)
	wo_cv_fc_openmp="yes"
	wo_cv_fcflags_openmp="-mp"
	wo_cv_fc_openmp_header=""
	;;
	*)
	wo_cv_fc_openmp="no"
	;;
	esac
	if test "$wo_cv_fc_openmp"="yes"; then
	fcflags_tmp=$FCFLAGS
	FCFLAGS="$wo_cv_fcflags_openmp $FCFLAGS"
	unset OMP_NUM_THREADS
	AC_RUN_IFELSE([dnl
	program conftest
	$wo_cv_fc_openmp_header
	open (11, file="conftest.out", action="write", status="replace")
	write (11, "(I0)") omp_get_max_threads ()
	close (11)
	end program conftest
	],
	[dnl
	wo_cv_fc_openmp="yes"
	wo_cv_fc_openmp_thread_limit=`cat conftest.out`],
	[wo_cv_fc_openmp="no"],
	[wo_cv_fc_openmp="maybe [cross-compiling]"])
	FCFLAGS=$fcflags_tmp
	fi
	])
	if test "$wo_cv_fc_openmp" = "yes"; then
	AC_CACHE_CHECK([the default number of threads used by OpenMP],
	[wo_cv_fc_openmp_thread_limit])
	fi
	FC_SUPPORTS_OPENMP="$wo_cv_fc_openmp"
	AC_SUBST([FC_SUPPORTS_OPENMP])
	])
	### end WO_FC_CHECK_OPENMP

	### Enable/disable OpenMP support
	AC_DEFUN([WO_FC_SET_OPENMP],
	[dnl
	AC_REQUIRE([WO_FC_CHECK_OPENMP])
	AC_ARG_ENABLE([fc_openmp],
	[AS_HELP_STRING([--enable-fc-openmp],
	[use OpenMP for the Fortran code [[no]]])])
	AC_CACHE_CHECK([whether OpenMP is activated], [wo_cv_fc_use_openmp],
	[dnl
	if test "$FC_SUPPORTS_OPENMP" = "yes" -a "$enable_fc_openmp" = "yes"; then
	wo_cv_fc_use_openmp="yes"
	else
	wo_cv_fc_use_openmp="no"
	fi])
	AM_CONDITIONAL([FC_USE_OPENMP],
	[test "$wo_cv_fc_use_openmp" = "yes"])
	AM_COND_IF([FC_USE_OPENMP],
	[FC_OPENMP_ON=""
	FC_OPENMP_OFF="!"
	FCFLAGS_OPENMP="$wo_cv_fcflags_openmp"
	FC_OPENMP_HEADER="$wo_cv_fc_openmp_header"
	FC_OPENMP_DEFAULT_MAX_THREADS="$wo_cv_fc_openmp_thread_limit"
	],
	[FC_OPENMP_ON="!"
	FC_OPENMP_OFF=""
	FC_OPENMP_DEFAULT_MAX_THREADS="1"
	])
	AC_SUBST([FC_OPENMP_ON])
	AC_SUBST([FC_OPENMP_OFF])
	AC_SUBST([FCFLAGS_OPENMP])
	AC_SUBST([FC_OPENMP_HEADER])
	AC_SUBST([FC_OPENMP_DEFAULT_MAX_THREADS])
	])
	### end WO_FC_SET_OPENMP

	### Check for profiling support
	AC_DEFUN([WO_FC_CHECK_PROFILING],
	[AC_CACHE_CHECK([whether $FC supports profiling via -pg],
	[wo_cv_fc_profiling],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	AC_LANG([Fortran])
	fcflags_tmp=$FCFLAGS
	FCFLAGS="-pg $FCFLAGS"
	rm -f gmon.out
	AC_RUN_IFELSE([dnl
	program conftest
	end program conftest
	],
	[dnl
	if test -f gmon.out; then
	wo_cv_fc_profiling="yes"
	else
	wo_cv_fc_profiling="no"
	fi],
	[wo_cv_fc_profiling="no"],
	[wo_cv_fc_profiling="maybe [cross-compiling]"])
	rm -f gmon.out
	FCFLAGS=$fcflags_tmp
	])
	FC_SUPPORTS_PROFILING="$wo_cv_fc_profiling"
	AC_SUBST([FC_SUPPORTS_PROFILING])
	])
	### end WO_FC_CHECK_PROFILING

	### Enable/disable profiling support
	AC_DEFUN([WO_FC_SET_PROFILING],
	[dnl
	AC_REQUIRE([WO_FC_CHECK_PROFILING])
	AC_ARG_ENABLE([fc_profiling],
	[AS_HELP_STRING([--enable-fc-profiling],
	[use profiling for the Fortran code [[no]]])])
	AC_CACHE_CHECK([whether profiling is activated], [wo_cv_fc_prof],
	[dnl
	if test "$FC_SUPPORTS_PROFILING" = "yes" -a "$enable_fc_profiling" = "yes"; then
	wo_cv_fc_prof="yes"
	FCFLAGS_PROFILING="-pg"
	else
	wo_cv_fc_prof="no"
	FCFLAGS_PROFILING=""
	fi])
	AC_SUBST(FCFLAGS_PROFILING)
	AM_CONDITIONAL([FC_USE_PROFILING],
	[test -n "$FCFLAGS_PROFILING"])
	])
	### end WO_FC_SET_PROFILING

	### Enable/disable impure Omega compilation
	AC_DEFUN([WO_FC_SET_OMEGA_IMPURE],
	[dnl
	AC_REQUIRE([WO_FC_CHECK_F95])
	AC_ARG_ENABLE([impure_omega],
	[AS_HELP_STRING([--enable-fc-impure],
	[compile Omega libraries impure [[no]]])])
	AC_CACHE_CHECK([the default setting for impure omegalib], [wo_cv_fc_impure],
	[dnl
	if test "$impure_omega" = "yes" -o "$FC_SUPPORTS_F95" = "no"; then
	wo_cv_fc_impure="yes"
	else
	wo_cv_fc_impure="no"
	fi])
	AM_CONDITIONAL([FC_IMPURE],
	[test "$wo_cv_fc_impure" = "yes"])
	])
	### end WO_FC_OMEGA_IMPURE

	### Check for quadruple precision support (real and complex!)
	AC_DEFUN([WO_FC_CHECK_QUADRUPLE],
	[dnl
	AC_CACHE_CHECK([whether $FC permits quadruple real and complex],
	[wo_cv_fc_quadruple],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	AC_LANG([Fortran])
	AC_COMPILE_IFELSE([dnl
	program conftest
	integer, parameter :: d=selected_real_kind(precision(1.)+1, range(1.)+1)
	integer, parameter :: q=selected_real_kind(precision(1._d)+1, range(1._d))
	real(kind=q) :: x
	complex(kind=q) :: z
	end program conftest
	],
	[wo_cv_fc_quadruple="yes"],
	[wo_cv_fc_quadruple="no"])
	])
	FC_SUPPORTS_QUADRUPLE="$wo_cv_fc_quadruple"
	AC_SUBST([FC_SUPPORTS_QUADRUPLE])
	])
	### end WO_FC_CHECK_QUADRUPLE

	### Check for C quadruple precision support (real and complex!)
	AC_DEFUN([WO_FC_CHECK_QUADRUPLE_C],
	[dnl
	AC_CACHE_CHECK([whether $FC permits quadruple-precision C types],
	[wo_cv_fc_quadruple_c],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	AC_LANG([Fortran])
	AC_COMPILE_IFELSE([dnl
	program conftest
	use iso_c_binding
	real(c_long_double) :: x
	complex(c_long_double_complex) :: z
	end program conftest
	],
	[wo_cv_fc_quadruple_c="yes"],
	[wo_cv_fc_quadruple_c="no"])
	])
	FC_SUPPORTS_QUADRUPLE_C="$wo_cv_fc_quadruple_c"
	AC_SUBST([FC_SUPPORTS_QUADRUPLE_C])
	])
	### end WO_FC_CHECK_QUADRUPLE_C


	### Enable/disable quadruple precision and set default precision
	AC_DEFUN([WO_FC_SET_PRECISION],
	[dnl
	AC_REQUIRE([WO_FC_CHECK_QUADRUPLE])
	AC_ARG_ENABLE([fc_quadruple],
	[AS_HELP_STRING([--enable-fc-quadruple],
	[use quadruple precision in Fortran code [[no]]])])
	if test "$enable_fc_quadruple" = "yes"; then
	FC_QUAD_OR_SINGLE="quadruple"
	else
	FC_QUAD_OR_SINGLE="single"
	fi
	AC_SUBST([FC_QUAD_OR_SINGLE])
	AC_CACHE_CHECK([the default numeric precision], [wo_cv_fc_precision],
	[dnl
	if test "$FC_SUPPORTS_QUADRUPLE" = "yes" \
	-a "$FC_SUPPORTS_QUADRUPLE_C" = "yes" \
	-a "$enable_fc_quadruple" = "yes"; then
	wo_cv_fc_precision="quadruple"
	wo_cv_fc_precision_c="c_long_double"
	else
	wo_cv_fc_precision="double"
	wo_cv_fc_precision_c="c_double"
	fi
	])
	FC_PRECISION="$wo_cv_fc_precision"
	FC_PRECISION_C="$wo_cv_fc_precision_c"
	AC_SUBST(FC_PRECISION)
	AC_SUBST(FC_PRECISION_C)
	AM_CONDITIONAL([FC_QUAD],
	[test "$FC_PRECISION" = "quadruple"])
	])
	### end WO_FC_SET_PRECISION

	### filename_case_conversion, define two variables LOWERCASE and
	### UPPERCASE for /bin/sh filters that convert strings to lower
	### and upper case, respectively
	AC_DEFUN([WO_FC_FILENAME_CASE_CONVERSION],
	[dnl
	AC_SUBST([LOWERCASE])
	AC_SUBST([UPPERCASE])
	AC_PATH_PROGS(TR,tr)
	AC_MSG_CHECKING([for case conversion])
	if test -n "$TR"; then
	LOWERCASE="$TR A-Z a-z"
	UPPERCASE="$TR a-z A-Z"
	WO_FC_FILENAME_CASE_CONVERSION_TEST
	fi
	if test -n "$UPPERCASE" && test -n "$LOWERCASE"; then
	AC_MSG_RESULT([$TR works])
	else
	LOWERCASE="$SED y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/"
	UPPERCASE="$SED y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/"
	WO_FC_FILENAME_CASE_CONVERSION_TEST
	if test -n "$UPPERCASE" && test -n "$LOWERCASE"; then
	AC_MSG_RESULT([$SED works])
	fi
	fi])
	### end WO_FC_FILE_CASE_CONVERSION
	dnl
	AC_DEFUN([WO_FC_FILENAME_CASE_CONVERSION_TEST],
	[dnl
	if test "`echo fOo \| $LOWERCASE`" != "foo"; then
	LOWERCASE=""
	fi
	if test "`echo fOo \| $UPPERCASE`" != "FOO"; then
	UPPERCASE=""
	fi])

	dnl
	dnl --------------------------------------------------------------------
	dnl
	dnl COMPILE_FC(VARIABLE, COMPILER, EXTENSION, MODULE,
	dnl VALUE_SUCCESS, VALUE_FAILURE, KEEP)
	dnl
	AC_DEFUN([COMPILE_FC],
	[cat >conftest.$3 <<__END__
	$4
	program conftest
	print *, 42
	end program conftest
	__END__
	$2 -o conftest conftest.$3 >/dev/null 2>&1
	./conftest >conftest.out 2>/dev/null
	if test 42 = "`$SED 's/ //g' conftest.out`"; then
	$1="$5"
	else
	$1="$6"
	fi
	if test -z "$7"; then
	rm -rf conftest* CONFTEST*
	fi])

	dnl
	dnl --------------------------------------------------------------------
	dnl
	dnl WO_FC_MODULE_FILE(NAME, EXTENSION, FORTRAN_COMPILER, SOURCE_EXTENSION)
	dnl
	AC_DEFUN([WO_FC_MODULE_FILE],
	[AC_SUBST([$1])
	AC_SUBST([$2])
	AC_MSG_CHECKING([for Fortran90 module file naming convention])
	COMPILE_FC([wo_result], [$3], [$4],
	[module module_NAME
	implicit none
	integer, parameter, public :: forty_two = 42
	end module module_NAME], [ok], [], [KEEP])
	if test -n "[$]wo_result"; then
	$1=unknown
	$2=unknown
	for name in module_name module_NAME MODULE_NAME conftest; do
	for ext in m mod M MOD d D; do
	if test -f "[$]name.[$]ext"; then
	$1="$name"
	$2="$ext"
	break 2
	fi
	done
	done
	if test X"[$]$1" = X"module_name"; then
	AC_MSG_RESULT([name: [$]$1, extension: .[$]$2 ])
	else
	AC_MSG_ERROR([unusual unsupported module file name convention: [$]$1.[$]$2])
	fi
	else
	$1=""
	$2=""
	AC_MSG_RESULT([compiler failed])
	AC_MSG_NOTICE([error: **************************************************************])
	AC_MSG_NOTICE([error: Fortran compiler cannot create proper module files. This])
	AC_MSG_NOTICE([error: might be caused by linking against a wrong gcc library.])
	AC_MSG_ERROR([**************************************************************])
	fi
	rm -rf conftest* CONFTEST* module_name* module_NAME* MODULE_NAME*])
	Index: trunk/src/omega/src/thoFilename.ml
	===================================================================
	--- trunk/src/omega/src/thoFilename.ml (revision 4089)
	+++ trunk/src/omega/src/thoFilename.ml (revision 4090)
	@@ -1,50 +1,42 @@
	(* $Id$

	Copyright (C) 1999-2013 by

	Wolfgang Kilian <kilian@physik.uni-siegen.de>
	Thorsten Ohl <ohl@physik.uni-wuerzburg.de>
	Juergen Reuter <juergen.reuter@desy.de>
	Christian Speckner <cnspeckn@googlemail.com>

	WHIZARD is free software; you can redistribute it and/or modify it
	under the terms of the GNU General Public License as published by
	the Free Software Foundation; either version 2, or (at your option)
	any later version.

	WHIZARD is distributed in the hope that it will be useful, but
	WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	GNU General Public License for more details.

	You should have received a copy of the GNU General Public License
	along with this program; if not, write to the Free Software
	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. *)

	let rec split' acc path =
	match Filename.dirname path, Filename.basename path with
	\| "/", basename -> "/" :: basename :: acc
	\| ".", basename -> basename :: acc
	\| dirname, basename -> split' (basename :: acc) dirname

	let split path =
	split' [] path

	let join = function
	\| [] -> "."
	\| [basename] -> basename
	\| dirname :: rest -> List.fold_left Filename.concat dirname rest

	let expand_home path =
	match split path with
	\| ("~" \| "$HOME" \| "${HOME}") :: rest ->
	join ((try Sys.getenv "HOME" with Not_found -> "/tmp") :: rest)
	\| _ -> path
	-
	-(*i
	- * Local Variables:
	- * mode:caml
	- * indent-tabs-mode:nil
	- * page-delimiter:"^(\\* .*\n"
	- * End:
	-i*)
	Index: trunk/src/omega/m4/fortran.m4
	===================================================================
	--- trunk/src/omega/m4/fortran.m4 (revision 4089)
	+++ trunk/src/omega/m4/fortran.m4 (revision 4090)
	@@ -1,906 +1,924 @@
	dnl fortran.m4 -- Fortran compiler checks beyond Autoconf built-ins
	dnl

	dnl The standard Fortran compiler test is AC_PROG_FC.
	dnl At the end FC, FCFLAGS and FCFLAGS_f90 are set, if successful.

	### Determine vendor and version string.
	AC_DEFUN([WO_FC_GET_VENDOR_AND_VERSION],
	[dnl
	AC_REQUIRE([AC_PROG_FC])

	AC_CACHE_CHECK([the compiler ID string],
	[wo_cv_fc_id_string],
	[dnl
	$FC -V >conftest.log 2>&1
	$FC -version >>conftest.log 2>&1
	$FC --version >>conftest.log 2>&1

	wo_fc_grep_GFORTRAN=`$GREP -i 'GNU Fortran' conftest.log \| head -1`
	wo_fc_grep_G95=`$GREP -i 'g95' conftest.log \| $GREP -i 'gcc' \| head -1`
	wo_fc_grep_NAG=`$GREP 'NAG' conftest.log \| head -1`
	wo_fc_grep_Intel=`$GREP 'IFORT' conftest.log \| head -1`
	wo_fc_grep_Sun=`$GREP 'Sun' conftest.log \| head -1`
	wo_fc_grep_Lahey=`$GREP 'Lahey' conftest.log \| head -1`
	wo_fc_grep_PGF90=`$GREP 'pgf90' conftest.log \| head -1`
	wo_fc_grep_PGF95=`$GREP 'pgf95' conftest.log \| head -1`
	wo_fc_grep_PGHPF=`$GREP 'pghpf' conftest.log \| head -1`
	wo_fc_grep_default=`cat conftest.log \| head -1`

	if test -n "$wo_fc_grep_GFORTRAN"; then
	wo_cv_fc_id_string=$wo_fc_grep_GFORTRAN
	elif test -n "$wo_fc_grep_G95"; then
	wo_cv_fc_id_string=$wo_fc_grep_G95
	elif test -n "$wo_fc_grep_NAG"; then
	wo_cv_fc_id_string=$wo_fc_grep_NAG
	elif test -n "$wo_fc_grep_Intel"; then
	wo_cv_fc_id_string=$wo_fc_grep_Intel
	elif test -n "$wo_fc_grep_Sun"; then
	wo_cv_fc_id_string=$wo_fc_grep_Sun
	elif test -n "$wo_fc_grep_Lahey"; then
	wo_cv_fc_id_string=$wo_fc_grep_Lahey
	elif test -n "$wo_fc_grep_PGF90"; then
	wo_cv_fc_id_string=$wo_fc_grep_PGF90
	elif test -n "$wo_fc_grep_PGF95"; then
	wo_cv_fc_id_string=$wo_fc_grep_PGF95
	elif test -n "$wo_fc_grep_PGHPF"; then
	wo_cv_fc_id_string=$wo_fc_grep_PGHPF
	else
	wo_cv_fc_id_string=$wo_fc_grep_default
	fi

	rm -f conftest.log
	])
	FC_ID_STRING="$wo_cv_fc_id_string"
	AC_SUBST([FC_ID_STRING])

	AC_CACHE_CHECK([the compiler vendor],
	[wo_cv_fc_vendor],
	[dnl
	if test -n "$wo_fc_grep_GFORTRAN"; then
	wo_cv_fc_vendor="gfortran"
	elif test -n "$wo_fc_grep_G95"; then
	wo_cv_fc_vendor="g95"
	elif test -n "$wo_fc_grep_NAG"; then
	wo_cv_fc_vendor="NAG"
	elif test -n "$wo_fc_grep_Intel"; then
	wo_cv_fc_vendor="Intel"
	elif test -n "$wo_fc_grep_Sun"; then
	wo_cv_fc_vendor="Sun"
	elif test -n "$wo_fc_grep_Lahey"; then
	wo_cv_fc_vendor="Lahey"
	elif test -n "$wo_fc_grep_PGF90"; then
	wo_cv_fc_vendor="PGI"
	elif test -n "$wo_fc_grep_PGF95"; then
	wo_cv_fc_vendor="PGI"
	elif test -n "$wo_fc_grep_PGHPF"; then
	wo_cv_fc_vendor="PGI"
	else
	wo_cv_fc_vendor="unknown"
	fi
	])
	FC_VENDOR="$wo_cv_fc_vendor"


	AC_SUBST([FC_VENDOR])

	AM_CONDITIONAL([FC_IS_GFORTRAN],
	[test "$FC_VENDOR" = gfortran])

	AM_CONDITIONAL([FC_IS_NAG],
	[test "$FC_VENDOR" = NAG])

	AC_CACHE_CHECK([the compiler version],
	[wo_cv_fc_version],
	[dnl
	case $FC_VENDOR in
	gfortran)
	wo_cv_fc_version=[`echo $FC_ID_STRING \| $SED -e 's/.$[0-9][0-9]\.[0-9][0-9]\.[0-9][0-9]$.*/\1/'`]
	;;
	g95)
	wo_cv_fc_version=[`echo $FC_ID_STRING \| $SED -e 's/.g95 $[0-9][0-9]\.[0-9][0-9]$.$/\1/'`]
	;;
	NAG)
	wo_cv_fc_version=[`echo $FC_ID_STRING \| $SED -e 's/.* Release $[0-9][0-9]\.[0-9][0-9].*$$/\1/'`]
	;;
	Intel)
	wo_cv_fc_version=[`echo $FC_ID_STRING \| $SED -e 's/[a-zA-Z]//g;s/[0-9]\{8\}$//g'`]
	;;
	Sun)
	wo_cv_fc_version=[`echo $FC_ID_STRING \| $SED -e 's/.* Fortran 95 $[0-9][0-9]\.[0-9][0-9]$ .*/\1/'`]
	;;
	PGI)
	wo_cv_fc_version=[`echo $FC_ID_STRING \| $SED -e 's/[a-zA-Z]//g;s/^[0-9]\{2\}//g;s/32.\\|64.//g'`]
	;;
	*)
	wo_cv_fc_version="unknown"
	;;
	esac
	])
	FC_VERSION="$wo_cv_fc_version"
	AC_SUBST([FC_VERSION])

	### Catch insufficient object-orientation in gfortran 4.5.x
	if test "$wo_cv_fc_vendor" = "gfortran" -a "$wo_cv_fc_version" = "4.5.0" \|\| test "$wo_cv_fc_vendor" = "gfortran" -a "$wo_cv_fc_version" = "4.5.1" \|\| test "$wo_cv_fc_vendor" = "gfortran" -a "$wo_cv_fc_version" = "4.5.2" \|\| test "$wo_cv_fc_vendor" = "gfortran" -a "$wo_cv_fc_version" = "4.5.3" \|\| test "$wo_cv_fc_vendor" = "gfortran" -a "$wo_cv_fc_version" = "4.5.4"; then
	FC_IS_GFORTRAN_45="yes"
	else
	FC_IS_GFORTRAN_45="no"
	fi
	AC_SUBST([FC_IS_GFORTRAN_45])

	+### Catch buggy object-orientation in gfortran 4.6.0,1,2
	+if test "$wo_cv_fc_vendor" = "gfortran" -a "$wo_cv_fc_version" = "4.6.0" \|\| test "$wo_cv_fc_vendor" = "gfortran" -a "$wo_cv_fc_version" = "4.6.1" \|\| test "$wo_cv_fc_vendor" = "gfortran" -a "$wo_cv_fc_version" = "4.6.2"; then
	+FC_IS_GFORTRAN_46012="yes"
	+ else
	+FC_IS_GFORTRAN_46012="no"
	+fi
	+AC_SUBST([FC_IS_GFORTRAN_46012])
	+
	AC_CACHE_CHECK([the major version],
	[wo_cv_fc_major_version],
	[wo_cv_fc_major_version=[`echo $wo_cv_fc_version \| $SED -e 's/$[0-9][0-9]$\../\1/'`]
	])
	FC_MAJOR_VERSION="$wo_cv_fc_major_version"
	AC_SUBST([FC_MAJOR_VERSION])
	])
	### end WO_FC_GET_VENDOR_AND_VERSION

	AC_DEFUN([WO_FC_VETO_GFORTRAN_45],
	[dnl
	if test "$FC_IS_GFORTRAN_45" = "yes"; then
	AC_MSG_NOTICE([error: ***************************************************************])
	AC_MSG_NOTICE([error: gfortran 4.5.x object orientation support insufficient.])
	AC_MSG_ERROR([***************************************************************])
	fi
	])

	+AC_DEFUN([WO_FC_VETO_GFORTRAN_46012],
	+[dnl
	+if test "$FC_IS_GFORTRAN_46012" = "yes"; then
	+AC_MSG_NOTICE([error: ***************************************************************])
	+AC_MSG_NOTICE([error: gfortran 4.6.{0,1,2} are too buggy, we don't support them. ])
	+AC_MSG_NOTICE([error: Please upgrade to at least 4.6.3 or a newer release series. ])
	+AC_MSG_ERROR([***************************************************************])
	+fi
	+])
	+
	### Determine Fortran flags and file extensions
	AC_DEFUN([WO_FC_PARAMETERS],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	AC_REQUIRE([_LT_COMPILER_PIC])
	AC_LANG([Fortran])

	AC_MSG_CHECKING([for $FC flags])
	AC_MSG_RESULT([$FCFLAGS])

	AC_MSG_CHECKING([for $FC flag to produce position-independent code])
	AC_MSG_RESULT([$lt_prog_compiler_pic_FC])
	FCFLAGS_PIC=$lt_prog_compiler_pic_FC
	AC_SUBST([FCFLAGS_PIC])

	AC_MSG_CHECKING([for $FC source extension])
	AC_MSG_RESULT([$ac_fc_srcext])
	FC_SRC_EXT=$ac_fc_srcext
	AC_SUBST([FC_SRC_EXT])

	AC_MSG_CHECKING([for object file extension])
	AC_MSG_RESULT([$ac_objext])
	OBJ_EXT=$ac_objext
	AC_SUBST([OBJ_EXT])
	])
	### end WO_FC_PARAMETERS


	### Determine runtime libraries
	### The standard check is insufficient for some compilers
	AC_DEFUN([WO_FC_LIBRARY_LDFLAGS],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	case "$FC" in
	nagfor*)
	WO_NAGFOR_LIBRARY_LDFLAGS()
	;;
	*)
	AC_FC_LIBRARY_LDFLAGS
	;;
	esac
	])

	### Check the NAG Fortran compiler
	### Use the '-dryrun' feature and extract the libraries from the link command
	### Note that the linker is gcc, not ld
	AC_DEFUN([WO_NAGFOR_LIBRARY_LDFLAGS],
	[dnl
	AC_CACHE_CHECK([Fortran libraries of $FC],
	[wo_cv_fc_libs],
	[dnl
	if test -z "$FCLIBS"; then
	AC_LANG([Fortran])
	AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
	wo_save_fcflags=$FCFLAGS
	FCFLAGS="-dryrun"
	eval "set x $ac_link"
	echo "set x $ac_link"
	shift
	_AS_ECHO_LOG([$[*]])
	wo_nagfor_output=`eval $ac_link AS_MESSAGE_LOG_FD>&1 2>&1`
	echo "$wo_nagfor_output" >&AS_MESSAGE_LOG_FD
	FCFLAGS=$wo_save_fcflags
	wo_cv_fc_libs=`echo $wo_nagfor_output \| $SED -e 's/.* -o conftest $.*$$/\1/' \| $SED -e "s/conftest.$ac_objext //"`
	else
	wo_cv_fc_libs=$FCLIBS
	fi
	])
	FCLIBS=$wo_cv_fc_libs
	AC_SUBST([FCLIBS])
	])

	### Check for basic F95 features
	AC_DEFUN([WO_FC_CHECK_F95],
	[dnl
	AC_CACHE_CHECK([whether $FC supports Fortran 95 features],
	[wo_cv_fc_supports_f95],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	AC_LANG([Fortran])
	AC_COMPILE_IFELSE([dnl
	program conftest
	integer, dimension(2) :: ii
	integer :: i
	type :: foo
	integer, pointer :: bar => null ()
	end type foo
	forall (i = 1:2) ii(i) = i
	contains
	elemental function f(x)
	real, intent(in) :: x
	real :: f
	f = x
	end function f
	pure function g (x) result (gx)
	real, intent(in) :: x
	real :: gx
	gx = x
	end function g
	end program conftest
	],
	[wo_cv_fc_supports_f95="yes"],
	[wo_cv_fc_supports_f95="no"])
	])
	FC_SUPPORTS_F95="$wo_cv_fc_supports_f95"
	AC_SUBST([FC_SUPPORTS_F95])
	if test "$FC_SUPPORTS_F95" = "no"; then
	AC_MSG_NOTICE([error: ******************************************************************])
	AC_MSG_NOTICE([error: Fortran compiler is not a genuine F95 compiler, configure aborted.])
	AC_MSG_ERROR([******************************************************************])
	fi])
	### end WO_FC_CHECK_F95

	### Check for the TR15581 extensions (allocatable subobjects)
	AC_DEFUN([WO_FC_CHECK_TR15581],
	[AC_CACHE_CHECK([whether $FC supports allocatable subobjects],
	[wo_cv_fc_allocatable],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	AC_LANG([Fortran])
	AC_COMPILE_IFELSE([dnl
	program conftest
	type :: foo
	integer, dimension(:), allocatable :: bar
	end type foo
	end program conftest
	],
	[wo_cv_fc_allocatable="yes"],
	[wo_cv_fc_allocatable="no"])
	])
	FC_SUPPORTS_ALLOCATABLE="$wo_cv_fc_allocatable"
	AC_SUBST([FC_SUPPORTS_ALLOCATABLE])
	if test "$FC_SUPPORTS_ALLOCATABLE" = "no"; then
	AC_MSG_NOTICE([error: ****************************************************************************])
	AC_MSG_NOTICE([error: Fortran compiler does not support allocatable structures, configure aborted.])
	AC_MSG_ERROR([****************************************************************************])
	fi])
	### end WO_FC_CHECK_TR15581


	### Check for allocatable scalars
	AC_DEFUN([WO_FC_CHECK_ALLOCATABLE_SCALARS],
	[AC_CACHE_CHECK([whether $FC supports allocatable scalars],
	[wo_cv_fc_allocatable_scalars],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	AC_LANG([Fortran])
	AC_COMPILE_IFELSE([dnl
	program conftest
	type :: foo
	integer, allocatable :: bar
	end type foo
	end program conftest
	],
	[wo_cv_fc_allocatable_scalars="yes"],
	[wo_cv_fc_allocatable_scalars="no"])
	])
	FC_SUPPORTS_ALLOCATABLE_SCALARS="$wo_cv_fc_allocatable"
	AC_SUBST([FC_SUPPORTS_ALLOCATABLE_SCALARS])
	])
	### end WO_FC_CHECK_ALLOCATABLE_SCALARS


	### Check for the C bindings extensions of Fortran 2003
	AC_DEFUN([WO_FC_CHECK_C_BINDING],
	[AC_CACHE_CHECK([whether $FC supports ISO C binding and standard numeric types],
	[wo_cv_fc_c_binding],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	AC_LANG([Fortran])
	AC_COMPILE_IFELSE([dnl
	program conftest
	use iso_c_binding
	type, bind(c) :: t
	integer(c_int) :: i
	real(c_float) :: x1
	real(c_double) :: x2
	complex(c_float_complex) :: z1
	complex(c_double_complex) :: z2
	end type t
	end program conftest
	],
	[wo_cv_fc_c_binding="yes"],
	[wo_cv_fc_c_binding="no"])
	])
	FC_SUPPORTS_C_BINDING="$wo_cv_fc_c_binding"
	AC_SUBST([FC_SUPPORTS_C_BINDING])
	if test "$FC_SUPPORTS_C_BINDING" = "no"; then
	AC_MSG_NOTICE([error: *******************************************************************])
	AC_MSG_NOTICE([error: Fortran compiler does not support ISO C binding, configure aborted.])
	AC_MSG_ERROR([********************************************************************])
	fi
	])
	### end WO_FC_CHECK_C_BINDING


	### Check for procedure pointers
	AC_DEFUN([WO_FC_CHECK_PROCEDURE_POINTERS],
	[AC_CACHE_CHECK([whether $FC supports procedure pointers (F2003)],
	[wo_cv_prog_f03_procedure_pointers],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	AC_LANG([Fortran])
	AC_COMPILE_IFELSE([dnl
	program conftest
	type :: foo
	procedure (proc_template), nopass, pointer :: proc => null ()
	end type foo
	abstract interface
	subroutine proc_template ()
	end subroutine proc_template
	end interface
	end program conftest
	],
	[wo_cv_prog_f03_procedure_pointers="yes"],
	[wo_cv_prog_f03_procedure_pointers="no"])
	])
	FC_SUPPORTS_PROCEDURE_POINTERS="$wo_cv_prog_f03_procedure_pointers"
	AC_SUBST([FC_SUPPORTS_PROCEDURE_POINTERS])
	if test "$FC_SUPPORTS_PROCEDURE_POINTERS" = "no"; then
	AC_MSG_NOTICE([error: ***************************************************************************])
	AC_MSG_NOTICE([error: Fortran compiler does not understand procedure pointers, configure aborted.])
	AC_MSG_ERROR([***************************************************************************])
	fi])
	### end WO_FC_CHECK_PROCEDURE_POINTERS


	### Check for the OO extensions of Fortran 2003
	AC_DEFUN([WO_FC_CHECK_OO_FEATURES],
	[AC_CACHE_CHECK([whether $FC supports OO features (F2003)],
	[wo_cv_prog_f03_oo_features],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	AC_LANG([Fortran])
	AC_COMPILE_IFELSE([dnl
	module conftest
	type, abstract :: foo
	contains
	procedure (proc_template), deferred :: proc
	end type foo
	type, extends (foo) :: foobar
	contains
	procedure :: proc
	end type foobar
	abstract interface
	subroutine proc_template (f)
	import foo
	class(foo), intent(inout) :: f
	end subroutine proc_template
	end interface
	contains
	subroutine proc (f)
	class(foobar), intent(inout) :: f
	end subroutine proc
	end module conftest
	program main
	use conftest
	end program main
	],
	[wo_cv_prog_f03_oo_features="yes"],
	[wo_cv_prog_f03_oo_features="no"])
	])
	FC_SUPPORTS_OO_FEATURES="$wo_cv_prog_f03_oo_features"
	AC_SUBST([FC_SUPPORTS_OO_FEATURES])
	])
	### end WO_FC_CHECK_OO_FEATURES


	### Check for the command line interface of Fortran 2003
	### We actually have to link in order to check availability
	AC_DEFUN([WO_FC_CHECK_CMDLINE],
	[AC_CACHE_CHECK([whether $FC interfaces the command line (F2003)],
	[wo_cv_fc_cmdline],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	AC_LANG([Fortran])
	AC_LINK_IFELSE([dnl
	program conftest
	call get_command_argument (command_argument_count ())
	end program conftest
	],
	[wo_cv_fc_cmdline="yes"],
	[wo_cv_fc_cmdline="no"])
	])
	FC_SUPPORTS_CMDLINE="$wo_cv_fc_cmdline"
	AC_SUBST([FC_SUPPORTS_CMDLINE])
	if test "$FC_SUPPORTS_CMDLINE" = "no"; then
	AC_MSG_NOTICE([error: ******************************************************************])
	AC_MSG_NOTICE([error: Fortran compiler does not support get_command_argument; configure aborted.])
	AC_MSG_ERROR([******************************************************************])
	fi
	])
	### end WO_FC_CHECK_CMDLINE

	### Check whether we can access environment variables (2003 standard)
	### We actually have to link in order to check availability
	AC_DEFUN([WO_FC_CHECK_ENVVAR],
	[AC_CACHE_CHECK([whether $FC provides access to environment variables (F2003)],
	[wo_cv_fc_envvar],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	AC_LANG([Fortran])
	AC_LINK_IFELSE([dnl
	program conftest
	character(len=256) :: home
	call get_environment_variable ("HOME", home)
	end program conftest
	],
	[wo_cv_fc_envvar="yes"],
	[wo_cv_fc_envvar="no"])
	])
	FC_SUPPORTS_ENVVAR="$wo_cv_fc_envvar"
	AC_SUBST([FC_SUPPORTS_ENVVAR])
	if test "$FC_SUPPORTS_ENVVAR" = "no"; then
	AC_MSG_NOTICE([error: ***************************************************************************])
	AC_MSG_NOTICE([error: Fortran compiler does not support get_environment_variable; configure aborted.])
	AC_MSG_ERROR([***************************************************************************])
	fi])
	### end WO_FC_CHECK_ENVVAR

	### Check whether the flush statement is supported
	AC_DEFUN([WO_FC_CHECK_FLUSH],
	[AC_CACHE_CHECK([whether $FC supports the flush statement (F2003)],
	[wo_cv_fc_flush],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	AC_LANG([Fortran])
	AC_COMPILE_IFELSE([dnl
	program conftest
	implicit none
	integer, parameter :: u=50
	open (u, action="readwrite", status="scratch")
	write (u, *) "test"
	flush (u)
	close (u)
	end program conftest
	],
	[wo_cv_fc_flush="yes"],
	[wo_cv_fc_flush="no"])
	])
	FC_SUPPORTS_FLUSH="$wo_cv_fc_flush"
	AC_SUBST([FC_SUPPORTS_FLUSH])
	if test "$FC_SUPPORTS_FLUSH" = "no"; then
	AC_MSG_NOTICE([error: ***************************************************************************])
	AC_MSG_NOTICE([error: Fortran compiler does not support the flush statement; configure aborted.])
	AC_MSG_ERROR([***************************************************************************])
	fi])
	### end WO_FC_CHECK_FLUSH

	### Check for iso_fortran_env
	AC_DEFUN([WO_FC_CHECK_ISO_FORTRAN_ENV],
	[AC_ARG_ENABLE([iso_fortran_env],
	[AC_HELP_STRING([--disable-iso_fortran_env],
	[disable use of iso_fortran_env, even if the compiler supports it]
	)],
	[], [enable_iso_fortran_env=yes]
	)
	if test "$enable_iso_fortran_env" = yes; then
	AC_CACHE_CHECK([whether $FC supports iso_fortran_env (F2003)],
	[wo_cv_fc_iso_fortran_env],
	AC_REQUIRE([AC_PROG_FC])
	AC_LANG([Fortran])
	[AC_LINK_IFELSE(
	[dnl
	program conftest
	use iso_fortran_env
	implicit none
	integer :: i
	i = input_unit
	i = output_unit
	i = error_unit
	i = iostat_end
	i = iostat_eor
	end program conftest
	], [wo_cv_fc_iso_fortran_env=yes], [wo_cv_fc_iso_fortran_env=no]
	)]
	)
	test "$wo_cv_fc_iso_fortran_env" = no && iso_fortran_env_stub=yes
	else
	AC_CHECKING([whether $FC supports iso_fortran_env (F2003)... disabled])
	iso_fortran_env_stub=yes
	fi
	AM_CONDITIONAL([ISO_FORTRAN_ENV_STUB], [test -n "$iso_fortran_env_stub"])
	]
	)

	### Check for wrapping of linker flags
	### (nagfor 'feature': must be wrapped twice)
	AC_DEFUN([WO_FC_CHECK_LDFLAGS_WRAPPING],
	[AC_CACHE_CHECK([for wrapping of linker flags via -Wl],
	[wo_cv_fc_ldflags_wrapping],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	AC_LANG([Fortran])
	ldflags_tmp=$LDFLAGS
	LDFLAGS=-Wl,-rpath,/usr/lib
	AC_LINK_IFELSE(AC_LANG_PROGRAM(),
	[wo_cv_fc_ldflags_wrapping="once"],
	[wo_cv_fc_ldflags_wrapping="unknown"])
	if test "$wo_cv_fc_ldflags_wrapping" = "unknown"; then
	LDFLAGS=-Wl,-Wl,,-rpath,,/usr/lib
	AC_LINK_IFELSE(AC_LANG_PROGRAM(),
	[wo_cv_fc_ldflags_wrapping="twice"])
	fi
	LDFLAGS=$ldflags_tmp
	])
	FC_LDFLAGS_WRAPPING="$wo_cv_fc_ldflags_wrapping"
	AC_SUBST([FC_LDFLAGS_WRAPPING])
	])
	### end WO_FC_CHECK_LDFLAGS_WRAPPING

	### Check for OpenMP support
	AC_DEFUN([WO_FC_CHECK_OPENMP],
	[AC_CACHE_CHECK([whether $FC supports OpenMP],
	[wo_cv_fc_openmp],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	AC_LANG([Fortran])
	case $FC_VENDOR in
	gfortran)
	wo_cv_fc_openmp="yes"
	wo_cv_fcflags_openmp="-fopenmp"
	wo_cv_fc_openmp_header="use omp_lib"
	;;
	NAG)
	wo_cv_fc_openmp="no"
	;;
	Intel)
	wo_cv_fc_openmp="yes"
	wo_cv_fcflags_openmp="-openmp"
	wo_cv_fc_openmp_header="use omp_lib"
	;;
	PGI)
	wo_cv_fc_openmp="yes"
	wo_cv_fcflags_openmp="-mp"
	wo_cv_fc_openmp_header=""
	;;
	*)
	wo_cv_fc_openmp="no"
	;;
	esac
	if test "$wo_cv_fc_openmp"="yes"; then
	fcflags_tmp=$FCFLAGS
	FCFLAGS="$wo_cv_fcflags_openmp $FCFLAGS"
	unset OMP_NUM_THREADS
	AC_RUN_IFELSE([dnl
	program conftest
	$wo_cv_fc_openmp_header
	open (11, file="conftest.out", action="write", status="replace")
	write (11, "(I0)") omp_get_max_threads ()
	close (11)
	end program conftest
	],
	[dnl
	wo_cv_fc_openmp="yes"
	wo_cv_fc_openmp_thread_limit=`cat conftest.out`],
	[wo_cv_fc_openmp="no"],
	[wo_cv_fc_openmp="maybe [cross-compiling]"])
	FCFLAGS=$fcflags_tmp
	fi
	])
	if test "$wo_cv_fc_openmp" = "yes"; then
	AC_CACHE_CHECK([the default number of threads used by OpenMP],
	[wo_cv_fc_openmp_thread_limit])
	fi
	FC_SUPPORTS_OPENMP="$wo_cv_fc_openmp"
	AC_SUBST([FC_SUPPORTS_OPENMP])
	])
	### end WO_FC_CHECK_OPENMP

	### Enable/disable OpenMP support
	AC_DEFUN([WO_FC_SET_OPENMP],
	[dnl
	AC_REQUIRE([WO_FC_CHECK_OPENMP])
	AC_ARG_ENABLE([fc_openmp],
	[AS_HELP_STRING([--enable-fc-openmp],
	[use OpenMP for the Fortran code [[no]]])])
	AC_CACHE_CHECK([whether OpenMP is activated], [wo_cv_fc_use_openmp],
	[dnl
	if test "$FC_SUPPORTS_OPENMP" = "yes" -a "$enable_fc_openmp" = "yes"; then
	wo_cv_fc_use_openmp="yes"
	else
	wo_cv_fc_use_openmp="no"
	fi])
	AM_CONDITIONAL([FC_USE_OPENMP],
	[test "$wo_cv_fc_use_openmp" = "yes"])
	AM_COND_IF([FC_USE_OPENMP],
	[FC_OPENMP_ON=""
	FC_OPENMP_OFF="!"
	FCFLAGS_OPENMP="$wo_cv_fcflags_openmp"
	FC_OPENMP_HEADER="$wo_cv_fc_openmp_header"
	FC_OPENMP_DEFAULT_MAX_THREADS="$wo_cv_fc_openmp_thread_limit"
	],
	[FC_OPENMP_ON="!"
	FC_OPENMP_OFF=""
	FC_OPENMP_DEFAULT_MAX_THREADS="1"
	])
	AC_SUBST([FC_OPENMP_ON])
	AC_SUBST([FC_OPENMP_OFF])
	AC_SUBST([FCFLAGS_OPENMP])
	AC_SUBST([FC_OPENMP_HEADER])
	AC_SUBST([FC_OPENMP_DEFAULT_MAX_THREADS])
	])
	### end WO_FC_SET_OPENMP

	### Check for profiling support
	AC_DEFUN([WO_FC_CHECK_PROFILING],
	[AC_CACHE_CHECK([whether $FC supports profiling via -pg],
	[wo_cv_fc_profiling],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	AC_LANG([Fortran])
	fcflags_tmp=$FCFLAGS
	FCFLAGS="-pg $FCFLAGS"
	rm -f gmon.out
	AC_RUN_IFELSE([dnl
	program conftest
	end program conftest
	],
	[dnl
	if test -f gmon.out; then
	wo_cv_fc_profiling="yes"
	else
	wo_cv_fc_profiling="no"
	fi],
	[wo_cv_fc_profiling="no"],
	[wo_cv_fc_profiling="maybe [cross-compiling]"])
	rm -f gmon.out
	FCFLAGS=$fcflags_tmp
	])
	FC_SUPPORTS_PROFILING="$wo_cv_fc_profiling"
	AC_SUBST([FC_SUPPORTS_PROFILING])
	])
	### end WO_FC_CHECK_PROFILING

	### Enable/disable profiling support
	AC_DEFUN([WO_FC_SET_PROFILING],
	[dnl
	AC_REQUIRE([WO_FC_CHECK_PROFILING])
	AC_ARG_ENABLE([fc_profiling],
	[AS_HELP_STRING([--enable-fc-profiling],
	[use profiling for the Fortran code [[no]]])])
	AC_CACHE_CHECK([whether profiling is activated], [wo_cv_fc_prof],
	[dnl
	if test "$FC_SUPPORTS_PROFILING" = "yes" -a "$enable_fc_profiling" = "yes"; then
	wo_cv_fc_prof="yes"
	FCFLAGS_PROFILING="-pg"
	else
	wo_cv_fc_prof="no"
	FCFLAGS_PROFILING=""
	fi])
	AC_SUBST(FCFLAGS_PROFILING)
	AM_CONDITIONAL([FC_USE_PROFILING],
	[test -n "$FCFLAGS_PROFILING"])
	])
	### end WO_FC_SET_PROFILING

	### Enable/disable impure Omega compilation
	AC_DEFUN([WO_FC_SET_OMEGA_IMPURE],
	[dnl
	AC_REQUIRE([WO_FC_CHECK_F95])
	AC_ARG_ENABLE([impure_omega],
	[AS_HELP_STRING([--enable-fc-impure],
	[compile Omega libraries impure [[no]]])])
	AC_CACHE_CHECK([the default setting for impure omegalib], [wo_cv_fc_impure],
	[dnl
	if test "$impure_omega" = "yes" -o "$FC_SUPPORTS_F95" = "no"; then
	wo_cv_fc_impure="yes"
	else
	wo_cv_fc_impure="no"
	fi])
	AM_CONDITIONAL([FC_IMPURE],
	[test "$wo_cv_fc_impure" = "yes"])
	])
	### end WO_FC_OMEGA_IMPURE

	### Check for quadruple precision support (real and complex!)
	AC_DEFUN([WO_FC_CHECK_QUADRUPLE],
	[dnl
	AC_CACHE_CHECK([whether $FC permits quadruple real and complex],
	[wo_cv_fc_quadruple],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	AC_LANG([Fortran])
	AC_COMPILE_IFELSE([dnl
	program conftest
	integer, parameter :: d=selected_real_kind(precision(1.)+1, range(1.)+1)
	integer, parameter :: q=selected_real_kind(precision(1._d)+1, range(1._d))
	real(kind=q) :: x
	complex(kind=q) :: z
	end program conftest
	],
	[wo_cv_fc_quadruple="yes"],
	[wo_cv_fc_quadruple="no"])
	])
	FC_SUPPORTS_QUADRUPLE="$wo_cv_fc_quadruple"
	AC_SUBST([FC_SUPPORTS_QUADRUPLE])
	])
	### end WO_FC_CHECK_QUADRUPLE

	### Check for C quadruple precision support (real and complex!)
	AC_DEFUN([WO_FC_CHECK_QUADRUPLE_C],
	[dnl
	AC_CACHE_CHECK([whether $FC permits quadruple-precision C types],
	[wo_cv_fc_quadruple_c],
	[dnl
	AC_REQUIRE([AC_PROG_FC])
	AC_LANG([Fortran])
	AC_COMPILE_IFELSE([dnl
	program conftest
	use iso_c_binding
	real(c_long_double) :: x
	complex(c_long_double_complex) :: z
	end program conftest
	],
	[wo_cv_fc_quadruple_c="yes"],
	[wo_cv_fc_quadruple_c="no"])
	])
	FC_SUPPORTS_QUADRUPLE_C="$wo_cv_fc_quadruple_c"
	AC_SUBST([FC_SUPPORTS_QUADRUPLE_C])
	])
	### end WO_FC_CHECK_QUADRUPLE_C


	### Enable/disable quadruple precision and set default precision
	AC_DEFUN([WO_FC_SET_PRECISION],
	[dnl
	AC_REQUIRE([WO_FC_CHECK_QUADRUPLE])
	AC_ARG_ENABLE([fc_quadruple],
	[AS_HELP_STRING([--enable-fc-quadruple],
	[use quadruple precision in Fortran code [[no]]])])
	if test "$enable_fc_quadruple" = "yes"; then
	FC_QUAD_OR_SINGLE="quadruple"
	else
	FC_QUAD_OR_SINGLE="single"
	fi
	AC_SUBST([FC_QUAD_OR_SINGLE])
	AC_CACHE_CHECK([the default numeric precision], [wo_cv_fc_precision],
	[dnl
	if test "$FC_SUPPORTS_QUADRUPLE" = "yes" \
	-a "$FC_SUPPORTS_QUADRUPLE_C" = "yes" \
	-a "$enable_fc_quadruple" = "yes"; then
	wo_cv_fc_precision="quadruple"
	wo_cv_fc_precision_c="c_long_double"
	else
	wo_cv_fc_precision="double"
	wo_cv_fc_precision_c="c_double"
	fi
	])
	FC_PRECISION="$wo_cv_fc_precision"
	FC_PRECISION_C="$wo_cv_fc_precision_c"
	AC_SUBST(FC_PRECISION)
	AC_SUBST(FC_PRECISION_C)
	AM_CONDITIONAL([FC_QUAD],
	[test "$FC_PRECISION" = "quadruple"])
	])
	### end WO_FC_SET_PRECISION

	### filename_case_conversion, define two variables LOWERCASE and
	### UPPERCASE for /bin/sh filters that convert strings to lower
	### and upper case, respectively
	AC_DEFUN([WO_FC_FILENAME_CASE_CONVERSION],
	[dnl
	AC_SUBST([LOWERCASE])
	AC_SUBST([UPPERCASE])
	AC_PATH_PROGS(TR,tr)
	AC_MSG_CHECKING([for case conversion])
	if test -n "$TR"; then
	LOWERCASE="$TR A-Z a-z"
	UPPERCASE="$TR a-z A-Z"
	WO_FC_FILENAME_CASE_CONVERSION_TEST
	fi
	if test -n "$UPPERCASE" && test -n "$LOWERCASE"; then
	AC_MSG_RESULT([$TR works])
	else
	LOWERCASE="$SED y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/"
	UPPERCASE="$SED y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/"
	WO_FC_FILENAME_CASE_CONVERSION_TEST
	if test -n "$UPPERCASE" && test -n "$LOWERCASE"; then
	AC_MSG_RESULT([$SED works])
	fi
	fi])
	### end WO_FC_FILE_CASE_CONVERSION
	dnl
	AC_DEFUN([WO_FC_FILENAME_CASE_CONVERSION_TEST],
	[dnl
	if test "`echo fOo \| $LOWERCASE`" != "foo"; then
	LOWERCASE=""
	fi
	if test "`echo fOo \| $UPPERCASE`" != "FOO"; then
	UPPERCASE=""
	fi])

	dnl
	dnl --------------------------------------------------------------------
	dnl
	dnl COMPILE_FC(VARIABLE, COMPILER, EXTENSION, MODULE,
	dnl VALUE_SUCCESS, VALUE_FAILURE, KEEP)
	dnl
	AC_DEFUN([COMPILE_FC],
	[cat >conftest.$3 <<__END__
	$4
	program conftest
	print *, 42
	end program conftest
	__END__
	$2 -o conftest conftest.$3 >/dev/null 2>&1
	./conftest >conftest.out 2>/dev/null
	if test 42 = "`$SED 's/ //g' conftest.out`"; then
	$1="$5"
	else
	$1="$6"
	fi
	if test -z "$7"; then
	rm -rf conftest* CONFTEST*
	fi])

	dnl
	dnl --------------------------------------------------------------------
	dnl
	dnl WO_FC_MODULE_FILE(NAME, EXTENSION, FORTRAN_COMPILER, SOURCE_EXTENSION)
	dnl
	AC_DEFUN([WO_FC_MODULE_FILE],
	[AC_SUBST([$1])
	AC_SUBST([$2])
	AC_MSG_CHECKING([for Fortran90 module file naming convention])
	COMPILE_FC([wo_result], [$3], [$4],
	[module module_NAME
	implicit none
	integer, parameter, public :: forty_two = 42
	end module module_NAME], [ok], [], [KEEP])
	if test -n "[$]wo_result"; then
	$1=unknown
	$2=unknown
	for name in module_name module_NAME MODULE_NAME conftest; do
	for ext in m mod M MOD d D; do
	if test -f "[$]name.[$]ext"; then
	$1="$name"
	$2="$ext"
	break 2
	fi
	done
	done
	if test X"[$]$1" = X"module_name"; then
	AC_MSG_RESULT([name: [$]$1, extension: .[$]$2 ])
	else
	AC_MSG_ERROR([unusual unsupported module file name convention: [$]$1.[$]$2])
	fi
	else
	$1=""
	$2=""
	AC_MSG_RESULT([compiler failed])
	AC_MSG_NOTICE([error: **************************************************************])
	AC_MSG_NOTICE([error: Fortran compiler cannot create proper module files. This])
	AC_MSG_NOTICE([error: might be caused by linking against a wrong gcc library.])
	AC_MSG_ERROR([**************************************************************])
	fi
	rm -rf conftest* CONFTEST* module_name* module_NAME* MODULE_NAME*])

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