From f7ec8c304ec35db4b71dc87530c344db4758855c Mon Sep 17 00:00:00 2001
From: mark <mark@opencfd>
Date: Tue, 28 Jun 2016 14:28:01 +0200
Subject: [PATCH] ENH: add makeFFTW build script

---
 README.org |   3 +-
 makeFFTW   | 169 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 171 insertions(+), 1 deletion(-)
 create mode 100755 makeFFTW

diff --git a/README.org b/README.org
index aaa005d..c7b0ebb 100644
--- a/README.org
+++ b/README.org
@@ -2,7 +2,7 @@
 #
 #+TITLE:                 OpenFOAM Third-Party packages
 #+AUTHOR:            The OpenFOAM Foundation / OpenCFD Ltd.
-#+DATE:                           2016-06-19
+#+DATE:                           2016-06-28
 #+LINK:                     http://www.openfoam.org
 #+OPTIONS: author:nil ^:{}
 # Copyright (c) 2014-2016 OpenFOAM Foundation.
@@ -44,6 +44,7 @@
     + CGAL        https://github.com/CGAL/cgal/releases/download/releases%2FCGAL-4.8/CGAL-4.8.tar.xz
     + boost       https://sourceforge.net/projects/boost/files/boost/1.61.0/boost_1_61_0.tar.bz2/download
 *** Miscellaneous
+    + FFTW        http://www.fftw.org/fftw-3.3.4.tar.gz
     + libccmio    http://portal.nersc.gov/svn/visit/trunk/third_party/libccmio-2.6.1.tar.gz
 * Notes
 *** Building ParaView-4.3.1/4.4.0/5.0.0/5.0.1
diff --git a/makeFFTW b/makeFFTW
new file mode 100755
index 0000000..f70539b
--- /dev/null
+++ b/makeFFTW
@@ -0,0 +1,169 @@
+#!/bin/sh
+#------------------------------------------------------------------------------
+# =========                 |
+# \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+#  \\    /   O peration     |
+#   \\  /    A nd           | Copyright (C) 2016 OpenCFD Ltd.
+#    \\/     M anipulation  |
+#------------------------------------------------------------------------------
+# License
+#     This file is part of OpenFOAM.
+#
+#     OpenFOAM 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 3 of the License, or
+#     (at your option) any later version.
+#
+#     OpenFOAM 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 OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
+#
+# Script
+#     makeFFTW
+#
+# Description
+#     Build script for FFTW
+#
+#------------------------------------------------------------------------------
+
+# Get FFTW versions
+. $WM_PROJECT_DIR/etc/config.sh/functions
+unset _foamAddPath _foamAddLib _foamAddMan # get settings only
+
+_foamSource $($WM_PROJECT_DIR/bin/foamEtcFile config.sh/FFTW)
+
+fftwPACKAGE=${fftw_version:-fftw-system}
+
+#------------------------------------------------------------------------------
+# Run from third-party directory only
+wmakeCheckPwd "$WM_THIRD_PARTY_DIR" || {
+    echo "Error: Current directory is not \$WM_THIRD_PARTY_DIR"
+    echo "    The environment variables are inconsistent with the installation."
+    echo "    Check the OpenFOAM entries in your dot-files and source them."
+    exit 1
+}
+. etc/tools/ThirdPartyFunctions
+#------------------------------------------------------------------------------
+Script="${0##*/}"
+
+usage() {
+    exec 1>&2
+    while [ "$#" -ge 1 ]; do echo "$1"; shift; done
+    cat<<USAGE
+
+usage: $Script [OPTION] [fftw-VERSION]
+options:
+  -gcc              Force gcc/g++ instead of the values from \$WM_CC, \$WM_CXX
+  -help
+
+* build FFTW with
+      $fftwPACKAGE
+
+USAGE
+    exit 1
+}
+#------------------------------------------------------------------------------
+
+# Parse options
+while [ "$#" -gt 0 ]
+do
+    case "$1" in
+    -h | -help)
+        usage
+        ;;
+    '')
+        # discard empty arguments
+        ;;
+    -gcc)
+        export CC=gcc    # use gcc
+        export CXX=g++   # use g++
+        ;;
+    fftw-[0-9]* | fftw_[0-9]* | fftw-system )
+        fftwPACKAGE="${1%%/}"
+        ;;
+    *)
+        die "unknown option/argument: '$1'"
+        ;;
+    esac
+    shift
+done
+
+[ -n "$fftwPACKAGE" ] || die "The fftw-VERSION was not specified"
+
+# nothing to build
+if _foamIsNone "$fftwPACKAGE"
+then
+    echo "Using fftw-none (skip ThirdParty build of FFTW)"
+    exit 0
+fi
+
+if _foamIsSystem "$fftwPACKAGE"
+then
+    echo "Using fftw-system (skip ThirdParty build of FFTW)"
+    exit 0
+fi
+
+#------------------------------------------------------------------------------
+#
+# Build FFTW
+# For 64-bit
+# - FFTW itself will normally build into 'lib64',
+#   but provide --libdir on configure to be 100% certain
+# - Third-Party builds into 'lib64'
+# - system is normally built into 'lib64'
+#
+#   FFTW_SOURCE_DIR : location of the original sources
+
+FFTW_ARCH_PATH=$installBASE/$fftwPACKAGE
+FFTW_SOURCE_DIR=$WM_THIRD_PARTY_DIR/$fftwPACKAGE
+
+if [ -r "$FFTW_ARCH_PATH/lib$WM_COMPILER_LIB_ARCH/libfftw3.so" ]
+then
+    echo "Already has FFTW shared library"
+else
+    echo "Starting build: FFTW ($fftwPACKAGE)"
+    echo
+
+    (
+        # configuration options:
+        unset configOpt
+
+        # Single-precision needed?
+        if [ "${WM_PRECISION_OPTION}" = SP ]
+        then
+            configOpt="$configOpt --enable-single"
+        fi
+
+        # end of configuration options
+        # ----------------------------
+        buildDIR=$buildBASE/$fftwPACKAGE
+
+        cd $FFTW_SOURCE_DIR || exit 1
+
+        rm -rf $FFTW_ARCH_PATH
+        rm -rf $buildDIR
+        mkdir -p $buildDIR
+        cd $buildDIR
+
+        set -x
+        $FFTW_SOURCE_DIR/configure \
+            --prefix=$FFTW_ARCH_PATH \
+            --libdir=$FFTW_ARCH_PATH/lib$WM_COMPILER_LIB_ARCH \
+            --enable-shared --disable-static \
+            --disable-fortran \
+            $configOpt \
+            && make -j $WM_NCOMPPROCS \
+            && make install \
+            && echo "Built $fftwPACKAGE"
+    ) || {
+        echo "Error building: FFTW"
+        exit 1
+    }
+fi
+
+
+#------------------------------------------------------------------------------