#!/bin/bash
#
#  fftw 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 of the License, or any later version.
#
#  fftw 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., 59 Temple
#  Place - Suite 330, Boston, MA 02111-1307, USA
#
# slackbuild script for fftw
# by rhatto at riseup.net
#

if [ -s "slack-required" ]; then
  echo Recomended and required packages for building fftw are:
  cat slack-required | sed -e 's/^/\t/'
  if [ "$INTERACT" != "no" ]; then
    echo If you dont have those installed, press Ctrl-C. Otherwise, hit ENTER.
    read crap
#  else
#    echo Sleeping 3 seconds...
#    sleep 3
  fi
fi

CWD="`pwd`"

if [ -f ~/.slackbuildrc ]; then
  source ~/.slackbuildrc
elif [ -f /etc/slackbuildrc ]; then
  source /etc/slackbuildrc
fi

# default settings
PACKAGE="fftw"
ARCH=${ARCH:=i486}
VERSION=${VERSION:=3.1.2}
BUILD=${BUILD:=1rha}
SRC_DIR=${SRC:=$CWD}
TMP=${TMP:=/tmp}
REPOS=${REPOS:=$TMP}

if [ "$ARCH" == "x86_64" ]; then
  export LDFLAGS="-L/lib64 -L/usr/lib64"
  LIBDIR=/usr/lib64
else
  LIBDIR=/usr/lib
fi

RTOOL="wget"
PACKAGE_EXT="gz"
SRC="$PACKAGE-$VERSION.tar.$PACKAGE_EXT"
URL="http://www.fftw.org/$SRC"

SRC_DIR="$SRC_DIR/$PACKAGE"
mkdir -p $SRC_DIR

if [ "$PACKAGE_EXT" == "bz2" ]; then
  tarflag="j"
else
  tarflag="z"
fi

if [ "$RTOOL" == "wget" ] && [ ! -f "$SRC_DIR/$SRC" ]; then
  wget "$URL" -O "$SRC_DIR/$SRC"
fi

TMP="$TMP/$PACKAGE"
rm -rf $TMP
mkdir -p $TMP
cd $TMP

tar xvf$tarflag $SRC_DIR/$SRC
cd $PACKAGE-$VERSION

if [ -f "$CWD/$PACKAGE-$VERSION.diff" ]; then
  patch -p1 < $CWD/$PACKAGE-$VERSION.diff
fi

./configure --prefix=/usr --sysconfdir=/etc --libdir=$LIBDIR --enable-shared 
make || exit 32
make DESTDIR=$TMP/package-$PACKAGE install

./configure --prefix=/usr --sysconfdir=/etc --libdir=$LIBDIR --enable-shared --enable-float
make || exit 32
make DESTDIR=$TMP/package-$PACKAGE install

CWD="`pwd`"

cd $TMP/package-$PACKAGE

find . | xargs file | grep "executable" | grep ELF | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null
find . | xargs file | grep "shared object" | grep ELF | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null

mkdir install
cat << EOF > install/slack-desc
# HOW TO EDIT THIS FILE:
# The "handy ruler" below makes it easier to edit a package description.  Line
# up the first '|' above the ':' following the base package name, and the '|'
# on the right side marks the last column you can put a character in.  You must
# make exactly 11 lines for the formatting to be correct.  It's also
# customary to leave one space after the ':'.

     |-----handy-ruler-----------------------------------------------------|
fftw: fftw (the fastest fourier transform in the west)
fftw:
fftw: FFTW is a C subroutine library for computing the discrete Fourier
fftw: transform (DFT) in one or more dimensions, of arbitrary input size,
fftw: and of both real and complex data (as well as of even/odd data, i.e.
fftw: the discrete cosine/sine transforms or DCT/DST). We believe that FFTW,
fftw: which is free software, should become the FFT library of choice for
fftw: most applications.
fftw:
fftw:
fftw:
EOF

# docs
mkdir -p usr/doc/$PACKAGE-$VERSION

for file in AUTHORS CONVENTIONS COPYING COPYRIGHT ChangeLog INSTALL NEWS README TODO; do
  cp $CWD/$file* usr/doc/$PACKAGE-$VERSION/
done

makepkg -c y -l y $REPOS/$PACKAGE-$VERSION-$ARCH-$BUILD.tgz

if [ "$CLEANUP" == "yes" ]; then
  rm -rf $TMP
fi