#!/bin/sh

# Slackware build script for CHOLMOD
# Written by Kyle Guinn <elyk03@gmail.com>

PRGNAM=CHOLMOD
VERSION=${VERSION:-1.7.3}
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}

if [ -z "$ARCH" ]; then
  case "$(uname -m)" in
    i?86) ARCH=i486 ;;
    arm*) ARCH=arm ;;
       *) ARCH=$(uname -m) ;;
  esac
fi

CWD=$(pwd)
TMP=${TMP:-/tmp/SBo}
PKG=$TMP/package-$PRGNAM
OUTPUT=${OUTPUT:-/tmp}

DOCS="README.txt Doc/ChangeLog Core/lesser.txt Modify/gpl.txt"
MODULE_DOCS="Core/License.txt Check/License.txt Cholesky/License.txt Partition/License.txt MatrixOps/License.txt Modify/License.txt Supernodal/License.txt"

if [ "$ARCH" = "i486" ]; then
  SLKCFLAGS="-O2 -march=i486 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O2 -march=i686 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
  LIBDIRSUFFIX="64"
else
  SLKCFLAGS="-O2"
  LIBDIRSUFFIX=""
fi

# Recommended by SuiteSparse
SLKCFLAGS="$SLKCFLAGS -fexceptions -D_FILE_OFFSET_BITS=64 -D_LARGEFILE64_SOURCE"

set -e

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf $PRGNAM
tar xvf $CWD/$PRGNAM-$VERSION.tar.gz
cd $PRGNAM
chown -R root:root .
chmod -R u+w,go+r-w,a-st .

patch -p1 < $CWD/autotoolize.diff
if [ -e Include/cholmod_config.h ]; then
  # patch can't handle git-diff renames
  mv Include/cholmod_config.h Include/cholmod_config.h.in
fi
autoreconf -vif

CFLAGS="$SLKCFLAGS" \
FFLAGS="$SLKCFLAGS" \
./configure \
  --prefix=/usr \
  --libdir=/usr/lib${LIBDIRSUFFIX} \
  --sysconfdir=/etc \
  --localstatedir=/var \
  --mandir=/usr/man \
  --infodir=/usr/info \
  --docdir=/usr/doc/$PRGNAM-$VERSION \
  --enable-shared \
  --disable-static \
  --build=$ARCH-slackware-linux

make
make install-strip DESTDIR=$PKG

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cp -a $DOCS $PKG/usr/doc/$PRGNAM-$VERSION
for i in $MODULE_DOCS; do
  cp -a $i $PKG/usr/doc/$PRGNAM-$VERSION/$(echo $i | tr / _)
done
cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild

mkdir -p $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc

cd $PKG
/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.${PKGTYPE:-tgz}