#!/bin/sh
# Heavily based on the Slackware 12.2 SlackBuild
# http://www.cise.ufl.edu/research/sparse/SuiteSparse/
# Packager Michelino Chionchio - www.slacky.eu

CWD=`pwd`
TMP=${TMP:-/tmp/tgz}
PKG=$TMP/package-suitesparse
NAME=suitesparse
VERSION=3.1.0
CHOST=i486
ARCH=${ARCH:-i486}
BUILD=3mch
METIS=metis
METISVERSION=4.0

SOURCE=http://www.cise.ufl.edu/research/sparse/SuiteSparse/SuiteSparse-$VERSION.tar.gz
SOURCEMETIS=http://glaros.dtc.umn.edu/gkhome/fetch/sw/metis/$METIS-$METISVERSION.tar.gz

if [ ! -e SuiteSparse-$VERSION.tar.gz ]; then
wget -c $SOURCE
fi

if [ ! -e $METIS-$METISVERSION.tar.gz ]; then
wget -c $SOURCEMETIS
fi

if [ "$ARCH" = "i386" ]; then
  SLKCFLAGS="-O2 -march=i386 -mcpu=i686"
elif [ "$ARCH" = "i486" ]; then
  SLKCFLAGS="-O2 -march=i486 -mtune=i686"
elif [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O2"
elif [ "$ARCH" = "s390" ]; then
  SLKCFLAGS="-O2"
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2"
fi


if [ ! -d $TMP ]; then
 mkdir -p $TMP
fi
if [ ! -d $PKG ]; then
 mkdir -p $PKG
fi

cd $TMP

tar zxvf $CWD/SuiteSparse-$VERSION.tar.gz
cd SuiteSparse/UFconfig
sed -i s/"CFLAGS = -O"/"CFLAGS = $SLKCFLAGS -fPIC -fexceptions -D_FILE_OFFSET_BITS=64 -D_LARGEFILE64_SOURCE"/ UFconfig.mk
sed -i s/"-D_LARGEFILE64_SOURCE3"/"-D_LARGEFILE64_SOURCE"/ UFconfig.mk
sed -i s/"F77FLAGS = -O"/"F77FLAGS = $SLKCFLAGS"/ UFconfig.mk
sed -i s/'CHOLMOD_CONFIG ='/'CHOLMOD_CONFIG = -DNPARTITION'/ UFconfig.mk
sed -i s/'METIS = ..\/..\/metis-4.0\/libmetis.a'/'METIS = '/ UFconfig.mk
sed -i s/'METIS_PATH = ..\/..\/metis-4.0'/'METIS_PATH = '/ UFconfig.mk
cd ..

tar zxvf $CWD/$METIS-$METISVERSION.tar.gz
cd $METIS-$METISVERSION
sed -i s/"-O2"/"$SLKCFLAGS"/ Makefile.in
make || exit 1

mkdir -p $PKG/usr/bin
cp -a graphchk kmetis mesh2dual mesh2nodal oemetis onmetis partdmesh partnmesh pmetis $PKG/usr/bin


cd ..
make || exit 1

# Build shared library
AMDV=2.2
AMDM=2
cd AMD/Lib
gcc -shared -Wl,-soname,libamd.so.${AMDM} -o libamd.so.${AMDV} `ls *.o`
cd ../../

BTFV=1.0
BTFM=1
cd BTF/Lib
gcc -shared -Wl,-soname,libbtf.so.${BTFM} -o libbtf.so.${BTFV} `ls *.o`
cd ../../

CAMDV=2.2
CAMDM=2
cd CAMD/Lib
gcc -shared -Wl,-soname,libcamd.so.${CAMDM} -o libcamd.so.${CAMDV} `ls *.o`
cd ../../

CCOLAMDV=2.7
CCOLAMDM=2
cd CCOLAMD/Lib
gcc -shared -Wl,-soname,libccolamd.so.${CCOLAMDM} -o libccolamd.so.${CCOLAMDV} `ls *.o`
cd ../../

CHOLMODV=1.6
CHOLMODM=1
cd CHOLMOD/Lib
gcc -shared -Wl,-soname,libcholmod.so.${CHOLMODM} -o libcholmod.so.${CHOLMODV} `ls *.o`
cd ../../

COLAMDV=2.7
COLAMDM=2
cd COLAMD/Lib
gcc -shared -Wl,-soname,libcolamd.so.${COLAMDM} -o libcolamd.so.${COLAMDV} `ls *.o`
cd ../../

CSparseV=2.2.0
CSparseM=2
cd CSparse/Lib
gcc -shared -Wl,-soname,libcsparse.so.${CSparseM} -o libcsparse.so.${CSparseV} `ls *.o`
cd ../../

CXSparseV=2.2.0
CXSparseM=2
cd CXSparse/Lib
gcc -shared -Wl,-soname,libcxsparse.so.${CXSparseM} -o libcxsparse.so.${CXSparseV} `ls *.o`
cd ../../

KLUV=1.0
KLUM=1
cd KLU/Lib
gcc -shared -Wl,-soname,libklu.so.${KLUM} -o libklu.so.${KLUV} `ls *.o`
cd ../../

LDLV=2.0
LDLM=2
cd LDL/Lib
gcc -shared -Wl,-soname,libldl.so.${LDLM} -o libldl.so.${LDLV} `ls *.o`
cd ../../

UMFPACKV=5.0.2
UMFPACKM=5
cd UMFPACK/Lib
gcc -shared -Wl,-soname,libumfpack.so.${UMFPACKM} -o libumfpack.so.${UMFPACKV} `ls *.o` -lblas -lm
cd ../../

# Done !

mkdir -p $PKG/usr/doc/$NAME-$VERSION
for i in AMD/ CAMD/ CHOLMOD/ LDL/ UFcollection/ BTF/ CCOLAMD/ COLAMD/ CSparse/ CXSparse/ KLU/ RBio/ UMFPACK/;
    do mkdir -p $PKG/usr/doc/$NAME-$VERSION/$i && cp -a $i/Doc/* $i/README.txt $PKG/usr/doc/$NAME-$VERSION/$i; done
cp -a README.txt $PKG/usr/doc/$NAME-$VERSION
rm $PKG/usr/doc/$NAME-$VERSION/*/Makefile
mkdir -p $PKG/usr/doc/$METIS-$METISVERSION.1
cp -a $METIS-$METISVERSION/Doc/* $METIS-$METISVERSION/{CHANGES,FILES,INSTALL,VERSION} $PKG/usr/doc/$METIS-$METISVERSION.1

mkdir -p $PKG/usr/lib/
for i in AMD/ CAMD/ CHOLMOD/ LDL/ BTF/ CCOLAMD/ COLAMD/ CSparse/ CXSparse/ KLU/ UMFPACK/;
    do cp -a $i/Lib/{*.a,*.so.*} $PKG/usr/lib/; done
cp -a $METIS-$METISVERSION/*.a $PKG/usr/lib/

mkdir -p $PKG/usr/include/$NAME
for i in AMD/ CAMD/ CHOLMOD/ LDL/ BTF/ CCOLAMD/ COLAMD/ CXSparse/ KLU/ UMFPACK/;
    do cp -a $i/Include/*.h $PKG/usr/include/$NAME; done
cp -a UFconfig/*.h $PKG/usr/include/$NAME
cp -a $METIS-$METISVERSION/Lib/*.h $PKG/usr/include/$NAME

cd $PKG/usr/include/
ln -s ./suitesparse ./umfpack


cd $PKG/usr/doc/$NAME-$VERSION
for I in *; do mv $I $(echo $I | tr '[A-Z]' '[a-z]'); done

cd $PKG/usr/lib
ln -sf libamd.so.${AMDV} libamd.so.${AMDM}
ln -sf libamd.so.${AMDV} libamd.so
ln -sf libbtf.so.${BTFV} libbtf.so.${BTFM}
ln -sf libbtf.so.${BTFV} libbtf.so
ln -sf libcamd.so.${CAMDV} libcamd.so.${CAMDM}
ln -sf libcamd.so.${CAMDV} libcamd.so
ln -sf libccolamd.so.${CCOLAMDV} libccolamd.so.${CCOLAMDM}
ln -sf libccolamd.so.${CCOLAMDM} libccolamd.so
ln -sf libcholmod.so.${CHOLMODV} libcholmod.so.${CHOLMODM}
ln -sf libcholmod.so.${CHOLMODV} libcholmod.so
ln -sf libcolamd.so.${COLAMDV} libcolamd.so.${COLAMDM}
ln -sf libcolamd.so.${COLAMDV} libcolamd.so
ln -sf libcsparse.so.${CSparseV} libcsparse.so.${CSparseM}
ln -sf libcsparse.so.${CSparseV} libcsparse.so
ln -sf libcxsparse.so.${CXSparseV} libcxsparse.so.${CXSparseM}
ln -sf libcxsparse.so.${CXSparseV} libcxsparse.so
ln -sf libklu.so.${KLUV} libklu.so.${KLUM}
ln -sf libklu.so.${KLUV} libklu.so
ln -sf libldl.so.${LDLV} libldl.so.${LDLM}
ln -sf libldl.so.${LDLV} libldl.so
ln -sf libumfpack.so.${UMFPACKV} libumfpack.so.${UMFPACKM}
ln -sf libumfpack.so.${UMFPACKV} libumfpack.so

cd $PKG

find . -perm 777 -exec chmod 755 {} \;
find . -perm 775 -exec chmod 755 {} \;
find . -perm 555 -exec chmod 755 {} \;
find . -perm 666 -exec chmod 644 {} \;
find . -perm 664 -exec chmod 644 {} \;
find . -perm 444 -exec chmod 644 {} \;

chown -R root:root .

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 -p $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc
cat $CWD/slack-desc > $PKG/usr/doc/$NAME-$VERSION/slack-desc
cat $CWD/$NAME.SlackBuild > $PKG/usr/doc/$NAME-$VERSION/$NAME.SlackBuild

requiredbuilder -v -y -s $CWD $PKG
makepkg -l y -c n $CWD/../$NAME-$VERSION-$ARCH-$BUILD.tgz

if [ "$1" = "--cleanup" ]; then
 rm -rf $TMP
fi