#!/bin/sh
# Built on TCL v3.3
# Required extensions:
#	compiletc
#	 binutils
#	 base-dev
#	 bison
#	 diffutils
#	 file
#	 findutils
#	 flex
#	 gawk
#	 gcc
#	  gcc_libs
#	  cloog
#	   ppl
#	    gmp
#	  mpfr
#	 gperf
#	 grep
#	 m4
#	 make
#	 patch
#	 pkg-config
#	 sed
#	squashfs-tools-4.x
#	tar
#	gfortran

getTime.sh

installExtension() {
	if [ ! -e /usr/local/tce.installed/$1 ]; then
		echo "Installing "$1" ..."
		
		if [ -e $TCEDIR/optional/$1.tcz ]; then
			tce-load -i $1
		else
			tce-load -wi $1
		fi
		
		[ ! -e /usr/local/tce.installed/$1 ] && echo "Error: Extension "$1" not installed! Aborting" && exit
	fi
}

# Install these extensions automagically
export EXTS="compiletc
squashfs-tools-4.x
tar
gfortran"

export TCEDIR=`cat /opt/.tce_dir`
export CFLAGS="-march=i486 -mtune=i686 -Os -pipe"
export CXXFLAGS=$CFLAGS" -fno-exceptions -fno-rtti"
export PKG_CONFIG_PATH=/usr/local/lib/pkgconfig:/usr/lib/pkgconfig
export EXTNAME="liblapack"
export VER="-3.3.0"
export DESTDIR=`pwd`/$EXTNAME
export PKGNAME="lapack"

for f in $EXTS; do
	installExtension $f
done

#unpack source
if [ -e $PKGNAME.tar.bz2 ]; then
	tar -jxf $PKGNAME.tar.bz2
elif [ -e $PKGNAME.tb2 ]; then
	tar -jxf $PKGNAME.tb2
elif [ -e $PKGNAME.tbz ]; then
	tar -jxf $PKGNAME.tbz
elif [ -e $PKGNAME.tar.gz ]; then
	tar -zxf $PKGNAME.tar.gz
elif [ -e $PKGNAME.tgz ]; then
	tar -zxf $PKGNAME.tgz
elif [ -e $PKGNAME.tar.xz ]; then
	tar -Jxf $PKGNAME.tar.xz
elif [ -e $PKGNAME.txz ]; then
	tar -Jxf $PKGNAME.txz
elif [ -e $PKGNAME.tar.lzma ]; then
	tar -xf $PKGNAME.tar.lzma --lzma
elif [ -e $PKGNAME.tlz ]; then
	tar -xf $PKGNAME.tlz --lzma
else
	echo "Source tarball not found! Aborting" && exit
fi

mkdir -p $DESTDIR/usr/local/lib/lapack $DESTDIR/usr/local/share/doc/License

cd $PKGNAME$VER

cp INSTALL/make.inc.gfortran make.inc

sed -i "s!-O2!$CFLAGS!" make.inc

# doesn't find gcc libs workaround
sudo ln -s /usr/local/lib/gcc /usr/lib

make blaslib && make || exit

cp lapack_LINUX.a $DESTDIR/usr/local/lib/lapack/liblapack.a
cp blas_LINUX.a $DESTDIR/usr/local/lib/lapack/librefblas.a
cp tmglib_LINUX.a $DESTDIR/usr/local/lib/lapack/libtmglib.a
cp LICENSE $DESTDIR/usr/local/share/doc/License/$EXTNAME.txt

cd $DESTDIR

sudo strip -g usr/local/lib/lapack/*

find usr -not -type d > ../$EXTNAME.tcz.list

cd ..

mksquashfs $EXTNAME $EXTNAME.tcz -noappend
md5sum $EXTNAME.tcz > $EXTNAME.tcz.md5.txt

rm -rf $EXTNAME $PKGNAME$VER