#!/bin/bash
#
# Slackware build script for OpenBLAS
# Written by Mário Antunes (mariolpantunes@gmail.com)
#
# Modified by Niki Kovacs <info@microlinux.fr>

PRGNAM="OpenBLAS"
VERSION=${VERSION:-0.2.11}
BUILD=${BUILD:-1}
TAG=${TAG:-_microlinux}

NUMJOBS="-j$(expr $(grep -c '^processor' /proc/cpuinfo) + 1)"

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

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

if [ "$ARCH" = "x86_64" ]; then
    LIBDIRSUFFIX="64"
else
    LIBDIRSUFFIX=""
fi

set -e

DOWNLOAD="https://github.com/xianyi/$PRGNAM/archive/v$VERSION.tar.gz"

wget -c $DOWNLOAD

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP

rm -rf $PRGNAM-$VERSION
tar xvf $CWD/$PRGNAM-$VERSION.tar.gz || tar xvf $CWD/v$VERSION.tar.gz
cd $PRGNAM-$VERSION
chown -R root:root .
find -L . \
 \( -perm 777 -o -perm 775 -o -perm 750 -o -perm 711 -o -perm 555 \
  -o -perm 511 \) -exec chmod 755 {} \; -o \
 \( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
  -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;

make $NUMJOBS NO_STATIC=1
make PREFIX=$PKG/usr/ install

find $PKG -print0 | xargs -0 file | grep -e "executable" -e "shared object" | \
 grep ELF | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null || true

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cp -a README.md $PKG/usr/doc/$PRGNAM-$VERSION/REAME
cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild
find $PKG/usr/doc/$PRGNAM-$VERSION -type f -exec chmod 644 {} \;

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

## A little hack to fix the lib path
if [ "$LIBDIRSUFFIX" = "64" ]; then
    mv -v $PKG/usr/lib/ $PKG/usr/lib$LIBDIRSUFFIX/
fi

rm -Rf $PKG/usr/bin

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