#!/bin/sh

# Slackware build script for par2cmdline
# Written by Thomas Morper <thomas@beingboiled.info>
# Thanks to maldoror for the previous version of this script
# Thanks to Debian, Fedora and Gentoo for patches and the man page

PRGNAM=par2cmdline
VERSION=${VERSION:-0.4}
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}

# Automatically determine the architecture we're building on:
if [ -z "$ARCH" ]; then
  case "$( uname -m )" in
    i?86) ARCH=i486 ;;
    arm*) ARCH=arm ;;
    # Unless $ARCH is already set, use uname -m for all other archs:
       *) ARCH=$( uname -m ) ;;
  esac
fi

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

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

set -e

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

# Fix wrong permissions
chmod 644 ChangeLog NEWS

# Make it work with gcc4
patch -p1 < $CWD/patches/gcc4.patch

# Fix crash in quiet mode
patch -p1 < $CWD/patches/offset.patch

# Kill warnings (and fix a PPC compilation error)
patch -p1 < $CWD/patches/letype.patch

# Kill warnings
patch -p1 < $CWD/patches/precedence.patch

CFLAGS="$SLKCFLAGS" \
CXXFLAGS="$SLKCFLAGS" \
./configure \
  --prefix=/usr \
  --libdir=/usr/lib${LIBDIRSUFFIX} \
  --sysconfdir=/etc \
  --localstatedir=/var \
  --build=$ARCH-slackware-linux

make
make check
make install-strip DESTDIR=$PKG

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cp -a AUTHORS COPYING ChangeLog INSTALL NEWS PORTING README ROADMAP \
  $PKG/usr/doc/$PRGNAM-$VERSION
cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild

# Replace the hardlinks with symlinks
cd $PKG/usr/bin
rm -f par2create; ln -s par2 par2create
rm -f par2repair; ln -s par2 par2repair
rm -f par2verify; ln -s par2 par2verify

# Install the man pages
mkdir -p $PKG/usr/man/man1
gzip -9 < $CWD/par2.1 > $PKG/usr/man/man1/par2.1.gz
cd $PKG/usr/man/man1
ln -s par2.1.gz par2create.1.gz
ln -s par2.1.gz par2repair.1.gz
ln -s par2.1.gz par2verify.1.gz

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}