#!/bin/sh
# Set initial variables:
set -e

CWD=`pwd`
if [ "$TMP" = "" ]; then
  TMP=/tmp
fi

VERSION=2.2.0
ARCH=${ARCH:-x86_64}
BUILD=${BUILD:-1}

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

PKG=$TMP/package-mpfr
rm -rf $PKG
mkdir -p $PKG

# Determine patchlevel:
PATCHLEVEL=$(/bin/ls $CWD/patches/* 2> /dev/null | rev | cut -f 1 -d / | cut -b4- | rev | cut -b6- | tail -n 1 )
if [ "$PATCHLEVEL" = "" ]; then
  PATCHLEVEL=0
fi

cd $TMP
rm -rf mpfr-$VERSION
tar xjvf $CWD/mpfr-$VERSION.tar.bz2
cd mpfr-$VERSION
chown -R root:root .
for file in $CWD/patches/* ; do
  ( zcat $file 2> /dev/null | patch -p1 --verbose --batch || exit 1 )
  if [ ! $? = 0 ]; then
    exit 1
  fi
done
LDFLAGS="-L/usr/lib64" \
CFLAGS="$SLKCFLAGS" \
./configure \
  --prefix=/usr \
  --enable-static=yes \
  --enable-shared=yes \
	--libdir=/usr/lib64 \
  $ARCH-slackware-linux
make -j30
make install DESTDIR=$PKG
( cd $PKG
  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
)
# Hardly a savings doing this...
#strip -g $PKG/usr/lib/*.a
rm -f $PKG/usr/info/dir
gzip -9 $PKG/usr/info/*
mkdir -p $PKG/usr/doc/mpfr-$VERSION
cp -a \
  AUTHORS BUGS COPYING COPYING.LIB FAQ.html INSTALL NEWS README TODO VERSION \
  $PKG/usr/doc/mpfr-$VERSION
mkdir -p $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc

cd $PKG
if [ -d usr/lib64/pkgconfig ]; then
	mkdir -p usr/lib; mv usr/lib64/pkgconfig usr/lib
fi
makepkg -l y -c n $TMP/mpfr-${VERSION}p${PATCHLEVEL}-${ARCH}-${BUILD}.tgz