#!/bin/sh
# Set initial variables:
CWD=$(pwd)

APP=ocaml-findlib
SRC=findlib
VERSION=$(ls $SRC-*.tar.?z* | sed -e 's/\.tar\..z.*//' | rev | cut -d- -f1 | rev)
MARCH=${MARCH:-native}
ARCH=${ARCH:-x86_64}
BUILD=${BUILD:-1}
TAG=${TAG:-micu}
TMP=${TMP:-/tmp}
OUTDIR=${OUTDIR:-$TMP}

LIBSUFFIX=""

if [ "$MARCH" = "i386" ]; then
  SLKCFLAGS="-O2 -march=i386 -mtune=i686"
elif [ "$MARCH" = "i486" ]; then
  SLKCFLAGS="-O2 -march=i486 -mtune=i686"
elif [ "$MARCH" = "i586" ]; then
  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
elif [ "$MARCH" = "i686" ]; then
  SLKCFLAGS="-O2 -march=i686"
elif [ "$MARCH" = "nocona" ]; then
  SLKCFLAGS="-O2 -march=nocona -mtune=generic -mmmx -msse -msse2 -msse3"
elif [ "$MARCH" = "core2" ]; then
  SLKCFLAGS="-O2 -march=core2 -mtune=core2 -mmmx -msse -msse2 -msse3"
elif [ "$MARCH" = "atom" -o "$MARCH" = "bonnell" ]; then
  SLKCFLAGS="-O2 -march=bonnell -mmmx -msse -msse2 -msse3 -mssse3 -mcx16 -msahf -mmovbe -mfxsr --param l1-cache-size=24 --param l1-cache-line-size=64 --param l2-cache-size=512 -mtune=bonnell"
elif [ "$MARCH" = "sandybridge" ]; then
  SLKCFLAGS="-O2 -march=sandybridge"
elif [ "$MARCH" = "pentium3" ]; then
  SLKCFLAGS="-O2 -march=pentium3 -mmmx -msse"
elif [ "$MARCH" = "pentium2" ]; then
  SLKCFLAGS="-O2 -march=pentium2 -mmmx"
elif [ "$MARCH" = "s390" ]; then
  SLKCFLAGS="-O2"
else
  SLKCFLAGS="-O2 -march=$MARCH"
fi

if [ "$ARCH" = "x86_64" ]; then
  LIBSUFFIX=${LIBSUFFIX:-64}
  SLKCFLAGS="$SLKCFLAGS -fPIC -m64"
fi

MAKE="make"

PKG=$TMP/package-$APP
rm -rf $PKG
mkdir -p $PKG
cd $TMP
rm -rf $SRC-$VERSION
tar xvf $CWD/$SRC-$VERSION.tar.?z* || exit 1
cd $SRC-$VERSION || exit 1
chown -R root.root .
find . -perm 444 -exec chmod 644 {} \;
find . -perm 777 -exec chmod 755 {} \;
find . -perm 666 -exec chmod 644 {} \;

CFLAGS="$SLKCFLAGS" \
CXXFLAGS="$SLKCFLAGS" \
./configure -bindir /usr/bin \
	    -mandir /usr/man \
	    -config /etc/ocaml/findlib.conf || exit 1

$MAKE all || exit 1
$MAKE opt || exit 1
make prefix=/tmp/package-ocaml-findlib install || exit 1

# Don't ship .la files:
rm -f $PKG/{,usr/}lib${LIBSUFFIX}/*.la

chown -R root.bin $PKG/usr/bin $PKG/usr/sbin

# Preserve original config file:
mv $PKG/etc/ocaml/findlib.conf $PKG/etc/ocaml/findlib.conf.new

# Remove some manpages:
rm -f $PKG/usr/man/man5/META.5 $PKG/usr/man/man5/site-lib.5
rmdir $PKG/usr/man/man3

( 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
  find . | xargs file | grep "current ar archive" | grep ELF | cut -f 1 -d : | xargs strip -g 2> /dev/null
)

# Compress and if needed symlink the man pages:
if [ -d $PKG/usr/info ]; then
  rm -f $PKG/usr/info/dir
  gzip -9 $PKG/usr/info/*
fi
if [ -d $PKG/usr/man ]; then
  ( cd $PKG/usr/man
    for manpagedir in $(find . -type d -name "man*") ; do
      ( cd $manpagedir
        for eachpage in $( find . -type l -maxdepth 1) ; do
          ln -s $( readlink $eachpage ).gz $eachpage.gz
          rm $eachpage
        done
        gzip -9 *.?
      )
    done
  )
fi

mkdir -p $PKG/usr/doc/$APP-$VERSION
cp -a INSTALL LICENSE $PKG/usr/doc/$APP-$VERSION

mkdir -p $PKG/install
[ -f $CWD/doinst.sh ] && cat $CWD/doinst.sh > $PKG/install/doinst.sh
[ -f $CWD/doinst.sh.gz ] && zcat $CWD/doinst.sh.gz > $PKG/install/doinst.sh
cat $CWD/slack-desc > $PKG/install/slack-desc

# Allow to run as non-root until now:
if [ $(id -u) -ne 0 ]; then
  echo "*** Running as non-root, skipping makepkg."
  echo "*** Package contents is in $PKG directory."
  exit 0
fi

cd $PKG
makepkg -l y -c n $OUTDIR/$APP-$VERSION-$ARCH-${BUILD}${TAG}.txz

# Clean up the extra stuff:
if [ "$1" = "--cleanup" ]; then
  rm -rf $TMP/$SRC-$VERSION
  rm -rf $PKG
fi