#!/bin/bash
#
# slackbuild script for libgc
# by rafael at riseup.net
#

if [ -s "slack-required" ]; then
  echo Recomended and required packages for building libgc are:
  cat slack-required | sed -e 's/^/\t/'
  if [ "$INTERACT" != "no" ]; then
    echo If you dont have those installed, press Ctrl-C. Otherwise, hit ENTER.
    read crap
  else
    echo Sleeping 3 seconds...
    sleep 3
  fi
fi

CWD="`pwd`"

if [ -f ~/.slackbuildrc ]; then
  source ~/.slackbuildrc
elif [ -f /etc/slackbuildrc ]; then
  source /etc/slackbuildrc
fi

# default settings
PACKAGE="gc"
ARCH=${ARCH:=i486}
VERSION=${VERSION:=6.8}
BUILD=${BUILD:=1rd}
SRC_DIR=${SRC:=$CWD}
TMP=${TMP:=/tmp}
REPOS=${REPOS:=$TMP}

if [ "$ARCH" == "x86_64" ]; then
  LIBDIR=/usr/lib64
else
  LIBDIR=/usr/lib
fi

RTOOL="wget"
PACKAGE_EXT="gz"
SRC="$PACKAGE$VERSION.tar.$PACKAGE_EXT"
URL="http://www.hpl.hp.com/personal/Hans_Boehm/gc/gc_source/$SRC"

SRC_DIR="$SRC_DIR/$PACKAGE"
mkdir -p $SRC_DIR

if [ "$PACKAGE_EXT" == "bz2" ]; then
  tarflag="j"
else
  tarflag="z"
fi

if [ "$RTOOL" == "wget" ] && [ ! -f "$SRC_DIR/$SRC" ]; then
  wget "$URL" -O "$SRC_DIR/$SRC"
fi

TMP="$TMP/$PACKAGE"
rm -rf $TMP
mkdir -p $TMP
cd $TMP

tar xvf$tarflag $SRC_DIR/$SRC
cd $PACKAGE$VERSION

if [ -f "$CWD/$PACKAGE-$VERSION.diff" ]; then
  patch -p1 < $CWD/$PACKAGE-$VERSION.diff
fi

./configure --prefix=/usr --sysconfdir=/etc --libdir=$LIBDIR --with-docdir=/usr/doc/$PACKAGE-$VERSION
make || exit 32
make DESTDIR=$TMP/package-$PACKAGE install

CWD="`pwd`"

cd $TMP/package-$PACKAGE

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

mkdir install
cat << EOF > install/slack-desc
# HOW TO EDIT THIS FILE:
# The "handy ruler" below makes it easier to edit a package description.  Line
# up the first '|' above the ':' following the base package name, and the '|'
# on the right side marks the last column you can put a character in.  You must
# make exactly 11 lines for the formatting to be correct.  It's also
# customary to leave one space after the ':'.

     |-----handy-ruler-----------------------------------------------------|
libgc: libgc (libgc is portable garbage colector library)
libgc: 
libgc: The Boehm-Demers-Weiser conservative garbage collector can be used as 
libgc: a garbage collecting replacement for C malloc or C++ new. It allows 
libgc: you to allocate memory basically as you normally would, without 
libgc: explicitly deallocating memory that is no longer useful. The 
libgc: collector automatically recycles memory when it determines that it 
libgc: can no longer be otherwise accessed.
libgc: 
libgc: http://www.hpl.hp.com/personal/Hans_Boehm/gc/
libgc: 
EOF

# docs
mkdir -p usr/doc/$PACKAGE-$VERSION

for file in README;do
  cp $CWD/$file* usr/doc/$PACKAGE-$VERSION/
done

makepkg -c y -l y $REPOS/lib$PACKAGE-$VERSION-$ARCH-$BUILD.tgz

if [ "$CLEANUP" == "yes" ]; then
  rm -rf $TMP
fi