#!/bin/sh
# $Id: boost.SlackBuild,v 1.9 2007/12/21 20:46:24 root Exp root $
# Copyright (c) 2007 Eric Hameleers <alien@slackware.com>
# All rights reserved.
#
#   Permission to use, copy, modify, and distribute this software for
#   any purpose with or without fee is hereby granted, provided that
#   the above copyright notice and this permission notice appear in all
#   copies.
#
#   THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
#   WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
#   MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
#   IN NO EVENT SHALL THE AUTHORS AND COPYRIGHT HOLDERS AND THEIR
#   CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
#   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
#   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
#   USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
#   ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
#   OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
#   OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
#   SUCH DAMAGE.
# -----------------------------------------------------------------------------
#
# Slackware SlackBuild script 
# ===========================
# By:        Eric Hameleers <alien@slackware.com>
# For:       boost
# Descr:     collection of portable C++ source libraries
# URL:       http://www.boost.org/
# Needs:     
# Changelog:
# 1.33.1-1:  23/Dec/2006 by Eric Hameleers <alien@slackware.com>
#            * Initial build.
# 1.34.1-1:  04/Sep/2007 by Eric Hameleers <alien@slackware.com>
#            * Update, Slackware 12.0 package.
# 1.34.1-2:  21/dec/2007 by Eric Hameleers <alien@slackware.com>
#            * Apply a security fix.
# 
# Run 'sh boost.SlackBuild --cleanup' to build a Slackware package.
# The package (.tgz) plus descriptive .txt file are created in /tmp .
# Install using 'installpkg'. 
#
# -----------------------------------------------------------------------------

# Set initial variables:

PRGNAM=boost
VERSION=${VERSION:-1.34.1}
SRCVER=$(echo ${VERSION} | tr '.' '_')
ARCH=${ARCH:-i486}
BUILD=${BUILD:-2}

# This is the python we build against:
PYTHON_VERSION=$(python -c 'import sys; print sys.version[:3]')
PYTHON_FLAGS="-sPYTHON_ROOT=/usr -sPYTHON_VERSION=$PYTHON_VERSION"

DOCS="README LICENSE_1_0.txt people wiki"

# Where do we look for sources?
CWD=$(pwd)
SRCDIR=$(dirname $0)
[ "${SRCDIR:0:1}" == "." ] && SRCDIR=${CWD}/${SRCDIR}

# Place to build (TMP) package (PKG) and output (OUTPUT) the program:
TMP=${TMP:-/tmp/build}
PKG=$TMP/package-$PRGNAM
OUTPUT=${OUTPUT:-/tmp}

# Input URL: http://dl.sourceforge.net/boost/boost_1_34_1.tar.gz
SOURCE="$SRCDIR/${PRGNAM}_${SRCVER}.tar.gz"
SRCURL="http://downloads.sourceforge.net/${PRGNAM}/${PRGNAM}_${SRCVER}.tar.gz"

##
## --- with a little luck, you won't have to edit below this point --- ##
##

# Exit the script on errors:
set -e
trap 'echo "$0 FAILED at line $LINENO!" | tee $OUTPUT/error-${PRGNAM}.log' ERR
# Catch unitialized variables:
set -u
P1=${1:-1}

# Slackware 11 and up need other option (gcc > 3.3.x)
if [ $(gcc -dumpversion | tr -d  '.' |cut -c 1-2) -gt 33 ]; then
  MOPT=tune
else
  MOPT=cpu
fi

case "$ARCH" in
  i386)      SLKCFLAGS="-O2 -march=i386 -m${MOPT}=i686"
             SLKLDFLAGS=""; LIBDIRSUFFIX=""
             ;;
  i486)      SLKCFLAGS="-O2 -march=i486 -m${MOPT}=i686"
             SLKLDFLAGS=""; LIBDIRSUFFIX=""
             ;;
  s390)      SLKCFLAGS="-O2"
             SLKLDFLAGS=""; LIBDIRSUFFIX=""
             ;;
  powerpc)   SLKCFLAGS="-O2"
             SLKLDFLAGS=""; LIBDIRSUFFIX=""
             ;;
  x86_64)    SLKCFLAGS="-O2 -fPIC"
             SLKLDFLAGS="-L/usr/lib64"; LIBDIRSUFFIX="64"
             ;;
  athlon-xp) SLKCFLAGS="-march=athlon-xp -O3 -pipe -fomit-frame-pointer"
             SLKLDFLAGS=""; LIBDIRSUFFIX=""
             ;;
esac

# Create working directories:
mkdir -p $TMP/tmp-$PRGNAM # location to build the source
rm -rf $TMP/tmp-$PRGNAM/* # we remove the remnants of previous build
mkdir -p $PKG     # place for the package to be built
rm -rf $PKG/*     # We always erase old package's contents:
mkdir -p $OUTPUT  # place for the package to be saved

# Source file availability:
if ! [ -f ${SOURCE} ]; then
  if ! [ "x${SRCURL}" == "x" ]; then
    # Check if the $SRCDIR is writable at all - if not, download to $OUTPUT
    [ -w "$SRCDIR" ] || SOURCE="$OUTPUT/$(basename $SOURCE)"
    echo "Source '$(basename ${SOURCE})' not available yet..."
    echo "Will download file to $(dirname $SOURCE)"
    wget -nv -T 20 -O "${SOURCE}" "${SRCURL}" || true
    if [ $? -ne 0 -o ! -s "${SOURCE}" ]; then
      echo "Downloading '$(basename ${SOURCE})' failed... aborting the build."
      mv -f "${SOURCE}" "${SOURCE}".FAIL
      exit 1
    fi
  else
    echo "File '$(basename ${SOURCE})' not available... aborting the build."
    exit 1
  fi
fi

if [ "$P1" == "--download" ]; then
  echo "Download complete."
  exit 0
fi

# --- PACKAGE BUILDING ---

echo "++"
echo "|| $PRGNAM-$VERSION"
echo "++"

cd $TMP/tmp-$PRGNAM
echo "Extracting the source archive(s) for $PRGNAM..."
if $(file ${SOURCE} | grep -q ": bzip2"); then
  tar -xjvf ${SOURCE}
elif $(file ${SOURCE} | grep -q ": gzip"); then
  tar -xzvf ${SOURCE}
fi
mv ${PRGNAM}_${SRCVER} ${PRGNAM}-${VERSION}
cd ${PRGNAM}-${VERSION}
# 20071219: critical bugfix patch for 1.34.1 (fixed in 1.35):
zcat $SRCDIR/boost_1_34_1_function.patch.gz | patch -p1 \
  2>&1 | tee $OUTPUT/patch-${PRGNAM}.log
chown -R root:root .
chmod -R u+w,go+r-w,a-s .

echo Building ...
export LDFLAGS="$SLKLDFLAGS"
export CFLAGS="$SLKCFLAGS"
export CXXFLAGS="$SLKCFLAGS"

# First build bjam, the boost build system:
( cd tools/jam/src
  ./build.sh gcc 2>&1 | tee $OUTPUT/make-${PRGNAM}.log
) || exit $?
BJAM=$(find tools/jam/src/ -name bjam -a -type f)

# Create build subdirectory
mkdir obj

# Next, we build boost using bjam
echo "Building boost now..."
$BJAM \
  release \
  "-sBUILD=<optimization>speed <inlining>full <threading>single/multi" \
  "-sNO_COMPRESSION=0" "-sZLIB_INCLUDE=/usr/include" "-sZLIB_LIBPATH=/usr/lib" \
  "-sBZIP2_INCLUDE=/usr/include" "-sBZIP2_LIBPATH=/usr/lib" \
  --toolset=gcc --layout=system --builddir=obj \
  --prefix=/usr \
  $PYTHON_FLAGS \
  stage \
  2>&1 | tee -a $OUTPUT/make-${PRGNAM}.log

# And then install boost..
mkdir -p $PKG/usr/{bin,lib,include}

echo "Installing boost now..."
$BJAM \
  release \
  --toolset=gcc --layout=system --builddir=obj \
  --prefix=$PKG/usr \
  $PYTHON_FLAGS \
  install \
  2>&1 | tee $OUTPUT/install-${PRGNAM}.log

# Install the bjam binary:
cp -a $BJAM $PKG/usr/bin

## Move incorrectly installed include files
if [ -d $PKG/usr/include/${PRGNAM}_${SRCVER} ]; then
  mv $PKG/usr/include/${PRGNAM}_${SRCVER}/boost $PKG/usr/include/
  rmdir $PKG/usr/include/${PRGNAM}_${SRCVER}
fi

# Add documentation:
mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cp -a $DOCS $PKG/usr/doc/$PRGNAM-$VERSION || true
chmod -R a-w $PKG/usr/doc/$PRGNAM-$VERSION/*

# Strip binaries:
cd $PKG
find . | xargs file | grep "executable" | grep ELF | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null || true
find . | xargs file | grep "shared object" | grep ELF | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null || true
cd -

# Add a package description:
mkdir -p $PKG/install
cat $SRCDIR/slack-desc > $PKG/install/slack-desc
if [ -f $SRCDIR/doinst.sh ]; then
  cat $SRCDIR/doinst.sh >> $PKG/install/doinst.sh
fi

# Build the package:
cd $PKG
makepkg --linkadd y --chown n $OUTPUT/${PRGNAM}-${VERSION}-${ARCH}-${BUILD}.tgz 2>&1 | tee $OUTPUT/makepkg-${PRGNAM}.log
cd $OUTPUT
md5sum ${PRGNAM}-${VERSION}-${ARCH}-${BUILD}.tgz > ${PRGNAM}-${VERSION}-${ARCH}-${BUILD}.tgz.md5
cd -
cat $PKG/install/slack-desc | grep "^${PRGNAM}" > $OUTPUT/${PRGNAM}-${VERSION}-${ARCH}-${BUILD}.txt

# Clean up the extra stuff:
if [ "$P1" = "--cleanup" ]; then
  rm -rf $TMP/tmp-$PRGNAM
  rm -rf $PKG
fi