#!/bin/sh
# $Id$
# Copyright (c) 2008 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:        qt4
# Descr:      Qt4 graphical toolkit
# URL:        http://trolltech.com/products/qt
# Needs:      
# Changelog:  
# 4.4.1-1:    04/Aug/2008 by Eric Hameleers <alien@slackware.com>
#             * Initial build.
# 
# Run 'sh qt4.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=qt4
VERSION=${VERSION:-4.4.1}
ARCH=${ARCH:-i486}
BUILD=${BUILD:-1}
TAG=${TAG:-alien}

DOCS="GPL_EXCEPTION*.TXT INSTALL LICENSE.* OPENSOURCE-NOTICE.TXT 
      README* changes-*"

# Where do we look for sources?
SRCDIR=$(cd $(dirname $0); pwd)

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

SOURCE="$SRCDIR/qt-x11-opensource-src-${VERSION}.tar.gz"
SRCURL="http://wftp.tu-chemnitz.de/pub/Qt/qt/source/qt-x11-opensource-src-${VERSION}.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 "$ARCH" in
  i486)      SLKCFLAGS="-O2 -march=i486 -m${MOPT}=i686"
             ;;
  s390)      SLKCFLAGS="-O2"
             ;;
  powerpc)   SLKCFLAGS="-O2"
             ;;
  x86_64)    SLKCFLAGS="-O2 -fPIC"
             ;;
  athlon-xp) SLKCFLAGS="-march=athlon-xp -O3 -pipe -fomit-frame-pointer"
             ;;
esac

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

# 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
cd ${PRGNAM}-${VERSION}
chown -R root:root .
chmod -R u+w,go+r-w,a-s .

echo Building ...
export CXXFLAGS="$SLKCFLAGS"
export CFLAGS="$SLKCFLAGS"
export OPENSOURCE_CXXFLAGS="$SLKCFLAGS"
echo "yes" | ./configure \
    -prefix=/usr/lib/qt-${VERSION} \
    -qt-gif \
    -fast \
    -no-exceptions \
    -system-libpng \
    -system-libjpeg \
    -system-zlib \
    -dbus \
    -webkit \
    -no-phonon \
    -nomake examples \
    -nomake demos \
    2>&1 | tee $OUTPUT/configure-${PRGNAM}.log
make 2>&1 | tee $OUTPUT/make-${PRGNAM}.log

# Install all the needed stuff to the package dir
# Use installwatch if available, to produce a logfile of the installation
# process that is more easily readable:
if $(which installwatch > /dev/null 2>&1); then
  installwatch -o $OUTPUT/install-${PRGNAM}.log make INSTALL_ROOT=$PKG install
else
  make INSTALL_ROOT=$PKG install 2>&1 |tee $OUTPUT/install-${PRGNAM}.log
fi

( cd $PKG/usr/lib
  ln -sf qt-${VERSION} qt4
)

# Ensure that the various qt4 binaries are found by cmake:
mkdir -p $PKG/usr/bin
( cd $PKG/usr/bin
  for file in assistant assistant_adp designer linguist lrelease lupdate \
              moc pixeltool qcollectiongenerator qdbus qdbuscpp2xml \
              qdbusviewer qdbusxml2cpp qhelpconverter qhelpgenerator qmake \
              qt3to4 qtconfig rcc uic uic3 xmlpatterns;
  do
    ln -sf /usr/lib/qt-${VERSION}/bin/${file} ${file}-qt4 ;
  done
)

# Likewise for the pkg-config files:
mkdir -p $PKG/usr/lib/pkgconfig
( cd $PKG/usr/lib/pkgconfig
  for file in Qt3Support.pc QtAssistantClient.pc QtCore.pc \
              QtDBus.pc QtGui.pc QtNetwork.pc QtOpenGL.pc QtScript.pc \
              QtSql.pc QtSvg.pc QtTest.pc QtUiTools.pc QtXml.pc ; 
  do
    ln -sf /usr/lib/qt-$VERSION/lib/pkgconfig/$file . ;
  done
)

# Add documentation:
mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cp -a $DOCS $PKG/usr/doc/$PRGNAM-$VERSION || true
cp -a $SRCDIR/$(basename $0) $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild
( cd $PKG/usr/doc/$PRGNAM-$VERSION ; ln -sf /usr/lib/qt-$VERSION/doc/html . )
chown -R root:root $PKG/usr/doc/$PRGNAM-$VERSION
find $PKG/usr/doc -type f -exec chmod 644 {} \;

# 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

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

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