#!/bin/sh

# Copyright 2006, 2007, 2008, 2009  Patrick J. Volkerding, Sebeka, MN, USA
# All rights reserved.
#
# Redistribution and use of this script, with or without modification, is
# permitted provided that the following conditions are met:
#
# 1. Redistributions of this script must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
#
#  THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS 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 AUTHOR 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.

# Merged some ideas from Alex Sarmardzic's script for qt4 at SlackBuilds.org
# ^^ Modified by Robby Workman <rworkman@slackware.com> for QT4 & KDE4

# We're using qt-copy instead of a released qt version, as this svn release
# has at least one bugfix strongly recommended by the kde developers

PKGNAM=qt
VERSION=$(ls qt-r*.tar.?z* | cut -d - -f 2 | cut -f 1 -d . | tail -1)
ARCH=${ARCH:-x86_64}
TARGET=${TARGET:-i486}
BUILD=${BUILD:-1_slamd64}

NUMJOBS=${NUMJOBS:--j7}

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

export CC="gcc -m32"
export CXX="g++ -m32"

CWD=$(pwd)
TMP=${TMP:-/tmp}
PKG=$TMP/package-${PKGNAM}-compat32

rm -rf $PKG
mkdir -p $TMP $PKG
cd $TMP
#rm -rf qt-x11-opensource-src-$VERSION
#tar xvf $CWD/qt-x11-opensource-src-$VERSION.tar.gz     # For qt releases
#cd qt-x11-opensource-src-$VERSION || exit 1

rm -rf qt-$VERSION
if [ -r $CWD/qt-$VERSION.tar.gz ]; then
  tar xvf $CWD/qt-$VERSION.tar.gz || exit 1
elif [ -r $CWD/qt-$VERSION.tar.bz2 ]; then
  tar xvf $CWD/qt-$VERSION.tar.bz2 || exit 1
elif [ -r $CWD/qt-$VERSION.tar.xz ]; then
  tar xvf $CWD/qt-$VERSION.tar.xz || exit 1
elif [ -r $CWD/qt-$VERSION.tar.lzma ]; then
  tar xvf $CWD/qt-$VERSION.tar.lzma || exit 1
else
  exit 1
fi
cd qt-$VERSION || exit 1

chown -R root:root .
find . \
 \( -perm 777 -o -perm 775 -o -perm 711 -o -perm 555 -o -perm 511 \) \
 -exec chmod 755 {} \; -o \
 \( -perm 666 -o -perm 664 -o -perm 600 -o -perm 444 -o -perm 440 -o -perm 400 \) \
 -exec chmod 644 {} \;

# Just skip the patches it complains about...  easy enough.
## Get rid of already applied patches (if any):
#if [ -r $CWD/remove-already-applied-patches.diff.gz ]; then
#  zcat $CWD/remove-already-applied-patches.diff.gz | patch -p1 --verbose || exit 1
#fi

# This is only needed/wanted for qt-copy (the r###### version) that we're
# building right now. It might require manual intervention, so don't walk
# away during the build
./apply_patches

if [ $ARCH = "i486" ]; then
  zcat $CWD/qt.x86.cflags.diff.gz | patch -p1 || exit 1
fi

# Fix path to mysql header
zcat $CWD/qt.mysql.h.diff.gz | patch -p1 || exit 1

# The "yes" agrees to the GPL, so don't run this script if you don't agree. :-)
export CFLAGS="$SLKCFLAGS"
export CXXFLAGS="$SLKCFLAGS"
export OPENSOURCE_CXXFLAGS="$SLKCFLAGS"
echo "o
yes" | linux32 ./configure \
  -prefix /usr/lib${LIBDIRSUFFIX}/qt \
  -qt-gif \
  -fast \
  -system-libpng \
  -system-libjpeg \
  -system-zlib \
  -dbus \
  -webkit \
  -no-phonon \
  -nomake examples \
  -nomake demos \
  -platform linux-g++-32

# Sometimes a failure happens when parallelizing make.  Try again if make fails,
# but make a failure the second time around (single threaded) a fatal error:
make $NUMJOBS || make || exit 1
make install INSTALL_ROOT=$PKG || exit 1

# The infamous qt -> qt-${VERSION} link that keeps the full path out of .la files:
( cd $PKG/usr/lib${LIBDIRSUFFIX} ; ln -sf qt qt-${VERSION} )

# Link the shared libraries into /usr/lib:
( cd $PKG/usr/lib${LIBDIRSUFFIX}
  for file in qt-$VERSION/lib/*.so* ; do
    ln -sf $file .
  done
)

if [ $ARCH = "i486" ]; then
  # Put this back as shipped:
   zcat $CWD/qt.x86.cflags.diff.gz | patch -p1 -R
fi

find $PKG | xargs file | grep -e "executable" -e "shared object" | grep ELF \
  | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null

# Add profile scripts
mkdir -p $PKG/etc/profile.d
sed -e "s#usr/lib/#usr/lib${LIBDIRSUFFIX}/#g" $CWD/profile.d/qt4.sh \
  > $PKG/etc/profile.d/qt4-compat32.sh
sed -e "s#usr/lib/#usr/lib${LIBDIRSUFFIX}/#g" $CWD/profile.d/qt4.csh \
  > $PKG/etc/profile.d/qt4-compat32.csh
chmod 0755 $PKG/etc/profile.d/*

# Put a ton of links to more "normal" places.  I'd just use a prefix of /usr, but it
# creates a ton of new (and ambiguously named) /usr directories...
mkdir -p $PKG/usr/bin/32
( cd $PKG/usr/bin/32
  for file in \
    assistant designer linguist lrelease lupdate moc pixeltool qdbus \
    qdbuscpp2xml qdbusviewer qdbusxml2cpp qmake qt3to4 qtconfig rcc uic uic3 ;
  do
    ln -sf /usr/lib${LIBDIRSUFFIX}/qt-$VERSION/bin/$file .
  done
)

mkdir -p $PKG/usr/lib${LIBDIRSUFFIX}/pkgconfig
( cd $PKG/usr/lib${LIBDIRSUFFIX}/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${LIBDIRSUFFIX}/qt-$VERSION/lib/pkgconfig/$file . ;
  done
)

# Add a documentation directory:
mkdir -p $PKG/usr/doc/$PKGNAM-$VERSION
cp -a *GPL_EXCEPTION* LICENSE* \
  $PKG/usr/doc/$PKGNAM-$VERSION

rm -rf $PKG/usr/lib${LIBDIRSUFFIX}/qt/doc

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

cd $PKG
/sbin/makepkg -l y -c n $TMP/$PKGNAM-compat32-$VERSION-$ARCH-$BUILD.txz