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.

cd $(dirname $0) ; CWD=$(pwd)

PKGNAM=cmake
VERSION=${VERSION:-$(echo $PKGNAM-*.tar.?z | rev | cut -f 3- -d . | cut -f 1 -d - | rev)}
BUILD=${BUILD:-1}

# Automatically determine the architecture we're building on:
if [ -z "$ARCH" ]; then
  case "$( uname -m )" in
    i?86) export ARCH=i686 ;;
    arm*) export ARCH=arm ;;
    # Unless $ARCH is already set, use uname -m for all other archs:
       *) export ARCH=$( uname -m ) ;;
  esac
fi

# If the variable PRINT_PACKAGE_NAME is set, then this script will report what
# the name of the created package would be, and then exit. This information
# could be useful to other scripts.
if [ ! -z "${PRINT_PACKAGE_NAME}" ]; then
  echo "$PKGNAM-$VERSION-$ARCH-$BUILD.txz"
  exit 0
fi

NUMJOBS=${NUMJOBS:-" -j$(expr $(nproc) + 1) "}

if [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O2 -march=pentium4 -mtune=generic"
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -march=x86-64 -mtune=generic -fPIC"
else
  SLKCFLAGS="-O2"
fi

TMP=${TMP:-/tmp}
PKG=$TMP/package-$PKGNAM

rm -rf $PKG
mkdir -p $TMP $PKG

cd $TMP
rm -rf $PKGNAM-$VERSION
echo "Extracting $CWD/$PKGNAM-$VERSION.tar.?z..."
tar xf $CWD/$PKGNAM-$VERSION.tar.?z || exit 1
cd $PKGNAM-$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 {} \+

mkdir cmake-build
cd cmake-build
CFLAGS="$SLKCFLAGS" \
CXXFLAGS="$SLKCFLAGS" \
  ../configure \
  --prefix=/usr \
  --docdir=/doc/$PKGNAM-$VERSION \
  --parallel=$(echo $NUMJOBS | cut -f 2 -d j | tr -d ' ') \
  --qt-gui \
  --system-curl \
  --system-expat \
  --no-system-jsoncpp \
  --sphinx-man \
  --system-zlib \
  --system-bzip2 \
  --system-libarchive || exit 1
#  --system-libs \

make $NUMJOBS || make || exit 1
make install DESTDIR=$PKG || exit 1

# Leave cmake-build directory...
cd ..

# If there's a ChangeLog, installing at least part of the recent history
# is useful, but don't let it get totally out of control:
if [ -r ChangeLog.txt ]; then
  DOCSDIR=$(echo $PKG/usr/doc/${PKGNAM}-$VERSION)
  cat ChangeLog.txt | head -n 1000 > $DOCSDIR/ChangeLog.txt
  touch -r ChangeLog.txt $DOCSDIR/ChangeLog.txt
fi

# How many redundant docs do we need?
# If you really require the