#!/bin/sh

# Copyright 2008, 2009, 2010  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.


VERSION=${VERSION:-1.0.6}	# libusb version
USBCOMPAT=${USBCOMPAT:-0.1.3}	# libusb-compat version

BUILD=${BUILD:-1}

NUMJOBS=${NUMJOBS:--j6}

# Automatically determine the architecture we're building on:
if [ -z "$ARCH" ]; then
  case "$( uname -m )" in
    i?86) export ARCH=i486 ;;
    arm*) export ARCH=arm ;;
    # Unless $ARCH is already set, use uname -m for all other archs:
       *) export ARCH=$( uname -m ) ;;
  esac
fi

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

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="64"
else
  SLKCFLAGS="-O2"
  LIBDIRSUFFIX=""
fi

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

# First we'll do the main libusb stuff
cd $TMP
rm -rf libusb-$VERSION
tar xvf $CWD/libusb-$VERSION.tar.bz2
cd libusb-$VERSION
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 {} \;

CFLAGS="$SLKCFLAGS" \
./configure \
  --prefix=/usr \
  --libdir=/usr/lib${LIBDIRSUFFIX} \
  --mandir=/usr/man \
  --docdir=/usr/doc/libusb-$VERSION \
  --disable-static \
  --build=$ARCH-slackware-linux

make $NUMJOBS || make || exit 1
make install DESTDIR=$PKG
if [ ! -r /usr/lib${LIBDIRSUFFIX}/pkgconfig/libusb-1.0.pc ]; then
  # We have to install this to proceed:
  make install
fi

mkdir -p $PKG/usr/doc/libusb-$VERSION
cp -a \
  AUTHORS COPYING INSTALL NEWS PORTING README THANKS TODO \
  $PKG/usr/doc/libusb-$VERSION

# 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 ]; then
  DOCSDIR=$(echo $PKG/usr/doc/libusb-$VERSION)
  cat ChangeLog | head -n 1000 > $DOCSDIR/ChangeLog
  touch -r ChangeLog $DOCSDIR/ChangeLog
fi

# Now build the libusb-compat stuff
cd $TMP
rm -rf libusb-compat-$USBCOMPAT
tar xvf $CWD/libusb-compat-$USBCOMPAT.tar.bz2
cd libusb-compat-$USBCOMPAT
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 {} \;

CFLAGS="$SLKCFLAGS" \
./configure \
  --prefix=/usr \
  --libdir=/usr/lib${LIBDIRSUFFIX} \
  --mandir=/usr/man \
  --docdir=/usr/doc/libusb-$VERSION \
  --disable-static \
  --build=$ARCH-slackware-linux

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

mkdir -p $PKG/usr/doc/libusb-$VERSION/libusb-compat-$USBCOMPAT
cp -a \
  AUTHORS COPYING INSTALL LICENSE NEWS README \
  $PKG/usr/doc/libusb-$VERSION/libusb-compat-$USBCOMPAT

# 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 ]; then
  DOCSDIR=$(echo $PKG/usr/doc/libusb-compat-$USBCOMPAT)
  cat ChangeLog | head -n 1000 > $DOCSDIR/ChangeLog
  touch -r ChangeLog $DOCSDIR/ChangeLog
fi

# Now handle the package-wide stuff
( cd $PKG
  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
)

# Compress and if needed symlink the man pages:
if [ -d $PKG/usr/man ]; then
  ( cd $PKG/usr/man
    for manpagedir in $(find . -type d -name "man*") ; do
      ( cd $manpagedir
        for eachpage in $( find . -type l -maxdepth 1) ; do
          ln -s $( readlink $eachpage ).gz $eachpage.gz
          rm $eachpage
        done
        gzip -9 *.?
      )
    done
  )
fi

mkdir -p $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc

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