#!/bin/bash

# libpcap.SlackBuild
# Heavily based on the original Slackware build scripts,
# Modified by Stuart Winter for Slackware ARM.
#
# 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.

# Record toolchain & other info for the build log:
slackbuildinfo

# Paths to skeleton port's source & real Slackware source tree:
export CWD=$SLACKSOURCE/$PKGNAM
export PORTCWD=$PWD

# Temporary build locations:
export TMPBUILD=$TMP/build-$PKGNAM
export PKG=$TMP/package-$PKGNAM
mkpkgdirs # Delete & re-create temporary directories then cd into $TMPBUILD

# Find headers:
case $ARCH in
   arm)     export SLKCFLAGS="$SLKCFLAGS -I$TMPBUILD/include"
            export LIBDIRSUFFIX="" ;;
   *)       export SLKCFLAGS="-O2" ;;
esac

# Extract source:
tar xvvf $CWD/$PKGNAM-$VERSION.tar.gz
#tar xvvf $PORTCWD/sources/$PKGNAM-$VERSION.tar.xz
cd $PKGNAM-*/ || exit 1
slackhousekeeping

# Add an older copy of the mgmt.h:
# https://bbs.archlinux.org/viewtopic.php?id=189052
mkdir -vpm755 $TMPBUILD/include/bluetooth
xz -dc $PORTCWD/sources/mgmt.h.xz > $TMPBUILD/include/bluetooth/mgmt.h || exit 1

# Configure:
# For v1.9.1 we had to explicitly tell the compiler to build for soft float, since
# otherwise libpcap is defaulting to hard float.
# If this stops working in future, add -marm too.
CFLAGS="$(getconf LFS_CFLAGS) $SLKCFLAGS -mfloat-abi=soft" \
./configure \
   --prefix=/usr \
   --libdir=/usr/lib${LIBDIRSUFFIX} \
   --mandir=/usr/man \
   --docdir=/usr/doc/libpcap-$VERSION \
   --enable-ipv6 \
   --build=${SLK_ARCH_BUILDTARGET} || failconfig

# Build:
make $NUMJOBS || make || exit 1
make shared $NUMJOBS || make || exit 1

# Install into package:
mkdir -p $PKG/usr/bin  # otherwise it errors out on install
make install DESTDIR=$PKG || exit 1

# Use symbolic links in the man pages:
( cd $PKG/usr/man/man3
  ln -sf pcap_datalink_val_to_name.3pcap pcap_datalink_val_to_description.3pcap
  ln -sf pcap_dump_open.3pcap pcap_dump_fopen.3pcap
  ln -sf pcap_geterr.3pcap pcap_perror.3pcap
  ln -sf pcap_inject.3pcap pcap_sendpacket.3pcap
  ln -sf pcap_loop.3pcap pcap_dispatch.3pcap
  ln -sf pcap_major_version.3pcap pcap_minor_version.3pcap
  ln -sf pcap_next_ex.3pcap pcap_next.3pcap
  ln -sf pcap_open_offline.3pcap pcap_fopen_offline.3pcap
  ln -sf pcap_setnonblock.3pcap pcap_getnonblock.3pcap
  ln -sf pcap_findalldevs.3pcap pcap_freealldevs.3pcap
  ln -sf pcap_free_tstamp_types.3pcap pcap_list_tstamp_types.3pcap
  ln -sf pcap_free_datalinks.3pcap pcap_list_datalinks.3pcap
)

# Copy docs:
mkdir -p $PKG/usr/doc/libpcap-$VERSION
cp -a \
  CHANGES CREDITS INSTALL.txt LICENSE README* TODO VERSION \
  $PKG/usr/doc/libpcap-$VERSION

# Apply generic Slackware packaging policies:
cd $PKG
slackstripall   # strip all .a archives and all ELFs
slackgzpages -i # compress man & info pages and delete usr/info/dir
slackslack      # chown -R root:root, chmod -R og-w, slackchown, slack644docs
slackdesc       # install slack-desc and doinst.sh
slackmp         # run makepkg -l y -c n

# Perform any final checks on the package:
cd $PKG
slackhlinks     # search for any hard links

# Apparently, building tcpdump can barf if it finds the libpcap sources
# so we'll wipe these:
rm -rf $TMPBUILD