#!/bin/sh
# $Id: boost-compat.SlackBuild,v 1.26 2024/12/13 11:48:43 root Exp root $
# Copyright 2018, 2019, 2020, 2021, 2022, 2023, 2024 Eric Hameleers, Eindhoven, NL
# 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:       boost-compat
# Descr:     boost libraries extracted from older releases.
#            Use for compatibility reasons on slackware-current,
#            after an update of boost.
# 
# -----------------------------------------------------------------------------

# Set initial variables:

PRGNAM=boost-compat
# Set the VERSION to the most recent boost package version we use:
VERSION=${VERSION:-1.87.0}
TAG=${TAG:-"alien"}
BUILD=${BUILD:-1}

# 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}

##
## --- with a little luck, you won't have to edit below this point --- ##
##

# Automatically determine the architecture we're building on:
if [ -z "$ARCH" ]; then
  case "$(uname -m)" in
    i?86) ARCH=i586 ;;
    arm*) readelf /usr/bin/file -A | egrep -q "Tag_CPU.*[4,5]" && ARCH=arm || ARCH=armv7hl ;;
    # Unless $ARCH is already set, use uname -m for all other archs:
    *) ARCH=$(uname -m) ;;
  esac
  export ARCH
fi

# Slackware switched 32-bit from i586 to i686 in 2024; we want both of those:
export PKGARCH=${ARCH/i*86/i?86}

# Set LIBDIRSUFFIX:
case "$ARCH" in
  i?86)      LIBDIRSUFFIX="" ;;
  x86_64)    LIBDIRSUFFIX="64" ;;
  armv7hl)   LIBDIRSUFFIX="" ;;
  *)         LIBDIRSUFFIX=${LIBDIRSUFFIX:-""} ;;
esac

# 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}

# 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
rm -rf $OUTPUT/{checkout,configure,make,install,error,makepkg,patch}-$PRGNAM.log
                          # remove old log files

cd $TMP/tmp-$PRGNAM
mkdir -p $PKG/usr/lib${LIBDIRSUFFIX}
echo "Extracting the libraries for $PRGNAM..."
for SOURCE in $SRCDIR/oldpkg/boost-*-$PKGARCH-*.t?z ; do
  tar -xf ${SOURCE}
  mv -i usr/lib${LIBDIRSUFFIX}/libboost*.so.* $PKG/usr/lib${LIBDIRSUFFIX}/
  rm -rf *
done
cd $PKG
chown -R root:root *
chmod -R u+w,go+r-w,a-s *

# Generate library symlinks:
cd $PKG/usr/lib${LIBDIRSUFFIX}
ldconfig -n .

# 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}.txz 2>&1 | tee $OUTPUT/makepkg-${PRGNAM}.log
cd $OUTPUT
md5sum ${PRGNAM}-${VERSION}-${ARCH}-${BUILD}${TAG}.txz > ${PRGNAM}-${VERSION}-${ARCH}-${BUILD}${TAG}.txz.md5
cd -
cat $PKG/install/slack-desc | grep "^${PRGNAM}" > $OUTPUT/${PRGNAM}-${VERSION}-${ARCH}-${BUILD}${TAG}.txt