#!/bin/bash

# Slackware build script for ppp 

# Copyright 2025 Frank Honolka <info.snukware@gmail.com>
# 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.

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

PRGNAM=ppp			
VERSION=${VERSION:-2.5.3}	
BUILD=${BUILD:-1}
TAG=${TAG:-_snuk}	
PKGTYPE=${PKGTYPE:-txz}

# Automatically determine the architecture we're building on:
if [ -z "$ARCH" ]; then
  case "$( uname -m )" in
    i?86) ARCH=i586 ;;
    arm*) ARCH=arm ;;
    # Unless $ARCH is already set, use uname -m for all other archs:
       *) ARCH=$( 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 "${PRINT_PACKAGE_NAME}" ]; then
  echo "$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE"
  exit 0
fi

TMP=${TMP:-/var/cache/snukware/tmp}	
PKG=$TMP/package-$PRGNAM
OUTPUT=${OUTPUT:-/var/cache/snukware/n}	

if [ "$ARCH" = "i586" ]; then
  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O2 -march=i686 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
  LIBDIRSUFFIX="64"
elif [ "$ARCH" = "aarch64" ]; then
  SLKCFLAGS="-O2 -fPIC"
  LIBDIRSUFFIX="64"
else
  SLKCFLAGS="-O2"
  LIBDIRSUFFIX=""
fi

set -e 

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf $PRGNAM-$VERSION
tar xvf $CWD/$PRGNAM-$VERSION.tar.?z
cd $PRGNAM-$VERSION
#zcat $CWD/ppp-2.5.1-gcc15.patch.gz | patch -p1 --verbose || exit 1
autoreconf -i
chown -R root:root .
find -L . \
 \( -perm 777 -o -perm 775 -o -perm 750 -o -perm 711 -o -perm 555 \
  -o -perm 511 \) -exec chmod 755 {} \; -o \
 \( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
  -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;

# GCC15 workaround:
SLKCFLAGS+=" -std=gnu17"

CFLAGS="$SLKCFLAGS" \
CXXFLAGS="$SLKCFLAGS" \
./configure \
  --prefix=/usr \
  --sbindir=/usr/bin \
  --runstatedir=/run \
  --libdir=/usr/lib${LIBDIRSUFFIX} \
  --sysconfdir=/etc \
  --enable-systemd \
  --runstatedir=/run \
  --enable-cbcp \
  --enable-multilink \
  --mandir=/usr/man \
  --docdir=/usr/doc/$PRGNAM-$VERSION \
  --disable-static \
  --build=$ARCH-slackware-linux

make
make install DESTDIR=$PKG

install -Dm644 $CWD/files/options -t "$PKG"/etc/ppp/ || exit 1
install -Dm755 $CWD/files/ip-{up,down} -t "$PKG"/etc/ppp/ || exit 1
install -Dm755 $CWD/files/ip-up.d.dns.sh "$PKG"/etc/ppp/ip-up.d/00-dns.sh || exit 1
install -Dm755 $CWD/files/ip-down.d.dns.sh "$PKG"/etc/ppp/ip-down.d/00-dns.sh || exit 1
install -Dm755 $CWD/files/ipv6-{up,down} -t "$PKG"/etc/ppp/ || exit 1
install -dm755 "$PKG"/etc/ppp/ipv6-up.d || exit 1
install -dm755 "$PKG"/etc/ppp/ipv6-down.d || exit 1
install -m755 $CWD/files/ipv6-up.d.iface-config.sh "$PKG"/etc/ppp/ipv6-up.d/00-iface-config.sh || exit 1

install -Dm755 scripts/{pon,poff,plog,lcp_rtt_dump,lcp_rtt_exporter} -t "$PKG"/usr/bin/ || exit 1
install -Dm644 scripts/pon.1 -t "$PKG"/usr/man/man1/ || exit 1
install -dm755 "$PKG"/etc/ppp/peers || exit 1
chmod 0755 "$PKG"/usr/lib$LIBDIRSUFFIX/pppd/$VERSION/*.so || exit 1
install -Dm644 $CWD/files/ppp.systemd "$PKG"/usr/lib/systemd/system/ppp@.service || exit 1

# Don't ship .la files:
rm -f $PKG/{,usr/}lib${LIBDIRSUFFIX}/*.la

find $PKG -print0 | xargs -0 file | grep -e "executable" -e "shared object" | grep ELF \
  | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null || true

if [ -d $PKG/usr/man ]; then
find $PKG/usr/man -type f -exec gzip -9 {} \;
for i in $( find $PKG/usr/man -type l ) ; do ln -s $( readlink $i ).gz $i.gz ; rm $i ; done
fi

find $PKG -name perllocal.pod \
  -o -name ".packlist" \
  -o -name "*.bs" \
  | xargs rm -f

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
DOCS="AUTHORS ChangeLog Changes-* FAQ LICENSE* NEWS PLUGINS README*"
cp -a $DOCS $PKG/usr/doc/$PRGNAM-$VERSION
cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild

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

cd $PKG
/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE