#!/bin/bash

# Slackware build script for xarchon

# Written by B. Watson (urchlay@slackware.uk)

# Licensed under the WTFPL. See http://www.wtfpl.net/txt/copying/ for details.

# 20211015 bkw: BUILD=3
# - fix build on -current.
# - new-style icon.
# - TODO: fix segfault when built with -O2. For now, the band-aid is
#   to build with -O0.

# note: xarchon plays Archon and Archon II: Adept. I can't tell if the
# Adept game is complete or correct, because I never could understand
# how to play it, even as a video-game-obsessed kid in the 1980s.

# further note, written later: no, Adept is nowhere near complete or
# playable. So I'm patching the game to remove the menu option for it.

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

PRGNAM=xarchon
VERSION=${VERSION:-0.60}
BUILD=${BUILD:-3}
TAG=${TAG:-_SBo}
PKGTYPE=${PKGTYPE:-tgz}

if [ -z "$ARCH" ]; then
  case "$( uname -m )" in
    i?86) ARCH=i586 ;;
    arm*) ARCH=arm ;;
       *) ARCH=$( uname -m ) ;;
  esac
fi

if [ ! -z "${PRINT_PACKAGE_NAME}" ]; then
  echo "$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE"
  exit 0
fi

TMP=${TMP:-/tmp/SBo}
PKG=$TMP/package-$PRGNAM
OUTPUT=${OUTPUT:-/tmp}

# 20211015 bkw: on -current, with gcc12, the damn thing segfaults
# on startup when we use -O2 (or -O1 even). Since it's only a game,
# I won't spend a lot of time worrying about it. It won't compile with
# clang++ either (not even with -std=gnu++98). The *real* fix for this
# is going to be to port xarchon to qt5. Which is beyond the scope
# of this SlackBuild, but I might take a stab at it as a standalone
# project someday.
if [ "$ARCH" = "i586" ]; then
  SLKCFLAGS="-O0 -march=i586 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O0 -march=i686 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O0 -fPIC"
  LIBDIRSUFFIX="64"
else
  SLKCFLAGS="-O0"
  LIBDIRSUFFIX=""
fi

set -e

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf $PRGNAM-$VERSION
tar xvf $CWD/$PRGNAM-$VERSION.tar.gz
cd $PRGNAM-$VERSION
chown -R root:root .
find -L .  -perm /111 -a \! -perm 755 -a -exec chmod 755 {} \+ -o \
        \! -perm /111 -a \! -perm 644 -a -exec chmod 644 {} \+

# disable Adept menu option, since it's non-playable.
patch -p1 < $CWD/patches/no_adept.diff

# hammer old C++ code into building on gcc-5.3, plus autoconf fixes
# to get qt3 detected & linked properly.
patch -p1 < $CWD/patches/compilefix.diff

# theoretically xarchon can be built with gtk+-1.x, but it requires an
# ancient gtk1-compatible version of glade... plus the gtk1 stuff won't
# compile under gcc-5.3. went through the trouble of patching the qt UI,
# so we don't bother with gtk1.
patch -p1 < $CWD/patches/remove_gtk.diff

# stop the GUI from getting stuck in Configure Players, when no joysticks
# are plugged in. Without the patch, it continually complains "Joystick
# not available" and won't allow saving the settings, even if joystick
# control isn't selected. With the patch, it still complains, but only
# once (per human player), then it saves the settings and exits Configure
# Players correctly.
patch -p1 < $CWD/patches/joystick.diff

# remove "Select Theme" from the menu. it's unimplemented, plus there
# aren't any themes to choose (just the default one).
patch -p1 < $CWD/patches/remove_theme_option.diff

# add warning to the man page about the GUI section being outdated,
# remove mention of selecting themes.
patch -p1 < $CWD/patches/manpage.diff

# 20211015 bkw: fix build on -current (gcc 12)
patch -p1 < $CWD/patches/newgccfix.diff

# 20211015 bkw: patch from Fedora:
# https://src.fedoraproject.org/rpms/xarchon/raw/f34/f/xarchon-fonts.patch
patch -p1 < $CWD/patches/defaultfont.diff

# configure script is from 2002, no thank you.
rm -f configure
autoreconf -if

# don't rely on /etc/profile.d/qt.sh being executable.
export QTDIR=/opt/kde3/lib${LIBDIRSUFFIX}/qt3
export PATH=$QTDIR/bin:$PATH

CFLAGS="$SLKCFLAGS" \
CXXFLAGS="$SLKCFLAGS -fpermissive" \
./configure \
  --with-default-qt \
  --prefix=/usr \
  --bindir=/usr/games \
  --libdir=/usr/lib${LIBDIRSUFFIX} \
  --datadir=/usr/share/games/ \
  --sysconfdir=/etc \
  --localstatedir=/var \
  --mandir=/usr/man \
  --docdir=/usr/doc/$PRGNAM-$VERSION \
  --build=$ARCH-slackware-linux

make
make install-strip DESTDIR=$PKG
gzip -9 $PKG/usr/man/man6/$PRGNAM.6

# default to mouse control, not joystick. note that keyboard control is
# always active, regardless of this setting. also by default player 2
# is the AI. this allows people to quickly fire up a single-player game
# (the most common case) without going through the config menu. this
# just changes the default; users can change it as desired.
cat $CWD/$PRGNAM.default > $PKG/usr/share/games/$PRGNAM/$PRGNAM.default

# .desktop written for this build.
mkdir -p $PKG/usr/share/pixmaps $PKG/usr/share/applications
ln -s ../games/$PRGNAM/icon.xpm $PKG/usr/share/pixmaps/$PRGNAM.xpm
cat $CWD/$PRGNAM.desktop > $PKG/usr/share/applications/$PRGNAM.desktop

# 20211015 bkw: new-style icon. Only available in 32x32, sorry.
mkdir -p $PKG/usr/share/icons/hicolor/32x32/apps
convert data/icon.xpm $PKG/usr/share/icons/hicolor/32x32/apps/$PRGNAM.png

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cp -a AUTHORS COPYING ChangeLog NEWS README $PKG/usr/doc/$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
cat $CWD/doinst.sh > $PKG/install/doinst.sh

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