#!/bin/bash

# Slackware build script for z26

# Written by B. Watson (yalhcru@gmail.com)
# Modified by SlackBuilds.org

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

# 20211214 bkw:
# - BUILD=3
# - update for -current, which involves building with 14.2's nasm.
#   there's probably a better way to fix it, but it's been 16+ years
#   since I looked at z26's asm source and the details elude me now.
# - TODO: fix the statified binary for x86_64 use.

# 20180123 bkw:
# - move binary to /usr/games, man page to section 6
# - 64-bit support via statified binary (see statify.sh)
# - BUILD=2

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

PRGNAM=z26
VERSION=${VERSION:-2.13}
BUILD=${BUILD:-3}
TAG=${TAG:-_SBo}
PKGTYPE=${PKGTYPE:-tgz}

# The distribution tarball is actually a snapshot that got
# "promoted" to being the 2.13 release, but never got repacked,
# so the top-level directory is z26_snapshot-$date
# (nevertheless, this is the official 2.13 source release, or as close
# as we're going to get)
SNAPVER=${SNAPVER:-${PRGNAM}_snapshot-20040523}
TARBALL=${TARBALL:-${PRGNAM}v213.tar.gz}

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}

if [ "$ARCH" = "i586" ]; then
  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
elif [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O2 -march=i686 -mtune=i686"
elif [ "$ARCH" = "x86_64" ]; then
  echo "=== $ARCH detected, using statified binary"
else
  echo "Can't build on $ARCH, sorry"
  exit 1
fi

set -e

# 20211214 bkw: recent versions of nasm won't build this, so use
# an older one (the one from Slackware 14.2, actually).
NASMVER=${NASMVER:-2.13.01}

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf $SNAPVER
tar xvf $CWD/$TARBALL
cd $SNAPVER
tar xvf $CWD/nasm-$NASMVER.tar.xz
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 {} \+

# man page belongs in section 6
sed -i '/pod2man -c/s,-c,-s6 -c,' Makefile

if [ "$ARCH" = "x86_64" ]; then
  xz -d < $CWD/$PRGNAM.static.xz > $PRGNAM
  chmod 755 $PRGNAM
  cp conf/config_linux-static.mak config.mak
else
  cd nasm-$NASMVER
    CFLAGS="$SLKCFLAGS -Wno-error" ./configure --disable-werror
    # neither CFLAGS="-Wno-error" nor --disable-werror actually works.
    sed -i 's,-Werror[^ ]*,,g' Makefile
    make
  cd -
  make linux NASM="$(pwd)/nasm-$NASMVER/nasm" CFLAGS="$SLKCFLAGS"
fi
make $PRGNAM.man
make docs

mkdir -p $PKG/usr/games $PKG/usr/man/man6
install -m0755 -o root -g root $PRGNAM $PKG/usr/games
gzip -9c $PRGNAM.man > $PKG/usr/man/man6/$PRGNAM.6.gz

rm -rf doc/CVS
mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cp doc/* *.txt *.TXT $PKG/usr/doc/$PRGNAM-$VERSION
cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild

mkdir -p $PKG/usr/share/pixmaps
cp ${PRGNAM}_icon.png $PKG/usr/share/pixmaps/$PRGNAM.png

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