#!/bin/bash

# Slackware build script for zmac

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

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

# This is a combo: the assembler and the linker in one package.

# VERSION is the zmac version (which is just a release date) plus
# the ld80 version. I downloaded the .zip files from the author's
# site, but as they're unversioned there (zmac.zip and ld80.zip),
# they will be replaced with newer versions someday, and break this
# SlackBuild. So I put them on my server with versioned filenames
# (otherwise unmodified).

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

PRGNAM=zmac
VERSION=${VERSION:-20221018_0.7}
BUILD=${BUILD:-1}
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}

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"
else
  SLKCFLAGS="-O2"
  LIBDIRSUFFIX=""
fi

set -e

ZMACVER="$( echo $VERSION | cut -d_ -f1 )"
LD80VER="$( echo $VERSION | cut -d_ -f2 )"
ZMAC=zmac-$ZMACVER
LD80=ld80-$LD80VER

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf $PRGNAM-$VERSION
mkdir $PRGNAM-$VERSION
cd $PRGNAM-$VERSION
TOPDIR=$(pwd)
mkdir zmac-$ZMACVER ld80-$LD80VER
unzip -j $CWD/$ZMAC.zip -d $ZMAC -x '*.exe' '*.bat'
unzip $CWD/$LD80.zip -d $LD80 -x '*.exe' '*.bat' '*.vcproj' '*.sln'
chown -R root:root .
chmod 755 *
chmod 644 */*

sed -i "s,-g,$SLKCFLAGS," $LD80/Makefile

# These really do fail with -jN in the env, if N>1. They're also
# small enough that it's not painfully slow with -j1.
make -j1 -C $ZMAC CXXFLAGS="$SLKCFLAGS" CFLAGS="$SLKCFLAGS"
make -j1 -C $LD80

# No 'make install' for either one.
PKGBIN=$PKG/usr/bin
PKGMAN1=$PKG/usr/man/man1
PKGDOC=$PKG/usr/doc/$PRGNAM-$VERSION
mkdir -p $PKGBIN $PKGMAN1 $PKGDOC

install -s $ZMAC/zmac $LD80/ld80 $PKGBIN

# ld80 has a nice man page, zmac man page is copypasta from zmac.html.
gzip -9c <  $CWD/zmac.1 > $PKGMAN1/zmac.1.gz
gzip -9c < $LD80/ld80.1 > $PKGMAN1/ld80.1.gz

# HTML doc is built into the binary, extract it. Don't bother with doc.txt,
# since it's the source for the HTML.
./$ZMAC/zmac --doc > $PKGDOC/zmac.html

cp -a $LD80/ld80.html $PKGDOC
cat $CWD/$PRGNAM.SlackBuild > $PKGDOC/$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