#!/bin/bash

# Slackware build script for dis6502

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

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

# 20230516 bkw: *finally* updated after almost 6 years. upstream moved
# to github but didn't update or remove the old website...
# - updated for latest git (0.15+2857fc3_20180311). used latest git
#   rather than the last release because there's a critical bugfix:
#   release was missing the LSR zeropage opcode.
# - use upstream's man page, now that there is one. though I had to
#   patch it to add a couple options that aren't mentioned there.
# - get rid of no-longer-needed compilefix and helpformat patches.
# - mention the predefs files in README.

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

PRGNAM=dis6502
VERSION=${VERSION:-0.15+2857fc3_20180311}
BUILD=${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

TARVER="$( echo $VERSION | cut -d+ -f1 )"
GITVER="$( echo $VERSION | cut -d+ -f2 )"

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf $PRGNAM-$TARVER
tar xvf $CWD/$PRGNAM-$TARVER.tar.gz
cd $PRGNAM-$TARVER
chown -R root:root .
chmod 644 *

# Patch was made by editing the man page. Documents a few options
# that are in the help output, cleans up the formatting, and fixes
# the synopsis.
patch -p1 < $CWD/manpage.diff

# Patch was made by cloning upstream's repo and doing a 'git diff v0.15'.
patch -p1 < $CWD/$GITVER.diff

make CFLAGS="$SLKCFLAGS -fcommon"

mkdir -p $PKG/usr/bin $PKG/usr/man/man1
install -s -m0755 $PRGNAM $PKG/usr/bin
gzip -9c < $PRGNAM.1 > $PKG/usr/man/man1/$PRGNAM.1.gz

# c64.predefs file is a modified version of the one from the
# comp.sources.amiga v02i053 release. atari8.predefs file was created
# by the SlackBuild author.
mkdir -p $PKG/usr/share/$PRGNAM
cat $CWD/c64.predefs > $PKG/usr/share/$PRGNAM/c64.predefs
cat $CWD/atari8.predefs > $PKG/usr/share/$PRGNAM/atari8.predefs

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cp -a README* COPYING $PKG/usr/doc/$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