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#!/bin/bash

# Slackware build script for glulxe

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

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

# Man page comes from debian. glulxe.6.md originally came from:
# http://deb.debian.org/debian/pool/main/g/glulxe/glulxe_0.5.4-1.1.debian.tar.xz
# ...and I added the new options in v0.6.1.
# convert to a man page via:
# pandoc --standalone --to man glulxe-glktermw.6.md -o glulxe-glktermw.6

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

PRGNAM=glulxe
VERSION=${VERSION:-0.6.1}
BUILD=${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

# 0.6.1 => 061
TARVER=${VERSION//./}

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf $PRGNAM
tar xvf $CWD/$PRGNAM-$TARVER.tar.gz
cd $PRGNAM
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 {} +

# Include glulxdump in package. Have to apply our flags.
sed -i "/-o glulxdump/s,-o,$SLKCFLAGS -o," Makefile

# glulxe requires a glk library, but there are at least 3 to choose
# from. The most-commonly used one (by people who just play games) is
# going to be glktermw, so I made it a required dep. cheapglk and
# remglk are more niche-market, so they're optional.

# glktermw first.
# Unfortunately we can't define VM_DEBUGGER with glktermw, it lacks
# support for it.
OPTS="-DOS_UNIX -DUNIX_RAND_GETRANDOM -DVM_PROFILING"
make all glulxdump \
     OPTIONS="-Wall $SLKCFLAGS $OPTS" \
     GLKINCLUDEDIR=/usr/include/glktermw \
     GLKLIBDIR=/usr/lib$LIBDIRSUFFIX \
     GLKMAKEFILE=Make.glktermw

# no 'make install' target.
mkdir -p $PKG/usr/games
install -s glulxdump $PKG/usr/games/
install -s $PRGNAM $PKG/usr/games/$PRGNAM-glktermw
ln -s $PRGNAM-glktermw $PKG/usr/games/$PRGNAM
install profile-analyze.py $PKG/usr/games/$PRGNAM-profile-analyze

# only have a man page for glulxe-glktermw
MAN6=$PKG/usr/man/man6
mkdir -p $MAN6
gzip -9c < $CWD/glulxe-glktermw.6 > $MAN6/glulxe-glktermw.6.gz
ln -s glulxe-glktermw.6.gz $MAN6/$PRGNAM.6.gz

# cheapglk, if available.
INCCG="does NOT include"
if [ "${CHEAPGLK:-yes}" = "yes" -a -e /usr/include/cheapglk/glk.h ]; then
  INCCG="INCLUDES"
  rm -f *.o $PRGNAM glulxdump profile-raw
  # We *can* define VM_DEBUGGER with cheapglk, so do it.
  make OPTIONS="-Wall $SLKCFLAGS $OPTS -DVM_DEBUGGER" \
       GLKINCLUDEDIR=/usr/include/cheapglk \
       GLKLIBDIR=/usr/lib$LIBDIRSUFFIX \
       GLKMAKEFILE=Make.cheapglk \
       XMLLIBINCLUDEDIR=-I/usr/include/libxml2 \
       XMLLIB=-lxml2
  install -s $PRGNAM $PKG/usr/games/$PRGNAM-cheapglk
fi

# remglk, if available.
INCREM="does NOT include"
if [ "${REMGLK:-yes}" = "yes" -a -e /usr/include/remglk/glk.h ]; then
  INCREM="INCLUDES"
  rm -f *.o $PRGNAM glulxdump profile-raw
  # We *can* define VM_DEBUGGER with remglk, so do it.
  make OPTIONS="-Wall $SLKCFLAGS $OPTS -DVM_DEBUGGER" \
       GLKINCLUDEDIR=/usr/include/remglk \
       GLKLIBDIR=/usr/lib$LIBDIRSUFFIX \
       GLKMAKEFILE=Make.remglk \
       XMLLIBINCLUDEDIR=-I/usr/include/libxml2 \
       XMLLIB=-lxml2
  install -s $PRGNAM $PKG/usr/games/$PRGNAM-remglk
fi

PKGDOC=$PKG/usr/doc/$PRGNAM-$VERSION
mkdir -p $PKGDOC
cp -a LICENSE README.md $PKGDOC
cat $CWD/$PRGNAM.SlackBuild > $PKGDOC/$PRGNAM.SlackBuild

mkdir -p $PKG/install
sed -e "s,@INCREM@,$INCREM," \
    -e "s,@INCCG@,$INCCG," \
    < $CWD/slack-desc \
    > $PKG/install/slack-desc

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