#!/bin/bash

# Slackware build script for ieee-pilot

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

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

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

PRGNAM=ieee-pilot
VERSION=${VERSION:-1.11}
BUILD=${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

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 {} +

# Fix man pages so they refer to ieee-pilot and ieee-pilotconv.
# Also, fix a couple of typos in the docs.
patch -p1 < $CWD/docs.diff

# Fix error in generated C code: a comment (R) followed by label
# results in the label being emitted twice (which fails to compile
# in modern gcc or clang). This affects the speaknum.p example.
# The fix is a "band-aid", but effective.
# Also, fix warnings in generated C code (-c option).
patch -p1 < $CWD/gencode.diff

LIBDIR=/usr/lib$LIBDIRSUFFIX/$PRGNAM
PKGLIB=$PKG$LIBDIR
PKGBIN=$PKG/usr/bin
PKGMAN1=$PKG/usr/man/man1
PKGDOC=$PKG/usr/doc/$PRGNAM-$VERSION
CONV=${PRGNAM}conv

sed -i "/PILOTDIR/s,/usr/lib/pilot/,$LIBDIR," pilot.h

# The -j1 is needed. Parallel makes don't speed this up much
# anyway, because it's a tiny project.
make -j1 all man html OPTFLAGS="$SLKCFLAGS" PILOTDIR=$LIBDIR

mkdir -p $PKGLIB $PKGBIN $PKGMAN1 $PKGDOC/examples
install -m0644 libpilot.a pilot.h $PKGLIB
install -m0755 -s pilot $PKGBIN/$PRGNAM
install -m0755 -s pilotconv $PKGBIN/$CONV
gzip -9 < $PRGNAM.1 > $PKGMAN1/$PRGNAM.1.gz
gzip -9 < $CONV.1 > $PKGMAN1/$CONV.1.gz

cp -a COPYING NEWS README TODO *.html *.jpg $PKGDOC
cp -a *.p $PKGDOC/examples
cat $CWD/$PRGNAM.SlackBuild > $PKGDOC/$PRGNAM.SlackBuild

mkdir -p $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc

cd $PKG

find usr/man -type f -a -name '*.gz' \
  -printf "chroot . /usr/bin/mandb -f '/%p' &> /dev/null\n" \
  >> install/doinst.sh

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