#!/bin/bash

# Slackware build script for ltrace

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

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

# 20170628 bkw: updated for 0.7.3_6

PRGNAM=ltrace
VERSION=${VERSION:-0.7.3_6}
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}

if [ -z "$ARCH" ]; then
  case "$( uname -m )" in
    i?86) ARCH=i586 ;;
    arm*) ARCH=arm ;;
       *) ARCH=$( uname -m ) ;;
  esac
fi

CWD=$(pwd)
TMP=${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

# VERSION is upstream's plus Debian's (since we use their patchset)
SRCVER=$( echo $VERSION | cut -d_ -f1 )
DEBVER=$( echo $VERSION | cut -d_ -f2 )

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf $PRGNAM-$SRCVER
tar xvf $CWD/${PRGNAM}_$SRCVER.orig.tar.bz2
cd $PRGNAM-$SRCVER
tar xvf $CWD/${PRGNAM}_$SRCVER-$DEBVER.debian.tar.?z debian/patches
chown -R root:root .
find -L . \
 \( -perm 777 -o -perm 775 -o -perm 750 -o -perm 711 -o -perm 555 \
  -o -perm 511 \) -exec chmod 755 {} \; -o \
 \( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
  -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;

# apply Debian's patches, which fix a few bugs.
for i in $( cat debian/patches/series ); do
  patch -p1 < debian/patches/$i
done

# Slackware's gelf.h lives in /usr/include/libelf. Normally not a problem,
# but ltrace is old enough that it doesn't use pkg-config.
SLKCFLAGS="$SLKCFLAGS -I/usr/include/libelf"

CFLAGS="$SLKCFLAGS" \
CXXFLAGS="$SLKCFLAGS" \
./configure \
  --prefix=/usr \
  --libdir=/usr/lib${LIBDIRSUFFIX} \
  --sysconfdir=/etc \
  --localstatedir=/var \
  --mandir=/usr/man \
  --docdir=/usr/doc/$PRGNAM-$VERSION \
  --disable-werror \
  --build=$ARCH-slackware-linux

make
make install-strip DESTDIR=$PKG

gzip $PKG/usr/man/man?/*
mv $PKG/etc/$PRGNAM.conf $PKG/etc/$PRGNAM.conf.new

# docs already installed in right place, we don't need this one:
rm -f $PKG/usr/doc/$PRGNAM-$VERSION/INSTALL

cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild

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

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