A little error in the SlackBuild of dahdi-linux for 14.2

The package don't install a lot of binaries like dahdi_genconf and lsdahdi(they are in tools/xpp folder), probably there is some better way to install the missing file but my dirty solution seems to works.
This is my modified SlackBuild with corrections

Code:
#!/bin/sh

# Slackware Package Build Script for DAHDI complete package (http://www.asterisk.org/downloads/dahdi)
# SlackBuild source at https://github.com/chapmajs/dahdi-complete-slackbuild

# See LICENSE included in the project root for licensing information.

# Copyright (c) 2015 Jonathan Chapman
# glitch@glitchwrks.com
# All rights reserved.

PRGNAM=dahdi-complete
VERSION=${VERSION:-2.10.2}
BUILD=${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

KERNEL=${KERNEL:-$(uname -r)}
PKGKERNEL=$(echo $KERNEL | tr - _)
NUMJOBS=4

CWD=$(pwd)
TMP=${TMP:-/tmp/SBo}
PKG=$TMP/package-$PRGNAM
OUTPUT=${OUTPUT:-/tmp}

ARCHIVE_NAME=dahdi-linux-complete

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 $ARCHIVE_NAME-$VERSION+$VERSION
tar zxvf $CWD/$ARCHIVE_NAME-$VERSION+$VERSION.tar.gz
cd $ARCHIVE_NAME-$VERSION+$VERSION
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 {} \;

sed -i -e 's/ -Werror//' tools/acinclude.m4 tools/xpp/Makefile
sed -i -e 's/-Werror //' tools/Makefile

# Fix Perl install location (otherwise it installs to /usr/local/share/perl5)
sed -i -e 's/sitelib/vendorlib/' linux/build_tools/live_dahdi tools/xpp/Makefile

cd linux
make -j $NUMJOBS all
make install DESTDIR=$PKG

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

make -j $NUMJOBS
make install DESTDIR=$PKG
cd xpp
make install DESTDIR=$PKG
cd ../..
make config DESTDIR=$PKG

# Fix install perl
mkdir -p $PKG/usr/share/perl5/vendor_perl
for file in Dahdi Dahdi.pm ;do cp -av $TMP/$ARCHIVE_NAME-$VERSION+$VERSION/tools/xpp/perl_modules/$file $PKG/usr/share/perl5/vendor_perl/$file;done

# Fix install some missing binaries
for file in dahdi_genconf dahdi_hardware dahdi_registration lsdahdi twinstar xpp_blink xpp_sync ;do install -m 0755 $TMP/$ARCHIVE_NAME-$VERSION+$VERSION/tools/xpp/$file $PKG/usr/sbin/$file;done

# move config files to .new
cd $PKG/etc
for file in $(find . -type f); do
mv $file "$file.new"
done

install -D -m 0644 $TMP/$ARCHIVE_NAME-$VERSION+$VERSION/tools/dahdi.init $PKG/etc/rc.d/rc.dahdi.new

find $PKG -print0 | xargs -0 file | grep -e "executable" -e "shared object" | grep ELF \
| cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null || true

find $PKG/usr/man -type f -exec gzip -9 {} \;
for i in $( find $PKG/usr/man -type l ) ; do ln -s $( readlink $i ).gz $i.gz ; rm $i ; done

# Clean up zero-length firmware files
find $PKG/lib/firmware -size 0 -delete
# Remove unused directory
rm -rf $PKG/usr/lib

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-${VERSION}_$PKGKERNEL-$ARCH-$BUILD$TAG.${PKGTYPE:-tgz}