diff --git a/development/byacc/README b/development/byacc/README
deleted file mode 100644
index 6fa385a6f0..0000000000
--- a/development/byacc/README
+++ /dev/null
@@ -1,11 +0,0 @@
-byacc (Berkeley Yacc parser generator)
-
-Berkeley Yacc is an LALR(1) parser generator.  Berkeley Yacc
-has been made as compatible as possible with AT&T Yacc.  Berkeley
-Yacc can accept any input specification that conforms to the AT&T
-Yacc documentation.  Specifications that take advantage of
-undocumented features of AT&T Yacc will probably be rejected.
-
-Please note that this will install the executable as byacc, in
-order not to conflict with the bison package that ships with Slack
-
diff --git a/development/byacc/byacc.SlackBuild b/development/byacc/byacc.SlackBuild
deleted file mode 100644
index bd6817d012..0000000000
--- a/development/byacc/byacc.SlackBuild
+++ /dev/null
@@ -1,68 +0,0 @@
-#!/bin/sh
-
-# Slackware build script for byacc
-
-# Copyright 2007 Martin Lefebvre <dadexter@sekurity.com>
-# All rights reserved.
-#
-# Redistribution and use of this script, with or without modification, is
-# permitted provided that the following conditions are met:
-#
-# 1. Redistributions of this script must retain the above copyright
-#    notice, this list of conditions and the following disclaimer.
-#
-# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ''AS IS'' AND ANY EXPRESS OR IMPLIED
-# WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
-# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
-# EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
-# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
-# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
-# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
-# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-set -e
-
-PRGNAM=byacc
-VERSION=1.9
-ARCH=${ARCH:-i486}
-BUILD=${BUILD:-1}
-TAG=${TAG:-_SBo}
-CWD=`pwd`
-TMP=${TMP:-/tmp/SBo}
-PKG=$TMP/package-$PRGNAM
-OUTPUT=${OUTPUT:-/tmp}
-
-rm -rf $PKG
-mkdir -p $TMP $PKG $OUTPUT
-cd $TMP || exit 1
-rm -rf $PRGNAM-$VERSION
-
-tar -xvf $CWD/$PRGNAM-$VERSION.tar.gz || exit 1
-cd $PRGNAM-$VERSION
-
-chown -R root:root .
-chmod -R a-s,u+w,go+r-w .
-
-make || exit 1
-strip yacc
-
-mkdir -p $PKG/usr/bin
-install -D -m755 yacc $PKG/usr/bin/byacc
-
-mkdir -p $PKG/usr/man/man1
-cat yacc.1 | gzip -9c > $PKG/usr/man/man1/byacc.1.gz
-
-mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
-
-cp -a ACKNOWLEDGEMENTS NEW_FEATURES NOTES NO_WARRANTY README \
-  $PKG/usr/doc/$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.tgz
diff --git a/development/byacc/byacc.info b/development/byacc/byacc.info
deleted file mode 100644
index 0c3b8c69dc..0000000000
--- a/development/byacc/byacc.info
+++ /dev/null
@@ -1,8 +0,0 @@
-PRGNAM="byacc"
-VERSION="1.9"
-HOMEPAGE="http://www.isc.org/sources/devel/tools/byacc-1.9.php"
-DOWNLOAD="http://www.isc.org/sources/devel/tools/byacc-1.9.tar.gz"
-MD5SUM="7f6103d3f278f063bd75e492551ffec4"
-MAINTAINER="Martin Lefebvre"
-EMAIL="dadexter@sekurity.com"
-APPROVED="BP{k}"
diff --git a/development/byacc/slack-desc b/development/byacc/slack-desc
deleted file mode 100644
index e2cc9a40df..0000000000
--- a/development/byacc/slack-desc
+++ /dev/null
@@ -1,19 +0,0 @@
-# HOW TO EDIT THIS FILE:
-# The "handy ruler" below makes it easier to edit a package description.  Line
-# up the first '|' above the ':' following the base package name, and the '|'
-# on the right side marks the last column you can put a character in.  You must
-# make exactly 11 lines for the formatting to be correct.  It's also
-# customary to leave one space after the ':'.
-
-      |-----handy-ruler------------------------------------------------------|
-byacc: byacc (Berkeley Yacc parser generator)
-byacc:
-byacc: Berkeley Yacc is an LALR(1) parser generator.  Berkeley Yacc
-byacc: has been made as compatible as possible with AT&T Yacc.  Berkeley
-byacc: Yacc can accept any input specification that conforms to the AT&T
-byacc: Yacc documentation.  Specifications that take advantage of
-byacc: undocumented features of AT&T Yacc will probably be rejected.
-byacc: 
-byacc: Please note that this will install the executable as byacc, in
-byacc: order not to conflict with the bison package that ships with Slack
-byacc: