diff --git a/development/opencvs/README b/development/opencvs/README
new file mode 100644
index 0000000000..b152df2b35
--- /dev/null
+++ b/development/opencvs/README
@@ -0,0 +1,9 @@
+OpenCVS is a FREE implementation of the Concurrent Versions System,
+the most popular open source revision control software. It can be
+used as both client and server for repositories and provides granular
+access control over data stored in the repository. It aims to be as
+compatible as possible with other CVS implementations, except when
+particular features reduce the overall security of the system.
+
+OpenCVS is developed under and for OpenBSD only. This is the portable
+version which allows non-OpenBSD users to use OpenCVS instead of CVS.
diff --git a/development/opencvs/opencvs.SlackBuild b/development/opencvs/opencvs.SlackBuild
new file mode 100644
index 0000000000..1fac9b5579
--- /dev/null
+++ b/development/opencvs/opencvs.SlackBuild
@@ -0,0 +1,104 @@
+#!/bin/sh
+
+# Copyright (c) 2011 Daniel LEVAI
+# All rights reserved.
+#
+# * Redistribution and use in source and binary forms, with or without
+#   modification, are permitted provided that the following conditions
+#   are met:
+# * Redistributions of source code must retain the above copyright notice
+#   this list of conditions and the following disclaimer.
+# * Redistributions in binary form must reproduce the above copyright
+#   notice, this list of conditions and the following disclaimer in the
+#   documentation and/or other materials provided with the distribution.
+#
+# THIS SOFTWARE IS PROVIDED ''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
+# COPYRIGHT HOLDER 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.
+
+# build script for OpenCVS
+
+PRGNAM=opencvs
+VERSION=${VERSION:-20110824193500}
+BUILD=${BUILD:-1}
+TAG=${TAG:-_SBo}
+
+if [ -z "$ARCH" ]; then
+  case "$( uname -m )" in
+    i?86) ARCH=i486 ;;
+    arm*) ARCH=arm ;;
+       *) ARCH=$( uname -m ) ;;
+  esac
+fi
+
+CWD=$(pwd)
+TMP=${TMP:-/tmp/SBo}
+PKG=$TMP/package-$PRGNAM
+OUTPUT=${OUTPUT:-/tmp}
+
+if [ "$ARCH" = "i486" ]; then
+  SLKCFLAGS="-O2 -march=i486 -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}
+tar xvf $CWD/${PRGNAM}-$VERSION.tar.gz
+cd ${PRGNAM}
+chown -R root:root .
+find . \
+ \( -perm 777 -o -perm 775 -o -perm 711 -o -perm 555 -o -perm 511 \) \
+ -exec chmod 755 {} \; -o \
+ \( -perm 666 -o -perm 664 -o -perm 600 -o -perm 444 -o -perm 440 -o -perm 400 \) \
+ -exec chmod 644 {} \;
+
+./bootstrap
+
+CFLAGS="$SLKCFLAGS" \
+CXXFLAGS="$SLKCFLAGS" \
+./configure \
+  --prefix=/usr \
+  --libdir=/usr/lib${LIBDIRSUFFIX} \
+  --sysconfdir=/etc \
+  --localstatedir=/var \
+  --mandir=/usr/man \
+  --docdir=/usr/doc/$PRGNAM-$VERSION \
+  --build=$ARCH-slackware-linux
+
+make
+make install DESTDIR=$PKG
+
+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
+
+mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
+cp -a \
+  README LICENSE ChangeLog \
+  $PKG/usr/doc/$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.${PKGTYPE:-tgz}
diff --git a/development/opencvs/opencvs.info b/development/opencvs/opencvs.info
new file mode 100644
index 0000000000..b98b9c72b8
--- /dev/null
+++ b/development/opencvs/opencvs.info
@@ -0,0 +1,10 @@
+PRGNAM="opencvs"
+VERSION="20110824193500"
+HOMEPAGE="http://chl.be/opencvs/"
+DOWNLOAD="http://chl.be/opencvs/opencvs-20110824193500.tar.gz"
+MD5SUM="7abbcd1aa34906f5f0b631f7e502e59f"
+DOWNLOAD_x86_64=""
+MD5SUM_x86_64=""
+MAINTAINER="Daniel LEVAI"
+EMAIL="leva@ecentrum.hu"
+APPROVED="Erik Hanson"
diff --git a/development/opencvs/slack-desc b/development/opencvs/slack-desc
new file mode 100644
index 0000000000..9d5c4b3ab3
--- /dev/null
+++ b/development/opencvs/slack-desc
@@ -0,0 +1,19 @@
+# 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------------------------------------------------------|
+opencvs: OpenCVS (a FREE implementation of the Concurrent Versions System)
+opencvs:
+opencvs: OpenCVS is a FREE implementation of the Concurrent Versions System.
+opencvs: It is developed under and for OpenBSD only. This is the portable
+opencvs: version which allows non-OpenBSD users to use OpenCVS instead of CVS.
+opencvs:
+opencvs:
+opencvs:
+opencvs:
+opencvs: Homepage: http://chl.be/opencvs/
+opencvs: