diff --git a/external/gpl3/gdb/gdb2netbsd b/external/gpl3/gdb/gdb2netbsd
new file mode 100755
index 000000000000..7dd4b4acf709
--- /dev/null
+++ b/external/gpl3/gdb/gdb2netbsd
@@ -0,0 +1,67 @@
+#! /bin/sh
+#
+#	$NetBSD: gdb2netbsd,v 1.1 2011/09/24 20:52:37 christos Exp $
+#
+# Copyright (c) 2011 The NetBSD Foundation, Inc.
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. 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 BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+# ``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 FOUNDATION OR CONTRIBUTORS
+# 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.
+#
+# gdb2netbsd:  convert a file source tree into a
+# format suitable for import.  Works on current dir.
+# You can run this only once if you want it to work.
+#
+# based on file 2netbsd
+#
+PROG="$(basename "$0")"
+
+if [ -z "$1" ]
+then
+	echo "Usage: $PROG <directory>" 1>&2
+	exit 1
+fi
+FILE="$1"
+
+### Remove the $'s around RCS tags
+find "$FILE" -type f -print | xargs egrep -l '\$(Author|Date|Header|Id|LocalId|Locker|Log|Name|RCSfile|Revision|Source|State|NetBSD)'\
+    | while read f; do
+	sed \
+	    -e 's/\$\(Author.*\) \$/\1/' \
+	    -e 's/\$\(Date.*\) \$/\1/' \
+	    -e 's/\$\(Header.*\) \$/\1/' \
+	    -e 's/\$\(Id.*\) \$/\1/' \
+	    -e 's/\$\(LocalId.*\) \$/\1/' \
+	    -e 's/\$\(Locker.*\) \$/\1/' \
+	    -e 's/\$\(Log.*\) \$/\1/' \
+	    -e 's/\$\(Name.*\) \$/\1/' \
+	    -e 's/\$\(RCSfile.*\) \$/\1/' \
+	    -e 's/\$\(Revision.*\) \$/\1/' \
+	    -e 's/\$\(Source.*\) \$/\1/' \
+	    -e 's/\$\(State.*\) \$/\1/' \
+	    -e 's/\$\(NetBSD.*\) \$/\1/' \
+	    $f > /tmp/gdb2$$ && mv /tmp/gdb2$$ $f
+done
+
+echo You can import now.  Use the following command:
+echo cvs import src/external/gpl3/gdb/dist FSF gdb-X-Y-Z
+
+exit 0