Bug#402786: xawtv: includes GPL-incompatible code from Open Motif

[Matej Vela <vela@debian.org>]

Package: xawtv
Version: 3.95-6
Severity: serious
Tags: patch

common/RegEdit.c, common/RegEdit.h, and common/RegEditI.h come from
Open Motif, and have a GPL-incompatible license:

    COPYRIGHT NOTICE
    Copyright (c) 1990, 1991, 1992, 1993 Open Software Foundation, Inc.
    Copyright (c) 1996, 1997, 1998, 1999, 2000 The Open Group
    ALL RIGHTS RESERVED (MOTIF).  See the file named COPYRIGHT.MOTIF for
    the full copyright text.

    This software is subject to an open license. It may only be
    used on, with or for operating systems which are themselves open
    source systems. You must contact The Open Group for a license
    allowing distribution and sublicensing of this software on, with,
    or for operating systems which are not Open Source programs.

    See http://www.opengroup.org/openmotif/license for full
    details of the license agreement. Any use, reproduction, or
    distribution of the program constitutes recipient's acceptance of
    this agreement.

    EXCEPT AS EXPRESSLY SET FORTH IN THIS AGREEMENT, THE PROGRAM IS
    PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
    KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT LIMITATION, ANY
    WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT, MERCHANTABILITY
    OR FITNESS FOR A PARTICULAR PURPOSE

    EXCEPT AS EXPRESSLY SET FORTH IN THIS AGREEMENT, NEITHER RECIPIENT
    NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY DIRECT,
    INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
    DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), 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 OR DISTRIBUTION OF THE PROGRAM OR THE
    EXERCISE OF ANY RIGHTS GRANTED HEREUNDER, EVEN IF ADVISED OF THE
    POSSIBILITY OF SUCH DAMAGES.

Basically, these files consist of a lint-cleaned copy of the X11R5
editres implementation and a single-line wrapper, XmdRegisterEditres.
I'm guessing they were distributed separately because this wasn't
available in X11R4.

Switching to equivalent functionality in libxmu6 comes down to
replacing

    #include "RegEdit.h"
    ...
    XmdRegisterEditres(shell_widget);

with code from <http://www.rahul.net/kenton/faqs/Motif-FAQ.html#288>:

    #include <X11/Xmu/Editres.h>
    ...
    XtAddEventHandler(shell_widget, (EventMask) 0, True,
                      (XtEventHandler) _XEditResCheckMessages, NULL);

(plus `-lXmu' on the link line).

In the case of xawtv, the Motif applications that use this (motv, mtt)
have already been separated into a non-free motv package.  xawtv will
build fine if we just repackage xawtv_3.95.orig.tar.gz without
common/RegEdit*.  (I'd do this myself, but I've lost my key.)

Thanks,

Matej