Re: [OE-core] [PATCH] common-licenses, licenses.conf: Remove duplicate licenses

["Peter Kjellerstedt" <peter.kjellerstedt@axis.com>]

> -----Original Message-----
> From: Khem Raj <raj.khem@gmail.com>
> Sent: den 5 september 2021 01:52
> To: Peter Kjellerstedt <peter.kjellerstedt@axis.com>
> Cc: Patches and discussions about the oe-core layer <openembedded-
> core@lists.openembedded.org>
> Subject: Re: [OE-core] [PATCH] common-licenses, licenses.conf: Remove
> duplicate licenses
> 
> meta-oe was using BSD-0-Clause see
> https://autobuilder.yoctoproject.org/typhoon/#/builders/88/builds/1506
> I have sent a fix for that

That shouldn't be a problem as the patch below sets up mappings from the 
old names to the SPDX names. But of course, it is always a good idea to 
use the SPDX names directly rather than relying on the aliases.

//Peter

> On Fri, Sep 3, 2021 at 2:40 PM Peter Kjellerstedt
> <peter.kjellerstedt@axis.com> wrote:
> >
> > This removes BSD-0-Clause, Nauman, tcl and vim and adds mappings for
> > them to their SPDX counterparts (0BSD, Naumen, TCL and Vim).
> >
> > It also removes FreeType, which already had a mapping to FTL.
> >
> > Signed-off-by: Peter Kjellerstedt <peter.kjellerstedt@axis.com>
> > ---
> >
> > In case anyone is interested, the following command (executed in
> > meta/files/common-licenses) can be used to list all licenses that are
> > not present in spdx-licenses.json:
> >
> >   ls | grep -Ev "^($(sed -nre 's/.*"licenseId": "(.*)".*/\1/p'
> ../../files/spdx-licenses.json | sort | tr '\n' '|'))\$"
> >
> >  meta/conf/licenses.conf                 |  30 +++--
> >  meta/files/common-licenses/BSD-0-Clause |  12 --
> >  meta/files/common-licenses/FreeType     | 170 ------------------------
> >  meta/files/common-licenses/Nauman       |  50 -------
> >  meta/files/common-licenses/tcl          |  40 ------
> >  meta/files/common-licenses/vim          |  81 -----------
> >  6 files changed, 18 insertions(+), 365 deletions(-)
> >  delete mode 100644 meta/files/common-licenses/BSD-0-Clause
> >  delete mode 100644 meta/files/common-licenses/FreeType
> >  delete mode 100644 meta/files/common-licenses/Nauman
> >  delete mode 100644 meta/files/common-licenses/tcl
> >  delete mode 100644 meta/files/common-licenses/vim
> >
> > diff --git a/meta/conf/licenses.conf b/meta/conf/licenses.conf
> > index e2bd58f84a..991fb6cc23 100644
> > --- a/meta/conf/licenses.conf
> > +++ b/meta/conf/licenses.conf
> > @@ -19,6 +19,9 @@ SPDXLICENSEMAP[AGPLv3.0+] = "AGPL-3.0-or-later"
> >  SPDXLICENSEMAP[AGPL-3.0] = "AGPL-3.0-only"
> >  SPDXLICENSEMAP[AGPL-3.0+] = "AGPL-3.0-or-later"
> >
> > +# BSD variations
> > +SPDXLICENSEMAP[BSD-0-Clause] = "0BSD"
> > +
> >  # GPL variations
> >  SPDXLICENSEMAP[GPL-1] = "GPL-1.0-only"
> >  SPDXLICENSEMAP[GPL-1+] = "GPL-1.0-or-later"
> > @@ -45,7 +48,7 @@ SPDXLICENSEMAP[GPLv3.0+] = "GPL-3.0-or-later"
> >  SPDXLICENSEMAP[GPL-3.0] = "GPL-3.0-only"
> >  SPDXLICENSEMAP[GPL-3.0+] = "GPL-3.0-or-later"
> >
> > -#LGPL variations
> > +# LGPL variations
> >  SPDXLICENSEMAP[LGPLv2] = "LGPL-2.0-only"
> >  SPDXLICENSEMAP[LGPLv2+] = "LGPL-2.0-or-later"
> >  SPDXLICENSEMAP[LGPLv2.0] = "LGPL-2.0-only"
> > @@ -63,49 +66,52 @@ SPDXLICENSEMAP[LGPLv3+] = "LGPL-3.0-or-later"
> >  SPDXLICENSEMAP[LGPL-3.0] = "LGPL-3.0-only"
> >  SPDXLICENSEMAP[LGPL-3.0+] = "LGPL-3.0-or-later"
> >
> > -#MPL variations
> > +# MPL variations
> >  SPDXLICENSEMAP[MPL-1] = "MPL-1.0"
> >  SPDXLICENSEMAP[MPLv1] = "MPL-1.0"
> >  SPDXLICENSEMAP[MPLv1.1] = "MPL-1.1"
> >  SPDXLICENSEMAP[MPLv2] = "MPL-2.0"
> >
> > -#MIT variations
> > +# MIT variations
> >  SPDXLICENSEMAP[MIT-X] = "MIT"
> >  SPDXLICENSEMAP[MIT-style] = "MIT"
> >
> > -#Openssl variations
> > +# Openssl variations
> >  SPDXLICENSEMAP[openssl] = "OpenSSL"
> >
> > -#PSF variations
> > +# PSF variations
> >  SPDXLICENSEMAP[PSF] = "PSF-2.0"
> >  SPDXLICENSEMAP[PSFv2] = "PSF-2.0"
> >
> > -#Python variations
> > +# Python variations
> >  SPDXLICENSEMAP[Python-2] = "Python-2.0"
> >
> > -#Apache variations
> > +# Apache variations
> >  SPDXLICENSEMAP[Apachev2] = "Apache-2.0"
> >  SPDXLICENSEMAP[Apache-2] = "Apache-2.0"
> >
> > -#Artistic variations
> > +# Artistic variations
> >  SPDXLICENSEMAP[Artisticv1] = "Artistic-1.0"
> >  SPDXLICENSEMAP[Artistic-1] = "Artistic-1.0"
> >
> > -#Academic variations
> > +# Academic variations
> >  SPDXLICENSEMAP[AFL-2] = "AFL-2.0"
> >  SPDXLICENSEMAP[AFL-1] = "AFL-1.2"
> >  SPDXLICENSEMAP[AFLv2] = "AFL-2.0"
> >  SPDXLICENSEMAP[AFLv1] = "AFL-1.2"
> >
> > -#CDDL variations
> > +# CDDL variations
> >  SPDXLICENSEMAP[CDDLv1] = "CDDL-1.0"
> >  SPDXLICENSEMAP[CDDL-1] = "CDDL-1.0"
> >
> > -#Other variations
> > +# Other variations
> >  SPDXLICENSEMAP[EPLv1.0] = "EPL-1.0"
> >  SPDXLICENSEMAP[FreeType] = "FTL"
> > +SPDXLICENSEMAP[Nauman] = "Naumen"
> > +SPDXLICENSEMAP[tcl] = "TCL"
> > +SPDXLICENSEMAP[vim] = "Vim"
> >
> > -#Silicon Graphics variations
> > +# Silicon Graphics variations
> >  SPDXLICENSEMAP[SGIv1] = "SGI-1"
> >
> >  # Additional license directories. Add your custom licenses directories
> this path.
> > diff --git a/meta/files/common-licenses/BSD-0-Clause
> b/meta/files/common-licenses/BSD-0-Clause
> > deleted file mode 100644
> > index 328bdd6aee..0000000000
> > --- a/meta/files/common-licenses/BSD-0-Clause
> > +++ /dev/null
> > @@ -1,12 +0,0 @@
> > -Copyright (C) <YEAR> by <OWNER>
> > -
> > -Permission to use, copy, modify, and/or distribute this software for
> any
> > -purpose with or without fee is hereby granted.
> > -
> > -THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
> WARRANTIES
> > -WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
> > -MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
> > -ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
> > -WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
> > -ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
> > -OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
> > diff --git a/meta/files/common-licenses/FreeType b/meta/files/common-
> licenses/FreeType
> > deleted file mode 100644
> > index 3666649f3e..0000000000
> > --- a/meta/files/common-licenses/FreeType
> > +++ /dev/null
> > @@ -1,170 +0,0 @@
> > -                    The FreeType Project LICENSE
> > -                    ----------------------------
> > -
> > -                            2006-Jan-27
> > -
> > -                    Copyright 1996-2002, 2006 by
> > -          David Turner, Robert Wilhelm, and Werner Lemberg
> > -
> > -
> > -
> > -Introduction
> > -============
> > -
> > -  The FreeType  Project is distributed in  several archive packages;
> > -  some of them may contain, in addition to the FreeType font engine,
> > -  various tools and  contributions which rely on, or  relate to, the
> > -  FreeType Project.
> > -
> > -  This  license applies  to all  files found  in such  packages, and
> > -  which do not  fall under their own explicit  license.  The license
> > -  affects  thus  the  FreeType   font  engine,  the  test  programs,
> > -  documentation and makefiles, at the very least.
> > -
> > -  This  license   was  inspired  by  the  BSD,   Artistic,  and  IJG
> > -  (Independent JPEG  Group) licenses, which  all encourage inclusion
> > -  and  use of  free  software in  commercial  and freeware  products
> > -  alike.  As a consequence, its main points are that:
> > -
> > -    o We don't promise that this software works. However, we will be
> > -      interested in any kind of bug reports. (`as is' distribution)
> > -
> > -    o You can  use this software for whatever you  want, in parts or
> > -      full form, without having to pay us. (`royalty-free' usage)
> > -
> > -    o You may not pretend that  you wrote this software.  If you use
> > -      it, or  only parts of it,  in a program,  you must acknowledge
> > -      somewhere  in  your  documentation  that  you  have  used  the
> > -      FreeType code. (`credits')
> > -
> > -  We  specifically  permit  and  encourage  the  inclusion  of  this
> > -  software, with  or without modifications,  in commercial products.
> > -  We  disclaim  all warranties  covering  The  FreeType Project  and
> > -  assume no liability related to The FreeType Project.
> > -
> > -
> > -  Finally,  many  people  asked  us  for  a  preferred  form  for  a
> > -  credit/disclaimer to use in compliance with this license.  We thus
> > -  encourage you to use the following text:
> > -
> > -   """
> > -    Portions of this software are copyright © <year> The FreeType
> > -    Project (www.freetype.org).  All rights reserved.
> > -   """
> > -
> > -  Please replace <year> with the value from the FreeType version you
> > -  actually use.
> > -
> > -
> > -Legal Terms
> > -===========
> > -
> > -0. Definitions
> > ---------------
> > -
> > -  Throughout this license,  the terms `package', `FreeType Project',
> > -  and  `FreeType  archive' refer  to  the  set  of files  originally
> > -  distributed  by the  authors  (David Turner,  Robert Wilhelm,  and
> > -  Werner Lemberg) as the `FreeType Project', be they named as alpha,
> > -  beta or final release.
> > -
> > -  `You' refers to  the licensee, or person using  the project, where
> > -  `using' is a generic term including compiling the project's source
> > -  code as  well as linking it  to form a  `program' or `executable'.
> > -  This  program is  referred to  as  `a program  using the  FreeType
> > -  engine'.
> > -
> > -  This  license applies  to all  files distributed  in  the original
> > -  FreeType  Project,   including  all  source   code,  binaries  and
> > -  documentation,  unless  otherwise  stated   in  the  file  in  its
> > -  original, unmodified form as  distributed in the original archive.
> > -  If you are  unsure whether or not a particular  file is covered by
> > -  this license, you must contact us to verify this.
> > -
> > -  The FreeType  Project is copyright (C) 1996-2000  by David Turner,
> > -  Robert Wilhelm, and Werner Lemberg.  All rights reserved except as
> > -  specified below.
> > -
> > -1. No Warranty
> > ---------------
> > -
> > -  THE FREETYPE PROJECT  IS PROVIDED `AS IS' WITHOUT  WARRANTY OF ANY
> > -  KIND, EITHER  EXPRESS OR IMPLIED,  INCLUDING, BUT NOT  LIMITED TO,
> > -  WARRANTIES  OF  MERCHANTABILITY   AND  FITNESS  FOR  A  PARTICULAR
> > -  PURPOSE.  IN NO EVENT WILL ANY OF THE AUTHORS OR COPYRIGHT HOLDERS
> > -  BE LIABLE  FOR ANY DAMAGES CAUSED  BY THE USE OR  THE INABILITY TO
> > -  USE, OF THE FREETYPE PROJECT.
> > -
> > -2. Redistribution
> > ------------------
> > -
> > -  This  license  grants  a  worldwide, royalty-free,  perpetual  and
> > -  irrevocable right  and license to use,  execute, perform, compile,
> > -  display,  copy,   create  derivative  works   of,  distribute  and
> > -  sublicense the  FreeType Project (in  both source and  object code
> > -  forms)  and  derivative works  thereof  for  any  purpose; and  to
> > -  authorize others  to exercise  some or all  of the  rights granted
> > -  herein, subject to the following conditions:
> > -
> > -    o Redistribution of  source code  must retain this  license file
> > -      (`FTL.TXT') unaltered; any  additions, deletions or changes to
> > -      the original  files must be clearly  indicated in accompanying
> > -      documentation.   The  copyright   notices  of  the  unaltered,
> > -      original  files must  be  preserved in  all  copies of  source
> > -      files.
> > -
> > -    o Redistribution in binary form must provide a  disclaimer  that
> > -      states  that  the software is based in part of the work of the
> > -      FreeType Team,  in  the  distribution  documentation.  We also
> > -      encourage you to put an URL to the FreeType web page  in  your
> > -      documentation, though this isn't mandatory.
> > -
> > -  These conditions  apply to any  software derived from or  based on
> > -  the FreeType Project,  not just the unmodified files.   If you use
> > -  our work, you  must acknowledge us.  However, no  fee need be paid
> > -  to us.
> > -
> > -3. Advertising
> > ---------------
> > -
> > -  Neither the  FreeType authors and  contributors nor you  shall use
> > -  the name of the  other for commercial, advertising, or promotional
> > -  purposes without specific prior written permission.
> > -
> > -  We suggest,  but do not require, that  you use one or  more of the
> > -  following phrases to refer  to this software in your documentation
> > -  or advertising  materials: `FreeType Project',  `FreeType Engine',
> > -  `FreeType library', or `FreeType Distribution'.
> > -
> > -  As  you have  not signed  this license,  you are  not  required to
> > -  accept  it.   However,  as  the FreeType  Project  is  copyrighted
> > -  material, only  this license, or  another one contracted  with the
> > -  authors, grants you  the right to use, distribute,  and modify it.
> > -  Therefore,  by  using,  distributing,  or modifying  the  FreeType
> > -  Project, you indicate that you understand and accept all the terms
> > -  of this license.
> > -
> > -4. Contacts
> > ------------
> > -
> > -  There are two mailing lists related to FreeType:
> > -
> > -    o freetype@nongnu.org
> > -
> > -      Discusses general use and applications of FreeType, as well as
> > -      future and  wanted additions to the  library and distribution.
> > -      If  you are looking  for support,  start in  this list  if you
> > -      haven't found anything to help you in the documentation.
> > -
> > -    o freetype-devel@nongnu.org
> > -
> > -      Discusses bugs,  as well  as engine internals,  design issues,
> > -      specific licenses, porting, etc.
> > -
> > -  Our home page can be found at
> > -
> > -    https://www.freetype.org
> > -
> > -
> > ---- end of FTL.TXT ---
> > -
> > diff --git a/meta/files/common-licenses/Nauman b/meta/files/common-
> licenses/Nauman
> > deleted file mode 100644
> > index 69ce785ff3..0000000000
> > --- a/meta/files/common-licenses/Nauman
> > +++ /dev/null
> > @@ -1,50 +0,0 @@
> > -
> > -NAUMEN Public License
> > -This software is Copyright (c) NAUMEN (tm) and Contributors.
> > -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 in 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.
> > -
> > -3. The name NAUMEN (tm) must not be used to
> > -endorse or promote products derived from this software without prior
> > -written permission from NAUMEN.
> > -
> > -4. The right to distribute this software or to use it for any
> > -purpose does not give you the right to use Servicemarks (sm)
> > -or Trademarks (tm) of NAUMEN.
> > -
> > -5. If any files originating from NAUMEN or Contributors are modified,
> you must
> > -cause the modified files to carry prominent notices stating
> > -that you changed the files and the date of any change.
> > -
> > -Disclaimer:
> > -
> > -THIS SOFTWARE IS PROVIDED BY NAUMEN "AS IS" AND ANY EXPRESSED
> > -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 NAUMEN
> > -OR ITS 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.
> > -
> > -This software consists of contributions made by NAUMEN
> > -and Contributors. Specific attributions are listed in the
> > -accompanying credits file.
> > -
> > diff --git a/meta/files/common-licenses/tcl b/meta/files/common-
> licenses/tcl
> > deleted file mode 100644
> > index d8049cd9e7..0000000000
> > --- a/meta/files/common-licenses/tcl
> > +++ /dev/null
> > @@ -1,40 +0,0 @@
> > -This software is copyrighted by the Regents of the University of
> > -California, Sun Microsystems, Inc., Scriptics Corporation, ActiveState
> > -Corporation and other parties.  The following terms apply to all files
> > -associated with the software unless explicitly disclaimed in
> > -individual files.
> > -
> > -The authors hereby grant permission to use, copy, modify, distribute,
> > -and license this software and its documentation for any purpose,
> provided
> > -that existing copyright notices are retained in all copies and that
> this
> > -notice is included verbatim in any distributions. No written agreement,
> > -license, or royalty fee is required for any of the authorized uses.
> > -Modifications to this software may be copyrighted by their authors
> > -and need not follow the licensing terms described here, provided that
> > -the new terms are clearly indicated on the first page of each file
> where
> > -they apply.
> > -
> > -IN NO EVENT SHALL THE AUTHORS OR DISTRIBUTORS BE LIABLE TO ANY PARTY
> > -FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
> > -ARISING OUT OF THE USE OF THIS SOFTWARE, ITS DOCUMENTATION, OR ANY
> > -DERIVATIVES THEREOF, EVEN IF THE AUTHORS HAVE BEEN ADVISED OF THE
> > -POSSIBILITY OF SUCH DAMAGE.
> > -
> > -THE AUTHORS AND DISTRIBUTORS SPECIFICALLY DISCLAIM ANY WARRANTIES,
> > -INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
> MERCHANTABILITY,
> > -FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT.  THIS SOFTWARE
> > -IS PROVIDED ON AN "AS IS" BASIS, AND THE AUTHORS AND DISTRIBUTORS HAVE
> > -NO OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS,
> OR
> > -MODIFICATIONS.
> > -
> > -GOVERNMENT USE: If you are acquiring this software on behalf of the
> > -U.S. government, the Government shall have only "Restricted Rights"
> > -in the software and related documentation as defined in the Federal
> > -Acquisition Regulations (FARs) in Clause 52.227.19 (c) (2).  If you
> > -are acquiring the software on behalf of the Department of Defense, the
> > -software shall be classified as "Commercial Computer Software" and the
> > -Government shall have only "Restricted Rights" as defined in Clause
> > -252.227-7014 (b) (3) of DFARs.  Notwithstanding the foregoing, the
> > -authors grant the U.S. Government and others acting in its behalf
> > -permission to use and distribute the software in accordance with the
> > -terms specified in this license.
> > diff --git a/meta/files/common-licenses/vim b/meta/files/common-
> licenses/vim
> > deleted file mode 100644
> > index 4aa818eb24..0000000000
> > --- a/meta/files/common-licenses/vim
> > +++ /dev/null
> > @@ -1,81 +0,0 @@
> > -VIM LICENSE
> > -
> > -I)  There are no restrictions on distributing unmodified copies of Vim
> except
> > -    that they must include this license text.  You can also distribute
> > -    unmodified parts of Vim, likewise unrestricted except that they
> must
> > -    include this license text.  You are also allowed to include
> executables
> > -    that you made from the unmodified Vim sources, plus your own usage
> > -    examples and Vim scripts.
> > -
> > -II) It is allowed to distribute a modified (or extended) version of
> Vim,
> > -    including executables and/or source code, when the following four
> > -    conditions are met:
> > -    1) This license text must be included unmodified.
> > -    2) The modified Vim must be distributed in one of the following
> five ways:
> > -       a) If you make changes to Vim yourself, you must clearly
> describe in
> > -         the distribution how to contact you.  When the maintainer asks
> you
> > -         (in any way) for a copy of the modified Vim you distributed,
> you
> > -         must make your changes, including source code, available to
> the
> > -         maintainer without fee.  The maintainer reserves the right to
> > -         include your changes in the official version of Vim.  What the
> > -         maintainer will do with your changes and under what license
> they
> > -         will be distributed is negotiable.  If there has been no
> negotiation
> > -         then this license, or a later version, also applies to your
> changes.
> > -         The current maintainer is Bram Moolenaar <Bram@vim.org>.  If
> this
> > -         changes it will be announced in appropriate places (most
> likely
> > -         vim.sf.net, www.vim.org and/or comp.editors).  When it is
> completely
> > -         impossible to contact the maintainer, the obligation to send
> him
> > -         your changes ceases.  Once the maintainer has confirmed that
> he has
> > -         received your changes they will not have to be sent again.
> > -       b) If you have received a modified Vim that was distributed as
> > -         mentioned under a) you are allowed to further distribute it
> > -         unmodified, as mentioned at I).  If you make additional
> changes the
> > -         text under a) applies to those changes.
> > -       c) Provide all the changes, including source code, with every
> copy of
> > -         the modified Vim you distribute.  This may be done in the form
> of a
> > -         context diff.  You can choose what license to use for new code
> you
> > -         add.  The changes and their license must not restrict others
> from
> > -         making their own changes to the official version of Vim.
> > -       d) When you have a modified Vim which includes changes as
> mentioned
> > -         under c), you can distribute it without the source code for
> the
> > -         changes if the following three conditions are met:
> > -         - The license that applies to the changes permits you to
> distribute
> > -           the changes to the Vim maintainer without fee or
> restriction, and
> > -           permits the Vim maintainer to include the changes in the
> official
> > -           version of Vim without fee or restriction.
> > -         - You keep the changes for at least three years after last
> > -           distributing the corresponding modified Vim.  When the
> maintainer
> > -           or someone who you distributed the modified Vim to asks you
> (in
> > -           any way) for the changes within this period, you must make
> them
> > -           available to him.
> > -         - You clearly describe in the distribution how to contact you.
> This
> > -           contact information must remain valid for at least three
> years
> > -           after last distributing the corresponding modified Vim, or
> as long
> > -           as possible.
> > -       e) When the GNU General Public License (GPL) applies to the
> changes,
> > -         you can distribute the modified Vim under the GNU GPL version
> 2 or
> > -         any later version.
> > -    3) A message must be added, at least in the output of the
> ":version"
> > -       command and in the intro screen, such that the user of the
> modified Vim
> > -       is able to see that it was modified.  When distributing as
> mentioned
> > -       under 2)e) adding the message is only required for as far as
> this does
> > -       not conflict with the license used for the changes.
> > -    4) The contact information as required under 2)a) and 2)d) must not
> be
> > -       removed or changed, except that the person himself can make
> > -       corrections.
> > -
> > -III) If you distribute a modified version of Vim, you are encouraged to
> use
> > -     the Vim license for your changes and make them available to the
> > -     maintainer, including the source code.  The preferred way to do
> this is
> > -     by e-mail or by uploading the files to a server and e-mailing the
> URL.
> > -     If the number of changes is small (e.g., a modified Makefile) e-
> mailing a
> > -     context diff will do.  The e-mail address to be used is
> > -     <maintainer@vim.org>
> > -
> > -IV)  It is not allowed to remove this license from the distribution of
> the Vim
> > -     sources, parts of it or from a modified version.  You may use this
> > -     license for previous Vim releases instead of the license that they
> came
> > -     with, at your option.
> > -
> > -===
> > -Read more about this license at
> http://vimdoc.sourceforge.net/htmldoc/uganda.html#license
> >
> > 
> >