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📂 /opt/alt/ruby33/share/licenses/alt-ruby33-libs

✎ EDIT: LEGAL ← BACK

# -*- rdoc -*-

= LEGAL NOTICE INFORMATION
--------------------------

All the files in this distribution are covered under either the Ruby's
license (see the file COPYING) or public-domain except some files
mentioned below.

[addr2line.c]

A part of this file is from FreeBSD.

>>>
    Copyright (c) 1986, 1988, 1991, 1993::
    The Regents of the University of California.  All rights reserved.

All or some portions of this file are derived from material licensed
    to the University of California by American Telephone and Telegraph
    Co. or Unix System Laboratories, Inc. and are reproduced herein with
    the permission of UNIX System Laboratories, Inc.

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.
    4. Neither the name of the University nor the names of its contributors
       may be used to endorse or promote products derived from this software
       without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.

@(#)subr_prf.c	8.3 (Berkeley) 1/21/94

[ccan/build_assert/build_assert.h]
[ccan/check_type/check_type.h]
[ccan/container_of/container_of.h]
[ccan/str/str.h]

These files are licensed under the {CC0}[https://creativecommons.org/choose/zero/].

[ccan/list/list.h]

This file is licensed under the {MIT License}[rdoc-label:label-MIT+License].

[coroutine]

Unless otherwise specified, these files are licensed under the
  {MIT License}[rdoc-label:label-MIT+License].

[include/ruby/onigmo.h]
[include/ruby/oniguruma.h]
[regcomp.c]
[regenc.c]
[regenc.h]
[regerror.c]
[regexec.c]
[regint.h]
[regparse.c]
[regparse.h]
[enc/ascii.c]
[enc/big5.c]
[enc/cp949.c]
[enc/emacs_mule.c]
[enc/encdb.c]
[enc/euc_jp.c]
[enc/euc_kr.c]
[enc/euc_tw.c]
[enc/gb18030.c]
[enc/gb2312.c]
[enc/gbk.c]
[enc/iso_8859_1.c]
[enc/iso_8859_10.c]
[enc/iso_8859_11.c]
[enc/iso_8859_13.c]
[enc/iso_8859_14.c]
[enc/iso_8859_15.c]
[enc/iso_8859_16.c]
[enc/iso_8859_2.c]
[enc/iso_8859_3.c]
[enc/iso_8859_4.c]
[enc/iso_8859_5.c]
[enc/iso_8859_6.c]
[enc/iso_8859_7.c]
[enc/iso_8859_8.c]
[enc/iso_8859_9.c]
[enc/koi8_r.c]
[enc/koi8_u.c]
[enc/shift_jis.c]
[enc/unicode.c]
[enc/us_ascii.c]
[enc/utf_16be.c]
[enc/utf_16le.c]
[enc/utf_32be.c]
[enc/utf_32le.c]
[enc/utf_8.c]
[enc/windows_1251.c]
[enc/windows_31j.c]

Onigmo (Oniguruma-mod) LICENSE

>>>
    Copyright (c) 2002-2009::  K.Kosako  <sndgk393 AT ybb DOT ne DOT jp>
    Copyright (c) 2011-2014::  K.Takata  <kentkt AT csc DOT jp>
    All rights reserved.

THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.

Oniguruma LICENSE

>>>
    Copyright (c) 2002-2009::  K.Kosako  <sndgk393 AT ybb DOT ne DOT jp>
    All rights reserved.

* https://github.com/k-takata/Onigmo/
  * https://github.com/kkos/oniguruma
  * https://svnweb.freebsd.org/ports/head/devel/oniguruma/

When this software is partly used or it is distributed with Ruby,
    this of Ruby follows the license of Ruby.

[enc/windows_1250.c]
[enc/windows_1252.c]

>>>
    Copyright (c) 2006-2007::  Byte      <byte AT mail DOT kna DOT ru>
                               K.Kosako  <sndgk393 AT ybb DOT ne DOT jp>
    All rights reserved.

[enc/cesu_8.c]
[enc/windows_1253.c]
[enc/windows_1254.c]
[enc/windows_1257.c]

>>>
    Copyright (c) 2002-2007::  K.Kosako  <sndgk393 AT ybb DOT ne DOT jp>
    All rights reserved.

[enc/trans/GB/GB12345%UCS.src]
[enc/trans/GB/UCS%GB12345.src]
[enc/trans/GB/GB2312%UCS.src]
[enc/trans/GB/UCS%GB2312.src]

These files have this explanatory texts.

>>>
    This mapping data was created from files provided by Unicode, Inc.
    (The Unicode Consortium). The files were used to create a product supporting
    Unicode, as explicitly permitted in the files' copyright notices.
    Please note that Unicode, Inc. never made any claims as to fitness of these
    files for any particular purpose, and has ceased to publish the files many
    years ago.

[enc/trans/JIS/JISX0201-KANA%UCS.src]
[enc/trans/JIS/JISX0208\@1990%UCS.src]
[enc/trans/JIS/JISX0212%UCS.src]
[enc/trans/JIS/UCS%JISX0201-KANA.src]
[enc/trans/JIS/UCS%JISX0208@1990.src]
[enc/trans/JIS/UCS%JISX0212.src]

These files are copyrighted as the following.

>>>
    © 2015 Unicode®, Inc.

For terms of use, see http://www.unicode.org/terms_of_use.html

[enc/trans/JIS/JISX0213-1%UCS@BMP.src]
[enc/trans/JIS/JISX0213-1%UCS@SIP.src]
[enc/trans/JIS/JISX0213-2%UCS@BMP.src]
[enc/trans/JIS/JISX0213-2%UCS@SIP.src]

These files are copyrighted as the following.

>>>
    Copyright (C) 2001:: earthian@tama.or.jp, All Rights Reserved.
    Copyright (C) 2001:: I'O, All Rights Reserved.
    Copyright (C) 2006:: Project X0213, All Rights Reserved.
    You can use, modify, distribute this table freely.

[enc/trans/JIS/UCS@BMP%JISX0213-1.src]
[enc/trans/JIS/UCS@BMP%JISX0213-2.src]
[enc/trans/JIS/UCS@SIP%JISX0213-1.src]
[enc/trans/JIS/UCS@SIP%JISX0213-2.src]

These files are copyrighted as the following.

>>>
    Copyright (C) 2001:: earthian@tama.or.jp, All Rights Reserved.
    Copyright (C) 2001:: I'O, All Rights Reserved.
    You can use, modify, distribute this table freely.

[enc/trans/ucm/glibc-BIG5-2.3.3.ucm]
[enc/trans/ucm/glibc-BIG5HKSCS-2.3.3.ucm]

>>>
    Copyright (C) 2001-2005:: International Business Machines
                              Corporation and others.  All Rights Reserved.

[enc/trans/ucm/windows-950-2000.ucm]
[enc/trans/ucm/windows-950_hkscs-2001.ucm]

>>>
    Copyright (C) 2001-2002:: International Business Machines
                              Corporation and others.  All Rights Reserved.

[configure]

This file is free software.

>>>
    Copyright (C) 1992-1996, 1998-2012:: Free Software Foundation, Inc.

This configure script is free software; the Free Software Foundation
    gives unlimited permission to copy, distribute and modify it.

[tool/config.guess]
[tool/config.sub]

As long as you distribute these files with the file configure, they
  are covered under the Ruby's license.

>>>
    Copyright 1992-2018:: Free Software Foundation, Inc.

This file is free software; you can redistribute it and/or modify it
    under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 3 of the License, or
    (at your option) any later version.

This program is distributed in the hope that it will be useful, but
    WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    General Public License for more details.

You should have received a copy of the GNU General Public License
    along with this program; if not, see <https://www.gnu.org/licenses/>.

As a special exception to the GNU General Public License, if you
    distribute this file as part of a program that contains a
    configuration script generated by Autoconf, you may include it under
    the same distribution terms that you use for the rest of that
    program.  This Exception is an additional permission under section 7
    of the GNU General Public License, version 3 ("GPLv3").

[tool/lib/test/*]
[tool/lib/core_assertions.rb]

Some of methods on these files are based on MiniTest 4. MiniTest 4 is
  distributed under the MIT License.

>>>
    Copyright (c) Ryan Davis, seattle.rb

Permission is hereby granted, free of charge, to any person obtaining
    a copy of this software and associated documentation files (the
    'Software'), to deal in the Software without restriction, including
    without limitation the rights to use, copy, modify, merge, publish,
    distribute, sublicense, and/or sell copies of the Software, and to
    permit persons to whom the Software is furnished to do so, subject to
    the following conditions:

The above copyright notice and this permission notice shall be
    included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
    EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
    MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
    IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
    CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
    TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
    SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

[parse.c]
[parse.h]

These files are licensed under the GPL, but are incorporated into Ruby and
  redistributed under the terms of the Ruby license, as permitted by the
  exception to the GPL below.

>>>
    Copyright (C) 1984, 1989-1990, 2000-2015, 2018:: Free Software Foundation, Inc.

This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.

As a special exception, you may create a larger work that contains
    part or all of the Bison parser skeleton and distribute that work
    under terms of your choice, so long as that work isn't itself a
    parser generator using the skeleton or a modified version thereof
    as a parser skeleton.  Alternatively, if you modify or redistribute
    the parser skeleton itself, you may (at your option) remove this
    special exception, which will cause the skeleton and the resulting
    Bison output files to be licensed under the GNU General Public
    License without this special exception.

This special exception was added by the Free Software Foundation in
    version 2.2 of Bison.

[missing/dtoa.c]

This file is under these licenses.

>>>
    Copyright (c) 1991, 2000, 2001:: by Lucent Technologies.

Permission to use, copy, modify, and distribute this software for any
    purpose without fee is hereby granted, provided that this entire notice
    is included in all copies of any software which is or includes a copy
    or modification of this software and in all copies of the supporting
    documentation for such software.

THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR IMPLIED
    WARRANTY.  IN PARTICULAR, NEITHER THE AUTHOR NOR LUCENT MAKES ANY
    REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE MERCHANTABILITY
    OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR PURPOSE.

>>>
    Copyright (c) 2004-2008:: David Schultz <das@FreeBSD.ORG>
                              All rights reserved.

[win32/win32.c]
[include/ruby/win32.h]

You can apply the Artistic License to these files. (or GPL,
  alternatively)

>>>
    Copyright (c) 1993:: Intergraph Corporation

You may distribute under the terms of either the GNU General Public
    License or the Artistic License, as specified in the perl README file.

[missing/mt19937.c]

This file is under the new-style BSD license.

>>>
    A C-program for MT19937, with initialization improved 2002/2/10.::
    Coded by Takuji Nishimura and Makoto Matsumoto.

This is a faster version by taking Shawn Cokus's optimization,
    Matthe Bellew's simplification, Isaku Wada's real version.

Before using, initialize the state by using init_genrand(seed)
    or init_by_array(init_key, key_length).

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.

3. The names of its contributors may not be used to endorse or promote
       products derived from this software without specific prior written
       permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT OWNER 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.

Any feedback is very welcome.
    http://www.math.keio.ac.jp/matumoto/emt.html
    email: matumoto@math.keio.ac.jp

The Wayback Machine url: http://web.archive.org/web/19990429082237/http://www.math.keio.ac.jp/matumoto/emt.html

[missing/procstat_vm.c]

This file is under the new-style BSD license.

>>>
    Copyright (c) 2007:: Robert N. M. Watson
                         All rights reserved.

$FreeBSD: head/usr.bin/procstat/procstat_vm.c 261780 2014-02-11 21:57:37Z jhb $

[vsnprintf.c]

This file is under the {old-style BSD license}[rdoc-label:label-Old-style+BSD+license].

>>>
    Copyright (c) 1990, 1993::
    The Regents of the University of California.  All rights reserved.

This code is derived from software contributed to Berkeley by
    Chris Torek.

[st.c]
[strftime.c]
[include/ruby/st.h]
[missing/acosh.c]
[missing/alloca.c]
[missing/erf.c]
[missing/hypot.c]
[missing/lgamma_r.c]
[missing/memcmp.c]
[missing/memmove.c]
[missing/strchr.c]
[missing/strerror.c]
[missing/strstr.c]
[missing/tgamma.c]
[ext/date/date_strftime.c]
[ext/digest/sha1/sha1.c]
[ext/digest/sha1/sha1.h]

These files are all under public domain.

[missing/crypt.c]

This file is under the {old-style BSD license}[rdoc-label:label-Old-style+BSD+license].

>>>
    Copyright (c) 1989, 1993::
    The Regents of the University of California.  All rights reserved.

This code is derived from software contributed to Berkeley by
    Tom Truscott.

[missing/setproctitle.c]

This file is under the {old-style BSD license}[rdoc-label:label-Old-style+BSD+license].

>>>
    Copyright 2003:: Damien Miller
    Copyright (c) 1983, 1995-1997:: Eric P. Allman
    Copyright (c) 1988, 1993::
    The Regents of the University of California.  All rights reserved.

[missing/strlcat.c]
[missing/strlcpy.c]

These files are under an ISC-style license.

>>>
    Copyright (c) 1998, 2015:: Todd C. Miller <Todd.Miller@courtesan.com>

Permission to use, copy, modify, and distribute this software for any
    purpose with or without fee is hereby granted, provided that the above
    copyright notice and this permission notice appear in all copies.

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.

[missing/langinfo.c]

This file is from http://www.cl.cam.ac.uk/~mgk25/ucs/langinfo.c.
  Ruby uses a modified version. The file contains the following
  author/copyright notice:

>>>
    Markus.Kuhn@cl.cam.ac.uk -- 2002-03-11::
    Permission to use, copy, modify, and distribute this software
    for any purpose and without fee is hereby granted. The author
    disclaims all warranties with regard to this software.

[ext/digest/md5/md5.c]
[ext/digest/md5/md5.h]

These files are under the following license.  Ruby uses modified
  versions of them.

>>>
    Copyright (C) 1999, 2000:: Aladdin Enterprises.  All rights reserved.

This software is provided 'as-is', without any express or implied
    warranty.  In no event will the authors be held liable for any damages
    arising from the use of this software.

Permission is granted to anyone to use this software for any purpose,
    including commercial applications, and to alter it and redistribute it
    freely, subject to the following restrictions:

1. The origin of this software must not be misrepresented; you must not
       claim that you wrote the original software. If you use this software
       in a product, an acknowledgment in the product documentation would be
       appreciated but is not required.
    2. Altered source versions must be plainly marked as such, and must not be
       misrepresented as being the original software.
    3. This notice may not be removed or altered from any source distribution.

L. Peter Deutsch
    ghost@aladdin.com

[ext/digest/rmd160/rmd160.c]
[ext/digest/rmd160/rmd160.h]

These files have the following copyright information, and by the
  author we are allowed to use it under the new-style BSD license.

>>>
    AUTHOR::  Antoon Bosselaers, ESAT-COSIC
              (Arranged for libc by Todd C. Miller)
    DATE::    1 March 1996

[ext/digest/sha2/sha2.c]
[ext/digest/sha2/sha2.h]

These files are under the new-style BSD license.

>>>
    Copyright 2000:: Aaron D. Gifford.  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.
    3. Neither the name of the copyright holder nor the names of contributors
       may be used to endorse or promote products derived from this software
       without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) AND CONTRIBUTOR(S) ``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(S) OR CONTRIBUTOR(S) 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.

[ext/json/generator/generator.c]

The file contains the following copyright notice.

>>>
    Copyright 2001-2004:: Unicode, Inc.

Disclaimer::

This source code is provided as is by Unicode, Inc. No claims are
      made as to fitness for any particular purpose. No warranties of any
      kind are expressed or implied. The recipient agrees to determine
      applicability of information provided. If this file has been
      purchased on magnetic or optical media from Unicode, Inc., the
      sole remedy for any claim will be exchange of defective media
      within 90 days of receipt.

Limitations on Rights to Redistribute This Code::

Unicode, Inc. hereby grants the right to freely use the information
      supplied in this file in the creation of products supporting the
      Unicode Standard, and to make copies of this file in any form
      for internal or external distribution as long as this notice
      remains attached.

[ext/nkf/nkf-utf8/config.h]
[ext/nkf/nkf-utf8/nkf.c]
[ext/nkf/nkf-utf8/utf8tbl.c]

These files are under the following license.  So to speak, it is
  copyrighted semi-public-domain software.

>>>
    Copyright (C) 1987:: Fujitsu LTD. (Itaru ICHIKAWA)

Everyone is permitted to do anything on this program
    including copying, modifying, improving,
    as long as you don't try to pretend that you wrote it.
    i.e., the above copyright notice has to appear in all copies.
    Binary distribution requires original version messages.
    You don't have to ask before copying, redistribution or publishing.
    THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE.

[ext/psych]
[test/psych]

The files under these directories are under the following license.

>>>
    Copyright 2009:: Aaron Patterson, et al.

Permission is hereby granted, free of charge, to any person obtaining a copy of
    this software and associated documentation files (the 'Software'), to deal in
    the Software without restriction, including without limitation the rights to
    use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
    of the Software, and to permit persons to whom the Software is furnished to do
    so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
    copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
    SOFTWARE.

[ext/pty/pty.c]

>>>
    C) Copyright 1998:: by Akinori Ito.

This software may be redistributed freely for this purpose, in full
    or in part, provided that this entire copyright notice is included
    on any copies of this software and applications and derivations thereof.

This software is provided on an "as is" basis, without warranty of any
    kind, either expressed or implied, as to any matter including, but not
    limited to warranty of fitness of purpose, or merchantability, or
    results obtained from use of this software.

[ext/socket/addrinfo.h]
[ext/socket/getaddrinfo.c]
[ext/socket/getnameinfo.c]

These files are under the new-style BSD license.

>>>
    Copyright (C) 1995, 1996, 1997, 1998, and 1999:: WIDE Project.
    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.
    3. Neither the name of the project nor the names of its contributors
       may be used to endorse or promote products derived from this software
       without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE PROJECT 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 PROJECT 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.

[ext/win32ole/win32ole.c]

You can apply the Artistic License to this file. (or GPL,
  alternatively)

You may distribute under the terms of either the GNU General Public
    License or the Artistic License, as specified in the README file
    of the Perl distribution.

The Wayback Machine url: http://web.archive.org/web/19970607104352/http://www.activeware.com:80/

[lib/rdoc/generator/template/darkfish/css/fonts.css]

This file is licensed under the {SIL Open Font License}[http://scripts.sil.org/OFL].

[spec/mspec]
[spec/ruby]

The files under these directories are under the following license.

Permission is hereby granted, free of charge, to any person
    obtaining a copy of this software and associated documentation
    files (the "Software"), to deal in the Software without
    restriction, including without limitation the rights to use,
    copy, modify, merge, publish, distribute, sublicense, and/or sell
    copies of the Software, and to permit persons to whom the
    Software is furnished to do so, subject to the following
    conditions:

The above copyright notice and this permission notice shall be
    included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
    EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
    OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
    NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
    HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
    WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
    OTHER DEALINGS IN THE SOFTWARE.

[lib/rubygems.rb]
[lib/rubygems]
[test/rubygems]

RubyGems is under the following license.

>>>
    RubyGems is copyrighted free software by Chad Fowler, Rich Kilmer, Jim
    Weirich and others.  You can redistribute it and/or modify it under
    either the terms of the {MIT license}[rdoc-label:label-MIT+License], or the conditions
    below:

1. You may make and give away verbatim copies of the source form of the
       software without restriction, provided that you duplicate all of the
       original copyright notices and associated disclaimers.

2. You may modify your copy of the software in any way, provided that
       you do at least ONE of the following:

a. place your modifications in the Public Domain or otherwise
          make them Freely Available, such as by posting said
          modifications to Usenet or an equivalent medium, or by allowing
          the author to include your modifications in the software.

b. use the modified software only within your corporation or
          organization.

c. give non-standard executables non-standard names, with
          instructions on where to get the original software distribution.

d. make other distribution arrangements with the author.

3. You may distribute the software in object code or executable
       form, provided that you do at least ONE of the following:

a. distribute the executables and library files of the software,
          together with instructions (in the manual page or equivalent)
          on where to get the original distribution.

b. accompany the distribution with the machine-readable source of
          the software.

c. give non-standard executables non-standard names, with
          instructions on where to get the original software distribution.

d. make other distribution arrangements with the author.

4. You may modify and include the part of the software into any other
       software (possibly commercial).

5. The scripts and library files supplied as input to or produced as
       output from the software do not automatically fall under the
       copyright of the software, but belong to whomever generated them,
       and may be sold commercially, and may be aggregated with this
       software.

6. THIS SOFTWARE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR
       IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
       WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
       PURPOSE.

[lib/bundler]
[lib/bundler.rb]
[spec/bundler]

Bundler is under the following license.

>>>
    Portions copyright (c) 2010:: Andre Arko
    Portions copyright (c) 2009:: Engine Yard