Oracle hereby elects to license all components subject to the election between GPL v2 and the Ruby License under the Ruby License.  

Oracle hereby elects to license all components subject to the election between GPL v2 and the MIT under the MIT License.  

Oracle hereby elects to license all components subject to the election between GPL v2 and the Artistic License under the Artistic License.  

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.

regex.[ch]:

  These files are under LGPL.  Treat them as LGPL says. (See the file

  LGPL for details)

    Extended regular expression matching and search library.

    Copyright (C) 1993, 94, 95, 96, 97, 98 Free Software Foundation, Inc.

    The GNU C Library is free software; you can redistribute it and/or

    modify it under the terms of the GNU Library General Public License as

    published by the Free Software Foundation; either version 2 of the

    License, or (at your option) any later version.

    The GNU C Library 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

    Library General Public License for more details.

    You should have received a copy of the GNU Library General Public

    License along with the GNU C Library; see the file LGPL.  If not,

    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,

    Boston, MA 02111-1307, USA.  */

    Multi-byte extension added May, 1993 by t^2 (Takahiro Tanimoto)

    Last change: May 21, 1993 by t^2

    removed gapped buffer support, multiple syntax support by matz <[email protected]>

    Perl5 extension added by matz <[email protected]>

    UTF-8 extension added Jan 16 1999 by Yoshida Masato  <[email protected]>

configure:

  This file is free software.

    Copyright (C) 1992, 93, 94, 95, 96 Free Software Foundation, Inc.

    This configure script is free software; the Free Software Foundation

    gives unlimited permission to copy, distribute and modify it.

config.guess:

config.sub:

  As long as you distribute these files with the file configure, they

  are covered under the Ruby's license.

      Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999

      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

    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.

    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

    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.

parse.c: 

  This file is licensed under the GPL, but is 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, 2001, 2002, 2003, 2004, 2005, 2006 

     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 2, 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, write to the Free Software 

     Foundation, Inc., 51 Franklin Street, Fifth Floor, 

     Boston, MA 02110-1301, USA.  */ 

  /* 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.  */ 

util.c (partly):

win32/win32.[ch]:

  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.

random.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).

    Copyright (C) 1997 - 2002, Makoto Matsumoto and Takuji Nishimura,

    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. 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: [email protected]

st.[ch]:

x68/*:

missing/alloca.c:

missing/dup2.c:

missing/finite.c:

missing/hypot.c:

missing/isinf.c:

missing/isnan.c:

missing/memcmp.c:

missing/memmove.c:

missing/strcasecmp.c:

missing/strchr.c:

missing/streror.c:

missing/strftime.c:

missing/strncasecmp.c:

missing/strstr.c:

missing/strtol.c:

ext/digest/sha1/sha1.[ch]:

  These files are all under public domain.

missing/strtod.c:

  This file will not be used on most platforms depending on how the

  configure script results.  In any case you must not receive any fee

  with the file itself.

    Copyright (c) 1988-1993 The Regents of the University of California.

    Copyright (c) 1994 Sun Microsystems, Inc.

    Permission to use, copy, modify, and distribute this

    software and its documentation for any purpose and without

    fee is hereby granted, provided that the above copyright

    notice appear in all copies.  The University of California

    makes no representations about the suitability of this

    software for any purpose.  It is provided "as is" without

    express or implied warranty.

missing/strtoul.c:

  This file will not be used on most platforms depending on how the

  configure script results.  In any case you must not receive any fee

  with the file itself.

    Copyright 1988 Regents of the University of California

    Permission to use, copy, modify, and distribute this

    software and its documentation for any purpose and without

    fee is hereby granted, provided that the above copyright

    notice appear in all copies.  The University of California

    makes no representations about the suitability of this

    software for any purpose.  It is provided "as is" without

    express or implied warranty.

missing/erf.c:

missing/crypt.c:

missing/vsnprintf.c:

  This file is under the old-style BSD license.  Note that the

  paragraph 3 below is now null and void.

    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.

    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 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.

    IMPORTANT NOTE:

    --------------

    From ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change

    paragraph 3 above is now null and void.

ext/digest/md5/md5.[ch]:

  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

    [email protected]

ext/digest/rmd160/rmd160.[ch]:

  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

    Copyright (c) Katholieke Universiteit Leuven

    1996, All Rights Reserved

ext/digest/rmd160/rmd160hl.c:

ext/digest/sha1/sha1hl.c:

  These files are under the beer-ware license.

    "THE BEER-WARE LICENSE" (Revision 42):

    <[email protected]> wrote this file.  As long as you retain this notice you

    can do whatever you want with this stuff. If we meet some day, and you think

    this stuff is worth it, you can buy me a beer in return.   Poul-Henning Kamp

ext/digest/sha2/sha2.[ch]:

ext/digest/sha2/sha2hl.c:

  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/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/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)

    (c) 1995 Microsoft Corporation. All rights reserved.

    Developed by ActiveWare Internet Corp., http://www.ActiveWare.com

    Other modifications Copyright (c) 1997, 1998 by Gurusamy Sarathy

    <[email protected]> and Jan Dubois <[email protected]>

    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.

--------------------------------------------------------------------------------

Ruby is copyrighted free software by Yukihiro Matsumoto <[email protected]>. 

You can redistribute it and/or modify it under either the terms of the GPL 

version 2 (see the file GPL), 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 binaries 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 binary form, 

     provided that you do at least ONE of the following: 

       a) distribute the binaries 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 binaries 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).  But some files in the distribution 

     are not written by the author, so that they are not under these terms. 

     For the list of those files and their copying conditions, see the 

     file LEGAL. 

     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. 

------------------------------------------------------------------------------

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 GPL (see the GPL.txt file), 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) rename any non-standard executables so the names do not conflict 

          with standard executables, which must also be provided. 

       d) make other distribution arrangements with the author. 

  3. You may distribute the software in object code or executable