--- a/components/slib/slib.license Wed Apr 30 06:52:19 2014 -0700
+++ b/components/slib/slib.license Wed Apr 30 09:30:49 2014 -0700
@@ -1,157 +1,508 @@
-Copyright 1992 Andrew Wilcox.
+SLIB LICENSE
+
+Each file in SLIB (over a dozen lines in length) is either in the public
+domain, or comes with a statement of terms permitting users to copy,
+modify, and redistribute it.
-You may freely copy, redistribute and modify this package.
+The comments at the beginning each file (containing over a dozen lines)
+must specify its terms. For instance, the comments at the beginning of
+"Template.scm" declare that it is in the public domain:
+;;; "Template.scm" configuration template of *features* for Scheme
+;;; Author: Aubrey Jaffer
+;;;
+;;; This code is in the public domain.
---------------------------------------------------------------------------------
+Each copyrighted file lists the names of the copyright holders and gives
+permissions to copy, modify, and redistribute the file. For instance,
+the beginning of "require.scm" states:
-Copyright (C) 1989-2008 Aubrey Jaffer
-Copyright (C) 2000 Colin Walters
-Copyright (C) 2002, 2003 Ivan Shmakov <[email protected]>
-Copyright (C) 2003-2004 Lars Buitinck
-Copyright (C) 1991-1993, 1996, 1998-2002 Radey Shouman.
-Copyright (C) 2003 Sven Hartrumpf
+;;;; Implementation of VICINITY and MODULES for Scheme
+;Copyright (C) 1991, 1992, 1993, 1994, 1997 Aubrey Jaffer
+;
+;Permission to copy this software, to modify it, to redistribute it,
+;to distribute modified versions, and to use it for any purpose is
+;granted, subject to the following restrictions and understandings.
+;
+;1. Any copy made of this software must include this copyright notice
+;in full.
+;
+;2. I have made no warranty or representation that the operation of
+;this software will be error-free, and I am under no obligation to
+;provide any services, by way of maintenance, update, or otherwise.
+;
+;3. In conjunction with products arising from the use of this
+;material, there shall be no use of my name in any advertising,
+;promotional, or sales literature without prior written consent in
+;each case.
+----------------------------------------------------------------
+@c The GNU Free Documentation License.
+@center Version 1.2, November 2002
-Permission to copy this software, to modify it, to redistribute it,
-to distribute modified versions, and to use it for any purpose is
-granted, subject to the following restrictions and understandings.
+@c This file is intended to be included within another document,
+@c hence no sectioning command or @node.
+
+@display
+Copyright @copyright{} 2000,2001,2002 Free Software Foundation, Inc.
+51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
+
+Everyone is permitted to copy and distribute verbatim copies
+of this license document, but changing it is not allowed.
+@end display
+
+@enumerate 0
+@item
+PREAMBLE
-1. Any copy made of this software must include this copyright notice
-in full.
+The purpose of this License is to make a manual, textbook, or other
+functional and useful document @dfn{free} in the sense of freedom: to
+assure everyone the effective freedom to copy and redistribute it,
+with or without modifying it, either commercially or noncommercially.
+Secondarily, this License preserves for the author and publisher a way
+to get credit for their work, while not being considered responsible
+for modifications made by others.
-2. I have made no warranty or representation that the operation of
-this software will be error-free, and I am under no obligation to
-provide any services, by way of maintenance, update, or otherwise.
+This License is a kind of ``copyleft'', which means that derivative
+works of the document must themselves be free in the same sense. It
+complements the GNU General Public License, which is a copyleft
+license designed for free software.
+
+We have designed this License in order to use it for manuals for free
+software, because free software needs free documentation: a free
+program should come with manuals providing the same freedoms that the
+software does. But this License is not limited to software manuals;
+it can be used for any textual work, regardless of subject matter or
+whether it is published as a printed book. We recommend this License
+principally for works whose purpose is instruction or reference.
+
+@item
+APPLICABILITY AND DEFINITIONS
-3. In conjunction with products arising from the use of this
-material, there shall be no use of my name in any advertising,
-promotional, or sales literature without prior written consent in
-each case.
+This License applies to any manual or other work, in any medium, that
+contains a notice placed by the copyright holder saying it can be
+distributed under the terms of this License. Such a notice grants a
+world-wide, royalty-free license, unlimited in duration, to use that
+work under the conditions stated herein. The ``Document'', below,
+refers to any such manual or work. Any member of the public is a
+licensee, and is addressed as ``you''. You accept the license if you
+copy, modify or distribute the work in a way requiring permission
+under copyright law.
+
+A ``Modified Version'' of the Document means any work containing the
+Document or a portion of it, either copied verbatim, or with
+modifications and/or translated into another language.
--------------------------------------------------------------------------------
+A ``Secondary Section'' is a named appendix or a front-matter section
+of the Document that deals exclusively with the relationship of the
+publishers or authors of the Document to the Document's overall
+subject (or to related matters) and contains nothing that could fall
+directly within that overall subject. (Thus, if the Document is in
+part a textbook of mathematics, a Secondary Section may not explain
+any mathematics.) The relationship could be a matter of historical
+connection with the subject or with related matters, or of legal,
+commercial, philosophical, ethical or political position regarding
+them.
-COPYRIGHT (c) Kenneth Dickey 1992
+The ``Invariant Sections'' are certain Secondary Sections whose titles
+are designated, as being those of Invariant Sections, in the notice
+that says that the Document is released under this License. If a
+section does not fit the above definition of Secondary then it is not
+allowed to be designated as Invariant. The Document may contain zero
+Invariant Sections. If the Document does not identify any Invariant
+Sections then there are none.
-This software may be used for any purpose whatever without warranty
-of any kind.
+The ``Cover Texts'' are certain short passages of text that are listed,
+as Front-Cover Texts or Back-Cover Texts, in the notice that says that
+the Document is released under this License. A Front-Cover Text may
+be at most 5 words, and a Back-Cover Text may be at most 25 words.
--------------------------------------------------------------------------------
+A ``Transparent'' copy of the Document means a machine-readable copy,
+represented in a format whose specification is available to the
+general public, that is suitable for revising the document
+straightforwardly with generic text editors or (for images composed of
+pixels) generic paint programs or (for drawings) some widely available
+drawing editor, and that is suitable for input to text formatters or
+for automatic translation to a variety of formats suitable for input
+to text formatters. A copy made in an otherwise Transparent file
+format whose markup, or absence of markup, has been arranged to thwart
+or discourage subsequent modification by readers is not Transparent.
+An image format is not Transparent if used for any substantial amount
+of text. A copy that is not ``Transparent'' is called ``Opaque''.
-Copyright (C) 1992 R. Kent Dybvig
+Examples of suitable formats for Transparent copies include plain
+@sc{ascii} without markup, Texinfo input format, La@TeX{} input
+format, @acronym{SGML} or @acronym{XML} using a publicly available
+@acronym{DTD}, and standard-conforming simple @acronym{HTML},
+PostScript or @acronym{PDF} designed for human modification. Examples
+of transparent image formats include @acronym{PNG}, @acronym{XCF} and
+@acronym{JPG}. Opaque formats include proprietary formats that can be
+read and edited only by proprietary word processors, @acronym{SGML} or
+@acronym{XML} for which the @acronym{DTD} and/or processing tools are
+not generally available, and the machine-generated @acronym{HTML},
+PostScript or @acronym{PDF} produced by some word processors for
+output purposes only.
+
+The ``Title Page'' means, for a printed book, the title page itself,
+plus such following pages as are needed to hold, legibly, the material
+this License requires to appear in the title page. For works in
+formats which do not have any title page as such, ``Title Page'' means
+the text near the most prominent appearance of the work's title,
+preceding the beginning of the body of the text.
-Permission to copy this software, in whole or in part, to use this
-software for any lawful purpose, and to redistribute this software
-is granted subject to the restriction that all copies made of this
-software must include this copyright notice in full. This software
-is provided AS IS, with NO WARRANTY, EITHER EXPRESS OR IMPLIED,
-INCLUDING BUT NOT LIMITED TO IMPLIED WARRANTIES OF MERCHANTABILITY
-OR FITNESS FOR ANY PARTICULAR PURPOSE. IN NO EVENT SHALL THE
-AUTHORS BE LIABLE FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES OF ANY
-NATURE WHATSOEVER.
+A section ``Entitled XYZ'' means a named subunit of the Document whose
+title either is precisely XYZ or contains XYZ in parentheses following
+text that translates XYZ in another language. (Here XYZ stands for a
+specific section name mentioned below, such as ``Acknowledgements'',
+``Dedications'', ``Endorsements'', or ``History''.) To ``Preserve the Title''
+of such a section when you modify the Document means that it remains a
+section ``Entitled XYZ'' according to this definition.
+
+The Document may include Warranty Disclaimers next to the notice which
+states that this License applies to the Document. These Warranty
+Disclaimers are considered to be included by reference in this
+License, but only as regards disclaiming warranties: any other
+implication that these Warranty Disclaimers may have is void and has
+no effect on the meaning of this License.
--------------------------------------------------------------------------------
+@item
+VERBATIM COPYING
-Copyright (c) 1991, Marc Feeley
+You may copy and distribute the Document in any medium, either
+commercially or noncommercially, provided that this License, the
+copyright notices, and the license notice saying this License applies
+to the Document are reproduced in all copies, and that you add no other
+conditions whatsoever to those of this License. You may not use
+technical measures to obstruct or control the reading or further
+copying of the copies you make or distribute. However, you may accept
+compensation in exchange for copies. If you distribute a large enough
+number of copies you must also follow the conditions in section 3.
+
+You may also lend copies, under the same conditions stated above, and
+you may publicly display copies.
+
+@item
+COPYING IN QUANTITY
-Distribution restrictions: none
-
--------------------------------------------------------------------------------
+If you publish printed copies (or copies in media that commonly have
+printed covers) of the Document, numbering more than 100, and the
+Document's license notice requires Cover Texts, you must enclose the
+copies in covers that carry, clearly and legibly, all these Cover
+Texts: Front-Cover Texts on the front cover, and Back-Cover Texts on
+the back cover. Both covers must also clearly and legibly identify
+you as the publisher of these copies. The front cover must present
+the full title with all words of the title equally prominent and
+visible. You may add other material on the covers in addition.
+Copying with changes limited to the covers, as long as they preserve
+the title of the Document and satisfy these conditions, can be treated
+as verbatim copying in other respects.
-Copyright (C) 1995 Mikael Djurfeldt
+If the required texts for either cover are too voluminous to fit
+legibly, you should put the first ones listed (as many as fit
+reasonably) on the actual cover, and continue the rest onto adjacent
+pages.
-This code is in the public domain.
-
--------------------------------------------------------------------------------
+If you publish or distribute Opaque copies of the Document numbering
+more than 100, you must either include a machine-readable Transparent
+copy along with each Opaque copy, or state in or with each Opaque copy
+a computer-network location from which the general network-using
+public has access to download using public-standard network protocols
+a complete Transparent copy of the Document, free of added material.
+If you use the latter option, you must take reasonably prudent steps,
+when you begin distribution of Opaque copies in quantity, to ensure
+that this Transparent copy will remain thus accessible at the stated
+location until at least one year after the last time you distribute an
+Opaque copy (directly or through your agents or retailers) of that
+edition to the public.
-Copyright (c) 1998, 1999 by Olin Shivers.
+It is requested, but not required, that you contact the authors of the
+Document well before redistributing any large number of copies, to give
+them a chance to provide you with an updated version of the Document.
+
+@item
+MODIFICATIONS
+
+You may copy and distribute a Modified Version of the Document under
+the conditions of sections 2 and 3 above, provided that you release
+the Modified Version under precisely this License, with the Modified
+Version filling the role of the Document, thus licensing distribution
+and modification of the Modified Version to whoever possesses a copy
+of it. In addition, you must do these things in the Modified Version:
-You may do as you please with this code as long as you do not remove this
-copyright notice or hold me liable for its use. Please send bug reports to
[email protected].
+@enumerate A
+@item
+Use in the Title Page (and on the covers, if any) a title distinct
+from that of the Document, and from those of previous versions
+(which should, if there were any, be listed in the History section
+of the Document). You may use the same title as a previous version
+if the original publisher of that version gives permission.
--------------------------------------------------------------------------------
+@item
+List on the Title Page, as authors, one or more persons or entities
+responsible for authorship of the modifications in the Modified
+Version, together with at least five of the principal authors of the
+Document (all of its principal authors, if it has fewer than five),
+unless they release you from this requirement.
-Copyright (c) 1993-1994 Stephen Adams
-Copyright (c) 1989-91, 1993-1994 Massachusetts Institute of Technology
+@item
+State on the Title page the name of the publisher of the
+Modified Version, as the publisher.
+
+@item
+Preserve all the copyright notices of the Document.
-This material was developed by the Scheme project at the
-Massachusetts Institute of Technology, Department of Electrical
-Engineering and Computer Science. Permission to copy and modify
-this software, to redistribute either the original software or a
-modified version, and to use this software for any purpose is
-granted, subject to the following restrictions and understandings.
+@item
+Add an appropriate copyright notice for your modifications
+adjacent to the other copyright notices.
+
+@item
+Include, immediately after the copyright notices, a license notice
+giving the public permission to use the Modified Version under the
+terms of this License, in the form shown in the Addendum below.
+
+@item
+Preserve in that license notice the full lists of Invariant Sections
+and required Cover Texts given in the Document's license notice.
+
+@item
+Include an unaltered copy of this License.
+
+@item
+Preserve the section Entitled ``History'', Preserve its Title, and add
+to it an item stating at least the title, year, new authors, and
+publisher of the Modified Version as given on the Title Page. If
+there is no section Entitled ``History'' in the Document, create one
+stating the title, year, authors, and publisher of the Document as
+given on its Title Page, then add an item describing the Modified
+Version as stated in the previous sentence.
-1. Any copy made of this software must include this copyright
-notice in full.
+@item
+Preserve the network location, if any, given in the Document for
+public access to a Transparent copy of the Document, and likewise
+the network locations given in the Document for previous versions
+it was based on. These may be placed in the ``History'' section.
+You may omit a network location for a work that was published at
+least four years before the Document itself, or if the original
+publisher of the version it refers to gives permission.
+
+@item
+For any section Entitled ``Acknowledgements'' or ``Dedications'', Preserve
+the Title of the section, and preserve in the section all the
+substance and tone of each of the contributor acknowledgements and/or
+dedications given therein.
-2. Users of this software agree to make their best efforts (a) to
-return to the MIT Scheme project any improvements or extensions
-that they make, so that these may be included in future releases;
-and (b) to inform MIT of noteworthy uses of this software.
+@item
+Preserve all the Invariant Sections of the Document,
+unaltered in their text and in their titles. Section numbers
+or the equivalent are not considered part of the section titles.
-3. All materials developed as a consequence of the use of this
-software shall duly acknowledge such use, in accordance with the
-usual standards of acknowledging credit in academic research.
+@item
+Delete any section Entitled ``Endorsements''. Such a section
+may not be included in the Modified Version.
+
+@item
+Do not retitle any existing section to be Entitled ``Endorsements'' or
+to conflict in title with any Invariant Section.
+
+@item
+Preserve any Warranty Disclaimers.
+@end enumerate
-4. MIT has made no warranty or representation that the operation
-of this software will be error-free, and MIT is under no
-obligation to provide any services, by way of maintenance, update,
-or otherwise.
+If the Modified Version includes new front-matter sections or
+appendices that qualify as Secondary Sections and contain no material
+copied from the Document, you may at your option designate some or all
+of these sections as invariant. To do this, add their titles to the
+list of Invariant Sections in the Modified Version's license notice.
+These titles must be distinct from any other section titles.
+
+You may add a section Entitled ``Endorsements'', provided it contains
+nothing but endorsements of your Modified Version by various
+parties---for example, statements of peer review or that the text has
+been approved by an organization as the authoritative definition of a
+standard.
+
+You may add a passage of up to five words as a Front-Cover Text, and a
+passage of up to 25 words as a Back-Cover Text, to the end of the list
+of Cover Texts in the Modified Version. Only one passage of
+Front-Cover Text and one of Back-Cover Text may be added by (or
+through arrangements made by) any one entity. If the Document already
+includes a cover text for the same cover, previously added by you or
+by arrangement made by the same entity you are acting on behalf of,
+you may not add another; but you may replace the old one, on explicit
+permission from the previous publisher that added the old one.
+
+The author(s) and publisher(s) of the Document do not by this License
+give permission to use their names for publicity for or to assert or
+imply endorsement of any Modified Version.
+
+@item
+COMBINING DOCUMENTS
-5. In conjunction with products arising from the use of this
-material, there shall be no use of the name of the Massachusetts
-Institute of Technology nor of any adaptation thereof in any
-advertising, promotional, or sales literature without prior
-written consent from MIT in each case.
+You may combine the Document with other documents released under this
+License, under the terms defined in section 4 above for modified
+versions, provided that you include in the combination all of the
+Invariant Sections of all of the original documents, unmodified, and
+list them all as Invariant Sections of your combined work in its
+license notice, and that you preserve all their Warranty Disclaimers.
+
+The combined work need only contain one copy of this License, and
+multiple identical Invariant Sections may be replaced with a single
+copy. If there are multiple Invariant Sections with the same name but
+different contents, make the title of each such section unique by
+adding at the end of it, in parentheses, the name of the original
+author or publisher of that section if known, or else a unique number.
+Make the same adjustment to the section titles in the list of
+Invariant Sections in the license notice of the combined work.
--------------------------------------------------------------------------------
+In the combination, you must combine any sections Entitled ``History''
+in the various original documents, forming one section Entitled
+``History''; likewise combine any sections Entitled ``Acknowledgements'',
+and any sections Entitled ``Dedications''. You must delete all
+sections Entitled ``Endorsements.''
-Copyright 1992 William Clinger
+@item
+COLLECTIONS OF DOCUMENTS
-Permission to copy this software, in whole or in part, to use this
-software for any lawful purpose, and to redistribute this software
-is granted subject to the restriction that all copies made of this
-software must include this copyright notice in full.
+You may make a collection consisting of the Document and other documents
+released under this License, and replace the individual copies of this
+License in the various documents with a single copy that is included in
+the collection, provided that you follow the rules of this License for
+verbatim copying of each of the documents in all other respects.
+
+You may extract a single document from such a collection, and distribute
+it individually under this License, provided you insert a copy of this
+License into the extracted document, and follow this License in all
+other respects regarding verbatim copying of that document.
+
+@item
+AGGREGATION WITH INDEPENDENT WORKS
-I also request that you send me a copy of any improvements that you
-make to this software so that they may be incorporated within it to
-the benefit of the Scheme community.
+A compilation of the Document or its derivatives with other separate
+and independent documents or works, in or on a volume of a storage or
+distribution medium, is called an ``aggregate'' if the copyright
+resulting from the compilation is not used to limit the legal rights
+of the compilation's users beyond what the individual works permit.
+When the Document is included in an aggregate, this License does not
+apply to the other works in the aggregate which are not themselves
+derivative works of the Document.
--------------------------------------------------------------------------------
+If the Cover Text requirement of section 3 is applicable to these
+copies of the Document, then if the Document is less than one half of
+the entire aggregate, the Document's Cover Texts may be placed on
+covers that bracket the Document within the aggregate, or the
+electronic equivalent of covers if the Document is in electronic form.
+Otherwise they must appear on printed covers that bracket the whole
+aggregate.
- SLIB LICENSE
+@item
+TRANSLATION
-Each file in SLIB (over a dozen lines in length) is either in the public
-domain, or comes with a statement of terms permitting users to copy,
-modify, and redistribute it.
+Translation is considered a kind of modification, so you may
+distribute translations of the Document under the terms of section 4.
+Replacing Invariant Sections with translations requires special
+permission from their copyright holders, but you may include
+translations of some or all Invariant Sections in addition to the
+original versions of these Invariant Sections. You may include a
+translation of this License, and all the license notices in the
+Document, and any Warranty Disclaimers, provided that you also include
+the original English version of this License and the original versions
+of those notices and disclaimers. In case of a disagreement between
+the translation and the original version of this License or a notice
+or disclaimer, the original version will prevail.
+
+If a section in the Document is Entitled ``Acknowledgements'',
+``Dedications'', or ``History'', the requirement (section 4) to Preserve
+its Title (section 1) will typically require changing the actual
+title.
-The comments at the beginning each file (containing over a dozen lines)
-must specify its terms. For instance, the comments at the beginning of
-"Template.scm" declare that it is in the public domain:
+@item
+TERMINATION
- ;;; "Template.scm" configuration template of *features* for Scheme
- ;;; Author: Aubrey Jaffer
- ;;;
- ;;; This code is in the public domain.
+You may not copy, modify, sublicense, or distribute the Document except
+as expressly provided for under this License. Any other attempt to
+copy, modify, sublicense or distribute the Document is void, and will
+automatically terminate your rights under this License. However,
+parties who have received copies, or rights, from you under this
+License will not have their licenses terminated so long as such
+parties remain in full compliance.
+
+@item
+FUTURE REVISIONS OF THIS LICENSE
+
+The Free Software Foundation may publish new, revised versions
+of the GNU Free Documentation License from time to time. Such new
+versions will be similar in spirit to the present version, but may
+differ in detail to address new problems or concerns. See
+@uref{http://www.gnu.org/copyleft/}.
-Each copyrighted file lists the names of the copyright holders and gives
-permissions to copy, modify, and redistribute the file. For instance,
-the beginning of "require.scm" states:
+Each version of the License is given a distinguishing version number.
+If the Document specifies that a particular numbered version of this
+License ``or any later version'' applies to it, you have the option of
+following the terms and conditions either of that specified version or
+of any later version that has been published (not as a draft) by the
+Free Software Foundation. If the Document does not specify a version
+number of this License, you may choose any version ever published (not
+as a draft) by the Free Software Foundation.
+@end enumerate
+
+@page
+@heading ADDENDUM: How to use this License for your documents
+
+To use this License in a document you have written, include a copy of
+the License in the document and put the following copyright and
+license notices just after the title page:
+
+@smallexample
+@group
+Copyright (C) @var{year} @var{your name}.
+Permission is granted to copy, distribute and/or modify this document
+under the terms of the GNU Free Documentation License, Version 1.2
+or any later version published by the Free Software Foundation;
+with no Invariant Sections, no Front-Cover Texts, and no Back-Cover
+Texts. A copy of the license is included in the section entitled ``GNU
+Free Documentation License''.
+@end group
+@end smallexample
+
+If you have Invariant Sections, Front-Cover Texts and Back-Cover Texts,
+replace the ``with@dots{}Texts.'' line with this:
- ;;;; Implementation of VICINITY and MODULES for Scheme
- ;Copyright (C) 1991, 1992, 1993, 1994, 1997 Aubrey Jaffer
- ;
- ;Permission to copy this software, to modify it, to redistribute it,
- ;to distribute modified versions, and to use it for any purpose is
- ;granted, subject to the following restrictions and understandings.
- ;
- ;1. Any copy made of this software must include this copyright notice
- ;in full.
- ;
- ;2. I have made no warranty or representation that the operation of
- ;this software will be error-free, and I am under no obligation to
- ;provide any services, by way of maintenance, update, or otherwise.
- ;
- ;3. In conjunction with products arising from the use of this
- ;material, there shall be no use of my name in any advertising,
- ;promotional, or sales literature without prior written consent in
- ;each case.
+@smallexample
+@group
+with the Invariant Sections being @var{list their titles}, with
+the Front-Cover Texts being @var{list}, and with the Back-Cover Texts
+being @var{list}.
+@end group
+@end smallexample
+
+If you have Invariant Sections without Cover Texts, or some other
+combination of the three, merge those two alternatives to suit the
+situation.
+
+If your document contains nontrivial examples of program code, we
+recommend releasing these examples in parallel under your choice of
+free software license, such as the GNU General Public License,
+to permit their use in free software.
+
+@c Local Variables:
+@c ispell-local-pdict: "ispell-dict"
+@c End:
+----------------------------------------------------------------
+Copyrights:
+-----------
+
+coerce.scm:; Copyright (C) 1995, 2001 Aubrey Jaffer
+collect.scm:; COPYRIGHT (c) Kenneth Dickey 1992
+comlist.scm:; Copyright (C) 2000 Colin Walters
+dbsyn.scm:;;; Copyright (C) 2002, 2003 Ivan Shmakov <[email protected]>
+dynamic.scm:; Copyright 1992 Andrew Wilcox.
+fdl.texi:Copyright @copyright{} 2000,2001,2002 Free Software Foundation, Inc.
+genwrite.scm:;; Copyright (c) 1991, Marc Feeley
+glob.scm:;;; Copyright (C) 1998 Radey Shouman.
+macwork.scm:;Copyright 1992 William Clinger
+printf.scm:;;; Copyright (C) 1991-1993, 1996, 1999-2001 Aubrey Jaffer and Radey Shouman.
+r4rsyn.scm:;;; Copyright (c) 1989-91 Massachusetts Institute of Technology
+scaexpp.scm:;;; Copyright (C) 1992 R. Kent Dybvig
+srfi-1.scm:;; Copyright 2003 Sven Hartrumpf
+srfi-1.scm:;; Copyright 2003-2004 Lars Buitinck
+srfi-1.scm:;;; Copyright (c) 1998, 1999 by Olin Shivers.
+tsort.scm:;;; Copyright (C) 1995 Mikael Djurfeldt
+wttest.scm:;;; Copyright (c) 1993-1994 Stephen Adams