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gpl.texi

Timestamp:

2008年04月04日 22時04分40秒 (8 months ago)

Author:

miyoshi

Message:

Sync up with Emacs22.2.

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trunk/lispref/gpl.texi (modified) (1 diff)

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trunk/lispref/gpl.texi

r4166	r4220
5	5	@comment node-name, next, previous, up
6	6	@appendix GNU General Public License
7		@center Version 2, June 1991
	7	@c The GNU General Public License.
	8	@center Version 3, 29 June 2007
	9
	10	@c This file is intended to be included within another document,
	11	@c hence no sectioning command or @node.
8	12
9	13	@display
10		Copyright @copyright{} 1989, 1991 Free Software Foundation, Inc.
11		51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
12
13		Everyone is permitted to copy and distribute verbatim copies
14		of this license document, but changing it is not allowed.
	14	Copyright @copyright{} 2007 Free Software Foundation, Inc. @url{http://fsf.org/}
	15
	16	Everyone is permitted to copy and distribute verbatim copies of this
	17	license document, but changing it is not allowed.
15	18	@end display
16	19
17		@unnumberedsec Preamble
18
19		The licenses for most software are designed to take away your
20		freedom to share and change it. By contrast, the GNU General Public
21		License is intended to guarantee your freedom to share and change free
22		software---to make sure the software is free for all its users. This
23		General Public License applies to most of the Free Software
24		Foundation's software and to any other program whose authors commit to
25		using it. (Some other Free Software Foundation software is covered by
26		the GNU Lesser General Public License instead.) You can apply it to
27		your programs, too.
28
29		When we speak of free software, we are referring to freedom, not
	20	@heading Preamble
	21
	22	The GNU General Public License is a free, copyleft license for
	23	software and other kinds of works.
	24
	25	The licenses for most software and other practical works are designed
	26	to take away your freedom to share and change the works. By contrast,
	27	the GNU General Public License is intended to guarantee your freedom
	28	to share and change all versions of a program---to make sure it remains
	29	free software for all its users. We, the Free Software Foundation,
	30	use the GNU General Public License for most of our software; it
	31	applies also to any other work released this way by its authors. You
	32	can apply it to your programs, too.
	33
	34	When we speak of free software, we are referring to freedom, not
30	35	price. Our General Public Licenses are designed to make sure that you
31	36	have the freedom to distribute copies of free software (and charge for
32		this service if you wish), that you receive source code or can get it
33		if you want it, that you can change the software or use pieces of it
34		in new free programs; and that you know you can do these things.
35
36		To protect your rights, we need to make restrictions that forbid
37		anyone to deny you these rights or to ask you to surrender the rights.
38		These restrictions translate to certain responsibilities for you if you
39		distribute copies of the software, or if you modify it.
40
41		For example, if you distribute copies of such a program, whether
42		gratis or for a fee, you must give the recipients all the rights that
43		you have. You must make sure that they, too, receive or can get the
44		source code. And you must show them these terms so they know their
45		rights.
46
47		We protect your rights with two steps: (1) copyright the software, and
48		(2) offer you this license which gives you legal permission to copy,
49		distribute and/or modify the software.
50
51		Also, for each author's protection and ours, we want to make certain
52		that everyone understands that there is no warranty for this free
53		software. If the software is modified by someone else and passed on, we
54		want its recipients to know that what they have is not the original, so
55		that any problems introduced by others will not reflect on the original
56		authors' reputations.
57
58		Finally, any free program is threatened constantly by software
59		patents. We wish to avoid the danger that redistributors of a free
60		program will individually obtain patent licenses, in effect making the
61		program proprietary. To prevent this, we have made it clear that any
62		patent must be licensed for everyone's free use or not licensed at all.
63
64		The precise terms and conditions for copying, distribution and
	37	them if you wish), that you receive source code or can get it if you
	38	want it, that you can change the software or use pieces of it in new
	39	free programs, and that you know you can do these things.
	40
	41	To protect your rights, we need to prevent others from denying you
	42	these rights or asking you to surrender the rights. Therefore, you
	43	have certain responsibilities if you distribute copies of the
	44	software, or if you modify it: responsibilities to respect the freedom
	45	of others.
	46
	47	For example, if you distribute copies of such a program, whether
	48	gratis or for a fee, you must pass on to the recipients the same
	49	freedoms that you received. You must make sure that they, too,
	50	receive or can get the source code. And you must show them these
	51	terms so they know their rights.
	52
	53	Developers that use the GNU GPL protect your rights with two steps:
	54	(1) assert copyright on the software, and (2) offer you this License
	55	giving you legal permission to copy, distribute and/or modify it.
	56
	57	For the developers' and authors' protection, the GPL clearly explains
	58	that there is no warranty for this free software. For both users' and
	59	authors' sake, the GPL requires that modified versions be marked as
	60	changed, so that their problems will not be attributed erroneously to
	61	authors of previous versions.
	62
	63	Some devices are designed to deny users access to install or run
	64	modified versions of the software inside them, although the
	65	manufacturer can do so. This is fundamentally incompatible with the
	66	aim of protecting users' freedom to change the software. The
	67	systematic pattern of such abuse occurs in the area of products for
	68	individuals to use, which is precisely where it is most unacceptable.
	69	Therefore, we have designed this version of the GPL to prohibit the
	70	practice for those products. If such problems arise substantially in
	71	other domains, we stand ready to extend this provision to those
	72	domains in future versions of the GPL, as needed to protect the
	73	freedom of users.
	74
	75	Finally, every program is threatened constantly by software patents.
	76	States should not allow patents to restrict development and use of
	77	software on general-purpose computers, but in those that do, we wish
	78	to avoid the special danger that patents applied to a free program
	79	could make it effectively proprietary. To prevent this, the GPL
	80	assures that patents cannot be used to render the program non-free.
	81
	82	The precise terms and conditions for copying, distribution and
65	83	modification follow.
66	84
67		@iftex
68		@unnumberedsec Terms and Conditions for Copying, Distribution and Modification
69		@end iftex
70		@ifnottex
71		@center TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
72		@end ifnottex
	85	@heading TERMS AND CONDITIONS
73	86
74	87	@enumerate 0
75		@item
76		This License applies to any program or other work which contains
77		a notice placed by the copyright holder saying it may be distributed
78		under the terms of this General Public License. The ``Program'', below,
79		refers to any such program or work, and a ``work based on the Program''
80		means either the Program or any derivative work under copyright law:
81		that is to say, a work containing the Program or a portion of it,
82		either verbatim or with modifications and/or translated into another
83		language. (Hereinafter, translation is included without limitation in
84		the term ``modification''.) Each licensee is addressed as ``you''.
85
86		Activities other than copying, distribution and modification are not
87		covered by this License; they are outside its scope. The act of
88		running the Program is not restricted, and the output from the Program
89		is covered only if its contents constitute a work based on the
90		Program (independent of having been made by running the Program).
91		Whether that is true depends on what the Program does.
92
93		@item
94		You may copy and distribute verbatim copies of the Program's
95		source code as you receive it, in any medium, provided that you
96		conspicuously and appropriately publish on each copy an appropriate
97		copyright notice and disclaimer of warranty; keep intact all the
98		notices that refer to this License and to the absence of any warranty;
99		and give any other recipients of the Program a copy of this License
100		along with the Program.
101
102		You may charge a fee for the physical act of transferring a copy, and
103		you may at your option offer warranty protection in exchange for a fee.
104
105		@item
106		You may modify your copy or copies of the Program or any portion
107		of it, thus forming a work based on the Program, and copy and
108		distribute such modifications or work under the terms of Section 1
109		above, provided that you also meet all of these conditions:
	88	@item Definitions.
	89
	90	``This License'' refers to version 3 of the GNU General Public License.
	91
	92	``Copyright'' also means copyright-like laws that apply to other kinds
	93	of works, such as semiconductor masks.
	94
	95	``The Program'' refers to any copyrightable work licensed under this
	96	License. Each licensee is addressed as ``you''. ``Licensees'' and
	97	``recipients'' may be individuals or organizations.
	98
	99	To ``modify'' a work means to copy from or adapt all or part of the work
	100	in a fashion requiring copyright permission, other than the making of
	101	an exact copy. The resulting work is called a ``modified version'' of
	102	the earlier work or a work ``based on'' the earlier work.
	103
	104	A ``covered work'' means either the unmodified Program or a work based
	105	on the Program.
	106
	107	To ``propagate'' a work means to do anything with it that, without
	108	permission, would make you directly or secondarily liable for
	109	infringement under applicable copyright law, except executing it on a
	110	computer or modifying a private copy. Propagation includes copying,
	111	distribution (with or without modification), making available to the
	112	public, and in some countries other activities as well.
	113
	114	To ``convey'' a work means any kind of propagation that enables other
	115	parties to make or receive copies. Mere interaction with a user
	116	through a computer network, with no transfer of a copy, is not
	117	conveying.
	118
	119	An interactive user interface displays ``Appropriate Legal Notices'' to
	120	the extent that it includes a convenient and prominently visible
	121	feature that (1) displays an appropriate copyright notice, and (2)
	122	tells the user that there is no warranty for the work (except to the
	123	extent that warranties are provided), that licensees may convey the
	124	work under this License, and how to view a copy of this License. If
	125	the interface presents a list of user commands or options, such as a
	126	menu, a prominent item in the list meets this criterion.
	127
	128	@item Source Code.
	129
	130	The ``source code'' for a work means the preferred form of the work for
	131	making modifications to it. ``Object code'' means any non-source form
	132	of a work.
	133
	134	A ``Standard Interface'' means an interface that either is an official
	135	standard defined by a recognized standards body, or, in the case of
	136	interfaces specified for a particular programming language, one that
	137	is widely used among developers working in that language.
	138
	139	The ``System Libraries'' of an executable work include anything, other
	140	than the work as a whole, that (a) is included in the normal form of
	141	packaging a Major Component, but which is not part of that Major
	142	Component, and (b) serves only to enable use of the work with that
	143	Major Component, or to implement a Standard Interface for which an
	144	implementation is available to the public in source code form. A
	145	``Major Component'', in this context, means a major essential component
	146	(kernel, window system, and so on) of the specific operating system
	147	(if any) on which the executable work runs, or a compiler used to
	148	produce the work, or an object code interpreter used to run it.
	149
	150	The ``Corresponding Source'' for a work in object code form means all
	151	the source code needed to generate, install, and (for an executable
	152	work) run the object code and to modify the work, including scripts to
	153	control those activities. However, it does not include the work's
	154	System Libraries, or general-purpose tools or generally available free
	155	programs which are used unmodified in performing those activities but
	156	which are not part of the work. For example, Corresponding Source
	157	includes interface definition files associated with source files for
	158	the work, and the source code for shared libraries and dynamically
	159	linked subprograms that the work is specifically designed to require,
	160	such as by intimate data communication or control flow between those
	161	subprograms and other parts of the work.
	162
	163	The Corresponding Source need not include anything that users can
	164	regenerate automatically from other parts of the Corresponding Source.
	165
	166	The Corresponding Source for a work in source code form is that same
	167	work.
	168
	169	@item Basic Permissions.
	170
	171	All rights granted under this License are granted for the term of
	172	copyright on the Program, and are irrevocable provided the stated
	173	conditions are met. This License explicitly affirms your unlimited
	174	permission to run the unmodified Program. The output from running a
	175	covered work is covered by this License only if the output, given its
	176	content, constitutes a covered work. This License acknowledges your
	177	rights of fair use or other equivalent, as provided by copyright law.
	178
	179	You may make, run and propagate covered works that you do not convey,
	180	without conditions so long as your license otherwise remains in force.
	181	You may convey covered works to others for the sole purpose of having
	182	them make modifications exclusively for you, or provide you with
	183	facilities for running those works, provided that you comply with the
	184	terms of this License in conveying all material for which you do not
	185	control copyright. Those thus making or running the covered works for
	186	you must do so exclusively on your behalf, under your direction and
	187	control, on terms that prohibit them from making any copies of your
	188	copyrighted material outside their relationship with you.
	189
	190	Conveying under any other circumstances is permitted solely under the
	191	conditions stated below. Sublicensing is not allowed; section 10
	192	makes it unnecessary.
	193
	194	@item Protecting Users' Legal Rights From Anti-Circumvention Law.
	195
	196	No covered work shall be deemed part of an effective technological
	197	measure under any applicable law fulfilling obligations under article
	198	11 of the WIPO copyright treaty adopted on 20 December 1996, or
	199	similar laws prohibiting or restricting circumvention of such
	200	measures.
	201
	202	When you convey a covered work, you waive any legal power to forbid
	203	circumvention of technological measures to the extent such
	204	circumvention is effected by exercising rights under this License with
	205	respect to the covered work, and you disclaim any intention to limit
	206	operation or modification of the work as a means of enforcing, against
	207	the work's users, your or third parties' legal rights to forbid
	208	circumvention of technological measures.
	209
	210	@item Conveying Verbatim Copies.
	211
	212	You may convey verbatim copies of the Program's source code as you
	213	receive it, in any medium, provided that you conspicuously and
	214	appropriately publish on each copy an appropriate copyright notice;
	215	keep intact all notices stating that this License and any
	216	non-permissive terms added in accord with section 7 apply to the code;
	217	keep intact all notices of the absence of any warranty; and give all
	218	recipients a copy of this License along with the Program.
	219
	220	You may charge any price or no price for each copy that you convey,
	221	and you may offer support or warranty protection for a fee.
	222
	223	@item Conveying Modified Source Versions.
	224
	225	You may convey a work based on the Program, or the modifications to
	226	produce it from the Program, in the form of source code under the
	227	terms of section 4, provided that you also meet all of these
	228	conditions:
110	229
111	230	@enumerate a
112		@item
113		You must cause the modified files to carry prominent notices
114		stating that you changed the files and the date of any change.
115
116		@item
117		You must cause any work that you distribute or publish, that in
118		whole or in part contains or is derived from the Program or any
119		part thereof, to be licensed as a whole at no charge to all third
120		parties under the terms of this License.
121
122		@item
123		If the modified program normally reads commands interactively
124		when run, you must cause it, when started running for such
125		interactive use in the most ordinary way, to print or display an
126		announcement including an appropriate copyright notice and a
127		notice that there is no warranty (or else, saying that you provide
128		a warranty) and that users may redistribute the program under
129		these conditions, and telling the user how to view a copy of this
130		License. (Exception: if the Program itself is interactive but
131		does not normally print such an announcement, your work based on
132		the Program is not required to print an announcement.)
	231	@item
	232	The work must carry prominent notices stating that you modified it,
	233	and giving a relevant date.
	234
	235	@item
	236	The work must carry prominent notices stating that it is released
	237	under this License and any conditions added under section 7. This
	238	requirement modifies the requirement in section 4 to ``keep intact all
	239	notices''.
	240
	241	@item
	242	You must license the entire work, as a whole, under this License to
	243	anyone who comes into possession of a copy. This License will
	244	therefore apply, along with any applicable section 7 additional terms,
	245	to the whole of the work, and all its parts, regardless of how they
	246	are packaged. This License gives no permission to license the work in
	247	any other way, but it does not invalidate such permission if you have
	248	separately received it.
	249
	250	@item
	251	If the work has interactive user interfaces, each must display
	252	Appropriate Legal Notices; however, if the Program has interactive
	253	interfaces that do not display Appropriate Legal Notices, your work
	254	need not make them do so.
133	255	@end enumerate
134	256
135		These requirements apply to the modified work as a whole. If
136		identifiable sections of that work are not derived from the Program,
137		and can be reasonably considered independent and separate works in
138		themselves, then this License, and its terms, do not apply to those
139		sections when you distribute them as separate works. But when you
140		distribute the same sections as part of a whole which is a work based
141		on the Program, the distribution of the whole must be on the terms of
142		this License, whose permissions for other licensees extend to the
143		entire whole, and thus to each and every part regardless of who wrote it.
144
145		Thus, it is not the intent of this section to claim rights or contest
146		your rights to work written entirely by you; rather, the intent is to
147		exercise the right to control the distribution of derivative or
148		collective works based on the Program.
149
150		In addition, mere aggregation of another work not based on the Program
151		with the Program (or with a work based on the Program) on a volume of
152		a storage or distribution medium does not bring the other work under
153		the scope of this License.
154
155		@item
156		You may copy and distribute the Program (or a work based on it,
157		under Section 2) in object code or executable form under the terms of
158		Sections 1 and 2 above provided that you also do one of the following:
	257	A compilation of a covered work with other separate and independent
	258	works, which are not by their nature extensions of the covered work,
	259	and which are not combined with it such as to form a larger program,
	260	in or on a volume of a storage or distribution medium, is called an
	261	``aggregate'' if the compilation and its resulting copyright are not
	262	used to limit the access or legal rights of the compilation's users
	263	beyond what the individual works permit. Inclusion of a covered work
	264	in an aggregate does not cause this License to apply to the other
	265	parts of the aggregate.
	266
	267	@item Conveying Non-Source Forms.
	268
	269	You may convey a covered work in object code form under the terms of
	270	sections 4 and 5, provided that you also convey the machine-readable
	271	Corresponding Source under the terms of this License, in one of these
	272	ways:
159	273
160	274	@enumerate a
161	275	@item
162		Accompany it with the complete corresponding machine-readable
163		source code, which must be distributed under the terms of Sections
164		1 and 2 above on a medium customarily used for software interchange; or,
165
166		@item
167		Accompany it with a written offer, valid for at least three
168		years, to give any third party, for a charge no more than your
169		cost of physically performing source distribution, a complete
170		machine-readable copy of the corresponding source code, to be
171		distributed under the terms of Sections 1 and 2 above on a medium
172		customarily used for software interchange; or,
173
174		@item
175		Accompany it with the information you received as to the offer
176		to distribute corresponding source code. (This alternative is
177		allowed only for noncommercial distribution and only if you
178		received the program in object code or executable form with such
179		an offer, in accord with Subsection b above.)
	276	Convey the object code in, or embodied in, a physical product
	277	(including a physical distribution medium), accompanied by the
	278	Corresponding Source fixed on a durable physical medium customarily
	279	used for software interchange.
	280
	281	@item
	282	Convey the object code in, or embodied in, a physical product
	283	(including a physical distribution medium), accompanied by a written
	284	offer, valid for at least three years and valid for as long as you
	285	offer spare parts or customer support for that product model, to give
	286	anyone who possesses the object code either (1) a copy of the
	287	Corresponding Source for all the software in the product that is
	288	covered by this License, on a durable physical medium customarily used
	289	for software interchange, for a price no more than your reasonable
	290	cost of physically performing this conveying of source, or (2) access
	291	to copy the Corresponding Source from a network server at no charge.
	292
	293	@item
	294	Convey individual copies of the object code with a copy of the written
	295	offer to provide the Corresponding Source. This alternative is
	296	allowed only occasionally and noncommercially, and only if you
	297	received the object code with such an offer, in accord with subsection
	298	6b.
	299
	300	@item
	301	Convey the object code by offering access from a designated place
	302	(gratis or for a charge), and offer equivalent access to the
	303	Corresponding Source in the same way through the same place at no
	304	further charge. You need not require recipients to copy the
	305	Corresponding Source along with the object code. If the place to copy
	306	the object code is a network server, the Corresponding Source may be
	307	on a different server (operated by you or a third party) that supports
	308	equivalent copying facilities, provided you maintain clear directions
	309	next to the object code saying where to find the Corresponding Source.
	310	Regardless of what server hosts the Corresponding Source, you remain
	311	obligated to ensure that it is available for as long as needed to
	312	satisfy these requirements.
	313
	314	@item
	315	Convey the object code using peer-to-peer transmission, provided you
	316	inform other peers where the object code and Corresponding Source of
	317	the work are being offered to the general public at no charge under
	318	subsection 6d.
	319
180	320	@end enumerate
181	321
182		The source code for a work means the preferred form of the work for
183		making modifications to it. For an executable work, complete source
184		code means all the source code for all modules it contains, plus any
185		associated interface definition files, plus the scripts used to
186		control compilation and installation of the executable. However, as a
187		special exception, the source code distributed need not include
188		anything that is normally distributed (in either source or binary
189		form) with the major components (compiler, kernel, and so on) of the
190		operating system on which the executable runs, unless that component
191		itself accompanies the executable.
192
193		If distribution of executable or object code is made by offering
194		access to copy from a designated place, then offering equivalent
195		access to copy the source code from the same place counts as
196		distribution of the source code, even though third parties are not
197		compelled to copy the source along with the object code.
198
199		@item
200		You may not copy, modify, sublicense, or distribute the Program
201		except as expressly provided under this License. Any attempt
202		otherwise to copy, modify, sublicense or distribute the Program is
203		void, and will automatically terminate your rights under this License.
204		However, parties who have received copies, or rights, from you under
205		this License will not have their licenses terminated so long as such
206		parties remain in full compliance.
207
208		@item
209		You are not required to accept this License, since you have not
210		signed it. However, nothing else grants you permission to modify or
211		distribute the Program or its derivative works. These actions are
212		prohibited by law if you do not accept this License. Therefore, by
213		modifying or distributing the Program (or any work based on the
214		Program), you indicate your acceptance of this License to do so, and
215		all its terms and conditions for copying, distributing or modifying
216		the Program or works based on it.
217
218		@item
219		Each time you redistribute the Program (or any work based on the
220		Program), the recipient automatically receives a license from the
221		original licensor to copy, distribute or modify the Program subject to
222		these terms and conditions. You may not impose any further
223		restrictions on the recipients' exercise of the rights granted herein.
224		You are not responsible for enforcing compliance by third parties to
	322	A separable portion of the object code, whose source code is excluded
	323	from the Corresponding Source as a System Library, need not be
	324	included in conveying the object code work.
	325
	326	A ``User Product'' is either (1) a ``consumer product'', which means any
	327	tangible personal property which is normally used for personal,
	328	family, or household purposes, or (2) anything designed or sold for
	329	incorporation into a dwelling. In determining whether a product is a
	330	consumer product, doubtful cases shall be resolved in favor of
	331	coverage. For a particular product received by a particular user,
	332	``normally used'' refers to a typical or common use of that class of
	333	product, regardless of the status of the particular user or of the way
	334	in which the particular user actually uses, or expects or is expected
	335	to use, the product. A product is a consumer product regardless of
	336	whether the product has substantial commercial, industrial or
	337	non-consumer uses, unless such uses represent the only significant
	338	mode of use of the product.
	339
	340	``Installation Information'' for a User Product means any methods,
	341	procedures, authorization keys, or other information required to
	342	install and execute modified versions of a covered work in that User
	343	Product from a modified version of its Corresponding Source. The
	344	information must suffice to ensure that the continued functioning of
	345	the modified object code is in no case prevented or interfered with
	346	solely because modification has been made.
	347
	348	If you convey an object code work under this section in, or with, or
	349	specifically for use in, a User Product, and the conveying occurs as
	350	part of a transaction in which the right of possession and use of the
	351	User Product is transferred to the recipient in perpetuity or for a
	352	fixed term (regardless of how the transaction is characterized), the
	353	Corresponding Source conveyed under this section must be accompanied
	354	by the Installation Information. But this requirement does not apply
	355	if neither you nor any third party retains the ability to install
	356	modified object code on the User Product (for example, the work has
	357	been installed in ROM).
	358
	359	The requirement to provide Installation Information does not include a
	360	requirement to continue to provide support service, warranty, or
	361	updates for a work that has been modified or installed by the
	362	recipient, or for the User Product in which it has been modified or
	363	installed. Access to a network may be denied when the modification
	364	itself materially and adversely affects the operation of the network
	365	or violates the rules and protocols for communication across the
	366	network.
	367
	368	Corresponding Source conveyed, and Installation Information provided,
	369	in accord with this section must be in a format that is publicly
	370	documented (and with an implementation available to the public in
	371	source code form), and must require no special password or key for
	372	unpacking, reading or copying.
	373
	374	@item Additional Terms.
	375
	376	``Additional permissions'' are terms that supplement the terms of this
	377	License by making exceptions from one or more of its conditions.
	378	Additional permissions that are applicable to the entire Program shall
	379	be treated as though they were included in this License, to the extent
	380	that they are valid under applicable law. If additional permissions
	381	apply only to part of the Program, that part may be used separately
	382	under those permissions, but the entire Program remains governed by
	383	this License without regard to the additional permissions.
	384
	385	When you convey a copy of a covered work, you may at your option
	386	remove any additional permissions from that copy, or from any part of
	387	it. (Additional permissions may be written to require their own
	388	removal in certain cases when you modify the work.) You may place
	389	additional permissions on material, added by you to a covered work,
	390	for which you have or can give appropriate copyright permission.
	391
	392	Notwithstanding any other provision of this License, for material you
	393	add to a covered work, you may (if authorized by the copyright holders
	394	of that material) supplement the terms of this License with terms:
	395
	396	@enumerate a
	397	@item
	398	Disclaiming warranty or limiting liability differently from the terms
	399	of sections 15 and 16 of this License; or
	400
	401	@item
	402	Requiring preservation of specified reasonable legal notices or author
	403	attributions in that material or in the Appropriate Legal Notices
	404	displayed by works containing it; or
	405
	406	@item
	407	Prohibiting misrepresentation of the origin of that material, or
	408	requiring that modified versions of such material be marked in
	409	reasonable ways as different from the original version; or
	410
	411	@item
	412	Limiting the use for publicity purposes of names of licensors or
	413	authors of the material; or
	414
	415	@item
	416	Declining to grant rights under trademark law for use of some trade
	417	names, trademarks, or service marks; or
	418
	419	@item
	420	Requiring indemnification of licensors and authors of that material by
	421	anyone who conveys the material (or modified versions of it) with
	422	contractual assumptions of liability to the recipient, for any
	423	liability that these contractual assumptions directly impose on those
	424	licensors and authors.
	425	@end enumerate
	426
	427	All other non-permissive additional terms are considered ``further
	428	restrictions'' within the meaning of section 10. If the Program as you
	429	received it, or any part of it, contains a notice stating that it is
	430	governed by this License along with a term that is a further
	431	restriction, you may remove that term. If a license document contains
	432	a further restriction but permits relicensing or conveying under this
	433	License, you may add to a covered work material governed by the terms
	434	of that license document, provided that the further restriction does
	435	not survive such relicensing or conveying.
	436
	437	If you add terms to a covered work in accord with this section, you
	438	must place, in the relevant source files, a statement of the
	439	additional terms that apply to those files, or a notice indicating
	440	where to find the applicable terms.
	441
	442	Additional terms, permissive or non-permissive, may be stated in the
	443	form of a separately written license, or stated as exceptions; the
	444	above requirements apply either way.
	445
	446	@item Termination.
	447
	448	You may not propagate or modify a covered work except as expressly
	449	provided under this License. Any attempt otherwise to propagate or
	450	modify it is void, and will automatically terminate your rights under
	451	this License (including any patent licenses granted under the third
	452	paragraph of section 11).
	453
	454	However, if you cease all violation of this License, then your license
	455	from a particular copyright holder is reinstated (a) provisionally,
	456	unless and until the copyright holder explicitly and finally
	457	terminates your license, and (b) permanently, if the copyright holder
	458	fails to notify you of the violation by some reasonable means prior to
	459	60 days after the cessation.
	460
	461	Moreover, your license from a particular copyright holder is
	462	reinstated permanently if the copyright holder notifies you of the
	463	violation by some reasonable means, this is the first time you have
	464	received notice of violation of this License (for any work) from that
	465	copyright holder, and you cure the violation prior to 30 days after
	466	your receipt of the notice.
	467
	468	Termination of your rights under this section does not terminate the
	469	licenses of parties who have received copies or rights from you under
	470	this License. If your rights have been terminated and not permanently
	471	reinstated, you do not qualify to receive new licenses for the same
	472	material under section 10.
	473
	474	@item Acceptance Not Required for Having Copies.
	475
	476	You are not required to accept this License in order to receive or run
	477	a copy of the Program. Ancillary propagation of a covered work
	478	occurring solely as a consequence of using peer-to-peer transmission
	479	to receive a copy likewise does not require acceptance. However,
	480	nothing other than this License grants you permission to propagate or
	481	modify any covered work. These actions infringe copyright if you do
	482	not accept this License. Therefore, by modifying or propagating a
	483	covered work, you indicate your acceptance of this License to do so.
	484
	485	@item Automatic Licensing of Downstream Recipients.
	486
	487	Each time you convey a covered work, the recipient automatically
	488	receives a license from the original licensors, to run, modify and
	489	propagate that work, subject to this License. You are not responsible
	490	for enforcing compliance by third parties with this License.
	491
	492	An ``entity transaction'' is a transaction transferring control of an
	493	organization, or substantially all assets of one, or subdividing an
	494	organization, or merging organizations. If propagation of a covered
	495	work results from an entity transaction, each party to that
	496	transaction who receives a copy of the work also receives whatever
	497	licenses to the work the party's predecessor in interest had or could
	498	give under the previous paragraph, plus a right to possession of the
	499	Corresponding Source of the work from the predecessor in interest, if
	500	the predecessor has it or can get it with reasonable efforts.
	501
	502	You may not impose any further restrictions on the exercise of the
	503	rights granted or affirmed under this License. For example, you may
	504	not impose a license fee, royalty, or other charge for exercise of
	505	rights granted under this License, and you may not initiate litigation
	506	(including a cross-claim or counterclaim in a lawsuit) alleging that
	507	any patent claim is infringed by making, using, selling, offering for
	508	sale, or importing the Program or any portion of it.
	509
	510	@item Patents.
	511
	512	A ``contributor'' is a copyright holder who authorizes use under this
	513	License of the Program or a work on which the Program is based. The
	514	work thus licensed is called the contributor's ``contributor version''.
	515
	516	A contributor's ``essential patent claims'' are all patent claims owned
	517	or controlled by the contributor, whether already acquired or
	518	hereafter acquired, that would be infringed by some manner, permitted
	519	by this License, of making, using, or selling its contributor version,
	520	but do not include claims that would be infringed only as a
	521	consequence of further modification of the contributor version. For
	522	purposes of this definition, ``control'' includes the right to grant
	523	patent sublicenses in a manner consistent with the requirements of
225	524	this License.
226	525
227		@item
228		If, as a consequence of a court judgment or allegation of patent
229		infringement or for any other reason (not limited to patent issues),
230		conditions are imposed on you (whether by court order, agreement or
	526	Each contributor grants you a non-exclusive, worldwide, royalty-free
	527	patent license under the contributor's essential patent claims, to
	528	make, use, sell, offer for sale, import and otherwise run, modify and
	529	propagate the contents of its contributor version.
	530
	531	In the following three paragraphs, a ``patent license'' is any express
	532	agreement or commitment, however denominated, not to enforce a patent
	533	(such as an express permission to practice a patent or covenant not to
	534	sue for patent infringement). To ``grant'' such a patent license to a
	535	party means to make such an agreement or commitment not to enforce a
	536	patent against the party.
	537
	538	If you convey a covered work, knowingly relying on a patent license,
	539	and the Corresponding Source of the work is not available for anyone
	540	to copy, free of charge and under the terms of this License, through a
	541	publicly available network server or other readily accessible means,
	542	then you must either (1) cause the Corresponding Source to be so
	543	available, or (2) arrange to deprive yourself of the benefit of the
	544	patent license for this particular work, or (3) arrange, in a manner
	545	consistent with the requirements of this License, to extend the patent
	546	license to downstream recipients. ``Knowingly relying'' means you have
	547	actual knowledge that, but for the patent license, your conveying the
	548	covered work in a country, or your recipient's use of the covered work
	549	in a country, would infringe one or more identifiable patents in that
	550	country that you have reason to believe are valid.
	551
	552	If, pursuant to or in connection with a single transaction or
	553	arrangement, you convey, or propagate by procuring conveyance of, a
	554	covered work, and grant a patent license to some of the parties
	555	receiving the covered work authorizing them to use, propagate, modify
	556	or convey a specific copy of the covered work, then the patent license
	557	you grant is automatically extended to all recipients of the covered
	558	work and works based on it.
	559
	560	A patent license is ``discriminatory'' if it does not include within the
	561	scope of its coverage, prohibits the exercise of, or is conditioned on
	562	the non-exercise of one or more of the rights that are specifically
	563	granted under this License. You may not convey a covered work if you
	564	are a party to an arrangement with a third party that is in the
	565	business of distributing software, under which you make payment to the
	566	third party based on the extent of your activity of conveying the
	567	work, and under which the third party grants, to any of the parties
	568	who would receive the covered work from you, a discriminatory patent
	569	license (a) in connection with copies of the covered work conveyed by
	570	you (or copies made from those copies), or (b) primarily for and in
	571	connection with specific products or compilations that contain the
	572	covered work, unless you entered into that arrangement, or that patent
	573	license was granted, prior to 28 March 2007.
	574
	575	Nothing in this License shall be construed as excluding or limiting
	576	any implied license or other defenses to infringement that may
	577	otherwise be available to you under applicable patent law.
	578
	579	@item No Surrender of Others' Freedom.
	580
	581	If conditions are imposed on you (whether by court order, agreement or
231	582	otherwise) that contradict the conditions of this License, they do not
232		excuse you from the conditions of this License. If you cannot
233		distribute so as to satisfy simultaneously your obligations under this
234		License and any other pertinent obligations, then as a consequence you
235		may not distribute the Program at all. For example, if a patent
236		license would not permit royalty-free redistribution of the Program by
237		all those who receive copies directly or indirectly through you, then
238		the only way you could satisfy both it and this License would be to
239		refrain entirely from distribution of the Program.
240
241		If any portion of this section is held invalid or unenforceable under
242		any particular circumstance, the balance of the section is intended to
243		apply and the section as a whole is intended to apply in other
244		circumstances.
245
246		It is not the purpose of this section to induce you to infringe any
247		patents or other property right claims or to contest validity of any
248		such claims; this section has the sole purpose of protecting the
249		integrity of the free software distribution system, which is
250		implemented by public license practices. Many people have made
251		generous contributions to the wide range of software distributed
252		through that system in reliance on consistent application of that
253		system; it is up to the author/donor to decide if he or she is willing
254		to distribute software through any other system and a licensee cannot
255		impose that choice.
256
257		This section is intended to make thoroughly clear what is believed to
258		be a consequence of the rest of this License.
259
260		@item
261		If the distribution and/or use of the Program is restricted in
262		certain countries either by patents or by copyrighted interfaces, the
263		original copyright holder who places the Program under this License
264		may add an explicit geographical distribution limitation excluding
265		those countries, so that distribution is permitted only in or among
266		countries not thus excluded. In such case, this License incorporates
267		the limitation as if written in the body of this License.
268
269		@item
	583	excuse you from the conditions of this License. If you cannot convey
	584	a covered work so as to satisfy simultaneously your obligations under
	585	this License and any other pertinent obligations, then as a
	586	consequence you may not convey it at all. For example, if you agree
	587	to terms that obligate you to collect a royalty for further conveying
	588	from those to whom you convey the Program, the only way you could
	589	satisfy both those terms and this License would be to refrain entirely
	590	from conveying the Program.
	591
	592	@item Use with the GNU Affero General Public License.
	593
	594	Notwithstanding any other provision of this License, you have
	595	permission to link or combine any covered work with a work licensed
	596	under version 3 of the GNU Affero General Public License into a single
	597	combined work, and to convey the resulting work. The terms of this
	598	License will continue to apply to the part which is the covered work,
	599	but the special requirements of the GNU Affero General Public License,
	600	section 13, concerning interaction through a network will apply to the
	601	combination as such.
	602
	603	@item Revised Versions of this License.
	604
270	605	The Free Software Foundation may publish revised and/or new versions
271		of the G~~eneral Public License from time to time. Such new versions will~~
272		be similar in spirit to the present version, but may differ in detail to
273		address new problems or concerns.
	606	of the GNU General Public License from time to time. Such new
	607	versions will be similar in spirit to the present version, but may
	608	differ in detail to address new problems or concerns.
274	609
275	610	Each version is given a distinguishing version number. If the Program
276		specifies a version number of this License which applies to it and ``any
277		later version'', you have the option of following the terms and conditions
278		either of that version or of any later version published by the Free
279		Software Foundation. If the Program does not specify a version number of
280		this License, you may choose any version ever published by the Free Software
281		Foundation.
282
283		@item
284		If you wish to incorporate parts of the Program into other free
285		programs whose distribution conditions are different, write to the author
286		to ask for permission. For software which is copyrighted by the Free
287		Software Foundation, write to the Free Software Foundation; we sometimes
288		make exceptions for this. Our decision will be guided by the two goals
289		of preserving the free status of all derivatives of our free software and
290		of promoting the sharing and reuse of software generally.
291
292		@iftex
293		@heading NO WARRANTY
294		@end iftex
295		@ifnottex
296		@center NO WARRANTY
297		@end ifnottex
298
299		@item
300		BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
301		FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW@. EXCEPT WHEN
302		OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
303		PROVIDE THE PROGRAM ``AS IS'' WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
304		OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
305		MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE@. THE ENTIRE RISK AS
306		TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU@. SHOULD THE
307		PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
308		REPAIR OR CORRECTION.
309
310		@item
	611	specifies that a certain numbered version of the GNU General Public
	612	License ``or any later version'' applies to it, you have the option of
	613	following the terms and conditions either of that numbered version or
	614	of any later version published by the Free Software Foundation. If
	615	the Program does not specify a version number of the GNU General
	616	Public License, you may choose any version ever published by the Free
	617	Software Foundation.
	618
	619	If the Program specifies that a proxy can decide which future versions
	620	of the GNU General Public License can be used, that proxy's public
	621	statement of acceptance of a version permanently authorizes you to
	622	choose that version for the Program.
	623
	624	Later license versions may give you additional or different
	625	permissions. However, no additional obligations are imposed on any
	626	author or copyright holder as a result of your choosing to follow a
	627	later version.
	628
	629	@item Disclaimer of Warranty.
	630
	631	THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
	632	APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
	633	HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM ``AS IS'' WITHOUT
	634	WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT
	635	LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
	636	A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND
	637	PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE
	638	DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR
	639	CORRECTION.
	640
	641	@item Limitation of Liability.
	642
311	643	IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
312		WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
313		REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
314		INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
315		OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
316		TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
317		YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
318		PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
319		POSSIBILITY OF SUCH DAMAGES.
	644	WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR
	645	CONVEYS THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
	646	INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES
	647	ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT
	648	NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR
	649	LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM
	650	TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER
	651	PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
	652
	653	@item Interpretation of Sections 15 and 16.
	654
	655	If the disclaimer of warranty and limitation of liability provided
	656	above cannot be given local legal effect according to their terms,
	657	reviewing courts shall apply local law that most closely approximates
	658	an absolute waiver of all civil liability in connection with the
	659	Program, unless a warranty or assumption of liability accompanies a
	660	copy of the Program in return for a fee.
	661
320	662	@end enumerate
321	663
322		~~@iftex~~
323	664	@heading END OF TERMS AND CONDITIONS
324		@end iftex
325		@ifnottex
326		@center END OF TERMS AND CONDITIONS
327		@end ifnottex
328
329		@page
330		@unnumberedsec How to Apply These Terms to Your New Programs
331
332		If you develop a new program, and you want it to be of the greatest
	665
	666	@heading How to Apply These Terms to Your New Programs
	667
	668	If you develop a new program, and you want it to be of the greatest
333	669	possible use to the public, the best way to achieve this is to make it
334		free software which everyone can redistribute and change under these terms.
335
336		To do so, attach the following notices to the program. It is safest
	670	free software which everyone can redistribute and change under these
	671	terms.
	672
	673	To do so, attach the following notices to the program. It is safest
337	674	to attach them to the start of each source file to most effectively
338		~~convey~~ the exclusion of warranty; and each file should have at least
	675	state the exclusion of warranty; and each file should have at least
339	676	the ``copyright'' line and a pointer to where the full notice is found.
340	677
341	678	@smallexample
342		@var{one line to give the program's name and a brief idea of what it does.}
343		Copyright (C) @var{y~~yyy}~~ @var{name of author}
344
345		This program is free software~~; you can redistribute it and/or~~
346		modify it under the terms of the GNU General Public License
347		as published by the Free Software Foundation; either version 2
348		~~of the License, or (at~~ your option) any later version.
349
350		This program is distributed in the hope that it will be useful,
351		~~but~~ WITHOUT ANY WARRANTY; without even the implied warranty of
352		MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE~~@. See the~~
353		G~~NU G~~eneral Public License for more details.
	679	@var{one line to give the program's name and a brief idea of what it does.}
	680	Copyright (C) @var{year} @var{name of author}
	681
	682	This program is free software: you can redistribute it and/or modify
	683	it under the terms of the GNU General Public License as published by
	684	the Free Software Foundation, either version 3 of the License, or (at
	685	your option) any later version.
	686
	687	This program is distributed in the hope that it will be useful, but
	688	WITHOUT ANY WARRANTY; without even the implied warranty of
	689	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	690	General Public License for more details.
354	691
355	692	You should have received a copy of the GNU General Public License
356		along with this program; if not, write to the Free Software
357		Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
358		MA 02110-1301, USA.
	693	along with this program. If not, see @url{http://www.gnu.org/licenses/}.
359	694	@end smallexample
360	695
361	696	Also add information on how to contact you by electronic and paper mail.
362	697
363		If the program ~~is interactive, make it output a short notice like this~~
364		when it starts in an interactive mode:
	698	If the program does terminal interaction, make it output a short
	699	notice like this when it starts in an interactive mode:
365	700
366	701	@smallexample
367		Gnomovision version 69, Copyright (C) @var{yyyy} @var{name of author}
368		~~Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'~~.
369		This is free software, and you are welcome to redistribute it
370		under certain conditions; type ~~`show c'~~ for details.
	702	@var{program} Copyright (C) @var{year} @var{name of author}
	703	This program comes with ABSOLUTELY NO WARRANTY; for details type @samp{show w}.
	704	This is free software, and you are welcome to redistribute it
	705	under certain conditions; type @samp{show c} for details.
371	706	@end smallexample
372	707
373	708	The hypothetical commands @samp{show w} and @samp{show c} should show
374		the appropriate parts of the General Public License. Of course, the
375		commands you use may be called something other than @samp{show w} and
376		@samp{show c}; they could even be mouse-clicks or menu items---whatever
377		suits your program.
378
379		You should also get your employer (if you work as a programmer) or your
380		school, if any, to sign a ``copyright disclaimer'' for the program, if
381		necessary. Here is a sample; alter the names:
382
383		@smallexample
384		@group
385		Yoyodyne, Inc., hereby disclaims all copyright
386		interest in the program `Gnomovision'
387		(which makes passes at compilers) written
388		by James Hacker.
389
390		@var{signature of Ty Coon}, 1 April 1989
391		Ty Coon, President of Vice
392		@end group
393		@end smallexample
394
395		This General Public License does not permit incorporating your program into
396		proprietary programs. If your program is a subroutine library, you may
397		consider it more useful to permit linking proprietary applications with the
398		library. If this is what you want to do, use the GNU Lesser General
399		Public License instead of this License.
	709	the appropriate parts of the General Public License. Of course, your
	710	program's commands might be different; for a GUI interface, you would
	711	use an ``about box''.
	712
	713	You should also get your employer (if you work as a programmer) or school,
	714	if any, to sign a ``copyright disclaimer'' for the program, if necessary.
	715	For more information on this, and how to apply and follow the GNU GPL, see
	716	@url{http://www.gnu.org/licenses/}.
	717
	718	The GNU General Public License does not permit incorporating your
	719	program into proprietary programs. If your program is a subroutine
	720	library, you may consider it more useful to permit linking proprietary
	721	applications with the library. If this is what you want to do, use
	722	the GNU Lesser General Public License instead of this License. But
	723	first, please read @url{http://www.gnu.org/philosophy/why-not-lgpl.html}.
400	724
401	725	@ignore

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