A streamlined version (for embedded use) of Jeff Brown's ZBar library. Visit <http://zbar.sourceforge.net> for more details.

Dependents:   BarcodeReader_F103

Committer:
hudakz
Date:
Fri Jan 10 22:06:18 2020 +0000
Revision:
1:4f5c042a2d34
Streamlined barcode reader library.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
hudakz 1:4f5c042a2d34 1 GNU LESSER GENERAL PUBLIC LICENSE
hudakz 1:4f5c042a2d34 2 Version 2.1, February 1999
hudakz 1:4f5c042a2d34 3
hudakz 1:4f5c042a2d34 4 Copyright (C) 1991, 1999 Free Software Foundation, Inc.
hudakz 1:4f5c042a2d34 5 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
hudakz 1:4f5c042a2d34 6 Everyone is permitted to copy and distribute verbatim copies
hudakz 1:4f5c042a2d34 7 of this license document, but changing it is not allowed.
hudakz 1:4f5c042a2d34 8
hudakz 1:4f5c042a2d34 9 [This is the first released version of the Lesser GPL. It also counts
hudakz 1:4f5c042a2d34 10 as the successor of the GNU Library Public License, version 2, hence
hudakz 1:4f5c042a2d34 11 the version number 2.1.]
hudakz 1:4f5c042a2d34 12
hudakz 1:4f5c042a2d34 13 Preamble
hudakz 1:4f5c042a2d34 14
hudakz 1:4f5c042a2d34 15 The licenses for most software are designed to take away your
hudakz 1:4f5c042a2d34 16 freedom to share and change it. By contrast, the GNU General Public
hudakz 1:4f5c042a2d34 17 Licenses are intended to guarantee your freedom to share and change
hudakz 1:4f5c042a2d34 18 free software--to make sure the software is free for all its users.
hudakz 1:4f5c042a2d34 19
hudakz 1:4f5c042a2d34 20 This license, the Lesser General Public License, applies to some
hudakz 1:4f5c042a2d34 21 specially designated software packages--typically libraries--of the
hudakz 1:4f5c042a2d34 22 Free Software Foundation and other authors who decide to use it. You
hudakz 1:4f5c042a2d34 23 can use it too, but we suggest you first think carefully about whether
hudakz 1:4f5c042a2d34 24 this license or the ordinary General Public License is the better
hudakz 1:4f5c042a2d34 25 strategy to use in any particular case, based on the explanations below.
hudakz 1:4f5c042a2d34 26
hudakz 1:4f5c042a2d34 27 When we speak of free software, we are referring to freedom of use,
hudakz 1:4f5c042a2d34 28 not price. Our General Public Licenses are designed to make sure that
hudakz 1:4f5c042a2d34 29 you have the freedom to distribute copies of free software (and charge
hudakz 1:4f5c042a2d34 30 for this service if you wish); that you receive source code or can get
hudakz 1:4f5c042a2d34 31 it if you want it; that you can change the software and use pieces of
hudakz 1:4f5c042a2d34 32 it in new free programs; and that you are informed that you can do
hudakz 1:4f5c042a2d34 33 these things.
hudakz 1:4f5c042a2d34 34
hudakz 1:4f5c042a2d34 35 To protect your rights, we need to make restrictions that forbid
hudakz 1:4f5c042a2d34 36 distributors to deny you these rights or to ask you to surrender these
hudakz 1:4f5c042a2d34 37 rights. These restrictions translate to certain responsibilities for
hudakz 1:4f5c042a2d34 38 you if you distribute copies of the library or if you modify it.
hudakz 1:4f5c042a2d34 39
hudakz 1:4f5c042a2d34 40 For example, if you distribute copies of the library, whether gratis
hudakz 1:4f5c042a2d34 41 or for a fee, you must give the recipients all the rights that we gave
hudakz 1:4f5c042a2d34 42 you. You must make sure that they, too, receive or can get the source
hudakz 1:4f5c042a2d34 43 code. If you link other code with the library, you must provide
hudakz 1:4f5c042a2d34 44 complete object files to the recipients, so that they can relink them
hudakz 1:4f5c042a2d34 45 with the library after making changes to the library and recompiling
hudakz 1:4f5c042a2d34 46 it. And you must show them these terms so they know their rights.
hudakz 1:4f5c042a2d34 47
hudakz 1:4f5c042a2d34 48 We protect your rights with a two-step method: (1) we copyright the
hudakz 1:4f5c042a2d34 49 library, and (2) we offer you this license, which gives you legal
hudakz 1:4f5c042a2d34 50 permission to copy, distribute and/or modify the library.
hudakz 1:4f5c042a2d34 51
hudakz 1:4f5c042a2d34 52 To protect each distributor, we want to make it very clear that
hudakz 1:4f5c042a2d34 53 there is no warranty for the free library. Also, if the library is
hudakz 1:4f5c042a2d34 54 modified by someone else and passed on, the recipients should know
hudakz 1:4f5c042a2d34 55 that what they have is not the original version, so that the original
hudakz 1:4f5c042a2d34 56 author's reputation will not be affected by problems that might be
hudakz 1:4f5c042a2d34 57 introduced by others.
hudakz 1:4f5c042a2d34 58
hudakz 1:4f5c042a2d34 59 Finally, software patents pose a constant threat to the existence of
hudakz 1:4f5c042a2d34 60 any free program. We wish to make sure that a company cannot
hudakz 1:4f5c042a2d34 61 effectively restrict the users of a free program by obtaining a
hudakz 1:4f5c042a2d34 62 restrictive license from a patent holder. Therefore, we insist that
hudakz 1:4f5c042a2d34 63 any patent license obtained for a version of the library must be
hudakz 1:4f5c042a2d34 64 consistent with the full freedom of use specified in this license.
hudakz 1:4f5c042a2d34 65
hudakz 1:4f5c042a2d34 66 Most GNU software, including some libraries, is covered by the
hudakz 1:4f5c042a2d34 67 ordinary GNU General Public License. This license, the GNU Lesser
hudakz 1:4f5c042a2d34 68 General Public License, applies to certain designated libraries, and
hudakz 1:4f5c042a2d34 69 is quite different from the ordinary General Public License. We use
hudakz 1:4f5c042a2d34 70 this license for certain libraries in order to permit linking those
hudakz 1:4f5c042a2d34 71 libraries into non-free programs.
hudakz 1:4f5c042a2d34 72
hudakz 1:4f5c042a2d34 73 When a program is linked with a library, whether statically or using
hudakz 1:4f5c042a2d34 74 a shared library, the combination of the two is legally speaking a
hudakz 1:4f5c042a2d34 75 combined work, a derivative of the original library. The ordinary
hudakz 1:4f5c042a2d34 76 General Public License therefore permits such linking only if the
hudakz 1:4f5c042a2d34 77 entire combination fits its criteria of freedom. The Lesser General
hudakz 1:4f5c042a2d34 78 Public License permits more lax criteria for linking other code with
hudakz 1:4f5c042a2d34 79 the library.
hudakz 1:4f5c042a2d34 80
hudakz 1:4f5c042a2d34 81 We call this license the "Lesser" General Public License because it
hudakz 1:4f5c042a2d34 82 does Less to protect the user's freedom than the ordinary General
hudakz 1:4f5c042a2d34 83 Public License. It also provides other free software developers Less
hudakz 1:4f5c042a2d34 84 of an advantage over competing non-free programs. These disadvantages
hudakz 1:4f5c042a2d34 85 are the reason we use the ordinary General Public License for many
hudakz 1:4f5c042a2d34 86 libraries. However, the Lesser license provides advantages in certain
hudakz 1:4f5c042a2d34 87 special circumstances.
hudakz 1:4f5c042a2d34 88
hudakz 1:4f5c042a2d34 89 For example, on rare occasions, there may be a special need to
hudakz 1:4f5c042a2d34 90 encourage the widest possible use of a certain library, so that it becomes
hudakz 1:4f5c042a2d34 91 a de-facto standard. To achieve this, non-free programs must be
hudakz 1:4f5c042a2d34 92 allowed to use the library. A more frequent case is that a free
hudakz 1:4f5c042a2d34 93 library does the same job as widely used non-free libraries. In this
hudakz 1:4f5c042a2d34 94 case, there is little to gain by limiting the free library to free
hudakz 1:4f5c042a2d34 95 software only, so we use the Lesser General Public License.
hudakz 1:4f5c042a2d34 96
hudakz 1:4f5c042a2d34 97 In other cases, permission to use a particular library in non-free
hudakz 1:4f5c042a2d34 98 programs enables a greater number of people to use a large body of
hudakz 1:4f5c042a2d34 99 free software. For example, permission to use the GNU C Library in
hudakz 1:4f5c042a2d34 100 non-free programs enables many more people to use the whole GNU
hudakz 1:4f5c042a2d34 101 operating system, as well as its variant, the GNU/Linux operating
hudakz 1:4f5c042a2d34 102 system.
hudakz 1:4f5c042a2d34 103
hudakz 1:4f5c042a2d34 104 Although the Lesser General Public License is Less protective of the
hudakz 1:4f5c042a2d34 105 users' freedom, it does ensure that the user of a program that is
hudakz 1:4f5c042a2d34 106 linked with the Library has the freedom and the wherewithal to run
hudakz 1:4f5c042a2d34 107 that program using a modified version of the Library.
hudakz 1:4f5c042a2d34 108
hudakz 1:4f5c042a2d34 109 The precise terms and conditions for copying, distribution and
hudakz 1:4f5c042a2d34 110 modification follow. Pay close attention to the difference between a
hudakz 1:4f5c042a2d34 111 "work based on the library" and a "work that uses the library". The
hudakz 1:4f5c042a2d34 112 former contains code derived from the library, whereas the latter must
hudakz 1:4f5c042a2d34 113 be combined with the library in order to run.
hudakz 1:4f5c042a2d34 114
hudakz 1:4f5c042a2d34 115 GNU LESSER GENERAL PUBLIC LICENSE
hudakz 1:4f5c042a2d34 116 TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
hudakz 1:4f5c042a2d34 117
hudakz 1:4f5c042a2d34 118 0. This License Agreement applies to any software library or other
hudakz 1:4f5c042a2d34 119 program which contains a notice placed by the copyright holder or
hudakz 1:4f5c042a2d34 120 other authorized party saying it may be distributed under the terms of
hudakz 1:4f5c042a2d34 121 this Lesser General Public License (also called "this License").
hudakz 1:4f5c042a2d34 122 Each licensee is addressed as "you".
hudakz 1:4f5c042a2d34 123
hudakz 1:4f5c042a2d34 124 A "library" means a collection of software functions and/or data
hudakz 1:4f5c042a2d34 125 prepared so as to be conveniently linked with application programs
hudakz 1:4f5c042a2d34 126 (which use some of those functions and data) to form executables.
hudakz 1:4f5c042a2d34 127
hudakz 1:4f5c042a2d34 128 The "Library", below, refers to any such software library or work
hudakz 1:4f5c042a2d34 129 which has been distributed under these terms. A "work based on the
hudakz 1:4f5c042a2d34 130 Library" means either the Library or any derivative work under
hudakz 1:4f5c042a2d34 131 copyright law: that is to say, a work containing the Library or a
hudakz 1:4f5c042a2d34 132 portion of it, either verbatim or with modifications and/or translated
hudakz 1:4f5c042a2d34 133 straightforwardly into another language. (Hereinafter, translation is
hudakz 1:4f5c042a2d34 134 included without limitation in the term "modification".)
hudakz 1:4f5c042a2d34 135
hudakz 1:4f5c042a2d34 136 "Source code" for a work means the preferred form of the work for
hudakz 1:4f5c042a2d34 137 making modifications to it. For a library, complete source code means
hudakz 1:4f5c042a2d34 138 all the source code for all modules it contains, plus any associated
hudakz 1:4f5c042a2d34 139 interface definition files, plus the scripts used to control compilation
hudakz 1:4f5c042a2d34 140 and installation of the library.
hudakz 1:4f5c042a2d34 141
hudakz 1:4f5c042a2d34 142 Activities other than copying, distribution and modification are not
hudakz 1:4f5c042a2d34 143 covered by this License; they are outside its scope. The act of
hudakz 1:4f5c042a2d34 144 running a program using the Library is not restricted, and output from
hudakz 1:4f5c042a2d34 145 such a program is covered only if its contents constitute a work based
hudakz 1:4f5c042a2d34 146 on the Library (independent of the use of the Library in a tool for
hudakz 1:4f5c042a2d34 147 writing it). Whether that is true depends on what the Library does
hudakz 1:4f5c042a2d34 148 and what the program that uses the Library does.
hudakz 1:4f5c042a2d34 149
hudakz 1:4f5c042a2d34 150 1. You may copy and distribute verbatim copies of the Library's
hudakz 1:4f5c042a2d34 151 complete source code as you receive it, in any medium, provided that
hudakz 1:4f5c042a2d34 152 you conspicuously and appropriately publish on each copy an
hudakz 1:4f5c042a2d34 153 appropriate copyright notice and disclaimer of warranty; keep intact
hudakz 1:4f5c042a2d34 154 all the notices that refer to this License and to the absence of any
hudakz 1:4f5c042a2d34 155 warranty; and distribute a copy of this License along with the
hudakz 1:4f5c042a2d34 156 Library.
hudakz 1:4f5c042a2d34 157
hudakz 1:4f5c042a2d34 158 You may charge a fee for the physical act of transferring a copy,
hudakz 1:4f5c042a2d34 159 and you may at your option offer warranty protection in exchange for a
hudakz 1:4f5c042a2d34 160 fee.
hudakz 1:4f5c042a2d34 161
hudakz 1:4f5c042a2d34 162 2. You may modify your copy or copies of the Library or any portion
hudakz 1:4f5c042a2d34 163 of it, thus forming a work based on the Library, and copy and
hudakz 1:4f5c042a2d34 164 distribute such modifications or work under the terms of Section 1
hudakz 1:4f5c042a2d34 165 above, provided that you also meet all of these conditions:
hudakz 1:4f5c042a2d34 166
hudakz 1:4f5c042a2d34 167 a) The modified work must itself be a software library.
hudakz 1:4f5c042a2d34 168
hudakz 1:4f5c042a2d34 169 b) You must cause the files modified to carry prominent notices
hudakz 1:4f5c042a2d34 170 stating that you changed the files and the date of any change.
hudakz 1:4f5c042a2d34 171
hudakz 1:4f5c042a2d34 172 c) You must cause the whole of the work to be licensed at no
hudakz 1:4f5c042a2d34 173 charge to all third parties under the terms of this License.
hudakz 1:4f5c042a2d34 174
hudakz 1:4f5c042a2d34 175 d) If a facility in the modified Library refers to a function or a
hudakz 1:4f5c042a2d34 176 table of data to be supplied by an application program that uses
hudakz 1:4f5c042a2d34 177 the facility, other than as an argument passed when the facility
hudakz 1:4f5c042a2d34 178 is invoked, then you must make a good faith effort to ensure that,
hudakz 1:4f5c042a2d34 179 in the event an application does not supply such function or
hudakz 1:4f5c042a2d34 180 table, the facility still operates, and performs whatever part of
hudakz 1:4f5c042a2d34 181 its purpose remains meaningful.
hudakz 1:4f5c042a2d34 182
hudakz 1:4f5c042a2d34 183 (For example, a function in a library to compute square roots has
hudakz 1:4f5c042a2d34 184 a purpose that is entirely well-defined independent of the
hudakz 1:4f5c042a2d34 185 application. Therefore, Subsection 2d requires that any
hudakz 1:4f5c042a2d34 186 application-supplied function or table used by this function must
hudakz 1:4f5c042a2d34 187 be optional: if the application does not supply it, the square
hudakz 1:4f5c042a2d34 188 root function must still compute square roots.)
hudakz 1:4f5c042a2d34 189
hudakz 1:4f5c042a2d34 190 These requirements apply to the modified work as a whole. If
hudakz 1:4f5c042a2d34 191 identifiable sections of that work are not derived from the Library,
hudakz 1:4f5c042a2d34 192 and can be reasonably considered independent and separate works in
hudakz 1:4f5c042a2d34 193 themselves, then this License, and its terms, do not apply to those
hudakz 1:4f5c042a2d34 194 sections when you distribute them as separate works. But when you
hudakz 1:4f5c042a2d34 195 distribute the same sections as part of a whole which is a work based
hudakz 1:4f5c042a2d34 196 on the Library, the distribution of the whole must be on the terms of
hudakz 1:4f5c042a2d34 197 this License, whose permissions for other licensees extend to the
hudakz 1:4f5c042a2d34 198 entire whole, and thus to each and every part regardless of who wrote
hudakz 1:4f5c042a2d34 199 it.
hudakz 1:4f5c042a2d34 200
hudakz 1:4f5c042a2d34 201 Thus, it is not the intent of this section to claim rights or contest
hudakz 1:4f5c042a2d34 202 your rights to work written entirely by you; rather, the intent is to
hudakz 1:4f5c042a2d34 203 exercise the right to control the distribution of derivative or
hudakz 1:4f5c042a2d34 204 collective works based on the Library.
hudakz 1:4f5c042a2d34 205
hudakz 1:4f5c042a2d34 206 In addition, mere aggregation of another work not based on the Library
hudakz 1:4f5c042a2d34 207 with the Library (or with a work based on the Library) on a volume of
hudakz 1:4f5c042a2d34 208 a storage or distribution medium does not bring the other work under
hudakz 1:4f5c042a2d34 209 the scope of this License.
hudakz 1:4f5c042a2d34 210
hudakz 1:4f5c042a2d34 211 3. You may opt to apply the terms of the ordinary GNU General Public
hudakz 1:4f5c042a2d34 212 License instead of this License to a given copy of the Library. To do
hudakz 1:4f5c042a2d34 213 this, you must alter all the notices that refer to this License, so
hudakz 1:4f5c042a2d34 214 that they refer to the ordinary GNU General Public License, version 2,
hudakz 1:4f5c042a2d34 215 instead of to this License. (If a newer version than version 2 of the
hudakz 1:4f5c042a2d34 216 ordinary GNU General Public License has appeared, then you can specify
hudakz 1:4f5c042a2d34 217 that version instead if you wish.) Do not make any other change in
hudakz 1:4f5c042a2d34 218 these notices.
hudakz 1:4f5c042a2d34 219
hudakz 1:4f5c042a2d34 220 Once this change is made in a given copy, it is irreversible for
hudakz 1:4f5c042a2d34 221 that copy, so the ordinary GNU General Public License applies to all
hudakz 1:4f5c042a2d34 222 subsequent copies and derivative works made from that copy.
hudakz 1:4f5c042a2d34 223
hudakz 1:4f5c042a2d34 224 This option is useful when you wish to copy part of the code of
hudakz 1:4f5c042a2d34 225 the Library into a program that is not a library.
hudakz 1:4f5c042a2d34 226
hudakz 1:4f5c042a2d34 227 4. You may copy and distribute the Library (or a portion or
hudakz 1:4f5c042a2d34 228 derivative of it, under Section 2) in object code or executable form
hudakz 1:4f5c042a2d34 229 under the terms of Sections 1 and 2 above provided that you accompany
hudakz 1:4f5c042a2d34 230 it with the complete corresponding machine-readable source code, which
hudakz 1:4f5c042a2d34 231 must be distributed under the terms of Sections 1 and 2 above on a
hudakz 1:4f5c042a2d34 232 medium customarily used for software interchange.
hudakz 1:4f5c042a2d34 233
hudakz 1:4f5c042a2d34 234 If distribution of object code is made by offering access to copy
hudakz 1:4f5c042a2d34 235 from a designated place, then offering equivalent access to copy the
hudakz 1:4f5c042a2d34 236 source code from the same place satisfies the requirement to
hudakz 1:4f5c042a2d34 237 distribute the source code, even though third parties are not
hudakz 1:4f5c042a2d34 238 compelled to copy the source along with the object code.
hudakz 1:4f5c042a2d34 239
hudakz 1:4f5c042a2d34 240 5. A program that contains no derivative of any portion of the
hudakz 1:4f5c042a2d34 241 Library, but is designed to work with the Library by being compiled or
hudakz 1:4f5c042a2d34 242 linked with it, is called a "work that uses the Library". Such a
hudakz 1:4f5c042a2d34 243 work, in isolation, is not a derivative work of the Library, and
hudakz 1:4f5c042a2d34 244 therefore falls outside the scope of this License.
hudakz 1:4f5c042a2d34 245
hudakz 1:4f5c042a2d34 246 However, linking a "work that uses the Library" with the Library
hudakz 1:4f5c042a2d34 247 creates an executable that is a derivative of the Library (because it
hudakz 1:4f5c042a2d34 248 contains portions of the Library), rather than a "work that uses the
hudakz 1:4f5c042a2d34 249 library". The executable is therefore covered by this License.
hudakz 1:4f5c042a2d34 250 Section 6 states terms for distribution of such executables.
hudakz 1:4f5c042a2d34 251
hudakz 1:4f5c042a2d34 252 When a "work that uses the Library" uses material from a header file
hudakz 1:4f5c042a2d34 253 that is part of the Library, the object code for the work may be a
hudakz 1:4f5c042a2d34 254 derivative work of the Library even though the source code is not.
hudakz 1:4f5c042a2d34 255 Whether this is true is especially significant if the work can be
hudakz 1:4f5c042a2d34 256 linked without the Library, or if the work is itself a library. The
hudakz 1:4f5c042a2d34 257 threshold for this to be true is not precisely defined by law.
hudakz 1:4f5c042a2d34 258
hudakz 1:4f5c042a2d34 259 If such an object file uses only numerical parameters, data
hudakz 1:4f5c042a2d34 260 structure layouts and accessors, and small macros and small inline
hudakz 1:4f5c042a2d34 261 functions (ten lines or less in length), then the use of the object
hudakz 1:4f5c042a2d34 262 file is unrestricted, regardless of whether it is legally a derivative
hudakz 1:4f5c042a2d34 263 work. (Executables containing this object code plus portions of the
hudakz 1:4f5c042a2d34 264 Library will still fall under Section 6.)
hudakz 1:4f5c042a2d34 265
hudakz 1:4f5c042a2d34 266 Otherwise, if the work is a derivative of the Library, you may
hudakz 1:4f5c042a2d34 267 distribute the object code for the work under the terms of Section 6.
hudakz 1:4f5c042a2d34 268 Any executables containing that work also fall under Section 6,
hudakz 1:4f5c042a2d34 269 whether or not they are linked directly with the Library itself.
hudakz 1:4f5c042a2d34 270
hudakz 1:4f5c042a2d34 271 6. As an exception to the Sections above, you may also combine or
hudakz 1:4f5c042a2d34 272 link a "work that uses the Library" with the Library to produce a
hudakz 1:4f5c042a2d34 273 work containing portions of the Library, and distribute that work
hudakz 1:4f5c042a2d34 274 under terms of your choice, provided that the terms permit
hudakz 1:4f5c042a2d34 275 modification of the work for the customer's own use and reverse
hudakz 1:4f5c042a2d34 276 engineering for debugging such modifications.
hudakz 1:4f5c042a2d34 277
hudakz 1:4f5c042a2d34 278 You must give prominent notice with each copy of the work that the
hudakz 1:4f5c042a2d34 279 Library is used in it and that the Library and its use are covered by
hudakz 1:4f5c042a2d34 280 this License. You must supply a copy of this License. If the work
hudakz 1:4f5c042a2d34 281 during execution displays copyright notices, you must include the
hudakz 1:4f5c042a2d34 282 copyright notice for the Library among them, as well as a reference
hudakz 1:4f5c042a2d34 283 directing the user to the copy of this License. Also, you must do one
hudakz 1:4f5c042a2d34 284 of these things:
hudakz 1:4f5c042a2d34 285
hudakz 1:4f5c042a2d34 286 a) Accompany the work with the complete corresponding
hudakz 1:4f5c042a2d34 287 machine-readable source code for the Library including whatever
hudakz 1:4f5c042a2d34 288 changes were used in the work (which must be distributed under
hudakz 1:4f5c042a2d34 289 Sections 1 and 2 above); and, if the work is an executable linked
hudakz 1:4f5c042a2d34 290 with the Library, with the complete machine-readable "work that
hudakz 1:4f5c042a2d34 291 uses the Library", as object code and/or source code, so that the
hudakz 1:4f5c042a2d34 292 user can modify the Library and then relink to produce a modified
hudakz 1:4f5c042a2d34 293 executable containing the modified Library. (It is understood
hudakz 1:4f5c042a2d34 294 that the user who changes the contents of definitions files in the
hudakz 1:4f5c042a2d34 295 Library will not necessarily be able to recompile the application
hudakz 1:4f5c042a2d34 296 to use the modified definitions.)
hudakz 1:4f5c042a2d34 297
hudakz 1:4f5c042a2d34 298 b) Use a suitable shared library mechanism for linking with the
hudakz 1:4f5c042a2d34 299 Library. A suitable mechanism is one that (1) uses at run time a
hudakz 1:4f5c042a2d34 300 copy of the library already present on the user's computer system,
hudakz 1:4f5c042a2d34 301 rather than copying library functions into the executable, and (2)
hudakz 1:4f5c042a2d34 302 will operate properly with a modified version of the library, if
hudakz 1:4f5c042a2d34 303 the user installs one, as long as the modified version is
hudakz 1:4f5c042a2d34 304 interface-compatible with the version that the work was made with.
hudakz 1:4f5c042a2d34 305
hudakz 1:4f5c042a2d34 306 c) Accompany the work with a written offer, valid for at
hudakz 1:4f5c042a2d34 307 least three years, to give the same user the materials
hudakz 1:4f5c042a2d34 308 specified in Subsection 6a, above, for a charge no more
hudakz 1:4f5c042a2d34 309 than the cost of performing this distribution.
hudakz 1:4f5c042a2d34 310
hudakz 1:4f5c042a2d34 311 d) If distribution of the work is made by offering access to copy
hudakz 1:4f5c042a2d34 312 from a designated place, offer equivalent access to copy the above
hudakz 1:4f5c042a2d34 313 specified materials from the same place.
hudakz 1:4f5c042a2d34 314
hudakz 1:4f5c042a2d34 315 e) Verify that the user has already received a copy of these
hudakz 1:4f5c042a2d34 316 materials or that you have already sent this user a copy.
hudakz 1:4f5c042a2d34 317
hudakz 1:4f5c042a2d34 318 For an executable, the required form of the "work that uses the
hudakz 1:4f5c042a2d34 319 Library" must include any data and utility programs needed for
hudakz 1:4f5c042a2d34 320 reproducing the executable from it. However, as a special exception,
hudakz 1:4f5c042a2d34 321 the materials to be distributed need not include anything that is
hudakz 1:4f5c042a2d34 322 normally distributed (in either source or binary form) with the major
hudakz 1:4f5c042a2d34 323 components (compiler, kernel, and so on) of the operating system on
hudakz 1:4f5c042a2d34 324 which the executable runs, unless that component itself accompanies
hudakz 1:4f5c042a2d34 325 the executable.
hudakz 1:4f5c042a2d34 326
hudakz 1:4f5c042a2d34 327 It may happen that this requirement contradicts the license
hudakz 1:4f5c042a2d34 328 restrictions of other proprietary libraries that do not normally
hudakz 1:4f5c042a2d34 329 accompany the operating system. Such a contradiction means you cannot
hudakz 1:4f5c042a2d34 330 use both them and the Library together in an executable that you
hudakz 1:4f5c042a2d34 331 distribute.
hudakz 1:4f5c042a2d34 332
hudakz 1:4f5c042a2d34 333 7. You may place library facilities that are a work based on the
hudakz 1:4f5c042a2d34 334 Library side-by-side in a single library together with other library
hudakz 1:4f5c042a2d34 335 facilities not covered by this License, and distribute such a combined
hudakz 1:4f5c042a2d34 336 library, provided that the separate distribution of the work based on
hudakz 1:4f5c042a2d34 337 the Library and of the other library facilities is otherwise
hudakz 1:4f5c042a2d34 338 permitted, and provided that you do these two things:
hudakz 1:4f5c042a2d34 339
hudakz 1:4f5c042a2d34 340 a) Accompany the combined library with a copy of the same work
hudakz 1:4f5c042a2d34 341 based on the Library, uncombined with any other library
hudakz 1:4f5c042a2d34 342 facilities. This must be distributed under the terms of the
hudakz 1:4f5c042a2d34 343 Sections above.
hudakz 1:4f5c042a2d34 344
hudakz 1:4f5c042a2d34 345 b) Give prominent notice with the combined library of the fact
hudakz 1:4f5c042a2d34 346 that part of it is a work based on the Library, and explaining
hudakz 1:4f5c042a2d34 347 where to find the accompanying uncombined form of the same work.
hudakz 1:4f5c042a2d34 348
hudakz 1:4f5c042a2d34 349 8. You may not copy, modify, sublicense, link with, or distribute
hudakz 1:4f5c042a2d34 350 the Library except as expressly provided under this License. Any
hudakz 1:4f5c042a2d34 351 attempt otherwise to copy, modify, sublicense, link with, or
hudakz 1:4f5c042a2d34 352 distribute the Library is void, and will automatically terminate your
hudakz 1:4f5c042a2d34 353 rights under this License. However, parties who have received copies,
hudakz 1:4f5c042a2d34 354 or rights, from you under this License will not have their licenses
hudakz 1:4f5c042a2d34 355 terminated so long as such parties remain in full compliance.
hudakz 1:4f5c042a2d34 356
hudakz 1:4f5c042a2d34 357 9. You are not required to accept this License, since you have not
hudakz 1:4f5c042a2d34 358 signed it. However, nothing else grants you permission to modify or
hudakz 1:4f5c042a2d34 359 distribute the Library or its derivative works. These actions are
hudakz 1:4f5c042a2d34 360 prohibited by law if you do not accept this License. Therefore, by
hudakz 1:4f5c042a2d34 361 modifying or distributing the Library (or any work based on the
hudakz 1:4f5c042a2d34 362 Library), you indicate your acceptance of this License to do so, and
hudakz 1:4f5c042a2d34 363 all its terms and conditions for copying, distributing or modifying
hudakz 1:4f5c042a2d34 364 the Library or works based on it.
hudakz 1:4f5c042a2d34 365
hudakz 1:4f5c042a2d34 366 10. Each time you redistribute the Library (or any work based on the
hudakz 1:4f5c042a2d34 367 Library), the recipient automatically receives a license from the
hudakz 1:4f5c042a2d34 368 original licensor to copy, distribute, link with or modify the Library
hudakz 1:4f5c042a2d34 369 subject to these terms and conditions. You may not impose any further
hudakz 1:4f5c042a2d34 370 restrictions on the recipients' exercise of the rights granted herein.
hudakz 1:4f5c042a2d34 371 You are not responsible for enforcing compliance by third parties with
hudakz 1:4f5c042a2d34 372 this License.
hudakz 1:4f5c042a2d34 373
hudakz 1:4f5c042a2d34 374 11. If, as a consequence of a court judgment or allegation of patent
hudakz 1:4f5c042a2d34 375 infringement or for any other reason (not limited to patent issues),
hudakz 1:4f5c042a2d34 376 conditions are imposed on you (whether by court order, agreement or
hudakz 1:4f5c042a2d34 377 otherwise) that contradict the conditions of this License, they do not
hudakz 1:4f5c042a2d34 378 excuse you from the conditions of this License. If you cannot
hudakz 1:4f5c042a2d34 379 distribute so as to satisfy simultaneously your obligations under this
hudakz 1:4f5c042a2d34 380 License and any other pertinent obligations, then as a consequence you
hudakz 1:4f5c042a2d34 381 may not distribute the Library at all. For example, if a patent
hudakz 1:4f5c042a2d34 382 license would not permit royalty-free redistribution of the Library by
hudakz 1:4f5c042a2d34 383 all those who receive copies directly or indirectly through you, then
hudakz 1:4f5c042a2d34 384 the only way you could satisfy both it and this License would be to
hudakz 1:4f5c042a2d34 385 refrain entirely from distribution of the Library.
hudakz 1:4f5c042a2d34 386
hudakz 1:4f5c042a2d34 387 If any portion of this section is held invalid or unenforceable under any
hudakz 1:4f5c042a2d34 388 particular circumstance, the balance of the section is intended to apply,
hudakz 1:4f5c042a2d34 389 and the section as a whole is intended to apply in other circumstances.
hudakz 1:4f5c042a2d34 390
hudakz 1:4f5c042a2d34 391 It is not the purpose of this section to induce you to infringe any
hudakz 1:4f5c042a2d34 392 patents or other property right claims or to contest validity of any
hudakz 1:4f5c042a2d34 393 such claims; this section has the sole purpose of protecting the
hudakz 1:4f5c042a2d34 394 integrity of the free software distribution system which is
hudakz 1:4f5c042a2d34 395 implemented by public license practices. Many people have made
hudakz 1:4f5c042a2d34 396 generous contributions to the wide range of software distributed
hudakz 1:4f5c042a2d34 397 through that system in reliance on consistent application of that
hudakz 1:4f5c042a2d34 398 system; it is up to the author/donor to decide if he or she is willing
hudakz 1:4f5c042a2d34 399 to distribute software through any other system and a licensee cannot
hudakz 1:4f5c042a2d34 400 impose that choice.
hudakz 1:4f5c042a2d34 401
hudakz 1:4f5c042a2d34 402 This section is intended to make thoroughly clear what is believed to
hudakz 1:4f5c042a2d34 403 be a consequence of the rest of this License.
hudakz 1:4f5c042a2d34 404
hudakz 1:4f5c042a2d34 405 12. If the distribution and/or use of the Library is restricted in
hudakz 1:4f5c042a2d34 406 certain countries either by patents or by copyrighted interfaces, the
hudakz 1:4f5c042a2d34 407 original copyright holder who places the Library under this License may add
hudakz 1:4f5c042a2d34 408 an explicit geographical distribution limitation excluding those countries,
hudakz 1:4f5c042a2d34 409 so that distribution is permitted only in or among countries not thus
hudakz 1:4f5c042a2d34 410 excluded. In such case, this License incorporates the limitation as if
hudakz 1:4f5c042a2d34 411 written in the body of this License.
hudakz 1:4f5c042a2d34 412
hudakz 1:4f5c042a2d34 413 13. The Free Software Foundation may publish revised and/or new
hudakz 1:4f5c042a2d34 414 versions of the Lesser General Public License from time to time.
hudakz 1:4f5c042a2d34 415 Such new versions will be similar in spirit to the present version,
hudakz 1:4f5c042a2d34 416 but may differ in detail to address new problems or concerns.
hudakz 1:4f5c042a2d34 417
hudakz 1:4f5c042a2d34 418 Each version is given a distinguishing version number. If the Library
hudakz 1:4f5c042a2d34 419 specifies a version number of this License which applies to it and
hudakz 1:4f5c042a2d34 420 "any later version", you have the option of following the terms and
hudakz 1:4f5c042a2d34 421 conditions either of that version or of any later version published by
hudakz 1:4f5c042a2d34 422 the Free Software Foundation. If the Library does not specify a
hudakz 1:4f5c042a2d34 423 license version number, you may choose any version ever published by
hudakz 1:4f5c042a2d34 424 the Free Software Foundation.
hudakz 1:4f5c042a2d34 425
hudakz 1:4f5c042a2d34 426 14. If you wish to incorporate parts of the Library into other free
hudakz 1:4f5c042a2d34 427 programs whose distribution conditions are incompatible with these,
hudakz 1:4f5c042a2d34 428 write to the author to ask for permission. For software which is
hudakz 1:4f5c042a2d34 429 copyrighted by the Free Software Foundation, write to the Free
hudakz 1:4f5c042a2d34 430 Software Foundation; we sometimes make exceptions for this. Our
hudakz 1:4f5c042a2d34 431 decision will be guided by the two goals of preserving the free status
hudakz 1:4f5c042a2d34 432 of all derivatives of our free software and of promoting the sharing
hudakz 1:4f5c042a2d34 433 and reuse of software generally.
hudakz 1:4f5c042a2d34 434
hudakz 1:4f5c042a2d34 435 NO WARRANTY
hudakz 1:4f5c042a2d34 436
hudakz 1:4f5c042a2d34 437 15. BECAUSE THE LIBRARY IS LICENSED FREE OF CHARGE, THERE IS NO
hudakz 1:4f5c042a2d34 438 WARRANTY FOR THE LIBRARY, TO THE EXTENT PERMITTED BY APPLICABLE LAW.
hudakz 1:4f5c042a2d34 439 EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR
hudakz 1:4f5c042a2d34 440 OTHER PARTIES PROVIDE THE LIBRARY "AS IS" WITHOUT WARRANTY OF ANY
hudakz 1:4f5c042a2d34 441 KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE
hudakz 1:4f5c042a2d34 442 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
hudakz 1:4f5c042a2d34 443 PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE
hudakz 1:4f5c042a2d34 444 LIBRARY IS WITH YOU. SHOULD THE LIBRARY PROVE DEFECTIVE, YOU ASSUME
hudakz 1:4f5c042a2d34 445 THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
hudakz 1:4f5c042a2d34 446
hudakz 1:4f5c042a2d34 447 16. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN
hudakz 1:4f5c042a2d34 448 WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY
hudakz 1:4f5c042a2d34 449 AND/OR REDISTRIBUTE THE LIBRARY AS PERMITTED ABOVE, BE LIABLE TO YOU
hudakz 1:4f5c042a2d34 450 FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR
hudakz 1:4f5c042a2d34 451 CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE
hudakz 1:4f5c042a2d34 452 LIBRARY (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING
hudakz 1:4f5c042a2d34 453 RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A
hudakz 1:4f5c042a2d34 454 FAILURE OF THE LIBRARY TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF
hudakz 1:4f5c042a2d34 455 SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
hudakz 1:4f5c042a2d34 456 DAMAGES.
hudakz 1:4f5c042a2d34 457
hudakz 1:4f5c042a2d34 458 END OF TERMS AND CONDITIONS
hudakz 1:4f5c042a2d34 459
hudakz 1:4f5c042a2d34 460 How to Apply These Terms to Your New Libraries
hudakz 1:4f5c042a2d34 461
hudakz 1:4f5c042a2d34 462 If you develop a new library, and you want it to be of the greatest
hudakz 1:4f5c042a2d34 463 possible use to the public, we recommend making it free software that
hudakz 1:4f5c042a2d34 464 everyone can redistribute and change. You can do so by permitting
hudakz 1:4f5c042a2d34 465 redistribution under these terms (or, alternatively, under the terms of the
hudakz 1:4f5c042a2d34 466 ordinary General Public License).
hudakz 1:4f5c042a2d34 467
hudakz 1:4f5c042a2d34 468 To apply these terms, attach the following notices to the library. It is
hudakz 1:4f5c042a2d34 469 safest to attach them to the start of each source file to most effectively
hudakz 1:4f5c042a2d34 470 convey the exclusion of warranty; and each file should have at least the
hudakz 1:4f5c042a2d34 471 "copyright" line and a pointer to where the full notice is found.
hudakz 1:4f5c042a2d34 472
hudakz 1:4f5c042a2d34 473 <one line to give the library's name and a brief idea of what it does.>
hudakz 1:4f5c042a2d34 474 Copyright (C) <year> <name of author>
hudakz 1:4f5c042a2d34 475
hudakz 1:4f5c042a2d34 476 This library is free software; you can redistribute it and/or
hudakz 1:4f5c042a2d34 477 modify it under the terms of the GNU Lesser General Public
hudakz 1:4f5c042a2d34 478 License as published by the Free Software Foundation; either
hudakz 1:4f5c042a2d34 479 version 2.1 of the License, or (at your option) any later version.
hudakz 1:4f5c042a2d34 480
hudakz 1:4f5c042a2d34 481 This library is distributed in the hope that it will be useful,
hudakz 1:4f5c042a2d34 482 but WITHOUT ANY WARRANTY; without even the implied warranty of
hudakz 1:4f5c042a2d34 483 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
hudakz 1:4f5c042a2d34 484 Lesser General Public License for more details.
hudakz 1:4f5c042a2d34 485
hudakz 1:4f5c042a2d34 486 You should have received a copy of the GNU Lesser General Public
hudakz 1:4f5c042a2d34 487 License along with this library; if not, write to the Free Software
hudakz 1:4f5c042a2d34 488 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
hudakz 1:4f5c042a2d34 489
hudakz 1:4f5c042a2d34 490 Also add information on how to contact you by electronic and paper mail.
hudakz 1:4f5c042a2d34 491
hudakz 1:4f5c042a2d34 492 You should also get your employer (if you work as a programmer) or your
hudakz 1:4f5c042a2d34 493 school, if any, to sign a "copyright disclaimer" for the library, if
hudakz 1:4f5c042a2d34 494 necessary. Here is a sample; alter the names:
hudakz 1:4f5c042a2d34 495
hudakz 1:4f5c042a2d34 496 Yoyodyne, Inc., hereby disclaims all copyright interest in the
hudakz 1:4f5c042a2d34 497 library `Frob' (a library for tweaking knobs) written by James Random Hacker.
hudakz 1:4f5c042a2d34 498
hudakz 1:4f5c042a2d34 499 <signature of Ty Coon>, 1 April 1990
hudakz 1:4f5c042a2d34 500 Ty Coon, President of Vice
hudakz 1:4f5c042a2d34 501
hudakz 1:4f5c042a2d34 502 That's all there is to it!
hudakz 1:4f5c042a2d34 503
hudakz 1:4f5c042a2d34 504
hudakz 1:4f5c042a2d34 505