| 
      1
     | 
    
      		  GNU LESSER GENERAL PUBLIC LICENSE
 
     | 
  
  
    | 
      2
     | 
    
      		       Version 2.1, February 1999
 
     | 
  
  
    | 
      3
     | 
    
      
 
     | 
  
  
    | 
      4
     | 
    
       Copyright (C) 1991, 1999 Free Software Foundation, Inc.
 
     | 
  
  
    | 
      5
     | 
    
           59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 
     | 
  
  
    | 
      6
     | 
    
       Everyone is permitted to copy and distribute verbatim copies
 
     | 
  
  
    | 
      7
     | 
    
       of this license document, but changing it is not allowed.
 
     | 
  
  
    | 
      8
     | 
    
      
 
     | 
  
  
    | 
      9
     | 
    
      [This is the first released version of the Lesser GPL.  It also counts
 
     | 
  
  
    | 
      10
     | 
    
       as the successor of the GNU Library Public License, version 2, hence
 
     | 
  
  
    | 
      11
     | 
    
       the version number 2.1.]
 
     | 
  
  
    | 
      12
     | 
    
      
 
     | 
  
  
    | 
      13
     | 
    
      			    Preamble
 
     | 
  
  
    | 
      14
     | 
    
      
 
     | 
  
  
    | 
      15
     | 
    
        The licenses for most software are designed to take away your
 
     | 
  
  
    | 
      16
     | 
    
      freedom to share and change it.  By contrast, the GNU General Public
 
     | 
  
  
    | 
      17
     | 
    
      Licenses are intended to guarantee your freedom to share and change
 
     | 
  
  
    | 
      18
     | 
    
      free software--to make sure the software is free for all its users.
 
     | 
  
  
    | 
      19
     | 
    
      
 
     | 
  
  
    | 
      20
     | 
    
        This license, the Lesser General Public License, applies to some
 
     | 
  
  
    | 
      21
     | 
    
      specially designated software packages--typically libraries--of the
 
     | 
  
  
    | 
      22
     | 
    
      Free Software Foundation and other authors who decide to use it.  You
 
     | 
  
  
    | 
      23
     | 
    
      can use it too, but we suggest you first think carefully about whether
 
     | 
  
  
    | 
      24
     | 
    
      this license or the ordinary General Public License is the better
 
     | 
  
  
    | 
      25
     | 
    
      strategy to use in any particular case, based on the explanations below.
 
     | 
  
  
    | 
      26
     | 
    
      
 
     | 
  
  
    | 
      27
     | 
    
        When we speak of free software, we are referring to freedom of use,
 
     | 
  
  
    | 
      28
     | 
    
      not price.  Our General Public Licenses are designed to make sure that
 
     | 
  
  
    | 
      29
     | 
    
      you have the freedom to distribute copies of free software (and charge
 
     | 
  
  
    | 
      30
     | 
    
      for this service if you wish); that you receive source code or can get
 
     | 
  
  
    | 
      31
     | 
    
      it if you want it; that you can change the software and use pieces of
 
     | 
  
  
    | 
      32
     | 
    
      it in new free programs; and that you are informed that you can do
 
     | 
  
  
    | 
      33
     | 
    
      these things.
 
     | 
  
  
    | 
      34
     | 
    
      
 
     | 
  
  
    | 
      35
     | 
    
        To protect your rights, we need to make restrictions that forbid
 
     | 
  
  
    | 
      36
     | 
    
      distributors to deny you these rights or to ask you to surrender these
 
     | 
  
  
    | 
      37
     | 
    
      rights.  These restrictions translate to certain responsibilities for
 
     | 
  
  
    | 
      38
     | 
    
      you if you distribute copies of the library or if you modify it.
 
     | 
  
  
    | 
      39
     | 
    
      
 
     | 
  
  
    | 
      40
     | 
    
        For example, if you distribute copies of the library, whether gratis
 
     | 
  
  
    | 
      41
     | 
    
      or for a fee, you must give the recipients all the rights that we gave
 
     | 
  
  
    | 
      42
     | 
    
      you.  You must make sure that they, too, receive or can get the source
 
     | 
  
  
    | 
      43
     | 
    
      code.  If you link other code with the library, you must provide
 
     | 
  
  
    | 
      44
     | 
    
      complete object files to the recipients, so that they can relink them
 
     | 
  
  
    | 
      45
     | 
    
      with the library after making changes to the library and recompiling
 
     | 
  
  
    | 
      46
     | 
    
      it.  And you must show them these terms so they know their rights.
 
     | 
  
  
    | 
      47
     | 
    
      
 
     | 
  
  
    | 
      48
     | 
    
        We protect your rights with a two-step method: (1) we copyright the
 
     | 
  
  
    | 
      49
     | 
    
      library, and (2) we offer you this license, which gives you legal
 
     | 
  
  
    | 
      50
     | 
    
      permission to copy, distribute and/or modify the library.
 
     | 
  
  
    | 
      51
     | 
    
      
 
     | 
  
  
    | 
      52
     | 
    
        To protect each distributor, we want to make it very clear that
 
     | 
  
  
    | 
      53
     | 
    
      there is no warranty for the free library.  Also, if the library is
 
     | 
  
  
    | 
      54
     | 
    
      modified by someone else and passed on, the recipients should know
 
     | 
  
  
    | 
      55
     | 
    
      that what they have is not the original version, so that the original
 
     | 
  
  
    | 
      56
     | 
    
      author's reputation will not be affected by problems that might be
 
     | 
  
  
    | 
      57
     | 
    
      introduced by others.
 
     | 
  
  
    | 
      58
     | 
    
      
 
     | 
  
  
    | 
      59
     | 
    
        Finally, software patents pose a constant threat to the existence of
 
     | 
  
  
    | 
      60
     | 
    
      any free program.  We wish to make sure that a company cannot
 
     | 
  
  
    | 
      61
     | 
    
      effectively restrict the users of a free program by obtaining a
 
     | 
  
  
    | 
      62
     | 
    
      restrictive license from a patent holder.  Therefore, we insist that
 
     | 
  
  
    | 
      63
     | 
    
      any patent license obtained for a version of the library must be
 
     | 
  
  
    | 
      64
     | 
    
      consistent with the full freedom of use specified in this license.
 
     | 
  
  
    | 
      65
     | 
    
      
 
     | 
  
  
    | 
      66
     | 
    
        Most GNU software, including some libraries, is covered by the
 
     | 
  
  
    | 
      67
     | 
    
      ordinary GNU General Public License.  This license, the GNU Lesser
 
     | 
  
  
    | 
      68
     | 
    
      General Public License, applies to certain designated libraries, and
 
     | 
  
  
    | 
      69
     | 
    
      is quite different from the ordinary General Public License.  We use
 
     | 
  
  
    | 
      70
     | 
    
      this license for certain libraries in order to permit linking those
 
     | 
  
  
    | 
      71
     | 
    
      libraries into non-free programs.
 
     | 
  
  
    | 
      72
     | 
    
      
 
     | 
  
  
    | 
      73
     | 
    
        When a program is linked with a library, whether statically or using
 
     | 
  
  
    | 
      74
     | 
    
      a shared library, the combination of the two is legally speaking a
 
     | 
  
  
    | 
      75
     | 
    
      combined work, a derivative of the original library.  The ordinary
 
     | 
  
  
    | 
      76
     | 
    
      General Public License therefore permits such linking only if the
 
     | 
  
  
    | 
      77
     | 
    
      entire combination fits its criteria of freedom.  The Lesser General
 
     | 
  
  
    | 
      78
     | 
    
      Public License permits more lax criteria for linking other code with
 
     | 
  
  
    | 
      79
     | 
    
      the library.
 
     | 
  
  
    | 
      80
     | 
    
      
 
     | 
  
  
    | 
      81
     | 
    
        We call this license the "Lesser" General Public License because it
 
     | 
  
  
    | 
      82
     | 
    
      does Less to protect the user's freedom than the ordinary General
 
     | 
  
  
    | 
      83
     | 
    
      Public License.  It also provides other free software developers Less
 
     | 
  
  
    | 
      84
     | 
    
      of an advantage over competing non-free programs.  These disadvantages
 
     | 
  
  
    | 
      85
     | 
    
      are the reason we use the ordinary General Public License for many
 
     | 
  
  
    | 
      86
     | 
    
      libraries.  However, the Lesser license provides advantages in certain
 
     | 
  
  
    | 
      87
     | 
    
      special circumstances.
 
     | 
  
  
    | 
      88
     | 
    
      
 
     | 
  
  
    | 
      89
     | 
    
        For example, on rare occasions, there may be a special need to
 
     | 
  
  
    | 
      90
     | 
    
      encourage the widest possible use of a certain library, so that it becomes
 
     | 
  
  
    | 
      91
     | 
    
      a de-facto standard.  To achieve this, non-free programs must be
 
     | 
  
  
    | 
      92
     | 
    
      allowed to use the library.  A more frequent case is that a free
 
     | 
  
  
    | 
      93
     | 
    
      library does the same job as widely used non-free libraries.  In this
 
     | 
  
  
    | 
      94
     | 
    
      case, there is little to gain by limiting the free library to free
 
     | 
  
  
    | 
      95
     | 
    
      software only, so we use the Lesser General Public License.
 
     | 
  
  
    | 
      96
     | 
    
      
 
     | 
  
  
    | 
      97
     | 
    
        In other cases, permission to use a particular library in non-free
 
     | 
  
  
    | 
      98
     | 
    
      programs enables a greater number of people to use a large body of
 
     | 
  
  
    | 
      99
     | 
    
      free software.  For example, permission to use the GNU C Library in
 
     | 
  
  
    | 
      100
     | 
    
      non-free programs enables many more people to use the whole GNU
 
     | 
  
  
    | 
      101
     | 
    
      operating system, as well as its variant, the GNU/Linux operating
 
     | 
  
  
    | 
      102
     | 
    
      system.
 
     | 
  
  
    | 
      103
     | 
    
      
 
     | 
  
  
    | 
      104
     | 
    
        Although the Lesser General Public License is Less protective of the
 
     | 
  
  
    | 
      105
     | 
    
      users' freedom, it does ensure that the user of a program that is
 
     | 
  
  
    | 
      106
     | 
    
      linked with the Library has the freedom and the wherewithal to run
 
     | 
  
  
    | 
      107
     | 
    
      that program using a modified version of the Library.
 
     | 
  
  
    | 
      108
     | 
    
      
 
     | 
  
  
    | 
      109
     | 
    
        The precise terms and conditions for copying, distribution and
 
     | 
  
  
    | 
      110
     | 
    
      modification follow.  Pay close attention to the difference between a
 
     | 
  
  
    | 
      111
     | 
    
      "work based on the library" and a "work that uses the library".  The
 
     | 
  
  
    | 
      112
     | 
    
      former contains code derived from the library, whereas the latter must
 
     | 
  
  
    | 
      113
     | 
    
      be combined with the library in order to run.
 
     | 
  
  
    | 
      114
     | 
    
      
 
     | 
  
  
    | 
      115
     | 
    
      		  GNU LESSER GENERAL PUBLIC LICENSE
 
     | 
  
  
    | 
      116
     | 
    
         TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
 
     | 
  
  
    | 
      117
     | 
    
      
 
     | 
  
  
    | 
      118
     | 
    
        0. This License Agreement applies to any software library or other
 
     | 
  
  
    | 
      119
     | 
    
      program which contains a notice placed by the copyright holder or
 
     | 
  
  
    | 
      120
     | 
    
      other authorized party saying it may be distributed under the terms of
 
     | 
  
  
    | 
      121
     | 
    
      this Lesser General Public License (also called "this License").
 
     | 
  
  
    | 
      122
     | 
    
      Each licensee is addressed as "you".
 
     | 
  
  
    | 
      123
     | 
    
      
 
     | 
  
  
    | 
      124
     | 
    
        A "library" means a collection of software functions and/or data
 
     | 
  
  
    | 
      125
     | 
    
      prepared so as to be conveniently linked with application programs
 
     | 
  
  
    | 
      126
     | 
    
      (which use some of those functions and data) to form executables.
 
     | 
  
  
    | 
      127
     | 
    
      
 
     | 
  
  
    | 
      128
     | 
    
        The "Library", below, refers to any such software library or work
 
     | 
  
  
    | 
      129
     | 
    
      which has been distributed under these terms.  A "work based on the
 
     | 
  
  
    | 
      130
     | 
    
      Library" means either the Library or any derivative work under
 
     | 
  
  
    | 
      131
     | 
    
      copyright law: that is to say, a work containing the Library or a
 
     | 
  
  
    | 
      132
     | 
    
      portion of it, either verbatim or with modifications and/or translated
 
     | 
  
  
    | 
      133
     | 
    
      straightforwardly into another language.  (Hereinafter, translation is
 
     | 
  
  
    | 
      134
     | 
    
      included without limitation in the term "modification".)
 
     | 
  
  
    | 
      135
     | 
    
      
 
     | 
  
  
    | 
      136
     | 
    
        "Source code" for a work means the preferred form of the work for
 
     | 
  
  
    | 
      137
     | 
    
      making modifications to it.  For a library, complete source code means
 
     | 
  
  
    | 
      138
     | 
    
      all the source code for all modules it contains, plus any associated
 
     | 
  
  
    | 
      139
     | 
    
      interface definition files, plus the scripts used to control compilation
 
     | 
  
  
    | 
      140
     | 
    
      and installation of the library.
 
     | 
  
  
    | 
      141
     | 
    
      
 
     | 
  
  
    | 
      142
     | 
    
        Activities other than copying, distribution and modification are not
 
     | 
  
  
    | 
      143
     | 
    
      covered by this License; they are outside its scope.  The act of
 
     | 
  
  
    | 
      144
     | 
    
      running a program using the Library is not restricted, and output from
 
     | 
  
  
    | 
      145
     | 
    
      such a program is covered only if its contents constitute a work based
 
     | 
  
  
    | 
      146
     | 
    
      on the Library (independent of the use of the Library in a tool for
 
     | 
  
  
    | 
      147
     | 
    
      writing it).  Whether that is true depends on what the Library does
 
     | 
  
  
    | 
      148
     | 
    
      and what the program that uses the Library does.
 
     | 
  
  
    | 
      149
     | 
    
        
 
     | 
  
  
    | 
      150
     | 
    
        1. You may copy and distribute verbatim copies of the Library's
 
     | 
  
  
    | 
      151
     | 
    
      complete source code as you receive it, in any medium, provided that
 
     | 
  
  
    | 
      152
     | 
    
      you conspicuously and appropriately publish on each copy an
 
     | 
  
  
    | 
      153
     | 
    
      appropriate copyright notice and disclaimer of warranty; keep intact
 
     | 
  
  
    | 
      154
     | 
    
      all the notices that refer to this License and to the absence of any
 
     | 
  
  
    | 
      155
     | 
    
      warranty; and distribute a copy of this License along with the
 
     | 
  
  
    | 
      156
     | 
    
      Library.
 
     | 
  
  
    | 
      157
     | 
    
      
 
     | 
  
  
    | 
      158
     | 
    
        You may charge a fee for the physical act of transferring a copy,
 
     | 
  
  
    | 
      159
     | 
    
      and you may at your option offer warranty protection in exchange for a
 
     | 
  
  
    | 
      160
     | 
    
      fee.
 
     | 
  
  
    | 
      161
     | 
    
      
 
     | 
  
  
    | 
      162
     | 
    
        2. You may modify your copy or copies of the Library or any portion
 
     | 
  
  
    | 
      163
     | 
    
      of it, thus forming a work based on the Library, and copy and
 
     | 
  
  
    | 
      164
     | 
    
      distribute such modifications or work under the terms of Section 1
 
     | 
  
  
    | 
      165
     | 
    
      above, provided that you also meet all of these conditions:
 
     | 
  
  
    | 
      166
     | 
    
      
 
     | 
  
  
    | 
      167
     | 
    
          a) The modified work must itself be a software library.
 
     | 
  
  
    | 
      168
     | 
    
      
 
     | 
  
  
    | 
      169
     | 
    
          b) You must cause the files modified to carry prominent notices
 
     | 
  
  
    | 
      170
     | 
    
          stating that you changed the files and the date of any change.
 
     | 
  
  
    | 
      171
     | 
    
      
 
     | 
  
  
    | 
      172
     | 
    
          c) You must cause the whole of the work to be licensed at no
 
     | 
  
  
    | 
      173
     | 
    
          charge to all third parties under the terms of this License.
 
     | 
  
  
    | 
      174
     | 
    
      
 
     | 
  
  
    | 
      175
     | 
    
          d) If a facility in the modified Library refers to a function or a
 
     | 
  
  
    | 
      176
     | 
    
          table of data to be supplied by an application program that uses
 
     | 
  
  
    | 
      177
     | 
    
          the facility, other than as an argument passed when the facility
 
     | 
  
  
    | 
      178
     | 
    
          is invoked, then you must make a good faith effort to ensure that,
 
     | 
  
  
    | 
      179
     | 
    
          in the event an application does not supply such function or
 
     | 
  
  
    | 
      180
     | 
    
          table, the facility still operates, and performs whatever part of
 
     | 
  
  
    | 
      181
     | 
    
          its purpose remains meaningful.
 
     | 
  
  
    | 
      182
     | 
    
      
 
     | 
  
  
    | 
      183
     | 
    
          (For example, a function in a library to compute square roots has
 
     | 
  
  
    | 
      184
     | 
    
          a purpose that is entirely well-defined independent of the
 
     | 
  
  
    | 
      185
     | 
    
          application.  Therefore, Subsection 2d requires that any
 
     | 
  
  
    | 
      186
     | 
    
          application-supplied function or table used by this function must
 
     | 
  
  
    | 
      187
     | 
    
          be optional: if the application does not supply it, the square
 
     | 
  
  
    | 
      188
     | 
    
          root function must still compute square roots.)
 
     | 
  
  
    | 
      189
     | 
    
      
 
     | 
  
  
    | 
      190
     | 
    
      These requirements apply to the modified work as a whole.  If
 
     | 
  
  
    | 
      191
     | 
    
      identifiable sections of that work are not derived from the Library,
 
     | 
  
  
    | 
      192
     | 
    
      and can be reasonably considered independent and separate works in
 
     | 
  
  
    | 
      193
     | 
    
      themselves, then this License, and its terms, do not apply to those
 
     | 
  
  
    | 
      194
     | 
    
      sections when you distribute them as separate works.  But when you
 
     | 
  
  
    | 
      195
     | 
    
      distribute the same sections as part of a whole which is a work based
 
     | 
  
  
    | 
      196
     | 
    
      on the Library, the distribution of the whole must be on the terms of
 
     | 
  
  
    | 
      197
     | 
    
      this License, whose permissions for other licensees extend to the
 
     | 
  
  
    | 
      198
     | 
    
      entire whole, and thus to each and every part regardless of who wrote
 
     | 
  
  
    | 
      199
     | 
    
      it.
 
     | 
  
  
    | 
      200
     | 
    
      
 
     | 
  
  
    | 
      201
     | 
    
      Thus, it is not the intent of this section to claim rights or contest
 
     | 
  
  
    | 
      202
     | 
    
      your rights to work written entirely by you; rather, the intent is to
 
     | 
  
  
    | 
      203
     | 
    
      exercise the right to control the distribution of derivative or
 
     | 
  
  
    | 
      204
     | 
    
      collective works based on the Library.
 
     | 
  
  
    | 
      205
     | 
    
      
 
     | 
  
  
    | 
      206
     | 
    
      In addition, mere aggregation of another work not based on the Library
 
     | 
  
  
    | 
      207
     | 
    
      with the Library (or with a work based on the Library) on a volume of
 
     | 
  
  
    | 
      208
     | 
    
      a storage or distribution medium does not bring the other work under
 
     | 
  
  
    | 
      209
     | 
    
      the scope of this License.
 
     | 
  
  
    | 
      210
     | 
    
      
 
     | 
  
  
    | 
      211
     | 
    
        3. You may opt to apply the terms of the ordinary GNU General Public
 
     | 
  
  
    | 
      212
     | 
    
      License instead of this License to a given copy of the Library.  To do
 
     | 
  
  
    | 
      213
     | 
    
      this, you must alter all the notices that refer to this License, so
 
     | 
  
  
    | 
      214
     | 
    
      that they refer to the ordinary GNU General Public License, version 2,
 
     | 
  
  
    | 
      215
     | 
    
      instead of to this License.  (If a newer version than version 2 of the
 
     | 
  
  
    | 
      216
     | 
    
      ordinary GNU General Public License has appeared, then you can specify
 
     | 
  
  
    | 
      217
     | 
    
      that version instead if you wish.)  Do not make any other change in
 
     | 
  
  
    | 
      218
     | 
    
      these notices.
 
     | 
  
  
    | 
      219
     | 
    
      
 
     | 
  
  
    | 
      220
     | 
    
        Once this change is made in a given copy, it is irreversible for
 
     | 
  
  
    | 
      221
     | 
    
      that copy, so the ordinary GNU General Public License applies to all
 
     | 
  
  
    | 
      222
     | 
    
      subsequent copies and derivative works made from that copy.
 
     | 
  
  
    | 
      223
     | 
    
      
 
     | 
  
  
    | 
      224
     | 
    
        This option is useful when you wish to copy part of the code of
 
     | 
  
  
    | 
      225
     | 
    
      the Library into a program that is not a library.
 
     | 
  
  
    | 
      226
     | 
    
      
 
     | 
  
  
    | 
      227
     | 
    
        4. You may copy and distribute the Library (or a portion or
 
     | 
  
  
    | 
      228
     | 
    
      derivative of it, under Section 2) in object code or executable form
 
     | 
  
  
    | 
      229
     | 
    
      under the terms of Sections 1 and 2 above provided that you accompany
 
     | 
  
  
    | 
      230
     | 
    
      it with the complete corresponding machine-readable source code, which
 
     | 
  
  
    | 
      231
     | 
    
      must be distributed under the terms of Sections 1 and 2 above on a
 
     | 
  
  
    | 
      232
     | 
    
      medium customarily used for software interchange.
 
     | 
  
  
    | 
      233
     | 
    
      
 
     | 
  
  
    | 
      234
     | 
    
        If distribution of object code is made by offering access to copy
 
     | 
  
  
    | 
      235
     | 
    
      from a designated place, then offering equivalent access to copy the
 
     | 
  
  
    | 
      236
     | 
    
      source code from the same place satisfies the requirement to
 
     | 
  
  
    | 
      237
     | 
    
      distribute the source code, even though third parties are not
 
     | 
  
  
    | 
      238
     | 
    
      compelled to copy the source along with the object code.
 
     | 
  
  
    | 
      239
     | 
    
      
 
     | 
  
  
    | 
      240
     | 
    
        5. A program that contains no derivative of any portion of the
 
     | 
  
  
    | 
      241
     | 
    
      Library, but is designed to work with the Library by being compiled or
 
     | 
  
  
    | 
      242
     | 
    
      linked with it, is called a "work that uses the Library".  Such a
 
     | 
  
  
    | 
      243
     | 
    
      work, in isolation, is not a derivative work of the Library, and
 
     | 
  
  
    | 
      244
     | 
    
      therefore falls outside the scope of this License.
 
     | 
  
  
    | 
      245
     | 
    
      
 
     | 
  
  
    | 
      246
     | 
    
        However, linking a "work that uses the Library" with the Library
 
     | 
  
  
    | 
      247
     | 
    
      creates an executable that is a derivative of the Library (because it
 
     | 
  
  
    | 
      248
     | 
    
      contains portions of the Library), rather than a "work that uses the
 
     | 
  
  
    | 
      249
     | 
    
      library".  The executable is therefore covered by this License.
 
     | 
  
  
    | 
      250
     | 
    
      Section 6 states terms for distribution of such executables.
 
     | 
  
  
    | 
      251
     | 
    
      
 
     | 
  
  
    | 
      252
     | 
    
        When a "work that uses the Library" uses material from a header file
 
     | 
  
  
    | 
      253
     | 
    
      that is part of the Library, the object code for the work may be a
 
     | 
  
  
    | 
      254
     | 
    
      derivative work of the Library even though the source code is not.
 
     | 
  
  
    | 
      255
     | 
    
      Whether this is true is especially significant if the work can be
 
     | 
  
  
    | 
      256
     | 
    
      linked without the Library, or if the work is itself a library.  The
 
     | 
  
  
    | 
      257
     | 
    
      threshold for this to be true is not precisely defined by law.
 
     | 
  
  
    | 
      258
     | 
    
      
 
     | 
  
  
    | 
      259
     | 
    
        If such an object file uses only numerical parameters, data
 
     | 
  
  
    | 
      260
     | 
    
      structure layouts and accessors, and small macros and small inline
 
     | 
  
  
    | 
      261
     | 
    
      functions (ten lines or less in length), then the use of the object
 
     | 
  
  
    | 
      262
     | 
    
      file is unrestricted, regardless of whether it is legally a derivative
 
     | 
  
  
    | 
      263
     | 
    
      work.  (Executables containing this object code plus portions of the
 
     | 
  
  
    | 
      264
     | 
    
      Library will still fall under Section 6.)
 
     | 
  
  
    | 
      265
     | 
    
      
 
     | 
  
  
    | 
      266
     | 
    
        Otherwise, if the work is a derivative of the Library, you may
 
     | 
  
  
    | 
      267
     | 
    
      distribute the object code for the work under the terms of Section 6.
 
     | 
  
  
    | 
      268
     | 
    
      Any executables containing that work also fall under Section 6,
 
     | 
  
  
    | 
      269
     | 
    
      whether or not they are linked directly with the Library itself.
 
     | 
  
  
    | 
      270
     | 
    
      
 
     | 
  
  
    | 
      271
     | 
    
        6. As an exception to the Sections above, you may also combine or
 
     | 
  
  
    | 
      272
     | 
    
      link a "work that uses the Library" with the Library to produce a
 
     | 
  
  
    | 
      273
     | 
    
      work containing portions of the Library, and distribute that work
 
     | 
  
  
    | 
      274
     | 
    
      under terms of your choice, provided that the terms permit
 
     | 
  
  
    | 
      275
     | 
    
      modification of the work for the customer's own use and reverse
 
     | 
  
  
    | 
      276
     | 
    
      engineering for debugging such modifications.
 
     | 
  
  
    | 
      277
     | 
    
      
 
     | 
  
  
    | 
      278
     | 
    
        You must give prominent notice with each copy of the work that the
 
     | 
  
  
    | 
      279
     | 
    
      Library is used in it and that the Library and its use are covered by
 
     | 
  
  
    | 
      280
     | 
    
      this License.  You must supply a copy of this License.  If the work
 
     | 
  
  
    | 
      281
     | 
    
      during execution displays copyright notices, you must include the
 
     | 
  
  
    | 
      282
     | 
    
      copyright notice for the Library among them, as well as a reference
 
     | 
  
  
    | 
      283
     | 
    
      directing the user to the copy of this License.  Also, you must do one
 
     | 
  
  
    | 
      284
     | 
    
      of these things:
 
     | 
  
  
    | 
      285
     | 
    
      
 
     | 
  
  
    | 
      286
     | 
    
          a) Accompany the work with the complete corresponding
 
     | 
  
  
    | 
      287
     | 
    
          machine-readable source code for the Library including whatever
 
     | 
  
  
    | 
      288
     | 
    
          changes were used in the work (which must be distributed under
 
     | 
  
  
    | 
      289
     | 
    
          Sections 1 and 2 above); and, if the work is an executable linked
 
     | 
  
  
    | 
      290
     | 
    
          with the Library, with the complete machine-readable "work that
 
     | 
  
  
    | 
      291
     | 
    
          uses the Library", as object code and/or source code, so that the
 
     | 
  
  
    | 
      292
     | 
    
          user can modify the Library and then relink to produce a modified
 
     | 
  
  
    | 
      293
     | 
    
          executable containing the modified Library.  (It is understood
 
     | 
  
  
    | 
      294
     | 
    
          that the user who changes the contents of definitions files in the
 
     | 
  
  
    | 
      295
     | 
    
          Library will not necessarily be able to recompile the application
 
     | 
  
  
    | 
      296
     | 
    
          to use the modified definitions.)
 
     | 
  
  
    | 
      297
     | 
    
      
 
     | 
  
  
    | 
      298
     | 
    
          b) Use a suitable shared library mechanism for linking with the
 
     | 
  
  
    | 
      299
     | 
    
          Library.  A suitable mechanism is one that (1) uses at run time a
 
     | 
  
  
    | 
      300
     | 
    
          copy of the library already present on the user's computer system,
 
     | 
  
  
    | 
      301
     | 
    
          rather than copying library functions into the executable, and (2)
 
     | 
  
  
    | 
      302
     | 
    
          will operate properly with a modified version of the library, if
 
     | 
  
  
    | 
      303
     | 
    
          the user installs one, as long as the modified version is
 
     | 
  
  
    | 
      304
     | 
    
          interface-compatible with the version that the work was made with.
 
     | 
  
  
    | 
      305
     | 
    
      
 
     | 
  
  
    | 
      306
     | 
    
          c) Accompany the work with a written offer, valid for at
 
     | 
  
  
    | 
      307
     | 
    
          least three years, to give the same user the materials
 
     | 
  
  
    | 
      308
     | 
    
          specified in Subsection 6a, above, for a charge no more
 
     | 
  
  
    | 
      309
     | 
    
          than the cost of performing this distribution.
 
     | 
  
  
    | 
      310
     | 
    
      
 
     | 
  
  
    | 
      311
     | 
    
          d) If distribution of the work is made by offering access to copy
 
     | 
  
  
    | 
      312
     | 
    
          from a designated place, offer equivalent access to copy the above
 
     | 
  
  
    | 
      313
     | 
    
          specified materials from the same place.
 
     | 
  
  
    | 
      314
     | 
    
      
 
     | 
  
  
    | 
      315
     | 
    
          e) Verify that the user has already received a copy of these
 
     | 
  
  
    | 
      316
     | 
    
          materials or that you have already sent this user a copy.
 
     | 
  
  
    | 
      317
     | 
    
      
 
     | 
  
  
    | 
      318
     | 
    
        For an executable, the required form of the "work that uses the
 
     | 
  
  
    | 
      319
     | 
    
      Library" must include any data and utility programs needed for
 
     | 
  
  
    | 
      320
     | 
    
      reproducing the executable from it.  However, as a special exception,
 
     | 
  
  
    | 
      321
     | 
    
      the materials to be distributed need not include anything that is
 
     | 
  
  
    | 
      322
     | 
    
      normally distributed (in either source or binary form) with the major
 
     | 
  
  
    | 
      323
     | 
    
      components (compiler, kernel, and so on) of the operating system on
 
     | 
  
  
    | 
      324
     | 
    
      which the executable runs, unless that component itself accompanies
 
     | 
  
  
    | 
      325
     | 
    
      the executable.
 
     | 
  
  
    | 
      326
     | 
    
      
 
     | 
  
  
    | 
      327
     | 
    
        It may happen that this requirement contradicts the license
 
     | 
  
  
    | 
      328
     | 
    
      restrictions of other proprietary libraries that do not normally
 
     | 
  
  
    | 
      329
     | 
    
      accompany the operating system.  Such a contradiction means you cannot
 
     | 
  
  
    | 
      330
     | 
    
      use both them and the Library together in an executable that you
 
     | 
  
  
    | 
      331
     | 
    
      distribute.
 
     | 
  
  
    | 
      332
     | 
    
      
 
     | 
  
  
    | 
      333
     | 
    
        7. You may place library facilities that are a work based on the
 
     | 
  
  
    | 
      334
     | 
    
      Library side-by-side in a single library together with other library
 
     | 
  
  
    | 
      335
     | 
    
      facilities not covered by this License, and distribute such a combined
 
     | 
  
  
    | 
      336
     | 
    
      library, provided that the separate distribution of the work based on
 
     | 
  
  
    | 
      337
     | 
    
      the Library and of the other library facilities is otherwise
 
     | 
  
  
    | 
      338
     | 
    
      permitted, and provided that you do these two things:
 
     | 
  
  
    | 
      339
     | 
    
      
 
     | 
  
  
    | 
      340
     | 
    
          a) Accompany the combined library with a copy of the same work
 
     | 
  
  
    | 
      341
     | 
    
          based on the Library, uncombined with any other library
 
     | 
  
  
    | 
      342
     | 
    
          facilities.  This must be distributed under the terms of the
 
     | 
  
  
    | 
      343
     | 
    
          Sections above.
 
     | 
  
  
    | 
      344
     | 
    
      
 
     | 
  
  
    | 
      345
     | 
    
          b) Give prominent notice with the combined library of the fact
 
     | 
  
  
    | 
      346
     | 
    
          that part of it is a work based on the Library, and explaining
 
     | 
  
  
    | 
      347
     | 
    
          where to find the accompanying uncombined form of the same work.
 
     | 
  
  
    | 
      348
     | 
    
      
 
     | 
  
  
    | 
      349
     | 
    
        8. You may not copy, modify, sublicense, link with, or distribute
 
     | 
  
  
    | 
      350
     | 
    
      the Library except as expressly provided under this License.  Any
 
     | 
  
  
    | 
      351
     | 
    
      attempt otherwise to copy, modify, sublicense, link with, or
 
     | 
  
  
    | 
      352
     | 
    
      distribute the Library is void, and will automatically terminate your
 
     | 
  
  
    | 
      353
     | 
    
      rights under this License.  However, parties who have received copies,
 
     | 
  
  
    | 
      354
     | 
    
      or rights, from you under this License will not have their licenses
 
     | 
  
  
    | 
      355
     | 
    
      terminated so long as such parties remain in full compliance.
 
     | 
  
  
    | 
      356
     | 
    
      
 
     | 
  
  
    | 
      357
     | 
    
        9. You are not required to accept this License, since you have not
 
     | 
  
  
    | 
      358
     | 
    
      signed it.  However, nothing else grants you permission to modify or
 
     | 
  
  
    | 
      359
     | 
    
      distribute the Library or its derivative works.  These actions are
 
     | 
  
  
    | 
      360
     | 
    
      prohibited by law if you do not accept this License.  Therefore, by
 
     | 
  
  
    | 
      361
     | 
    
      modifying or distributing the Library (or any work based on the
 
     | 
  
  
    | 
      362
     | 
    
      Library), you indicate your acceptance of this License to do so, and
 
     | 
  
  
    | 
      363
     | 
    
      all its terms and conditions for copying, distributing or modifying
 
     | 
  
  
    | 
      364
     | 
    
      the Library or works based on it.
 
     | 
  
  
    | 
      365
     | 
    
      
 
     | 
  
  
    | 
      366
     | 
    
        10. Each time you redistribute the Library (or any work based on the
 
     | 
  
  
    | 
      367
     | 
    
      Library), the recipient automatically receives a license from the
 
     | 
  
  
    | 
      368
     | 
    
      original licensor to copy, distribute, link with or modify the Library
 
     | 
  
  
    | 
      369
     | 
    
      subject to these terms and conditions.  You may not impose any further
 
     | 
  
  
    | 
      370
     | 
    
      restrictions on the recipients' exercise of the rights granted herein.
 
     | 
  
  
    | 
      371
     | 
    
      You are not responsible for enforcing compliance by third parties with
 
     | 
  
  
    | 
      372
     | 
    
      this License.
 
     | 
  
  
    | 
      373
     | 
    
      
 
     | 
  
  
    | 
      374
     | 
    
        11. If, as a consequence of a court judgment or allegation of patent
 
     | 
  
  
    | 
      375
     | 
    
      infringement or for any other reason (not limited to patent issues),
 
     | 
  
  
    | 
      376
     | 
    
      conditions are imposed on you (whether by court order, agreement or
 
     | 
  
  
    | 
      377
     | 
    
      otherwise) that contradict the conditions of this License, they do not
 
     | 
  
  
    | 
      378
     | 
    
      excuse you from the conditions of this License.  If you cannot
 
     | 
  
  
    | 
      379
     | 
    
      distribute so as to satisfy simultaneously your obligations under this
 
     | 
  
  
    | 
      380
     | 
    
      License and any other pertinent obligations, then as a consequence you
 
     | 
  
  
    | 
      381
     | 
    
      may not distribute the Library at all.  For example, if a patent
 
     | 
  
  
    | 
      382
     | 
    
      license would not permit royalty-free redistribution of the Library by
 
     | 
  
  
    | 
      383
     | 
    
      all those who receive copies directly or indirectly through you, then
 
     | 
  
  
    | 
      384
     | 
    
      the only way you could satisfy both it and this License would be to
 
     | 
  
  
    | 
      385
     | 
    
      refrain entirely from distribution of the Library.
 
     | 
  
  
    | 
      386
     | 
    
      
 
     | 
  
  
    | 
      387
     | 
    
      If any portion of this section is held invalid or unenforceable under any
 
     | 
  
  
    | 
      388
     | 
    
      particular circumstance, the balance of the section is intended to apply,
 
     | 
  
  
    | 
      389
     | 
    
      and the section as a whole is intended to apply in other circumstances.
 
     | 
  
  
    | 
      390
     | 
    
      
 
     | 
  
  
    | 
      391
     | 
    
      It is not the purpose of this section to induce you to infringe any
 
     | 
  
  
    | 
      392
     | 
    
      patents or other property right claims or to contest validity of any
 
     | 
  
  
    | 
      393
     | 
    
      such claims; this section has the sole purpose of protecting the
 
     | 
  
  
    | 
      394
     | 
    
      integrity of the free software distribution system which is
 
     | 
  
  
    | 
      395
     | 
    
      implemented by public license practices.  Many people have made
 
     | 
  
  
    | 
      396
     | 
    
      generous contributions to the wide range of software distributed
 
     | 
  
  
    | 
      397
     | 
    
      through that system in reliance on consistent application of that
 
     | 
  
  
    | 
      398
     | 
    
      system; it is up to the author/donor to decide if he or she is willing
 
     | 
  
  
    | 
      399
     | 
    
      to distribute software through any other system and a licensee cannot
 
     | 
  
  
    | 
      400
     | 
    
      impose that choice.
 
     | 
  
  
    | 
      401
     | 
    
      
 
     | 
  
  
    | 
      402
     | 
    
      This section is intended to make thoroughly clear what is believed to
 
     | 
  
  
    | 
      403
     | 
    
      be a consequence of the rest of this License.
 
     | 
  
  
    | 
      404
     | 
    
      
 
     | 
  
  
    | 
      405
     | 
    
        12. If the distribution and/or use of the Library is restricted in
 
     | 
  
  
    | 
      406
     | 
    
      certain countries either by patents or by copyrighted interfaces, the
 
     | 
  
  
    | 
      407
     | 
    
      original copyright holder who places the Library under this License may add
 
     | 
  
  
    | 
      408
     | 
    
      an explicit geographical distribution limitation excluding those countries,
 
     | 
  
  
    | 
      409
     | 
    
      so that distribution is permitted only in or among countries not thus
 
     | 
  
  
    | 
      410
     | 
    
      excluded.  In such case, this License incorporates the limitation as if
 
     | 
  
  
    | 
      411
     | 
    
      written in the body of this License.
 
     | 
  
  
    | 
      412
     | 
    
      
 
     | 
  
  
    | 
      413
     | 
    
        13. The Free Software Foundation may publish revised and/or new
 
     | 
  
  
    | 
      414
     | 
    
      versions of the Lesser General Public License from time to time.
 
     | 
  
  
    | 
      415
     | 
    
      Such new versions will be similar in spirit to the present version,
 
     | 
  
  
    | 
      416
     | 
    
      but may differ in detail to address new problems or concerns.
 
     | 
  
  
    | 
      417
     | 
    
      
 
     | 
  
  
    | 
      418
     | 
    
      Each version is given a distinguishing version number.  If the Library
 
     | 
  
  
    | 
      419
     | 
    
      specifies a version number of this License which applies to it and
 
     | 
  
  
    | 
      420
     | 
    
      "any later version", you have the option of following the terms and
 
     | 
  
  
    | 
      421
     | 
    
      conditions either of that version or of any later version published by
 
     | 
  
  
    | 
      422
     | 
    
      the Free Software Foundation.  If the Library does not specify a
 
     | 
  
  
    | 
      423
     | 
    
      license version number, you may choose any version ever published by
 
     | 
  
  
    | 
      424
     | 
    
      the Free Software Foundation.
 
     | 
  
  
    | 
      425
     | 
    
      
 
     | 
  
  
    | 
      426
     | 
    
        14. If you wish to incorporate parts of the Library into other free
 
     | 
  
  
    | 
      427
     | 
    
      programs whose distribution conditions are incompatible with these,
 
     | 
  
  
    | 
      428
     | 
    
      write to the author to ask for permission.  For software which is
 
     | 
  
  
    | 
      429
     | 
    
      copyrighted by the Free Software Foundation, write to the Free
 
     | 
  
  
    | 
      430
     | 
    
      Software Foundation; we sometimes make exceptions for this.  Our
 
     | 
  
  
    | 
      431
     | 
    
      decision will be guided by the two goals of preserving the free status
 
     | 
  
  
    | 
      432
     | 
    
      of all derivatives of our free software and of promoting the sharing
 
     | 
  
  
    | 
      433
     | 
    
      and reuse of software generally.
 
     | 
  
  
    | 
      434
     | 
    
      
 
     | 
  
  
    | 
      435
     | 
    
      			    NO WARRANTY
 
     | 
  
  
    | 
      436
     | 
    
      
 
     | 
  
  
    | 
      437
     | 
    
        15. BECAUSE THE LIBRARY IS LICENSED FREE OF CHARGE, THERE IS NO
 
     | 
  
  
    | 
      438
     | 
    
      WARRANTY FOR THE LIBRARY, TO THE EXTENT PERMITTED BY APPLICABLE LAW.
 
     | 
  
  
    | 
      439
     | 
    
      EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR
 
     | 
  
  
    | 
      440
     | 
    
      OTHER PARTIES PROVIDE THE LIBRARY "AS IS" WITHOUT WARRANTY OF ANY
 
     | 
  
  
    | 
      441
     | 
    
      KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE
 
     | 
  
  
    | 
      442
     | 
    
      IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 
     | 
  
  
    | 
      443
     | 
    
      PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE
 
     | 
  
  
    | 
      444
     | 
    
      LIBRARY IS WITH YOU.  SHOULD THE LIBRARY PROVE DEFECTIVE, YOU ASSUME
 
     | 
  
  
    | 
      445
     | 
    
      THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
 
     | 
  
  
    | 
      446
     | 
    
      
 
     | 
  
  
    | 
      447
     | 
    
        16. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN
 
     | 
  
  
    | 
      448
     | 
    
      WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY
 
     | 
  
  
    | 
      449
     | 
    
      AND/OR REDISTRIBUTE THE LIBRARY AS PERMITTED ABOVE, BE LIABLE TO YOU
 
     | 
  
  
    | 
      450
     | 
    
      FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR
 
     | 
  
  
    | 
      451
     | 
    
      CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE
 
     | 
  
  
    | 
      452
     | 
    
      LIBRARY (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING
 
     | 
  
  
    | 
      453
     | 
    
      RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A
 
     | 
  
  
    | 
      454
     | 
    
      FAILURE OF THE LIBRARY TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF
 
     | 
  
  
    | 
      455
     | 
    
      SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
 
     | 
  
  
    | 
      456
     | 
    
      DAMAGES.
 
     | 
  
  
    | 
      457
     | 
    
      
 
     | 
  
  
    | 
      458
     | 
    
      		     END OF TERMS AND CONDITIONS
 
     | 
  
  
    | 
      459
     | 
    
      
 
     | 
  
  
    | 
      460
     | 
    
                 How to Apply These Terms to Your New Libraries
 
     | 
  
  
    | 
      461
     | 
    
      
 
     | 
  
  
    | 
      462
     | 
    
        If you develop a new library, and you want it to be of the greatest
 
     | 
  
  
    | 
      463
     | 
    
      possible use to the public, we recommend making it free software that
 
     | 
  
  
    | 
      464
     | 
    
      everyone can redistribute and change.  You can do so by permitting
 
     | 
  
  
    | 
      465
     | 
    
      redistribution under these terms (or, alternatively, under the terms of the
 
     | 
  
  
    | 
      466
     | 
    
      ordinary General Public License).
 
     | 
  
  
    | 
      467
     | 
    
      
 
     | 
  
  
    | 
      468
     | 
    
        To apply these terms, attach the following notices to the library.  It is
 
     | 
  
  
    | 
      469
     | 
    
      safest to attach them to the start of each source file to most effectively
 
     | 
  
  
    | 
      470
     | 
    
      convey the exclusion of warranty; and each file should have at least the
 
     | 
  
  
    | 
      471
     | 
    
      "copyright" line and a pointer to where the full notice is found.
 
     | 
  
  
    | 
      472
     | 
    
      
 
     | 
  
  
    | 
      473
     | 
    
          <one line to give the library's name and a brief idea of what it does.>
 
     | 
  
  
    | 
      474
     | 
    
          Copyright (C) <year>  <name of author>
 
     | 
  
  
    | 
      475
     | 
    
      
 
     | 
  
  
    | 
      476
     | 
    
          This library is free software; you can redistribute it and/or
 
     | 
  
  
    | 
      477
     | 
    
          modify it under the terms of the GNU Lesser General Public
 
     | 
  
  
    | 
      478
     | 
    
          License as published by the Free Software Foundation; either
 
     | 
  
  
    | 
      479
     | 
    
          version 2.1 of the License, or (at your option) any later version.
 
     | 
  
  
    | 
      480
     | 
    
      
 
     | 
  
  
    | 
      481
     | 
    
          This library is distributed in the hope that it will be useful,
 
     | 
  
  
    | 
      482
     | 
    
          but WITHOUT ANY WARRANTY; without even the implied warranty of
 
     | 
  
  
    | 
      483
     | 
    
          MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 
     | 
  
  
    | 
      484
     | 
    
          Lesser General Public License for more details.
 
     | 
  
  
    | 
      485
     | 
    
      
 
     | 
  
  
    | 
      486
     | 
    
          You should have received a copy of the GNU Lesser General Public
 
     | 
  
  
    | 
      487
     | 
    
          License along with this library; if not, write to the Free Software
 
     | 
  
  
    | 
      488
     | 
    
          Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 
     | 
  
  
    | 
      489
     | 
    
      
 
     | 
  
  
    | 
      490
     | 
    
      Also add information on how to contact you by electronic and paper mail.
 
     | 
  
  
    | 
      491
     | 
    
      
 
     | 
  
  
    | 
      492
     | 
    
      You should also get your employer (if you work as a programmer) or your
 
     | 
  
  
    | 
      493
     | 
    
      school, if any, to sign a "copyright disclaimer" for the library, if
 
     | 
  
  
    | 
      494
     | 
    
      necessary.  Here is a sample; alter the names:
 
     | 
  
  
    | 
      495
     | 
    
      
 
     | 
  
  
    | 
      496
     | 
    
        Yoyodyne, Inc., hereby disclaims all copyright interest in the
 
     | 
  
  
    | 
      497
     | 
    
        library `Frob' (a library for tweaking knobs) written by James Random Hacker.
 
     | 
  
  
    | 
      498
     | 
    
      
 
     | 
  
  
    | 
      499
     | 
    
        <signature of Ty Coon>, 1 April 1990
 
     | 
  
  
    | 
      500
     | 
    
        Ty Coon, President of Vice
 
     | 
  
  
    | 
      501
     | 
    
      
 
     | 
  
  
    | 
      502
     | 
    
      That's all there is to it!
 
     | 
  
  
    | 
      503
     | 
    
      
 
     | 
  
  
    | 
      504
     | 
    
      
 
     |