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+
+                        Crawl General Public Licence
+                                      
+                               Linley Henzell
+                    (Copyright 1997-1999 Linley Henzell)
+   
+     Yes, this is an almost exact copy of the Nethack Licence, but has
+     obviously been adapted for Crawl (under the 'terms for other
+     programs' portion of paragraph one). Crawl contains no code from
+     Nethack in any shape or form.
+     
+                Based on the NETHACK GENERAL PUBLIC LICENCE
+                       (Copyright 1989 M. Stephenson)
+   
+                 Based on the BISON GENERAL PUBLIC LICENCE
+                    (Copyright 1988 Richard M. Stallman)
+   
+     Everyone is permitted to copy and distribute verbatim copies of
+     this licence, but changing it is not allowed. You can also use this
+     wording to make the terms for other programs.
+     
+     The licence agreements of most software companies keep you at the
+     mercy of those companies. By contrast, our general public licence
+     is intended to give everyone the right to share Crawl. To make sure
+     that you get the rights we want you to have, we need to make
+     restrictions that forbid anyone to deny you these rights or to ask
+     you to surrender the rights. Hence this licence agreement.
+     
+     Specifically, we want to make sure that you have the right to give
+     away copies of Crawl, that you receive source code or else can get
+     it if you want it, that you can change Crawl or use pieces of it in
+     new free programs, and that you know you can do these things.
+     
+     To make sure that everyone has such rights, we have to forbid you
+     to deprive anyone else of these rights. For example, if you
+     distribute copies of Crawl, you must give the recipients all the
+     rights that you have. You must make sure that they, too, receive or
+     can get the source code. And you must tell them their rights.
+     
+     Also, for our own protection, we must make certain that everyone
+     finds out that there is no warranty for Crawl. If Crawl is modified
+     by someone else and passed on, we want its recipients to know that
+     what they have is not what we distributed.
+     
+     Therefore I (Linley Henzell, the copyright holder of Crawl) make
+     the following terms which say what you must do to be allowed to
+     distribute or change Crawl.
+     
+                              COPYING POLICIES
+   
+    1. You may copy and distribute verbatim copies of Crawl source code
+       as you receive it, in any medium, provided that you keep intact
+       the notices on all files that refer to copyrights, to this Licence
+       Agreement, and to the absence of any warranty; and give any other
+       recipients of the Crawl program a copy of this Licence Agreement
+       along with the program.
+    2. You may modify your copy or copies of Crawl or any portion of it,
+       and copy and distribute such modifications under the terms of
+       Paragraph 1 above (including distributing this Licence Agreement),
+       provided that you also do the following:
+         a. cause the modified files to carry prominent notices stating
+            that you changed the files and the date of any change; and
+         b. cause the whole of any work that you distribute or publish,
+            that in whole or in part contains or is a derivative of Crawl
+            or any part thereof, to be licensed at no charge to all third
+            parties on terms identical to those contained in this Licence
+            Agreement (except that you may choose to grant more extensive
+            warranty protection to some or all third parties, at your
+            option)
+         c. You may charge a distribution fee for the physical act of
+            transferring a copy, and you may at your option offer
+            warranty protection in exchange for a fee.
+    3. You may copy and distribute Crawl (or a portion or derivative of
+       it, under Paragraph 2) in object code or executable form under the
+       terms of Paragraphs 1 and 2 above provided that you also do one of
+       the following:
+         a. accompany it with the complete machine-readable source code,
+            which must be distributed under the terms of Paragraphs 1 and
+            2 above; or,
+         b. accompany it with full information as to how to obtain the
+            complete machine-readable source code from an appropriate
+            archive site. (This alternative is allowed only for
+            noncommercial distribution.)
+       For these purposes, complete source code means either the full
+       source distribution as available from my web site or updated
+       copies of the files in this distribution used to create the object
+       code or executable.
+    4. You may not copy, sublicence, distribute or transfer Crawl except
+       as expressly provided under this Licence Agreement. Any attempt
+       otherwise to copy, sublicence, distribute or transfer Crawl is
+       void and your rights to use the program under this Licence
+       agreement shall be automatically terminated. However, parties who
+       have received computer software programs from you with this
+       Licence Agreement will not have their licences terminated so long
+       as such parties remain in full compliance.
+       
+     Stated plainly: You are prohibited by the terms of this Licence
+     Agreement from using Crawl for gainful purposes. You are permitted
+     to modify Crawl, or otherwise use parts of Crawl, provided that you
+     comply with the conditions specified above; in particular, your
+     modified Crawl or program containing parts of Crawl must remain
+     freely available as provided in this Licence Agreement. In other
+     words, go ahead and share Crawl, but don't try to stop anyone else
+     from sharing it farther.