new file mode 100644
--- /dev/null
+++ b/COPYING
@@ -0,0 +1,371 @@
+License (except system/visarc.cc, system/file.cc, system/file.h,
+         system/system_config.cc, system/system_config.h,
+         music2/wavfile.cc, scn2k/scn2kdump.cc and music2/wavefile.h):
+
+    Redistribution and use in source and binary forms, with or without
+    modification, are permitted provided that the following conditions
+    are met:
+    1. Redistributions of source code must retain the above copyright
+       notice, this list of conditions and the following disclaimer.
+    2. Redistributions in binary form must reproduce the above copyright
+       notice, this list of conditions and the following disclaimer in the
+       documentation and/or other materials provided with the distribution.
+    3. The name of the author may not be used to endorse or promote products
+       derived from this software without specific prior written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+    IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+    OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+    IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+    INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+    NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+    DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+    THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+    (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+    THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+
+License (for system/visarc.cc, system/file.cc, system/file.h,
+         system/system_config.cc, system/system_config.h,
+         music2/wavfile.cc, scn2k/scn2kdump.cc, and music2/wavefile.h):
+
+    		    GNU GENERAL PUBLIC LICENSE
+    		       Version 2, June 1991
+
+     Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
+     51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+     Everyone is permitted to copy and distribute verbatim copies
+     of this license document, but changing it is not allowed.
+
+    			    Preamble
+
+      The licenses for most software are designed to take away your
+    freedom to share and change it.  By contrast, the GNU General Public
+    License is intended to guarantee your freedom to share and change free
+    software--to make sure the software is free for all its users.  This
+    General Public License applies to most of the Free Software
+    Foundation's software and to any other program whose authors commit to
+    using it.  (Some other Free Software Foundation software is covered by
+    the GNU Lesser General Public License instead.)  You can apply it to
+    your programs, too.
+
+      When we speak of free software, we are referring to freedom, not
+    price.  Our General Public Licenses are designed to make sure that you
+    have the freedom to distribute copies of free software (and charge for
+    this service if you wish), that you receive source code or can get it
+    if you want it, that you can change the software or use pieces of it
+    in new free programs; and that you know you can do these things.
+
+      To protect your rights, we need to make restrictions that forbid
+    anyone to deny you these rights or to ask you to surrender the rights.
+    These restrictions translate to certain responsibilities for you if you
+    distribute copies of the software, or if you modify it.
+
+      For example, if you distribute copies of such a program, whether
+    gratis or for a fee, 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 show them these terms so they know their
+    rights.
+
+      We protect your rights with two steps: (1) copyright the software, and
+    (2) offer you this license which gives you legal permission to copy,
+    distribute and/or modify the software.
+
+      Also, for each author's protection and ours, we want to make certain
+    that everyone understands that there is no warranty for this free
+    software.  If the software is modified by someone else and passed on, we
+    want its recipients to know that what they have is not the original, so
+    that any problems introduced by others will not reflect on the original
+    authors' reputations.
+
+      Finally, any free program is threatened constantly by software
+    patents.  We wish to avoid the danger that redistributors of a free
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+    patent must be licensed for everyone's free use or not licensed at all.
+
+      The precise terms and conditions for copying, distribution and
+    modification follow.
+
+    		    GNU GENERAL PUBLIC LICENSE
+       TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+      0. This License applies to any program or other work which contains
+    a notice placed by the copyright holder saying it may be distributed
+    under the terms of this General Public License.  The "Program", below,
+    refers to any such program or work, and a "work based on the Program"
+    means either the Program or any derivative work under copyright law:
+    that is to say, a work containing the Program or a portion of it,
+    either verbatim or with modifications and/or translated into another
+    language.  (Hereinafter, translation is included without limitation in
+    the term "modification".)  Each licensee is addressed as "you".
+
+    Activities other than copying, distribution and modification are not
+    covered by this License; they are outside its scope.  The act of
+    running the Program is not restricted, and the output from the Program
+    is covered only if its contents constitute a work based on the
+    Program (independent of having been made by running the Program).
+    Whether that is true depends on what the Program does.
+
+      1. You may copy and distribute verbatim copies of the Program's
+    source code as you receive it, in any medium, provided that you
+    conspicuously and appropriately publish on each copy an appropriate
+    copyright notice and disclaimer of warranty; keep intact all the
+    notices that refer to this License and to the absence of any warranty;
+    and give any other recipients of the Program a copy of this License
+    along with the Program.
+
+    You may charge a fee for the physical act of transferring a copy, and
+    you may at your option offer warranty protection in exchange for a fee.
+
+      2. You may modify your copy or copies of the Program or any portion
+    of it, thus forming a work based on the Program, and copy and
+    distribute such modifications or work under the terms of Section 1
+    above, provided that you also meet all of these conditions:
+
+        a) You must cause the modified files to carry prominent notices
+        stating that you changed the files and the date of any change.
+
+        b) You must cause any work that you distribute or publish, that in
+        whole or in part contains or is derived from the Program or any
+        part thereof, to be licensed as a whole at no charge to all third
+        parties under the terms of this License.
+
+        c) If the modified program normally reads commands interactively
+        when run, you must cause it, when started running for such
+        interactive use in the most ordinary way, to print or display an
+        announcement including an appropriate copyright notice and a
+        notice that there is no warranty (or else, saying that you provide
+        a warranty) and that users may redistribute the program under
+        these conditions, and telling the user how to view a copy of this
+        License.  (Exception: if the Program itself is interactive but
+        does not normally print such an announcement, your work based on
+        the Program is not required to print an announcement.)
+
+    These requirements apply to the modified work as a whole.  If
+    identifiable sections of that work are not derived from the Program,
+    and can be reasonably considered independent and separate works in
+    themselves, then this License, and its terms, do not apply to those
+    sections when you distribute them as separate works.  But when you
+    distribute the same sections as part of a whole which is a work based
+    on the Program, the distribution of the whole must be on the terms of
+    this License, whose permissions for other licensees extend to the
+    entire whole, and thus to each and every part regardless of who wrote it.
+
+    Thus, it is not the intent of this section to claim rights or contest
+    your rights to work written entirely by you; rather, the intent is to
+    exercise the right to control the distribution of derivative or
+    collective works based on the Program.
+
+    In addition, mere aggregation of another work not based on the Program
+    with the Program (or with a work based on the Program) on a volume of
+    a storage or distribution medium does not bring the other work under
+    the scope of this License.
+
+      3. You may copy and distribute the Program (or a work based on it,
+    under Section 2) in object code or executable form under the terms of
+    Sections 1 and 2 above provided that you also do one of the following:
+
+        a) Accompany it with the complete corresponding machine-readable
+        source code, which must be distributed under the terms of Sections
+        1 and 2 above on a medium customarily used for software interchange; or,
+
+        b) Accompany it with a written offer, valid for at least three
+        years, to give any third party, for a charge no more than your
+        cost of physically performing source distribution, a complete
+        machine-readable copy of the corresponding source code, to be
+        distributed under the terms of Sections 1 and 2 above on a medium
+        customarily used for software interchange; or,
+
+        c) Accompany it with the information you received as to the offer
+        to distribute corresponding source code.  (This alternative is
+        allowed only for noncommercial distribution and only if you
+        received the program in object code or executable form with such
+        an offer, in accord with Subsection b above.)
+
+    The source code for a work means the preferred form of the work for
+    making modifications to it.  For an executable work, complete source
+    code means all the source code for all modules it contains, plus any
+    associated interface definition files, plus the scripts used to
+    control compilation and installation of the executable.  However, as a
+    special exception, the source code distributed need not include
+    anything that is normally distributed (in either source or binary
+    form) with the major components (compiler, kernel, and so on) of the
+    operating system on which the executable runs, unless that component
+    itself accompanies the executable.
+
+    If distribution of executable or object code is made by offering
+    access to copy from a designated place, then offering equivalent
+    access to copy the source code from the same place counts as
+    distribution of the source code, even though third parties are not
+    compelled to copy the source along with the object code.
+
+      4. You may not copy, modify, sublicense, or distribute the Program
+    except as expressly provided under this License.  Any attempt
+    otherwise to copy, modify, sublicense or distribute the Program is
+    void, and will automatically terminate your rights under this License.
+    However, parties who have received copies, or rights, from you under
+    this License will not have their licenses terminated so long as such
+    parties remain in full compliance.
+
+      5. You are not required to accept this License, since you have not
+    signed it.  However, nothing else grants you permission to modify or
+    distribute the Program or its derivative works.  These actions are
+    prohibited by law if you do not accept this License.  Therefore, by
+    modifying or distributing the Program (or any work based on the
+    Program), you indicate your acceptance of this License to do so, and
+    all its terms and conditions for copying, distributing or modifying
+    the Program or works based on it.
+
+      6. Each time you redistribute the Program (or any work based on the
+    Program), the recipient automatically receives a license from the
+    original licensor to copy, distribute or modify the Program subject to
+    these terms and conditions.  You may not impose any further
+    restrictions on the recipients' exercise of the rights granted herein.
+    You are not responsible for enforcing compliance by third parties to
+    this License.
+
+      7. If, as a consequence of a court judgment or allegation of patent
+    infringement or for any other reason (not limited to patent issues),
+    conditions are imposed on you (whether by court order, agreement or
+    otherwise) that contradict the conditions of this License, they do not
+    excuse you from the conditions of this License.  If you cannot
+    distribute so as to satisfy simultaneously your obligations under this
+    License and any other pertinent obligations, then as a consequence you
+    may not distribute the Program at all.  For example, if a patent
+    license would not permit royalty-free redistribution of the Program by
+    all those who receive copies directly or indirectly through you, then
+    the only way you could satisfy both it and this License would be to
+    refrain entirely from distribution of the Program.
+
+    If any portion of this section is held invalid or unenforceable under
+    any particular circumstance, the balance of the section is intended to
+    apply and the section as a whole is intended to apply in other
+    circumstances.
+
+    It is not the purpose of this section to induce you to infringe any
+    patents or other property right claims or to contest validity of any
+    such claims; this section has the sole purpose of protecting the
+    integrity of the free software distribution system, which is
+    implemented by public license practices.  Many people have made
+    generous contributions to the wide range of software distributed
+    through that system in reliance on consistent application of that
+    system; it is up to the author/donor to decide if he or she is willing
+    to distribute software through any other system and a licensee cannot
+    impose that choice.
+
+    This section is intended to make thoroughly clear what is believed to
+    be a consequence of the rest of this License.
+
+      8. If the distribution and/or use of the Program is restricted in
+    certain countries either by patents or by copyrighted interfaces, the
+    original copyright holder who places the Program under this License
+    may add an explicit geographical distribution limitation excluding
+    those countries, so that distribution is permitted only in or among
+    countries not thus excluded.  In such case, this License incorporates
+    the limitation as if written in the body of this License.
+
+      9. The Free Software Foundation may publish revised and/or new versions
+    of the General Public License from time to time.  Such new versions will
+    be similar in spirit to the present version, but may differ in detail to
+    address new problems or concerns.
+
+    Each version is given a distinguishing version number.  If the Program
+    specifies a version number of this License which applies to it and "any
+    later version", you have the option of following the terms and conditions
+    either of that version or of any later version published by the Free
+    Software Foundation.  If the Program does not specify a version number of
+    this License, you may choose any version ever published by the Free Software
+    Foundation.
+
+      10. If you wish to incorporate parts of the Program into other free
+    programs whose distribution conditions are different, write to the author
+    to ask for permission.  For software which is copyrighted by the Free
+    Software Foundation, write to the Free Software Foundation; we sometimes
+    make exceptions for this.  Our decision will be guided by the two goals
+    of preserving the free status of all derivatives of our free software and
+    of promoting the sharing and reuse of software generally.
+
+    			    NO WARRANTY
+
+      11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
+    FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
+    OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
+    PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
+    OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+    MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE RISK AS
+    TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE
+    PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
+    REPAIR OR CORRECTION.
+
+      12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+    WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
+    REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
+    INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
+    OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
+    TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
+    YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
+    PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
+    POSSIBILITY OF SUCH DAMAGES.
+
+    		     END OF TERMS AND CONDITIONS
+
+    	    How to Apply These Terms to Your New Programs
+
+      If you develop a new program, and you want it to be of the greatest
+    possible use to the public, the best way to achieve this is to make it
+    free software which everyone can redistribute and change under these terms.
+
+      To do so, attach the following notices to the program.  It is safest
+    to attach them to the start of each source file to most effectively
+    convey the exclusion of warranty; and each file should have at least
+    the "copyright" line and a pointer to where the full notice is found.
+
+        <one line to give the program's name and a brief idea of what it does.>
+        Copyright (C) <year>  <name of author>
+
+        This program is free software; you can redistribute it and/or modify
+        it under the terms of the GNU General Public License as published by
+        the Free Software Foundation; either version 2 of the License, or
+        (at your option) any later version.
+
+        This program is distributed in the hope that it will be useful,
+        but WITHOUT ANY WARRANTY; without even the implied warranty of
+        MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+        GNU General Public License for more details.
+
+        You should have received a copy of the GNU General Public License along
+        with this program; if not, write to the Free Software Foundation, Inc.,
+        51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+    Also add information on how to contact you by electronic and paper mail.
+
+    If the program is interactive, make it output a short notice like this
+    when it starts in an interactive mode:
+
+        Gnomovision version 69, Copyright (C) year name of author
+        Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+        This is free software, and you are welcome to redistribute it
+        under certain conditions; type `show c' for details.
+
+    The hypothetical commands `show w' and `show c' should show the appropriate
+    parts of the General Public License.  Of course, the commands you use may
+    be called something other than `show w' and `show c'; they could even be
+    mouse-clicks or menu items--whatever suits your program.
+
+    You should also get your employer (if you work as a programmer) or your
+    school, if any, to sign a "copyright disclaimer" for the program, if
+    necessary.  Here is a sample; alter the names:
+
+      Yoyodyne, Inc., hereby disclaims all copyright interest in the program
+      `Gnomovision' (which makes passes at compilers) written by James Hacker.
+
+      <signature of Ty Coon>, 1 April 1989
+      Ty Coon, President of Vice
+
+    This General Public License does not permit incorporating your program into
+    proprietary programs.  If your program is a subroutine library, you may
+    consider it more useful to permit linking proprietary applications with the
+    library.  If this is what you want to do, use the GNU Lesser General
+    Public License instead of this License.
+

--- a/font/codeconv_tbl.h
+++ b/font/codeconv_tbl.h
@@ -1,3 +1,30 @@
+/*
+ * Copyright (c) 2000, 2001 Yuki Sawada
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
 unsigned short unicode_tbl[][94] = {
 { /* category 01 */
 0x0000, 0x3001, 0x3002, 0xFF0C, 0xFF0E, 0x30FB, 0xFF1A, 0xFF1B,

--- a/scn2k/scn2k.h
+++ b/scn2k/scn2k.h
@@ -1,3 +1,30 @@
+/*
+ * Copyright (c) 2004-2006  Kazunori "jagarl" Ueno
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
 #ifndef __SCN2k_H__
 #define __SCN2k_H__