GD32F450_BMC_BaseCode/app/goahead-3.6.5/doc/contents/licensing/gpl.html

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    title:  "GPL License",
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            <p>Embedthis software is distributed under Commercial and GPL Open Source licenses.
            The GPL License does not generally permit incorporating this software into
            non-open source programs.</p>

            <h2>GNU GENERAL PUBLIC LICENSE. Version 2, June 1991</h2>
            <h3>Preamble</h3>
            <p>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<br />
            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 Library General Public License instead.) You can apply it to your
            programs, too.</p>
            <p>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.</p>
            <p>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.</p>
            <p>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.</p>
            <p>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.</p>
            <p>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.</p>
            <p>Finally, any free program is threatened constantly by software patents. We wish to avoid the danger that
            redistributors of a free program will individually obtain patent licenses, in effect making the program
            proprietary. To prevent this, we have made it clear that any patent must be licensed for everyone's free
            use or not licensed at all.</p>
            <p>The precise terms and conditions for copying, distribution and modification follow.</p>
            <hr />
            <h3>GNU GENERAL PUBLIC LICENSE</h3>
            <h3>TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION</h3>
            <p>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".</p>
            <p>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.</p>
            <p>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;<br />
            and give any other recipients of the Program a copy of this License along with the Program.</p>
            <p>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.</p>
            <p>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:</p>
            <p>a) You must cause the modified files to carry prominent notices stating that you changed the files and
            the date of any change.</p>
            <p>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.</p>
            <p>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.)<br />
            <br />
            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.</p>
            <p>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.</p>
            <p>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.</p>
            <p>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:</p>
            <p>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,</p>
            <p>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,</p>
            <p>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.)</p>
            <p>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.</p>
            <p>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.<br />
            <br />
            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.</p>
            <p>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.</p>
            <p>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.</p>
            <p>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.</p>
            <p>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.</p>
            <p>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.</p>
            <p>This section is intended to make thoroughly clear what is believed to be a consequence of the rest of
            this License.<br />
            <br />
            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.</p>
            <p>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.</p>
            <p>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.</p>
            <p>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.</p>
            <p>NO WARRANTY</p>
            <p>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.</p>
            <p>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<br />
            PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.</p>
            <p>END OF TERMS AND CONDITIONS</p>
            <p>Copyright (C) 1989, 1991 Free Software Foundation, Inc.<br />
            59 Temple Place, Suite 330, Boston, MA 02111-1307 USA</p>
            <p>Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it
            is not allowed.</p>

            <h3>Other Licenses</h3>
            <p>See the
            <a href="https://github.com/embedthis/bit/tree/dev/LICENSE.md">LICENSE.md</a> for additional licenses
            for third-party components.</p>