gd32450i-eval/app/goahead-5.1.0/doc/contents/licensing/index.html

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            <h1>Licensing</h1>
            <p>GoAhead is licensed under two separate licenses. You may use either, provide you fully comply with the
                governing terms.</p>
            <ul>
                <li><a href="https://embedthis.com/goahead/licensing.html">GoAhead Commercial License</a>.</li>
                <li><a href="gpl.html">GNU GPL</a> Open Source license.</li>
            </ul>

            <h2>GoAhead Commercial License</h2>
            <p>The GoAhead commercial license is a royalty-free license that provides you with the following benefits:</p>
            <ul>
                <li>The right to develop and modify the software to embed in your products</li>
                <li>The ability to redistribute your products with the software</li>
                <li>The ability to keep your source code private</li>
                <li>Simple royalty-free, one-time purchase options</li>
                <li>Software maintenance for updates, upgrades and security patches</li>
                <li>Priority software support services</li>
            </ul>
                
            <p>If you require a commercial license or commercial support for GoAhead, please contact us at:
            <a href="mailto:licensing@embedthis.com">licensing@embedthis.com</a>.</p>

            <h2>Open Source License</h2>
            <p>GoAhead my be used with the <a href="gpl.html">GPL Open Source license</a>. This is ideal for evaluating
            GoAhead, for internal use, stand-alone use, or for integrating exclusively with other GPL software.
            If you intend to distribute your software and link GoAhead with your application, the GPL requires you 
            to provide public and full access to all source code and documentation on a nondiscriminatory basis.
            If you do not wish to provide source code to your application, you must purchase a commercial license.</p>
            
            <h3>Evaluating GoAhead</h3>
            <p>If you are evaluating GoAhead internally, and not distributing any products containing GoAhead, then you may
            be able to use the GPL license for this evaluation. Once complete, you may purchase a commercial license so 
            that you can distribute your product. You may evaluate, develop, modify, and embed GoAhead in your
            application or product provided it is not distributed. You may copy and modify the source code provided 
            all copies fall under the GPL license.</p>

            <h3>Stand Alone Use</h3>
            <p>If you are using GoAhead in a stand-alone manner as free-standing binaries, and are not integrating the
            GoAhead source code or libraries with your software to create a derivative work, then the GPL license may
            be sufficient. Stand-alone use does not permit linking GoAhead using either static or dynamic linking.</p>

            <h3>Use with Other GPL Software</h3>
            <p>If you are integrating GoAhead source or libraries into your application and your software is also 
            fully licensed under the GPL license, you may use GoAhead with the GPL  license and embed GoAhead
            in your applications or devices. You do not need any other agreement or license &mdash; the GPL is all you
            require.</p>

            <h3>Embedding with Non-GPL Software</h3>
            <p>If GoAhead is embedded into your application, or your application is linked using static or dynamic
            linking with libraries containing any GoAhead source code and you do not wish to publish your source code
            under the GPL, then you will need the GoAhead Commercial license.</p>

            <p>Please contact <a href="mailto:licensing@embedthis.com">licensing@embedthis.com</a> if you have any
            questions about licensing GoAhead.</p>