How do I correctly sub-license a library that is under the MIT license?

Posted by Petah on Programmers See other posts from Programmers or by Petah
Published on 2012-11-29T23:26:23Z Indexed on 2012/11/30 5:25 UTC
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licensing

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gpl

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commercial

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mit-license

How do I correctly sub-license a library that is under the MIT license.

I am using and extending the library. The MIT license states that I am free to sub-license the library.

Can I simply state:

<Software library> is copyright <original author> and licensed under the MIT license.

<orignal license>

Extensions to <Software library> are copyright <me> and licensed under the GPL license, 
or commercial license if applicable.

<GPL, or commercial license>

© Programmers or respective owner

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