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I am scanning commercial source code to ensure that it complies with Open Source licenses. In doing so I have come across a file derived from doxygen.css in what is obviously a directory of documents produced by Doxygen. From the Doxygen overview (http://www.stack.nl/~dimitri/doxygen/manual/index.html) I notice that "Documents produced by doxygen are derivative works derived from the input used in their production; they are not affected by this license". It looks like the intention there is that the "documents" are not subject to the GPL, and it applies in a straightforward way to documents primarily derived from "our sources". However the wording becomes problematic when I try to apply it to a file derived from doxygen.css as I can see a number of interpretations which would lead to opposite conclusions: 1. *.css are not "Documents" (they're support files), so the exception is void and GPL applies 2. The file I found is derived from doxygen.css which is part of the Doxygen project, hence subject to GPL, and that license "carries through" to the output version, so GPL applies. 3. The intended effect of this exemption is to allow "the output docs" to be distributed without GPL. The file I found is part of "the output docs", so GPL does not apply 4. The file I found is derived from Doxygen, but this exemption removes it from Doxygen's general GPL licensing. In other words: doxygen.css is subject to GPL while part of the Doxygen source, but not subject to it once placed in the output directory. So GPL does not apply. So: does the modified doxygen.css have to be distributed under the GPL? -- Alan Brogan Senior Software Configuration Engineer S3 Group P.S. While I fully appreciate that a definitive decision on this can only be given at court, I think the opinions of project owners / developers (who I hope read this list) would be helpful to such a court, and certainly helpful to ourselves in our scanning efforts (and fixes after scanning). ----- The information contained in this e-mail and in any attachments is confidential and is designated solely for the attention of the intended recipient(s). If you are not an intended recipient, you must not use, disclose, copy, distribute or retain this e-mail or any part thereof. If you have received this e-mail in error, please notify the sender by return e-mail and delete all copies of this e-mail from your computer system(s). Please direct any additional queries to: communicati...@s3group.com. Thank You. Silicon and Software Systems Limited (S3 Group). Registered in Ireland no. 378073. Registered Office: South County Business Park, Leopardstown, Dublin 18.
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