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Re: CUPS driver licensing question

Dave Camp wrote:
If someone were to write a CUPS driver, but it did not link against
any CUPS libraries (it just needed the CUPS headers to build), and
wanted to distribute it for Mac OS X and Linux, would they be
required to GPL their source?

I know Mac OS X specific drivers are exempted, but it's not clear to
me from reading the license information that just using the headers
to compile would cause you to have to GPL a driver for other
platforms.

If you only used the headers and not any of the libraries associated
with the headers, then you would not need to provide source or
license your drivers for non-OSX platforms.

The kicker is if you link against the "cupsimage" library
(libcupsimage.so.2 on Linux, libcupsimage.2.dylib on OSX), then
you have linked to a GPL library. The exemption covers OSX but not
other platforms like Linux.

--
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Michael Sweet, Easy Software Products email@hidden
Printing Software for UNIX http://www.easysw.com
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References: 
 >CUPS driver licensing question (From: Dave Camp <email@hidden>)



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