On Mon, Mar 15, 2010 at 9:23 PM, <tytso@xxxxxxx> wrote: > On Mon, Mar 15, 2010 at 08:26:16PM +0300, Evgeniy Ivanov wrote: >> Just found, that recently FreeBSD got this: >> http://www.freebsd.org/cgi/cvsweb.cgi/src/sys/fs/ext2fs/ext2fs.h >> It looks like I can easily include it to the BSD-licensed project and >> no GPL violation. But I dunno how did they wrote ext2fs.h, since it >> still must be based on ext2_fs.h > > Constants and code points aren't subject to copyright, so they don't > have ask any question. The places where things start to get dicy is > with inline function and CPP macros, especially when the code starts > become non-trivial. i.e., there's only one way to do "(foo & MASK) != > 0", so that's probably not subject to copyright. A complicated 20 > line function, even if it's in a header file, is probably going to be > subject to copyright. What is and isn't a matter of copyright is > something you'd have to get a lawyer to answer for you. > > You can of couse also request permission, but that can get tricky, > especially if the person who originally wrote it can't easily be > tracked down (I haven't talked or e-mailed with Remy in years), or if > it was done by someone while being paid by their employer, in which > case some corporate lawyers might have to be dragged in to give > permission. > > Fortunately I don't think there's much in the way of complicated code > in the header files that you would have to deal with. > Thanks a lot for your answer. -- Evgeniy Ivanov -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
