From mboxrd@z Thu Jan  1 00:00:00 1970
From: Keir Fraser <keir.fraser@eu.citrix.com>
Subject: Re: [ANNOUNCE] xen ocaml tools
Date: Tue, 17 Feb 2009 07:59:58 +0000
Message-ID: <C5C01EFE.2CAB%keir.fraser@eu.citrix.com>
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To: Jun Koi <junkoi2004@gmail.com>, Vincent Hanquez <Vincent.Hanquez@eu.citrix.com>
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On 17/02/2009 01:19, "Jun Koi" <junkoi2004@gmail.com> wrote:

>> libxenctrl is using the GPL license, whereas we chose the LGPL license with
>> ocaml static exception everywhere.
> 
> This part is interesting!
> 
> I have some doubts here: for ex, now I want to reimplement some parts
> of libxenstore in BSD or LGPL. But I cannot avoid to include
> "/usr/include/{xs,xenctrl|.h", because they have some must-have data
> definition. But it seems all these headers are in GPL, so my code
> violates the copyright! Or not??

I think as long as the boilerplate and formatting is your own, the actual
meat of the struct definitions you could take and relicense without really
any issue. Since as you say there is really no other way those definitions
could be written.

 -- Keir