Re: [Qemu-devel] [PATCH 2/2] Added target to build libvdisk

[Daniel P. Berrange]

On Tue, Aug 23, 2011 at 11:14:20AM -0500, Anthony Liguori wrote:
> On 08/23/2011 11:12 AM, Daniel P. Berrange wrote:
> >$(block-obj-y) pulls in  'aio.o' which is built from aio.c which
> >is licensed  "GPLv2 only". So even those many files are BSD
> >licenses, the combined work will be GPLv2-only. Unfortunately ending
> >up with a libqemublock.so which is GPLv2-only is as good as useless
> >for libs/apps since it is incompatible with both LGPLv2(+) and GPLv3.
> >
> >Now in this case aio.c is labelled as Copyright IBM / Anthony,
> >so IBM could likely resolve this licensing to be more widely
> >compatible. This could^H^Hwould become a non-trivial task if we
> >need to look at many files&  then also any patches accepted to
> >those files from 3rd parties over the years :-(
> 
> If there was a block driver library, I would expect it to be GPL, not LGPL.

This would prevent us from using it in libvirt, unless we wrote a
helper program which we spawned anytime we wanted to use some
functionality library :-(

Regards,
Daniel
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