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

[Anthony Liguori <anthony@codemonkey.ws>]

On 08/23/2011 11:18 AM, Daniel P. Berrange wrote:
> 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 :-(

libvirtd is GPL, no?

But QEMU is GPL.  Libraries derived from QEMU will also be GPL.

Regards,

Anthony Liguori

>
> Regards,
> Daniel