Il 01/03/2012 21:26, Kai Meyer ha scritto: >> QEMU uses GPL v2. You can use a patched QEMU internally, >> but as soon as you want to give it to customers (or get it integrated >> in the official source tree), you must publish all code which is needed >> under an open license. > > It is a shared library. > >> If your image access library is a shared library (linked at runtime), >> the situation is more difficult. The intention of the GPL is still >> that you have to publish your code (this is also what the FSF says), >> but there are different opinions for GPL v2.
There aren't really different opinions. Some people *tolerate* proprietary plugins, but strictly speaking that should be done with a specific exception to the GPL. It is not "some people think it's legal, some people don't". It is more like "some people don't care, some people do". > http://wiki.qemu.org/License > Portions of qemu (ie the qed block driver) are licensed under the LGPL. > Can you help me understand the impact of licensing our contributions > under the LGPL instead of GPL? No. The LGPL parts are separate, but when you distribute the combination you still have to honor _all_ the licenses at the same time. In practice this means the most restrictive license, which is the GPL. Paolo
