> When Arbee said "send us back a stack of bugfixes", I assume he meant that the > OpenMSX guys specifically gave permission that their fixes be licensed both under > their own license and any licenses it had when in MAME as well. In that case its a > legal non-issue.
Correct. If you submit patches to a file, you obviously must agree to all of the license(s) the files were under.
In this specific case they were using it strictly under the terms of the LGPL v2.1, which meant they were obligated to send changes back to Olivier and myself. But in practice the license was a background formality like you'd hope.