New 'as' port: GPL requirements?
John Moran
jmoran-binutils@cyconix.com
Mon Nov 7 22:42:00 GMT 2005
Just going through your replies; thanks. Meanwhile, I noticed that I
misquoted the second reference:
> 2) "If a program released under the GPL uses plug-ins, what are the
> requirements for the licenses of a plug-in"
> (http://www.gnu.org/licenses/gpl-faq.html#GPLAndPlugins).
Should read:
> It depends on how the program invokes its plug-ins. If the program
> uses fork and exec to invoke plug-ins, then the plug-ins are separate
> programs, so the license for the main program makes no requirements
> for them.
>
> If the program dynamically links plug-ins, and they make function
> calls to each other and share data structures, we believe they form a
> single program, which must be treated as an extension of both the
> main program and the plug-ins. This means the plug-ins must be
> released under the GPL or a GPL-compatible free software license, and
> that the terms of the GPL must be followed when those plug-ins are
> distributed.
>
> If the program dynamically links plug-ins, but the communication
> between them is limited to invoking the `main' function of the
> plug-in with some options and waiting for it to return, that is a
> borderline case.
John
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