On 4/29/07, Josh Triplett <josh@freedesktop.org> wrote:
> If you created the bindings using ctypes or similar, where there's no > actual linking taking place, I think it's all OK. The specific technical mechanism used to link to libfoo doesn't matter. For the purposes of the GPL, it matters whether pyfoo forms a derivative work of libfoo. Whether that holds true for pyfoo or not depends on the details of pyfoo and libfoo. In the absence of strong technical evidence to the contrary, or specific precedent, I suggest you assume that pyfoo does derive from libfoo (regardless of the interface pyfoo uses to invoke libfoo).
"it matters whether pyfoo forms a derivative work of libfoo"
That's exactly why it does matter how it links. According to the FSF
linking does create a derivative work, although I wouldn't think dl()
would be considered as a derivative.
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