Boost logo

Boost :

Subject: Re: [boost] BOOST license & GPL
From: Niklas Angare (li51ckf02_at_[hidden])
Date: 2017-04-01 18:22:25

"Andrey Semashev via Boost" wrote:
> [Standard disclaimer that I'm not a lawyer, and the following is my
> understanding.]


> Boost license (BSL) requires to "be included in all copies of the
> Software, in whole or in part, and all derivative works of the Software,
> unless such copies or derivative works are solely in the form of
> machine-executable object code generated by a source language processor."
> So the copied part is still under the Boost license (and the license must
> be present in that project in a way that makes it clear what code it
> applies to).

Makes sense. Since most Boost files don't include the entire license, it
probably needs to be included somewhere else along with the source code.

> However, the developers of that project can distribute their project as a
> whole under the GPL, including the parts under the BSL.

That's what I'm reading too. The Free Software Foundation believes the Boost
Software License is "compatible" with the GPL:

There is a definition of "compatible" in the gpl-faq you linked. Another is

But if they distribute the whole thing saying "this is licensed under the
GPL", doesn't that kind of contradict the requirement to include the Boost
Software License and the copyright notices? It would feel better to me if
they said "this is licensed under the GPL and, in part, other compatible


Niklas Angare

Boost list run by bdawes at, gregod at, cpdaniel at, john at