Re: Ada and licensing

[Stephen Leake <stephen_leake@stephe-leake.org>]

Tomek Wałkuski <tomek.walkuski@gmail.com> writes:

> I'm not a language lawyer and I have heard many answers to my
> questions:

By posting here, you will hear many more.

If you need an authoritative answer for a business, you need to spend
money and ask a lawyer.

> 1. Can I use AdaCore's GNAT GPL compiler to produce propertiary
> software?

I think you mean "proprietary"; you own the software, and don't want
to give away the source.

The short answer is "no"; GPL prevents that.

> 2. If not, GCC version is provided with something like "GNAT modified
> provision". Huh? So maybe I can use this one!

Yes, the GNAT Modified GPL (GMGPL) is designed to allow people to
write code using Ada, and not be forced to give away the source.

> 3. GTK+ is licensed as LGPL, Ada bindings are licensed as GPL. So I
> can't use GtkAda in propertiary software?

If you are correct about the license on GtkAda (I have not checked),
and my understanding of what you mean by "propertiary" is correct,
your conclusion is correct.

-- 
-- Stephe