Public Doamin FFT software for real numbers

On 23.03.2015 3:35, Randy Yates wrote:
> "mnentwig" <24789@dsprelated> writes:
>
>> Thanks.
>> GPL can be a problem in industrial applications.
>> A long time ago I used FFTW in internal code that suddenly became part of a
>> product deal. We had to replace it.
>
> Doesn't GPL say that if you keep it as a shared library you're free to
> use it for-profit?
>

Nope. The license which allows that is LGPL (Lesser GPL).

Evgeny.

Evgeny Filatov <e.v.filatov@ieee.org> wrote:
> On 23.03.2015 3:35, Randy Yates wrote:
>> "mnentwig" <24789@dsprelated> writes:

>>> Thanks.
>>> GPL can be a problem in industrial applications.
>>> A long time ago I used FFTW in internal code that suddenly became part of a
>>> product deal. We had to replace it.

>> Doesn't GPL say that if you keep it as a shared library you're free to
>> use it for-profit?
 
> Nope. The license which allows that is LGPL (Lesser GPL).

It depends on the meaning of "mere aggregation".

I won't try to define it.

-- glen