[time-nuts] Open source GPSDO

Bob Camp lists at rtty.us
Thu Dec 6 22:09:09 UTC 2012


Hi

Many of the vendor tool chains are now (or soon will be) gcc and Eclipse
based. It's very common to do "closed source" code on open source based
platforms.

Bob

-----Original Message-----
From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
Behalf Of David Kirkby
Sent: Thursday, December 06, 2012 3:56 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Open source GPSDO

On 6 December 2012 20:33, Chuck Harris <cfharris at erols.com> wrote:
> If by OpenSource he means that he used the OpenSource
> tool chain, and libraries, and then is keeping his source
> and executables closed, he may be in violation of
> the GNU licenses.
>
> -Chuck Harris

According to the web page

http://www.qsl.net/zl1bpu/MICRO/Index.htm#NOTES

the code is written in "Microsoft Quick Basic 3.2 compiler syntax".
So it is not an open-source tool chain.

I'm not sure what you mean by "OpenSource tool chain", but if you are
thinking of gcc, then there is a special GCC RUNTIME LIBRARY
EXCEPTION.

http://www.gnu.org/licenses/gcc-exception-3.1.html

so you can use gcc to create closed-source software, despite the fact
gcc is a GPL program.

As a reader of the gcc mailing lists, it is a fairly common question
on there, from people who want to use gcc for closed-source software,
but are not sure if it legal to do so. The answer is yes, you can use
gcc for commerical closed-source software.


Dave

> David Kirkby wrote:
>>
>> On 6 December 2012 18:28, Murray Greenman <denwood at orcon.net.nz> wrote:
>>>
>>> Keenan,
>>> You can see my GPSDO source code for a mere $50. It comes with manual
and
>>> executables. The executables alone are $20.
>>>
>>> See http://www.qsl.net/zl1bpu/MICRO/SIMPLE/SimpleGPS.htm
>>
>>
>> Murray ,
>>
>> There's a huge difference between open-source and paying $50 to view
>> the code for ones own use.
>>
>> Even if the code was cost just $0.01, but the code was not open to
>> public scrutiny, it detracts from its value. I've no objection to you,
>> or anyone else writing code for proffit - I have done it myself many
>> times. But your code is not open-source, and does not have the
>> advantages that open-source code has - open to public scrutiny,
>> ability to share improvements with the community etc. I can't quite
>> work out why the title is "Open source GPSDO" when the code is not
>> open-source.
>
>
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