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Re: octave license is incompatible with openssl

From: Alex Vong
Subject: Re: octave license is incompatible with openssl
Date: Wed, 10 Aug 2016 00:00:59 +0800
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/24.5 (gnu/linux)

Hi octave devs,

During a look of the octave package in guix (a functional package
manager, part of gnu), we notice octave have an optional dependency on

However, since the license of octave (gpl3+) is incompatible
with that of openssl
(, the
resulting binary after linking is not re-distributable.

So, we drop the optional dependency to avoid the problem.

Is there any plan to fix this problem? There are some solutions we think
of: 1. add openssl linking exception to the license 2. provide support
for linking with gnutls as an alternative. In any case, I think we
should warn the user about it.

What are your ideas? (the messages below include the whole discussion on
the guix-devel mailing list)


Leo Famulari <address@hidden> writes:

> On Sat, Aug 06, 2016 at 09:52:39AM +0800, Alex Vong wrote:
>> Ricardo Wurmus <address@hidden> writes:
>> > Alex Vong <address@hidden> writes:
>> >
>> >> I notice 'octave 4.0.2' has 'address@hidden' as one of its inputs. As
>> >> far as I know, gplv3 is incompatible with openssl license
>> >> (
>> >
>> > Looks like you’re right.  Other projects add a special openSSL linking
>> > exception, but Octave does not seem to account for this.
>> >
>> >> How should we fix this?
>> >
>> > It seems that the use of openssl in Octave is optional, so we could
>> > probably just remove it.  From a cursory look it appears that it is used
>> > for not much more than the MD5 algorithm.  Would you like to submit a
>> > patch that removes openssl from the inputs?
>> >
>> Here it is. It takes a long time to track down that curl is pulling the
>> openssl depedency. I also upgrade octave to 4.0.3 and change to use
>> 'tar.xz'.
>> > It would be good to ask the Octave project if it would be possible to
>> > replace OpenSSL with, say, GnuTLS.
>> >
>> I agree, should we CC/forward this discussion to octave-devel list?
> Yes, I think we should work with them to resolve this issue.

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