In the section of the Sage Developers guide
http://www.sagemath.org/doc/developer/inclusion.html
there is this one sentence.
"License. The license must be a GPL version 2+ compatible license."
Is that sufficient, or should that section be expanded? The question was raised
by Dima on http://trac.sagemath.org/sage_trac/ticket/10248 which I am working on.
I think that once sentence is technically all we need to say for packages, but
the fact it is so short means the issue does get raised a number of times on
sage-devel. So it would make sense to expand that section a bit, just so we can
point people at the Developers Guide, rather than discuss it endless times.
Note this is a section on packages for Sage, not the library, so there is really
no need to add that.
Perhaps a better wording might be the following, with inline links to the
licenses.
=================================================
The license must be a GPL version v2+ compatible license. A non-exhaustive list
of compatible licenses may be found on the GNU web site
http://www.gnu.org/licenses/license-list.html#GPLCompatibleLicenses
Note this list includes the GNU General Public License (GPL) versions 2 and 3,
the GNU Lesser General Public License (LGPL), a Modified BSD license, FreeBSD
license, the Zlib license, the license for of all recent versions of Python and
Public Domain software.
A list of incompatible licenses my be found at
http://www.gnu.org/licenses/license-list.html#GPLIncompatibleLicenses
Note this list of incompatible license includes the Original BSD license and the
OpenSSL license.
If you have any concerns about a specific license, feel free to discuss it on
sage-devel or email licens...@fsf.org for clarification.
=================================================
Would that seem a reasonable addition, which should hopefully reduced the amount
of time that the license issues needs to be discussed on sage-devel?
If so, I'll make those changes as part of
http://trac.sagemath.org/sage_trac/ticket/10248
Dave
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