[Rd] license

Kasper Daniel Hansen kasperdanielhansen at gmail.com
Mon Sep 24 19:30:20 CEST 2012

R-devel now gives a warning for a non-standard license (this may have
happened for a while).

In Rgraphviz we include the Graphviz source code, which is under
Eclipse.  But the rest of the R package is under Artistic-2.0 or at
least contains code from past contributors which were licensed under

The standard licenses does not really give an option for this
situation, apart from using 'file LICENSE' (with details on this).

However, this situation - including an external piece of software -
seems to me to be increasingly common.  It may be worthwhile to have
the possibility of specifying this in a more machine readable way.
But it may also be too complicated.  I just wanted to bring attention
to the issue.


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