[Rd] Is the ISC license acceptable for CRAN?

[Adler, Avraham]

Good afternoon.

The ISC (Internet Software Consortium) license[1] is a permissive, open-source license that is considered "functionally equivalent"[2] to the Simplified (2-clause) BSD[3]  and MIT[4] licenses, but with extraneous language removed. There is at least one package on CRAN which incorporates some code using it[5]. Are there plans to include this license in the list at <https://svn.r-project.org/R/trunk/share/licenses/license.db>? Will packages developed for R using this run into problems during submission?

Thank you,

Avraham Adler

[1] <http://opensource.org/licenses/ISC>
[2] <http://www.openbsd.org/policy.html>, <http://choosealicense.com/licenses/#isc>
[3] <http://opensource.org/licenses/BSD-2-Clause>
[4] <http://opensource.org/licenses/MIT>
[5] <http://cran.r-project.org/web/packages/ff/LICENSE>

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