On 2017-07-11 03:59-0700 Alan W. Irwin wrote: [...] <https://github.com/sakov/csa-c/blob/master/csa/LICENSE> [...]
1. Identify the modern full csa licensing from the above text. In the following steps I assume you will be able to identify it as a well-known free software license that is already known to be compatible with the DFSG.
My further google searching has found the above modern csa license text is likely an older variant of the latest 3-clause BSD license <https://www.freebsd.org/internal/software-license.html> where the variation is fundamentally to merge the first two clauses together so as not to distinguish between source and binary redistribution. Because this variant is not an exact official free software license (as far as I can tell) it presumably makes your job a little harder to satisfy yourself that it is DFSG compliant, but I remain confident (because it seems close in spirit to the 3-clause BSD) you will be able to do that. Alan
2. Find a modern e-mail address for Pavel (surely github provides that in some way, but I cannot find it). 3. Ask Pavel to allow us to relicense the stripped version of nn and csa that we adopted in 2003 (and which does not depend on the proprietary triangle software due to Joao's further modifications) with the free software license you have identified in the first step above. Alternatively, if it turns out the above modern licensing text for csa is not DFSG compatible, then ask Pavel to relicense our stripped version under the LGPL. Frankly, I would be surprised if he objected to either request, but to be clear I prefer the license above (if suitable) for our stripped version just to be consistent with the modern nn and csa licensing as much as possible (i.e., with the triangle note dropped). 4. Upstream change: Remove the misleading lib/nn/README and lib/csa/README files and replace those with lib/nn/LICENSE and lib/csa/LICENSE which are both consistent with the text in <https://github.com/sakov/csa-c/blob/master/csa/LICENSE> (or the LGPL if your research shows the above modern license is not DFSG compatible). If you are willing to deal with the first two of these issues I am willing to deal with the third and fourth, but if you would also like to follow through with the third as well (quoting any part of this e-mail you feel is relevant) that would be even more helpful! In sum, I am looking forward with your help to finishing the above steps to remove completely the licensing uncertainty for these two PLplot libraries.
__________________________ Alan W. Irwin Astronomical research affiliation with Department of Physics and Astronomy, University of Victoria (astrowww.phys.uvic.ca). Programming affiliations with the FreeEOS equation-of-state implementation for stellar interiors (freeeos.sf.net); the Time Ephemerides project (timeephem.sf.net); PLplot scientific plotting software package (plplot.sf.net); the libLASi project (unifont.org/lasi); the Loads of Linux Links project (loll.sf.net); and the Linux Brochure Project (lbproject.sf.net). __________________________ Linux-powered Science __________________________ ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Plplot-devel mailing list Plplot-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/plplot-devel
