[R-pkg-devel] best LICENSE practices: AGPL-3 + LaTeX Project Public License

[Ben Bolker]

   In the process of trying to get a package to build successfully on 
r-hub's Fedora platform, I had to add a whole bunch of LaTeX .sty files 
to the vignette directory.  One of these was collectbox.sty, which 
triggers the NOTE

---
NOTE
The following files contain a license that requires
distribution of original sources:
   ‘collectbox.sty’
---

   The licensing/copyright information in collectbox.sty is as follows:


%% The original source files were:
%%
%% collectbox.dtx  (with options: `collectbox.sty')
%%
%% IMPORTANT NOTICE:
%%
%% For the copyright see the source file.
%%
%% Any modified versions of this file must be renamed
%% with new filenames distinct from collectbox.sty.
%%
%% For distribution of the original source see the terms
%% for copying and modification in the file collectbox.dtx.
%%
%% This generated file may be distributed as long as the
%% original source files, as listed above, are part of the
%% same distribution. (The sources need not necessarily be
%% in the same archive or directory.)
%% Copyright (C) 2012 by Martin Scharrer <martin using scharrer-online.de>
%% --------------------------------------------------------------------
%% This work may be distributed and/or modified under the
%% conditions of the LaTeX Project Public License, either version 1.3
%% of this license or (at your option) any later version.
%% The latest version of this license is in
%%   http://www.latex-project.org/lppl.txt
%% and version 1.3 or later is part of all distributions of LaTeX
%% version 2005/12/01 or later.

    So I put collectbox.dtx into the inst/misc directory in the package. 
Fine.

  Now, what do I need to do to (1) make sure that my DESCRIPTION file is 
correct and (2) hopefully, suppress the NOTE so I don't have to explain 
it to the CRAN maintainers every time?

* Do I change the LICENCE line (which is currently AGPL-3)? According to 
https://cran.r-project.org/doc/manuals/R-exts.html#Licensing it would 
seem I would have to switch to "file LICENCE" (adding a 
"Licence_is_FOSS: yes"), where "LICENCE" contains something like

package code licensed under AGPL-3; file vignettes/collectbox.sty is 
under the LaTeX Project Public License (source provided in 
misc/collectbox.dtx)

? Should it say "file LICENCE" or "AGPL-3 + file LICENCE" ?

* Do I just include the files without comment, since I have complied (as 
far as I can tell) with the terms of the LPPL?

* Is there a way to signal to R CMD check that I *have* complied with 
the terms?

   cheers
    Ben Bolker