Note about the explicit Depends: r-cran-rgeos:

> library(maptools)
Checking rgeos availability: FALSE
    Note: when rgeos is not available, polygon geometry 	computations in maptools depend on gpclib,
    which has a restricted licence. It is disabled by default;
    to enable gpclib, type gpclibPermit()



Formerly the package contained some data sets which had either no
licensing statement at all or a non-commercial purposes license.  These
files are removed via Files-Excluded in debian/copyright to enable
distributing this package in Debian main.  The remaining data files
are assembled in a separate package in non-free.

Explanation for binary files inside source package according to
  http://lists.debian.org/debian-devel/2013/09/msg00332.html

Files: data/SplashDams.rda
  The documentation man/SplashDams.Rd describes this file as Data for Splash
  Dams in western Oregon which are published in
  R. R. Miller (2010) Is the Past Present? Historical Splash-dam Mapping and
  Stream Disturbance Detection in the Oregon Coastal Province. MSc. thesis,
  Oregon State University; packaged by Jonathan Callaha
  http://www.fs.fed.us/pnw/lwm/aem/docs/burnett/miller_rebecca_r2010rev.pdf

Files: inst/shapes/co37_d90.*
  The documentation man/ContourLines2SLDF.Rd describes this file as
  coastlines of varying resolution may be chosen online and these data were
  provided at http://www.census.gov/geo/cob/bdy/co/co90e00/co37_d90_e00.zip
  (which is not available at this place currentla / any more)

Files: inst/shapes/fylk-val*
  The documentation inst/README says they are copyright Statens Kartverk
  2001, and were released (with a collection of other shapefiles) to the
  public domain in July 2001. The link to the relevant page under
  http://www.statkart.no has now expired, this copy downloaded 13 July 2001.

Files: inst/share/gshhs_c.b
  The documentation man/Rgshhs.Rd describes this file as polygon data, which
  will read GSHHS polygons into SpatialPolygons object for a chosen region,
  using binary shorelines from Global Self-consistant Hierarchical
  High-resolution (Shorelines) Geography, release 2.3.0 of February 1, 2014
 (\url{http://www.soest.hawaii.edu/pwessel/gshhg/gshhg-bin-2.3.0.zip}). 


 -- Andreas Tille <tille@debian.org>  Mon, 23 Jun 2014 14:22:43 +0200
