dev-R/Rcpp: update LICENSE

Signed-off-by: Alessandro Barbieri <lssndrbarbieri@gmail.com>

dev-R/Rcpp/Rcpp-1.0.8.3.ebuild

@@ -6,14 +6,24 @@ EAPI="7"
 inherit R-packages
 
 DESCRIPTION='Seamless R and C++ Integration'
-LICENSE='GPL-2+'
 HOMEPAGE="
 	https://www.rcpp.org
 	http://dirk.eddelbuettel.com/code/rcpp.html
 	https://github.com/RcppCore/Rcpp
 	https://cran.r-project.org/package=Rcpp
 "
+
+LICENSE='GPL-2+ Boost-1.0'
 KEYWORDS="~amd64"
+IUSE="examples"
+
+src_prepare() {
+	if ! use examples ; then
+		rm -r inst/examples || die
+	fi
+	rm -r inst/tinytest || die
+	R-packages_src_prepare
+}
 
 SUGGESTED_PACKAGES="
 	dev-R/tinytest