PKG_CPPFLAGS = -DCMAKE_OVERRIDDEN_DEFAULT_ENT_BACKEND=BOOST_BACKEND \
  -DCGAL_DISABLE_GMP=1 \
  -DCMAKE_DISABLE_FIND_PACKAGE_GMP=1
PKG_LIBS = `"$(R_HOME)/bin/Rscript" -e "RcppThread::LdFlags()"`
