INCLUDE_RCPP=`$(R_HOME)/bin/Rscript -e "Rcpp:::CxxFlags()"`
PKG_LIBS=$(LAPACK_LIBS) $(BLAS_LIBS) $(FLIBS) -L$(LIB_MPFR)/lib/$(R_ARCH) -lmpfr -lgmp
PKG_CXXFLAGS=$(INCLUDE_RCPP) -I$(LIB_MPFR)/include
CXX_STD = CXX11