added a few targets to makefile

Author: jonathan-taylor

Makefile

@@ -1,4 +1,14 @@
 Rcpp: 
 	- rm -f selectiveInference/src/RcppExports.cpp
 	- rm -f selectiveInference/R/RcppExports.R
-	Rscript -e "library(Rcpp); Rcpp::compileAttributes('selectiveInference')"
+	Rscript -e "library(Rcpp); Rcpp::compileAttributes('selectiveInference')"
+
+install: Rcpp
+	R CMD install selectiveInference
+
+build: 
+	R CMD build selectiveInference
+
+check: Rcpp build
+	R CMD build selectiveInference
+	R CMD check selectiveInference_1.2.2.tar.gz # fix this to be a script variable