developement location(One where a matching RTools is installed and R was built using those tools) the environment settings to have a local Package store found is a bit different. + +I make sure that the directory RR/library exists and then I +run this command and tar up the RR directory afRLIBSter: + + R CMD INSTALL --preclean -l ./RR/library package.tar.gx + tar -zcvf RLIBS.tar.gz RR + +With windows I ship cygwin tools for tar and gzip and associated +DLLs so there is some similarity between extractions by the +wrapper scripts.