Hello, I try to install udunits and RNetCDF packages With the first one after R CMD INSTALL udunits_1.2.tar.gz the script looks for the library, does not find and says to edit udunits_1.0/udunits/src/Makevars.in with links to an include file and location of the library. When I put the correct path the script repeats the previous message still looking for the library in the default path. How do I communicate the location of libraries/include files to R CMD INSTALL? Thanks, Mark