R - grass (how can read the library in a binary-folder)

hi
i wont use R with grass6.1cvs.dmg
it have a library folder :  grasslib  that is installed   in   /usr/ 
local
there are other usefool binary packages
  alias libgrass and graphicslib at  http://www.kyngchaos.com/macosx/ 
downloads.php

if i wont install the R-spatial-packages (rgdal, spproy, and other)
how can i use the lib-binary folder ,   to resolve the dependencie  
issue for rgdal and other packages ?
is it possible ?

if is not possible, what are the source library that i must install  
for complete integration of R + Grass ?
gdal,  proy,  + ......? ....?

thank.
Massimo