--- PKGBUILD	2011-04-12 10:32:05.404588070 -0400
+++ PKGBUILD-new	2011-04-12 10:36:01.479636725 -0400
@@ -15,6 +15,7 @@
          'tk' 'libxt' 'libxmu' 'pango')
 makedepends=('openjdk6' 'gcc-fortran')
 options=('!makeflags')
+backup(usr/lib/R/etc/Makeconf usr/lib/R/etc/Renviron)
 source=("http://cran.r-project.org/src/base/R-2/R-${pkgver}.tar.gz"
 	'r.desktop'
 	'r.png')