[R] ubuntu installation: can't find ldpaths

[Paul Murtaugh]

I'm trying to install R under Ubuntu 7.10 (gutsy; Linux 
2.6.22-15-generic x86_64). Following the instructions at 
http://cran.r-project.org/bin/linux/ubuntu/README, I installed r-base, 
r-base-core, and r-base-dev without any problems. When I open R, 
however, I get the message "Can't open /usr/lib64/R/etc/ldpaths".

That file is linked to /etc/R/ldpaths, which doesn't exist on my system.

   root# ls -l /usr/lib64/R/etc/ldpaths
   2008-09-24 13:44 /usr/lib64/R/etc/ldpaths -> /etc/R/ldpaths
   root# ls /etc/R
   root#

In fact, there doesn't appear to be an 'ldpaths' file anywhere, other 
than a link to /etc/R/ldpaths from another directory.

   root# find / -name 'ldpaths' -print
   /usr/lib/R/etc/ldpaths
   root at tabby:~# ls -l /usr/lib/R/etc/ldpaths
   2008-09-24 13:44 /usr/lib/R/etc/ldpaths -> /etc/R/ldpaths

Can anyone help?  Thanks in advance.

-Paul