[Rd] config error during 2.5.1 compile

[Evan Cooch]

For what its worth, I get the same error even if I do a naked 'config' 
(no lapack, no blas, no reference to ACML).
>
> config.status: error: cannot find input file: doc/manual/Makefile.in
>
>   


So, I think its a tarball issue.