Somehow, CRAN packages fail to get built.

 ... 
cp: /sw/src/fink.build/cran-rcpp-r32-0.12.3-1/Rcpp/tmp/RtmpoDj2G8/Rbuild16c1a4d0eb882/Rcpp/tmp/RtmpoDj2G8/Rbuild16c1a4d0eb882/Rcpp/tmp/RtmpoDj2G8/Rbuild16c1a4d0eb882/Rcpp/tmp/RtmpoDj2G8/Rbuild16c1a4d0eb882/Rcpp/tmp/RtmpoDj2G8/Rbuild16c1a4d0eb882/Rcpp/tmp/RtmpoDj2G8/Rbuild16c1a4d0eb882/Rcpp/tmp/RtmpoDj2G8/Rbuild16c1a4d0eb882/Rcpp/tmp/RtmpoDj2G8/Rbuild16c1a4d0eb882/Rcpp/tmp/RtmpoDj2G8/Rbuild16c1a4d0eb882/Rcpp/tmp/RtmpoDj2G8/Rbuild16c1a4d0eb882/Rcpp/tmp/RtmpoDj2G8/Rbuild16c1a4d0eb882/Rcpp/tmp/RtmpoDj2G8/Rbuild16c1a4d0eb882/Rcpp/tmp/RtmpoDj2G8/Rbuild16c1a4d0eb882/Rcpp/tmp/RtmpoDj2G8/Rbuild16c1a4d0eb882/Rcpp/tmp/RtmpoDj2G8/Rbuild16c1a4d0eb882/Rcpp/tmp/RtmpoDj2G8/Rbuild16c1a4d0eb882/Rcpp/tmp/RtmpoDj2G8/Rbuild16c1a4d0eb882/Rcpp/tmp/RtmpoDj2G8/Rbuild16c1a4d0eb882/Rcpp/tmp/RtmpoDj2G8/Rbuild16c1a4d0eb882/Rcpp/tmp/RtmpoDj2G8/Rbuild16c1a4d0eb882/Rcpp/tmp/RtmpoDj2G8/Rbuild16c1a4d0eb882/Rcpp/tmp/RtmpoDj2G8/Rbuild16c1a4d0eb882/Rcpp/tmp/RtmpoDj2G8/Rbuild16c1a4d0eb882/Rcpp/tmp/RtmpoDj2G8/Rbuild16c1a4d0eb882/Rcpp/tmp/RtmpoDj2G8/Rbuild16c1a4d0eb882: name too long (not copied)
 ERROR
copying to build directory failed

In such case, please rebuild r-base32 and reinstall it.

$ fink rebuild r-base32
$fink reinstall r-base32