[R] Error in untar2(tarfile, files, list, exdir) : unsupported entry type ‘x’

[Christopher Bare]

Hi R gurus,

I'm getting the following error when trying to build and install an R package:

Error in untar2(tarfile, files, list, exdir) : unsupported entry type ‘x’

I build the package like so:
R --no-init-file CMD build mypackage

Then try to install it:
sudo R --no-init-file CMD INSTALL mypackage.tar.gz

...which dies with the above error. I can extract the archive fine
with tar -zxf, so I don't think the file has problems.

R version 2.11.0 (2010-04-22)
OSX 10.6.3

Any hints would be greatly appreciated! Thanks,

-- chris