Bug with Sys.glob?

When I run the example command of Sys.glob(), R crashes.

Sys.glob(file.path(R.home(), "library", "*", "R", "*.rdx"))

version

_
platform       i386-pc-mingw32
arch           i386
os             mingw32
system         i386, mingw32
status         alpha
major          2
minor          5.0
year           2007
month          03
day            30
svn rev        40957
language       R
version.string R version 2.5.0 alpha (2007-03-30 r40957)

Ronggui Huang
Department of Sociology
Fudan University, Shanghai, China