[R-SIG-Mac] MASS library load error under R-1.9.0

[Stephen Shiboski]

I just built R-1.9.0 using tcl/tk & aqua support using instructions
gathered from this list. (Thanks for all the work getting the OS-X
version going.) I can now use the quartz() driver from a
Terminal shell as well as the R.app front-end.

However, the MASS library fails to load with the following error:

 > library(MASS)
Error in loadNamespace(i[[1]], c(lib.loc, .libPaths()), keep.source) :
         package 'mva' does not have a name space
Error in library(MASS) : package/namespace load failed

Any pointers on what's broken would be most appreciated.

Thanks,

-SS