[R-SIG-Mac] Missing perl

[Dick De Veaux]

I had found the function
read.xls() in library gdata very useful, until one day I received the 
message

> filename=file.choose()
> read.xls(filename)
Error in system(cmd, intern = !verbose) : perl not found

Any clues as to how perl suddenly could disappear?
I don't remember changing anything...

(I can figure out many workarounds to reading Excel files, but I'm curious 
as to how this happened).

Thx,
Dick De Veaux