A little more digging revealed a Unix/Windows discrepancy here.
On Unix, saving images and preparing for lazyloading/lazydata is done with
LC_ALL=C: on Windows with LC_COLLATE=C. I will change Windows to match.
Unfortunately how the C locale is implemented is OS-dependent. Strictly
it should
The report on R_help about problems loading package irr (in a
UTF-8 locale, it seemed) prompted me to look a little deeper. There are
quite a few packages with Latin-1 chars in their .R files, and a couple in
UTF-8.
Apart from non-ASCII chars in comments, this is a problem as the code
concern