[Rd] Package install problem in R-devel under Windows

[Henric Winell]

Hi,

Using the latest R-devel under Windows, I've encountered the following 
problem when trying to install packages at the prompt:

 >R CMD INSTALL d:\inum_0.1-0.tar.gz
* installing to library 'C:\Users\henwin\R\win-library\3.4'
* installing *source* package 'inum' ...
** R
** preparing package for lazy loading
** help
*** installing help indices
** building package indices
** testing if installed package can be loaded
*** arch - i386
Error: '\U' used without hex digits in character string starting "'C:\U"
Execution halted
*** arch - x64
Error: '\U' used without hex digits in character string starting "'C:\U"
Execution halted
ERROR: loading failed for 'i386', 'x64'
* removing 'C:\Users\henwin\R\win-library\3.4/inum'

So, it seems that it doesn't correctly escape the '\' anymore...? 
However, installing from within Rgui works without a hitch.  Also, in 
latest R-3.3.1patched it works as expected:

C:\Program Files\R\R-3.3.1patched\bin>R CMD INSTALL d:\inum_0.1-0.tar.gz
* installing to library 'C:/Users/hennil/R/win-library/3.3'
* installing *source* package 'inum' ...
** R
** preparing package for lazy loading
** help
*** installing help indices
** building package indices
** testing if installed package can be loaded
*** arch - i386
*** arch - x64
* DONE (inum)


Is this a known issue?  Or is it just me...?

Henric Winell