[ESS] emacs freezes using readline

[Thomas Harte]

i'm experiencing emacs freezing when i do, e.g.:

	for (i in 1:5) {
		ans<- readline("continue? ")
		if (substr(ans, 1, 1) == "n") break
	}

but it works just find in the R console.  is there a fix for interactive input?


GNU Emacs 21.3.1 (i386-mingw-nt5.1.2600) of 2004-03-10 on NYAUMO 
> version
               _                           
platform       i386-pc-mingw32             
arch           i386                        
os             mingw32                     
system         i386, mingw32               
status                                     
major          2                           
minor          4.1                         
year           2006                        
month          12                          
day            18                          
svn rev        40228                       
language       R                           
version.string R version 2.4.1 (2006-12-18)
>