shells/ksh93 install fail

[jhell]

On Tue, Jun 21, 2011 at 12:48:57PM -0700, Doug Barton wrote:
> An effort to upgrade to 20110208_1 is failing for me:
> 
> ===>  Installing for ksh93-20110208_1
> ===>   Generating temporary packing list
> ===>  Checking if shells/ksh93 already installed
> install   -o root -g wheel -m 555 
> /usr/local/tmp/usr/ports/shells/ksh93/work/bin/ksh /usr/local/bin/ksh93
> install: $WRKDIRPREFIX/usr/ports/shells/ksh93/work/bin/ksh: No such file 
> or directory
> *** Error code 71
> 
> Is it possible that $WRKDIRPREFIX is the trigger?
> 

I did not actually see that here on 8-STABLE/i386, just for the record.