Krita, Ruby and Slackware

[John R. Culleton]

I have never had much luck with Krita on my Slackware Linux
system. Today I was playing with it once again and I got the
message "unknown interpreter: Ruby." A little googling around
showed that Slack doesn't have Ruby. So I downloaded Rubby and
did the usual ./configure, make, make test and make install routine. 
Unfortuntely Krita still doesn't find Ruby. But if I put 
ruby --help 
n a command line it executes OK. 

Do I have to reboot? Recompile Krita? What? 
-- 
John Culleton