Re:Clojure 1.9 is now available
by puredanger on Saturday December 09, 2017 @02:23PM
(#15887534)
Previously, there was no brew formula for clojure and there was a hardcoded pointer to leiningen. When the clojure formula was added, that was removed.
In fact it used to find leiningen instead of clojure; possibly clojure didn't exist as a brew tap before.