bar.cljs

(ns foo.bar
  (:require foo.core)
  #_(:require-macros foo.core))

(defn try-me []
  (foo.core/m))

core.cljc

(ns foo.core
  #?(:cljs (:require-macros foo.core)))

(defmacro m []
  `(foo.core/f))

(defn f []
  (when (< 0.5 (rand))
    (foo.core/m)))