--- ./libr/hash/Makefile.orig	2019-07-04 00:25:23.719185558 +0000
+++ ./libr/hash/Makefile	2019-07-04 00:25:55.795734142 +0000
@@ -6,7 +6,7 @@
 ifneq ($(OSTYPE),darwin)
 ifneq ($(OSTYPE),haiku)
 LDFLAGS+=-lm
-LINK=-lm
+LINK=-lm -L../util -lr_util
 endif
 endif