Do not match inet6 addresses on MacOS

docker-compose/Makefile

@@ -55,7 +55,7 @@ else
 	endif
 	ifeq ($(UNAME_S),Darwin)
 		IF_INTERFACE := $(shell netstat -nr | awk '{ if ($$1 ~/default/) { print $$6} }')
-		DISPLAY := $(shell ifconfig $(IF_INTERFACE) | awk '{ if ($$1 ~/inet/) { print $$2} }'):0
+		DISPLAY := $(shell ifconfig $(IF_INTERFACE) | awk '{ if ($$1 ~/inet$$/) { print $$2} }'):0
 		# network_mode = host doesn't work on MacOS, so fix to the internal network
 		NETWORK_MODE ?= tangonet
 		XAUTHORITY_MOUNT := $(HOME)/.Xauthority:/hosthome/.Xauthority:ro