os specific make file target

Author: petmongrels

makefiles/android-device.mk

@@ -50,7 +50,9 @@ get-db:
 	adb pull /data/data/$(android_package_name)/files/default.realm ../temp/
 
 open-db: get-db
+ifeq ($(UNAME), Darwin)
 	open ../temp/default.realm
+endif
 
 log:
 	adb logcat *:S ReactNative:V ReactNativeJS:V

makefiles/common.mk

@@ -18,4 +18,9 @@ ip:=$(if $(ip),$(ip),$(shell ifconfig | grep -A 2 'wlp' | grep 'inet ' | tail -1
 
 define _setup_hosts
 	sed 's/SERVER_URL_VAR/$(ip)/g' config/env/$1.json.template > config/env/dev.json
-endef
+endef
+
+UNAME := $(shell uname)
+
+check-uname:
+	@echo $(UNAME)