From 0fc661ebabdf55b8e0d26c4f85f0547c106b6549 Mon Sep 17 00:00:00 2001
From: Nathanael Sensfelder <SpamShield0@MultiAgentSystems.org>
Date: Thu, 21 Sep 2017 15:26:01 +0200
Subject: Got some property dependencies to work.

---
 instance-calculator/Makefile | 16 ++++------------
 1 file changed, 4 insertions(+), 12 deletions(-)

(limited to 'instance-calculator/Makefile')

diff --git a/instance-calculator/Makefile b/instance-calculator/Makefile
index 9dddc88..9002ca1 100644
--- a/instance-calculator/Makefile
+++ b/instance-calculator/Makefile
@@ -1,24 +1,16 @@
 ## Parameters ##################################################################
 #### Where to find the model
-ifndef MODEL_DIR
-MODEL_DIR =
-endif
+MODEL_DIR ?=
 
 #### Where to store the Instance model
-ifndef MODEL_INSTANCES_DIR
-MODEL_INSTANCES_DIR =
-endif
+MODEL_INSTANCES_DIR ?=
 
 #### Binaries
 ###### JRE binary
-ifndef JAVA
-JAVA = java
-endif
+JAVA ?= java
 
 ###### JDK binary
-ifndef JAVAC
-JAVAC = javac
-endif
+JAVAC ?= javac
 
 ## Parameters Sanity Check #####################################################
 ifeq ($(strip $(MODEL_DIR)),)
-- 
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