From 2f90b4db1fe52b7d80250137105bd6127e94bda0 Mon Sep 17 00:00:00 2001
From: Adrian Bridgett <adrian@smop.co.uk>
Date: Wed, 23 Dec 2015 15:44:25 +0000
Subject: [PATCH] don't force MAVEN_OPTS

---
 make-distribution.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/make-distribution.sh b/make-distribution.sh
index 351b9e7d89a32..a38fd8df17206 100755
--- a/make-distribution.sh
+++ b/make-distribution.sh
@@ -159,7 +159,7 @@ fi
 # Build uber fat JAR
 cd "$SPARK_HOME"
 
-export MAVEN_OPTS="-Xmx2g -XX:MaxPermSize=512M -XX:ReservedCodeCacheSize=512m"
+export MAVEN_OPTS="${MAVEN_OPTS:--Xmx2g -XX:MaxPermSize=512M -XX:ReservedCodeCacheSize=512m}"
 
 # Store the command as an array because $MVN variable might have spaces in it.
 # Normal quoting tricks don't work.