HIVE-9608 - Define SPARK_HOME if not defined automagically (Brock reviewed by Xuefu)
HIVE-9608 - Define SPARK_HOME if not defined automagically (Brock reviewed by Xuefu)

git-svn-id: d1a7ce0349d88f980cdd7493cced2e5ee0c1640d@1658222 13f79535-47bb-0310-9956-ffa450edef68

asonipsl/hive,asonipsl/hive,asonipsl/hive,asonipsl/hive,asonipsl/hive,asonipsl/hive,asonipsl/hive,asonipsl/hive