MAPREDUCE-4383. HadoopPipes.cc needs to include unistd.h. (Andy Isaacson via tgraves)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-0.23@1469340 13f79535-47bb-0310-9956-ffa450edef68

hadoop-mapreduce-project/CHANGES.txt

@@ -18,6 +18,9 @@ Release 0.23.8 - UNRELEASED
     MAPREDUCE-5015. Coverage fix for org.apache.hadoop.mapreduce.tools.CLI
     (Aleksey Gorshkov via tgraves)
 
+    MAPREDUCE-4383. HadoopPipes.cc needs to include unistd.h.
+    (Andy Isaacson via tgraves)
+
 Release 0.23.7 - UNRELEASED
 
   INCOMPATIBLE CHANGES

hadoop-tools/hadoop-pipes/src/main/native/pipes/impl/HadoopPipes.cc

@@ -30,6 +30,7 @@
 #include <stdlib.h>
 #include <string.h>
 #include <strings.h>
+#include <unistd.h>
 #include <sys/socket.h>
 #include <pthread.h>
 #include <iostream>