From 3a266d33e27eed9a486e2e2a8d848f457358dc55 Mon Sep 17 00:00:00 2001
From: Wes McKinney <wes.mckinney@twosigma.com>
Date: Mon, 12 Dec 2016 17:28:32 -0500
Subject: [PATCH] Use vendored hdfs.h if not found in include/ in $HADOOP_HOME

Change-Id: I488c313b89a53d58c3da084fab052f0b8b0b6aaf
---
 cpp/src/arrow/io/CMakeLists.txt | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/cpp/src/arrow/io/CMakeLists.txt b/cpp/src/arrow/io/CMakeLists.txt
index a1892a9294a..f285180c514 100644
--- a/cpp/src/arrow/io/CMakeLists.txt
+++ b/cpp/src/arrow/io/CMakeLists.txt
@@ -56,6 +56,10 @@ if(ARROW_HDFS)
 
   if (DEFINED ENV{HADOOP_HOME})
     set(HADOOP_HOME $ENV{HADOOP_HOME})
+    if (NOT EXISTS "${HADOOP_HOME}/include/hdfs.h")
+      message(STATUS "Did not find hdfs.h in expected location, using vendored one")
+      set(HADOOP_HOME "${THIRDPARTY_DIR}/hadoop")
+    endif()
   else()
     set(HADOOP_HOME "${THIRDPARTY_DIR}/hadoop")
   endif()