From cec6c8875d94f883c6524b0b3f38002a439e2948 Mon Sep 17 00:00:00 2001
From: Wes McKinney <wes.mckinney@twosigma.com>
Date: Mon, 26 Feb 2018 10:59:15 -0500
Subject: [PATCH] Install libprotobuf and set PROTOBUF_HOME when using
 toolchain

Change-Id: I1b901957b362d1d78e1ab8c2658cfcf4964e0e36
---
 ci/travis_env_common.sh        | 3 +++
 ci/travis_install_toolchain.sh | 1 +
 2 files changed, 4 insertions(+)

diff --git a/ci/travis_env_common.sh b/ci/travis_env_common.sh
index 21b6e266ea6..416977c1301 100755
--- a/ci/travis_env_common.sh
+++ b/ci/travis_env_common.sh
@@ -47,6 +47,9 @@ if [ "$ARROW_TRAVIS_USE_TOOLCHAIN" == "1" ]; then
   export ARROW_BUILD_TOOLCHAIN=$CPP_TOOLCHAIN
   export BOOST_ROOT=$CPP_TOOLCHAIN
 
+  # Protocol buffers used by Apache ORC thirdparty build
+  export PROTOBUF_HOME=$CPP_TOOLCHAIN
+
   export PATH=$CPP_TOOLCHAIN/bin:$PATH
   export LD_LIBRARY_PATH=$CPP_TOOLCHAIN/lib:$LD_LIBRARY_PATH
   export TRAVIS_MAKE=ninja
diff --git a/ci/travis_install_toolchain.sh b/ci/travis_install_toolchain.sh
index b5eb137ba91..31076b2e736 100755
--- a/ci/travis_install_toolchain.sh
+++ b/ci/travis_install_toolchain.sh
@@ -26,6 +26,7 @@ if [ ! -e $CPP_TOOLCHAIN ]; then
     conda create -y -q -p $CPP_TOOLCHAIN python=2.7 \
         nomkl \
         boost-cpp \
+        libprotobuf \
         rapidjson \
         flatbuffers \
         gflags \