HDFS-9025. Fix compilation issues on arch linux. Contributed by Owen O'Malley.

hadoop-hdfs-project/hadoop-hdfs-client/pom.xml

@@ -190,6 +190,16 @@ http://maven.apache.org/xsd/maven-4.0.0.xsd">
             <groupId>org.apache.maven.plugins</groupId>
             <artifactId>maven-antrun-plugin</artifactId>
             <executions>
+              <execution>
+                <id>debug</id>
+                <phase>compile</phase>
+                <goals><goal>run</goal></goals>
+                <configuration>
+                  <target>
+                    <echo>[PROTOC] ${env.HADOOP_PROTOC_PATH}</echo>
+                  </target>
+                </configuration>
+              </execution>
               <execution>
                 <id>make</id>
                 <phase>compile</phase>

hadoop-hdfs-project/hadoop-hdfs-client/src/main/native/libhdfspp/lib/proto/CMakeLists.txt

@@ -1,5 +1,5 @@
-set(CLIENT_PROTO_DIR ${CMAKE_SOURCE_DIR}/../proto)
-set(COMMON_PROTO_DIR ${CMAKE_SOURCE_DIR}/../../../../../hadoop-common-project/hadoop-common/src/main/proto)
+set(CLIENT_PROTO_DIR ${CMAKE_CURRENT_LIST_DIR}/../../../../proto)
+set(COMMON_PROTO_DIR ${CMAKE_CURRENT_LIST_DIR}/../../../../../../../../hadoop-common-project/hadoop-common/src/main/proto)
 set(PROTOBUF_IMPORT_DIRS ${CLIENT_PROTO_DIR} ${COMMON_PROTO_DIR})
 
 protobuf_generate_cpp(PROTO_SRCS PROTO_HDRS

hadoop-hdfs-project/hadoop-hdfs-client/src/main/native/libhdfspp/lib/proto/protoc_gen_hrpc.cc

@@ -25,6 +25,8 @@
 #include <google/protobuf/io/zero_copy_stream.h>
 #include <google/protobuf/stubs/common.h>
 
+#include <memory>
+
 using ::google::protobuf::FileDescriptor;
 using ::google::protobuf::MethodDescriptor;
 using ::google::protobuf::ServiceDescriptor;

hadoop-hdfs-project/hadoop-hdfs-client/src/main/native/libhdfspp/tests/CMakeLists.txt

@@ -19,13 +19,13 @@
 add_library(test_common OBJECT mock_connection.cc)
 
 add_executable(remote_block_reader_test remote_block_reader_test.cc $<TARGET_OBJECTS:test_common>)
-target_link_libraries(remote_block_reader_test reader proto common ${PROTOBUF_LIBRARIES} ${OPENSSL_LIBRARIES} gmock_main)
+target_link_libraries(remote_block_reader_test reader proto common ${PROTOBUF_LIBRARIES} ${OPENSSL_LIBRARIES} gmock_main ${CMAKE_THREAD_LIBS_INIT})
 add_test(remote_block_reader remote_block_reader_test)
 
 add_executable(sasl_digest_md5_test sasl_digest_md5_test.cc)
-target_link_libraries(sasl_digest_md5_test common ${OPENSSL_LIBRARIES} gmock_main)
+target_link_libraries(sasl_digest_md5_test common ${OPENSSL_LIBRARIES} gmock_main ${CMAKE_THREAD_LIBS_INIT})
 add_test(sasl_digest_md5 sasl_digest_md5_test)
 
 add_executable(inputstream_test inputstream_test.cc)
-target_link_libraries(inputstream_test fs rpc reader proto common ${PROTOBUF_LIBRARIES} ${OPENSSL_LIBRARIES} gmock_main)
+target_link_libraries(inputstream_test fs rpc reader proto common ${PROTOBUF_LIBRARIES} ${OPENSSL_LIBRARIES} gmock_main ${CMAKE_THREAD_LIBS_INIT})
 add_test(inputstream inputstream_test)