Squashed commit of the following:

    Merge changes from update_merged_S3_HDFS branch into develop.

commit d5034315aea88629929ac0c9c59ebfafd5f21a31
Merge: 9c48823 d3fdcd8
Author: Larry Knox <lrknox@hdfgroup.org>
Date:   Thu Jul 25 08:24:53 2019 -0500

    Merge branch 'develop' into update_merged_S3_HDFS

1 files changed, 70 insertions, 0 deletions

diff --git a/config/cmake/FindHDFS.cmake b/config/cmake/FindHDFS.cmake
new file mode 100644
index 0000000..e401a94
--- /dev/null
+++ b/config/cmake/FindHDFS.cmake
@@ -0,0 +1,70 @@
+
+# DerivedFrom: https://github.com/cloudera/Impala/blob/cdh5-trunk/cmake_modules/FindHDFS.cmake
+# - Find HDFS (hdfs.h and libhdfs.so)
+# This module defines
+#  Hadoop_VERSION, version string of ant if found
+#  HDFS_INCLUDE_DIR, directory containing hdfs.h
+#  HDFS_LIBRARIES, location of libhdfs.so
+#  HDFS_FOUND, whether HDFS is found.
+
+exec_program($ENV{HADOOP_HOME}/bin/hadoop ARGS version OUTPUT_VARIABLE Hadoop_VERSION
+             RETURN_VALUE Hadoop_RETURN)
+
+# currently only looking in HADOOP_HOME
+find_path(HDFS_INCLUDE_DIR hdfs.h PATHS
+  $ENV{HADOOP_HOME}/include/
+  # make sure we don't accidentally pick up a different version
+  NO_DEFAULT_PATH
+)
+
+if ("${CMAKE_SIZEOF_VOID_P}" STREQUAL "8")
+  set(arch_hint "x64")
+elseif ("$ENV{LIB}" MATCHES "(amd64|ia64)")
+  set(arch_hint "x64")
+else ()
+  set(arch_hint "x86")
+endif()
+
+message(STATUS "Architecture: ${arch_hint}")
+
+if ("${arch_hint}" STREQUAL "x64")
+  set(HDFS_LIB_PATHS $ENV{HADOOP_HOME}/lib/native)
+else ()
+  set(HDFS_LIB_PATHS $ENV{HADOOP_HOME}/lib/native)
+endif ()
+
+message(STATUS "HDFS_LIB_PATHS: ${HDFS_LIB_PATHS}")
+
+find_library(HDFS_LIB NAMES hdfs PATHS
+  ${HDFS_LIB_PATHS}
+  # make sure we don't accidentally pick up a different version
+  NO_DEFAULT_PATH
+)
+
+if (HDFS_LIB)
+  set(HDFS_FOUND TRUE)
+  set(HDFS_LIBRARIES ${HDFS_LIB})
+  set(HDFS_STATIC_LIB ${HDFS_LIB_PATHS}/${CMAKE_STATIC_LIBRARY_PREFIX}hdfs${CMAKE_STATIC_LIBRARY_SUFFIX})
+
+  add_library(hdfs_static STATIC IMPORTED)
+  set_target_properties(hdfs_static PROPERTIES IMPORTED_LOCATION ${HDFS_STATIC_LIB})
+else ()
+  set(HDFS_FOUND FALSE)
+endif ()
+
+if (HDFS_FOUND)
+  if (NOT HDFS_FIND_QUIETLY)
+    message(STATUS "${Hadoop_VERSION}")
+    message(STATUS "HDFS_INCLUDE_DIR: ${HDFS_INCLUDE_DIR}")
+    message(STATUS "HDFS_LIBRARIES: ${HDFS_LIBRARIES}")
+    message(STATUS "hdfs_static: ${HDFS_STATIC_LIB}")
+  endif ()
+else ()
+  message(FATAL_ERROR "HDFS includes and libraries NOT found."
+    "(${HDFS_INCLUDE_DIR}, ${HDFS_LIB})")
+endif ()
+
+mark_as_advanced(
+  HDFS_LIBRARIES
+  HDFS_INCLUDE_DIR
+)