Merge pull request #478 from WardF/fix-472.wif

Address missing compile definition

Author: WardF

CMakeLists.txt

@@ -700,6 +700,7 @@ IF(NOT DISABLE_ZSTANDARD_PLUGIN)
       MESSAGE(STATUS "HDF5_PLUGIN_PATH: $ENV{HDF5_PLUGIN_PATH}")
       SET(NF_HAVE_ZSTD TRUE)
       SET(NF_HDF5_PLUGIN_PATH "(HDF5_PLUGIN_PATH: $ENV{HDF5_PLUGIN_PATH}")
+      add_compile_definitions(ENABLE_ZSTD)
     ENDIF()
   ENDIF(NC_HAVE_ZSTD)
 ELSE(NOT DISABLE_ZSTANDARD_PLUGIN)