diff --git a/ThirdParty/hdf5/vtkhdf5/config/cmake/HDFMacros.cmake b/ThirdParty/hdf5/vtkhdf5/config/cmake/HDFMacros.cmake
index 11ed4de0144af365e1b32f0ead67d047a1fa55be..dc3ec5dbbb5cd9392d0bc95c8d5869cc29648a7c 100644
--- a/ThirdParty/hdf5/vtkhdf5/config/cmake/HDFMacros.cmake
+++ b/ThirdParty/hdf5/vtkhdf5/config/cmake/HDFMacros.cmake
@@ -77,29 +77,9 @@ ENDMACRO (INSTALL_PROGRAM_PDB)
 MACRO (HDF_SET_LIB_OPTIONS libtarget _libname libtype)
   set (libname "${_libname}${VTK_CUSTOM_LIBRARY_SUFFIX}")
   # message (STATUS "${libname} libtype: ${libtype}")
-  if (${libtype} MATCHES "SHARED")
-    if (WIN32)
-      set (LIB_RELEASE_NAME "${libname}")
-      set (LIB_DEBUG_NAME "${libname}")
-    else (WIN32)
-      set (LIB_RELEASE_NAME "${libname}")
-      set (LIB_DEBUG_NAME "${libname}")
-    endif (WIN32)
-  else (${libtype} MATCHES "SHARED")
-    if (WIN32)
-      set (LIB_RELEASE_NAME "lib${libname}")
-      set (LIB_DEBUG_NAME "lib${libname}")
-    else (WIN32)
-      # if the generator supports configuration types or if the CMAKE_BUILD_TYPE has a value
-      if (CMAKE_CONFIGURATION_TYPES OR CMAKE_BUILD_TYPE)
-        set (LIB_RELEASE_NAME "${libname}")
-        set (LIB_DEBUG_NAME "${libname}")
-      else (CMAKE_CONFIGURATION_TYPES OR CMAKE_BUILD_TYPE)
-        set (LIB_RELEASE_NAME "lib${libname}")
-        set (LIB_DEBUG_NAME "lib${libname}")
-      endif (CMAKE_CONFIGURATION_TYPES OR CMAKE_BUILD_TYPE)
-    endif (WIN32)
-  endif (${libtype} MATCHES "SHARED")
+  # We don't mangle library names based on build type or platform.
+  set (LIB_RELEASE_NAME "${libname}")
+  set (LIB_DEBUG_NAME "${libname}")
   
   set_target_properties (${libtarget}
       PROPERTIES
diff --git a/ThirdParty/hdf5/vtkhdf5/src/vtk_libhdf5_mangle.h b/ThirdParty/hdf5/vtkhdf5/src/vtk_libhdf5_mangle.h
index f2b1d605402e0b8982708a1182fedb2a5ea6f8d2..06ec32e3af5d54c0151f7cca182509869146d196 100644
--- a/ThirdParty/hdf5/vtkhdf5/src/vtk_libhdf5_mangle.h
+++ b/ThirdParty/hdf5/vtkhdf5/src/vtk_libhdf5_mangle.h
@@ -10,11 +10,7 @@ VTK.
 
 The following command was used to obtain the symbol list:
 
-nm libhdf5_debug.dylib | grep " [TR] " | awk '{print "#define "$3" vtk_"$3}'
-
-Then on Linux I did the following to add symbols:
-
-nm libhdf5.so | grep " [ABCDGNRSTVW] " | awk '{print "#define "$3" vtk__"$3}' >> ~/src/VTK/ThirdParty/hdf5/vtkhdf5/src/vtk_libhdf5_mangle.h
+nm libhdf5.so | grep " [ABCDGNRSTVW] " | awk '{print "#define "$3" vtk__"$3}' > ~/src/VTK/ThirdParty/hdf5/vtkhdf5/src/vtk_libhdf5_mangle.h
 
 */
 
@@ -2465,6 +2461,9 @@ nm libhdf5.so | grep " [ABCDGNRSTVW] " | awk '{print "#define "$3" vtk__"$3}' >>
 #define HDrand vtk__HDrand
 #define HDsrand vtk__HDsrand
 #define HDstrtoll vtk__HDstrtoll
+#define H5MM_calloc vtk__H5MM_calloc
+#define H5MM_malloc vtk__H5MM_malloc
+
 #if !defined(_fini) && !defined(_init)
   #define _fini vtk___fini
   #define _init vtk___init