CMake: Put FindHDF5 hints back in place

diff --git a/cmake/modules/FindHDF5.cmake b/cmake/modules/FindHDF5.cmake
index ec0bd63deef4d201a0c99b7bc7a8a6b9936f589e..6438e425927217e46b1762ef82139c9edab014e3 100644 (file)
--- a/cmake/modules/FindHDF5.cmake
+++ b/cmake/modules/FindHDF5.cmake
@@ -28,7 +28,17 @@ SET_IF_EMPTY(HDF5_DIR "$ENV{HDF5_DIR}")
 
 # temporarily disable ${CMAKE_SOURCE_DIR}/cmake/modules for module lookup
 LIST(REMOVE_ITEM CMAKE_MODULE_PATH ${CMAKE_SOURCE_DIR}/cmake/modules/)
+
+IF(NOT "${HDF5_DIR}" STREQUAL "")
+  SET(HDF5_ROOT "${HDF5_DIR}")
+ENDIF()
+
+IF(DEAL_II_WITH_MPI)
+  SET(HDF5_PREFER_PARALLEL TRUE)
+ENDIF()
+
 FIND_PACKAGE(HDF5)
+
 LIST(APPEND CMAKE_MODULE_PATH ${CMAKE_SOURCE_DIR}/cmake/modules/)
 
 IF(HDF5_FOUND)