Merge topic 'fix-xdmf-hdf5-parallel'

2f239599 Xdmf2: Fix HDF5 include var used in parallel check

Acked-by: Kitware Robot <kwrobot@kitware.com>
Reviewed-by: Ben Boeckel <ben.boeckel@kitware.com>
Merge-request: !1739

ThirdParty/xdmf2/vtkxdmf2/CMakeLists.txt

@@ -30,8 +30,6 @@ if (XDMF_BUILT_INVTK)
   set(XDMF_HDF5_INCLUDE_DIRS ${vtkhdf5_INCLUDE_DIRS})
 else()
   find_package(HDF5 REQUIRED)
-
-
   set(XDMF_HDF5_LIBRARIES ${HDF5_LIBRARIES})
   set(XDMF_HDF5_INCLUDE_DIRS ${HDF5_INCLUDE_DIRS})
 endif()
@@ -44,7 +42,7 @@ endif()
 # we need to do it manually ourselves
 if(NOT HDF5_IS_PARALLEL)
   include(CheckSymbolExists)
-  set(CMAKE_REQUIRED_INCLUDES ${HDF5_INCLUDE_DIRS})
+  set(CMAKE_REQUIRED_INCLUDES ${XDMF_HDF5_INCLUDE_DIRS})
   check_symbol_exists(H5_HAVE_PARALLEL hdf5.h HDF5_IS_PARALLEL)
   unset(CMAKE_REQUIRED_INCLUDES)
 endif()
@@ -54,7 +52,7 @@ endif()
 option(XDMF_BUILD_MPI "XDMF should use MPI" OFF)
 mark_as_advanced(XDMF_BUILD_MPI)
 if(HDF5_IS_PARALLEL AND NOT XDMF_BUILD_MPI)
-  message(WARNING "Xdmf2: Enabling MPI since a parallel HDF5 is being used.")
+  message(STATUS "Xdmf2: Enabling MPI since a parallel HDF5 is being used.")
   set(XDMF_BUILD_MPI ON)
 endif()
 if (XDMF_BUILD_MPI)