+# Copyright (C) 2013-2014 CEA/DEN, EDF R&D, OPEN CASCADE
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+#
+# See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
+#
+# Author: Adrien Bruneton
+#
# HDF5 detection for Salome
+#
+# !! Please read the generic detection procedure in SalomeMacros.cmake !!
+#
+# --- HDF5 specificities ----
+# MPI root directory used for HDF5 compilation is exposed into MPI_ROOT_DIR_EXP
+#
-set(HDF5_ROOT_DIR $ENV{HDF5_ROOT_DIR} CACHE PATH "Path to Hdf5 directory")
-if(EXISTS ${HDF5_ROOT_DIR})
- set(CMAKE_INCLUDE_PATH ${HDF5_ROOT_DIR}/include)
- set(CMAKE_LIBRARY_PATH ${HDF5_ROOT_DIR}/lib)
- set(CMAKE_PROGRAM_PATH ${HDF5_ROOT_DIR}/bin)
-endif(EXISTS ${HDF5_ROOT_DIR})
-find_package(HDF5 COMPONENTS C REQUIRED)
-if (HDF5_FOUND)
- set(HDF5_DEFINITIONS "-DH5_USE_16_API ${HDF5_DEFINITIONS}" )
- if(WINDOWS)
- set(HDF5_DEFINITIONS "-D_HDF5USEDLL_ ${HDF5_DEFINITIONS}" )
- endif(WINDOWS)
-endif(HDF5_FOUND)
+SET(HDF5_ROOT_DIR $ENV{HDF5_ROOT_DIR} CACHE PATH "Path to the HDF5.")
+
+if(WIN32)
+ set(PREV_CMAKE_FIND_LIBRARY_SUFFIXES ${CMAKE_FIND_LIBRARY_SUFFIXES})
+ set(CMAKE_FIND_LIBRARY_SUFFIXES dll${CMAKE_IMPORT_LIBRARY_SUFFIX})
+ set(CMAKE_LIBRARY_PATH ${HDF5_ROOT_DIR}/dll)
+endif()
+
+SALOME_FIND_PACKAGE_AND_DETECT_CONFLICTS(HDF5 HDF5_INCLUDE_DIR 1)
+MARK_AS_ADVANCED(FORCE HDF5_INCLUDE_DIR HDF5_LIB HDF5_DIR)
+
+# Stupidly enough, CONFIG mode and MODULE mode for HDF5 do not return the same thing ...!
+SET(HDF5_INCLUDE_DIRS "${HDF5_INCLUDE_DIRS};${HDF5_INCLUDE_DIR}")
+# Same story with libraries - if in CONFIG mode, HDF5_LIBRARIES is not defined:
+IF(NOT DEFINED HDF5_LIBRARIES)
+ SET(HDF5_LIBRARIES hdf5)
+ENDIF()
+
+##
+## 7. Specific to HDF5 only:
+## Expose MPI configuration to the rest of the world
+##
+IF(HDF5_ENABLE_PARALLEL OR HDF5_IS_PARALLEL)
+ # Set only one reference boolean variable:
+ # (unfortunately what is found in /usr/share/cmake/Modules/FindHDF5.cmake
+ # and in the native HDF5-config.cmake differ!)
+ SET(HDF5_IS_PARALLEL TRUE)
+
+ # HDF5 was compiled with MPI support
+ # Unfortunately HDF5 doesn't expose its MPI configuration easily ...
+ # We sniff the properties of the HDF5 target which should also be there:
+ GET_PROPERTY(_lib_lst TARGET hdf5 PROPERTY IMPORTED_LINK_INTERFACE_LIBRARIES_NOCONFIG)
+ FOREACH(s ${_lib_lst})
+ STRING(FIND "${s}" "mpi." _res) # should cover WIN(?) and LINUX
+ IF(_res GREATER -1)
+ GET_FILENAME_COMPONENT(_tmp "${s}" PATH) # go up to levels
+ GET_FILENAME_COMPONENT(MPI_ROOT_DIR_EXP "${_tmp}" PATH)
+ BREAK()
+ ENDIF()
+ ENDFOREACH()
+ IF(NOT SalomeHDF5_FIND_QUIETLY)
+ MESSAGE(STATUS "HDF5 was compiled with MPI: ${MPI_ROOT_DIR_EXP}")
+ ENDIF()
+ENDIF()
+
+## Add definitions
+ADD_DEFINITIONS(-DH5_USE_16_API)
+IF(WIN32)
+ ADD_DEFINITIONS(-D_HDF5USEDLL_)
+ENDIF()
+
+## Ensure SALOME uses MPI if HDF5 was parallel:
+IF(HDF5_IS_PARALLEL AND NOT SALOME_USE_MPI)
+ MESSAGE(FATAL_ERROR "HDF5 is compiled with MPI, you have to set SALOME_USE_MPI to ON")
+ENDIF()
+
+if(WIN32)
+ set(CMAKE_FIND_LIBRARY_SUFFIXES ${PREV_CMAKE_FIND_LIBRARY_SUFFIXES})
+endif()
+
+IF(HDF5_FOUND)
+ SALOME_ACCUMULATE_HEADERS(HDF5_INCLUDE_DIRS)
+ SALOME_ACCUMULATE_ENVIRONMENT(LD_LIBRARY_PATH ${HDF5_LIBRARIES})
+ENDIF()
