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CMake/Modules/FindHDF5.cmake

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#.rst:
# FindHDF5
# --------
#
# Find HDF5, a library for reading and writing self describing array data.
#
#
#
# This module invokes the HDF5 wrapper compiler that should be installed
# alongside HDF5. Depending upon the HDF5 Configuration, the wrapper
# compiler is called either h5cc or h5pcc. If this succeeds, the module
# will then call the compiler with the -show argument to see what flags
# are used when compiling an HDF5 client application.
#
# The module will optionally accept the COMPONENTS argument. If no
# COMPONENTS are specified, then the find module will default to finding
# only the HDF5 C library. If one or more COMPONENTS are specified, the
# module will attempt to find the language bindings for the specified
# components. The only valid components are C, CXX, Fortran, HL, and
# Fortran_HL. If the COMPONENTS argument is not given, the module will
# attempt to find only the C bindings.
#
# On UNIX systems, this module will read the variable
# HDF5_USE_STATIC_LIBRARIES to determine whether or not to prefer a
# static link to a dynamic link for HDF5 and all of it's dependencies.
# To use this feature, make sure that the HDF5_USE_STATIC_LIBRARIES
# variable is set before the call to find_package.
#
# To provide the module with a hint about where to find your HDF5
# installation, you can set the environment variable HDF5_ROOT. The
# Find module will then look in this path when searching for HDF5
# executables, paths, and libraries.
#
# Both the serial and parallel HDF5 wrappers are considered and the first
# directory to contain either one will be used. In the event that both appear
# in the same directory the serial version is preferentially selected. This
# behavior can be reversed by setting the variable HDF5_PREFER_PARALLEL to
# true.
#
# In addition to finding the includes and libraries required to compile
# an HDF5 client application, this module also makes an effort to find
# tools that come with the HDF5 distribution that may be useful for
# regression testing.
#
# This module will define the following variables:
#
# ::
#
# HDF5_INCLUDE_DIRS - Location of the hdf5 includes
# HDF5_INCLUDE_DIR - Location of the hdf5 includes (deprecated)
# HDF5_DEFINITIONS - Required compiler definitions for HDF5
# HDF5_C_LIBRARIES - Required libraries for the HDF5 C bindings.
# HDF5_CXX_LIBRARIES - Required libraries for the HDF5 C++ bindings
# HDF5_Fortran_LIBRARIES - Required libraries for the HDF5 Fortran bindings
# HDF5_HL_LIBRARIES - Required libraries for the HDF5 high level API
# HDF5_Fortran_HL_LIBRARIES - Required libraries for the high level Fortran
# bindings.
# HDF5_LIBRARIES - Required libraries for all requested bindings
# HDF5_FOUND - true if HDF5 was found on the system
# HDF5_VERSION - HDF5 version in format Major.Minor.Release
# HDF5_LIBRARY_DIRS - the full set of library directories
# HDF5_IS_PARALLEL - Whether or not HDF5 was found with parallel IO support
# HDF5_C_COMPILER_EXECUTABLE - the path to the HDF5 C wrapper compiler
# HDF5_CXX_COMPILER_EXECUTABLE - the path to the HDF5 C++ wrapper compiler
# HDF5_Fortran_COMPILER_EXECUTABLE - the path to the HDF5 Fortran wrapper compiler
# HDF5_DIFF_EXECUTABLE - the path to the HDF5 dataset comparison tool
#=============================================================================
# Copyright 2015 Axel Huebl, Helmholtz-Zentrum Dresden - Rossendorf
# Copyright 2009 Kitware, Inc.
#
# Distributed under the OSI-approved BSD License (the "License");
# see accompanying file Copyright.txt for details.
#
# This software is distributed WITHOUT ANY WARRANTY; without even the
# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# See the License for more information.
#=============================================================================
# (To distribute this file outside of CMake, substitute the full
# License text for the above reference.)
# This module is maintained by Will Dicharry <wdicharry@stellarscience.com>.
include(${CMAKE_CURRENT_LIST_DIR}/SelectLibraryConfigurations.cmake)
include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake)
# List of the valid HDF5 components
set( HDF5_VALID_COMPONENTS
C
CXX
Fortran
HL
Fortran_HL
)
# Validate the list of find components.
if( NOT HDF5_FIND_COMPONENTS )
set( HDF5_LANGUAGE_BINDINGS "C" )
else()
# add the extra specified components, ensuring that they are valid.
foreach( component ${HDF5_FIND_COMPONENTS} )
list( FIND HDF5_VALID_COMPONENTS ${component} component_location )
if( ${component_location} EQUAL -1 )
message( FATAL_ERROR
"\"${component}\" is not a valid HDF5 component." )
else()
list( APPEND HDF5_LANGUAGE_BINDINGS ${component} )
endif()
endforeach()
endif()
# Determine whether to search for serial or parallel executable first
if(HDF5_PREFER_PARALLEL)
set(HDF5_C_COMPILER_NAMES h5pcc h5cc)
set(HDF5_CXX_COMPILER_NAMES h5pc++ h5c++)
set(HDF5_Fortran_COMPILER_NAMES h5pfc h5fc)
else()
set(HDF5_C_COMPILER_NAMES h5cc h5pcc)
set(HDF5_CXX_COMPILER_NAMES h5c++ h5pc++)
set(HDF5_Fortran_COMPILER_NAMES h5fc h5pfc)
endif()
# We may have picked up some duplicates in various lists during the above
# process for the language bindings (both the C and C++ bindings depend on
# libz for example). Remove the duplicates. It appears that the default
# CMake behavior is to remove duplicates from the end of a list. However,
# for link lines, this is incorrect since unresolved symbols are searched
# for down the link line. Therefore, we reverse the list, remove the
# duplicates, and then reverse it again to get the duplicates removed from
# the beginning.
macro(_HDF5_remove_duplicates_from_beginning _list_name)
if(${_list_name})
list(REVERSE ${_list_name})
list(REMOVE_DUPLICATES ${_list_name})
list(REVERSE ${_list_name})
endif()
endmacro()
# Test first if the current compilers automatically wrap HDF5
function(_HDF5_test_regular_compiler_C success version)
set(scratch_directory
${CMAKE_CURRENT_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/hdf5)
if(NOT ${success} OR
NOT EXISTS ${scratch_directory}/compiler_has_h5_c)
set(test_file ${scratch_directory}/cmake_hdf5_test.c)
file(WRITE ${test_file}
"#include <hdf5.h>\n"
"#include <hdf5_hl.h>\n"
"int main(void) {\n"
" char const* info_ver = \"INFO\" \":\" H5_VERSION;\n"
" hid_t fid;\n"
" fid = H5Fcreate(\"foo.h5\",H5F_ACC_TRUNC,H5P_DEFAULT,H5P_DEFAULT);\n"
" return 0;\n"
"}")
try_compile(${success} ${scratch_directory} ${test_file}
COPY_FILE ${scratch_directory}/compiler_has_h5_c
)
endif()
if(${success})
file(STRINGS ${scratch_directory}/compiler_has_h5_c INFO_VER
REGEX "^INFO:([0-9]+\\.[0-9]+\\.[0-9]+)(-patch([0-9]+))?"
)
string(REGEX MATCH "^INFO:([0-9]+\\.[0-9]+\\.[0-9]+)(-patch([0-9]+))?"
INFO_VER "${INFO_VER}"
)
set(${version} ${CMAKE_MATCH_1})
if(CMAKE_MATCH_3)
set(${version} ${HDF5_CXX_VERSION}.${CMAKE_MATCH_3})
endif()
set(${version} ${${version}} PARENT_SCOPE)
endif()
endfunction()
function(_HDF5_test_regular_compiler_CXX success version)
set(scratch_directory ${CMAKE_CURRENT_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/hdf5)
if(NOT ${success} OR
NOT EXISTS ${scratch_directory}/compiler_has_h5_cxx)
set(test_file ${scratch_directory}/cmake_hdf5_test.cxx)
file(WRITE ${test_file}
"#include <H5Cpp.h>\n"
"#ifndef H5_NO_NAMESPACE\n"
"using namespace H5;\n"
"#endif\n"
"int main(int argc, char **argv) {\n"
" char const* info_ver = \"INFO\" \":\" H5_VERSION;\n"
" H5File file(\"foo.h5\", H5F_ACC_TRUNC);\n"
" return 0;\n"
"}")
try_compile(${success} ${scratch_directory} ${test_file}
COPY_FILE ${scratch_directory}/compiler_has_h5_cxx
)
endif()
if(${success})
file(STRINGS ${scratch_directory}/compiler_has_h5_cxx INFO_VER
REGEX "^INFO:([0-9]+\\.[0-9]+\\.[0-9]+)(-patch([0-9]+))?"
)
string(REGEX MATCH "^INFO:([0-9]+\\.[0-9]+\\.[0-9]+)(-patch([0-9]+))?"
INFO_VER "${INFO_VER}"
)
set(${version} ${CMAKE_MATCH_1})
if(CMAKE_MATCH_3)
set(${version} ${HDF5_CXX_VERSION}.${CMAKE_MATCH_3})
endif()
set(${version} ${${version}} PARENT_SCOPE)
endif()
endfunction()
function(_HDF5_test_regular_compiler_Fortran success)
if(NOT ${success})
set(scratch_directory
${CMAKE_CURRENT_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/hdf5)
set(test_file ${scratch_directory}/cmake_hdf5_test.f90)
file(WRITE ${test_file}
"program hdf5_hello\n"
" use hdf5\n"
" use h5lt\n"
" use h5ds\n"
" integer error\n"
" call h5open_f(error)\n"
" call h5close_f(error)\n"
"end\n")
try_compile(${success} ${scratch_directory} ${test_file})
endif()
endfunction()
# Invoke the HDF5 wrapper compiler. The compiler return value is stored to the
# return_value argument, the text output is stored to the output variable.
macro( _HDF5_invoke_compiler language output return_value version)
set(${version})
exec_program( ${HDF5_${language}_COMPILER_EXECUTABLE}
ARGS -show
OUTPUT_VARIABLE ${output}
RETURN_VALUE ${return_value}
)
if(NOT ${${return_value}} EQUAL 0)
message(STATUS
"Unable to determine HDF5 ${language} flags from HDF5 wrapper.")
endif()
exec_program( ${HDF5_${language}_COMPILER_EXECUTABLE}
ARGS -showconfig
OUTPUT_VARIABLE config_output
RETURN_VALUE config_return
)
if(NOT ${return_value} EQUAL 0)
message( STATUS
"Unable to determine HDF5 ${language} version from HDF5 wrapper.")
endif()
string(REGEX MATCH "HDF5 Version: ([a-zA-Z0-9\\.\\-]*)" version_match "${config_output}")
if(version_match)
string(REPLACE "HDF5 Version: " "" ${version} "${version_match}")
string(REPLACE "-patch" "." ${version} "${${version}}")
endif()
endmacro()
# Parse a compile line for definitions, includes, library paths, and libraries.
macro( _HDF5_parse_compile_line
compile_line_var
include_paths
definitions
library_paths
libraries )
# Match the include paths
string( REGEX MATCHALL "-I([^\" ]+)" include_path_flags
"${${compile_line_var}}"
)
foreach( IPATH ${include_path_flags} )
string( REGEX REPLACE "^-I" "" IPATH ${IPATH} )
string( REPLACE "//" "/" IPATH ${IPATH} )
list( APPEND ${include_paths} ${IPATH} )
endforeach()
# Match the definitions
string( REGEX MATCHALL "-D[^ ]*" definition_flags "${${compile_line_var}}" )
foreach( DEF ${definition_flags} )
list( APPEND ${definitions} ${DEF} )
endforeach()
# Match the library paths
string( REGEX MATCHALL "-L([^\" ]+|\"[^\"]+\")" library_path_flags
"${${compile_line_var}}"
)
foreach( LPATH ${library_path_flags} )
string( REGEX REPLACE "^-L" "" LPATH ${LPATH} )
string( REPLACE "//" "/" LPATH ${LPATH} )
list( APPEND ${library_paths} ${LPATH} )
endforeach()
# now search for the library names specified in the compile line (match -l...)
# match only -l's preceded by a space or comma
# this is to exclude directory names like xxx-linux/
string( REGEX MATCHALL "[, ]-l([^\", ]+)" library_name_flags
"${${compile_line_var}}" )
# strip the -l from all of the library flags and add to the search list
foreach( LIB ${library_name_flags} )
string( REGEX REPLACE "^[, ]-l" "" LIB ${LIB} )
list( APPEND ${libraries} ${LIB} )
endforeach()
endmacro()
# Try to find HDF5 using an installed hdf5-config.cmake
if( NOT HDF5_FOUND )
find_package( HDF5 QUIET NO_MODULE )
if( HDF5_FOUND )
set( HDF5_INCLUDE_DIRS ${HDF5_INCLUDE_DIR} )
set( HDF5_LIBRARIES )
set( HDF5_C_TARGET hdf5 )
set( HDF5_CXX_TARGET hdf5_cpp )
set( HDF5_HL_TARGET hdf5_hl )
set( HDF5_Fortran_TARGET hdf5_fortran )
set( HDF5_Fortran_HL_TARGET hdf5_hl_fortran )
foreach( _component ${HDF5_LANGUAGE_BINDINGS} )
list( FIND HDF5_VALID_COMPONENTS ${_component} _component_location )
get_target_property( _comp_location ${HDF5_${_component}_TARGET} LOCATION )
if( _comp_location )
set( HDF5_${_component}_LIBRARY ${_comp_location} CACHE PATH
"HDF5 ${_component} library" )
mark_as_advanced( HDF5_${_component}_LIBRARY )
list( APPEND HDF5_LIBRARIES ${HDF5_${_component}_LIBRARY} )
endif()
endforeach()
endif()
endif()
set(_HDF5_NEED_TO_SEARCH False)
set(HDF5_COMPILER_NO_INTERROGATE True)
get_property(__langs GLOBAL PROPERTY ENABLED_LANGUAGES)
if(__langs)
# Only search for languages we've enabled
foreach(__lang IN LISTS __langs)
# First check to see if our regular compiler is one of wrappers
if(__lang STREQUAL "C")
_HDF5_test_regular_compiler_C(
HDF5_${__lang}_COMPILER_NO_INTERROGATE
HDF5_${__lang}_VERSION)
elseif(__lang STREQUAL "CXX")
_HDF5_test_regular_compiler_CXX(
HDF5_${__lang}_COMPILER_NO_INTERROGATE
HDF5_${__lang}_VERSION)
elseif(__lang STREQUAL "Fortran")
_HDF5_test_regular_compiler_Fortran(
HDF5_${__lang}_COMPILER_NO_INTERROGATE)
else()
continue()
endif()
if(HDF5_${__lang}_COMPILER_NO_INTERROGATE)
message(STATUS "HDF5: Using hdf5 compiler wrapper for all ${__lang} compiling")
set(HDF5_${__lang}_FOUND True)
set(HDF5_${__lang}_COMPILER_EXECUTABLE_NO_INTERROGATE "${CMAKE_${__lang}_COMPILER}" CACHE FILEPATH "HDF5 ${__lang} compiler wrapper")
set(HDF5_${__lang}_DEFINITIONS)
set(HDF5_${__lang}_INCLUDE_DIRS)
set(HDF5_${__lang}_LIBRARIES)
mark_as_advanced(HDF5_${__lang}_COMPILER_EXECUTABLE_NO_INTERROGATE)
mark_as_advanced(HDF5_${__lang}_DEFINITIONS)
mark_as_advanced(HDF5_${__lang}_INCLUDE_DIRS)
mark_as_advanced(HDF5_${__lang}_LIBRARIES)
else()
set(HDF5_COMPILER_NO_INTERROGATE False)
# If this language isn't using the wrapper, then try to seed the
# search options with the wrapper
find_program(HDF5_${__lang}_COMPILER_EXECUTABLE
NAMES ${HDF5_${__lang}_COMPILER_NAMES} NAMES_PER_DIR
HINTS ENV HDF5_ROOT
PATH_SUFFIXES bin Bin
DOC "HDF5 ${__lang} Wrapper compiler. Used only to detect HDF5 compile flags."
)
mark_as_advanced( HDF5_${__lang}_COMPILER_EXECUTABLE )
unset(HDF5_${__lang}_COMPILER_NAMES)
if(HDF5_${__lang}_COMPILER_EXECUTABLE)
_HDF5_invoke_compiler(${__lang} HDF5_${__lang}_COMPILE_LINE
HDF5_${__lang}_RETURN_VALUE HDF5_${__lang}_VERSION)
if(HDF5_${__lang}_RETURN_VALUE EQUAL 0)
message(STATUS "HDF5: Using hdf5 compiler wrapper to determine ${__lang} configuration")
_HDF5_parse_compile_line( HDF5_${__lang}_COMPILE_LINE
HDF5_${__lang}_INCLUDE_DIRS
HDF5_${__lang}_DEFINITIONS
HDF5_${__lang}_LIBRARY_DIRS
HDF5_${__lang}_LIBRARY_NAMES
)
set(HDF5_${__lang}_LIBRARIES)
foreach(L IN LISTS HDF5_${__lang}_LIBRARY_NAMES)
find_library(HDF5_${__lang}_LIBRARY_${L} ${L} ${HDF5_${__lang}_LIBRARY_DIRS})
if(HDF5_${__lang}_LIBRARY_${L})
list(APPEND HDF5_${__lang}_LIBRARIES ${HDF5_${__lang}_LIBRARY_${L}})
else()
list(APPEND HDF5_${__lang}_LIBRARIES ${L})
endif()
endforeach()
set(HDF5_${__lang}_FOUND True)
mark_as_advanced(HDF5_${__lang}_DEFINITIONS)
mark_as_advanced(HDF5_${__lang}_INCLUDE_DIRS)
mark_as_advanced(HDF5_${__lang}_LIBRARIES)
_HDF5_remove_duplicates_from_beginning(HDF5_${__lang}_DEFINITIONS)
_HDF5_remove_duplicates_from_beginning(HDF5_${__lang}_INCLUDE_DIRS)
_HDF5_remove_duplicates_from_beginning(HDF5_${__lang}_LIBRARIES)
else()
set(_HDF5_NEED_TO_SEARCH True)
endif()
else()
set(_HDF5_NEED_TO_SEARCH True)
endif()
endif()
if(HDF5_${__lang}_VERSION)
if(NOT HDF5_VERSION)
set(HDF5_VERSION ${HDF5_${__lang}_VERSION})
elseif(NOT HDF5_VERSION VERSION_EQUAL HDF5_${__lang}_VERSION)
message(WARNING "HDF5 Version found for language ${__lang}, ${HDF5_${__lang}_VERSION} is different than previously found version ${HDF5_VERSION}")
endif()
endif()
endforeach()
endif()
if(HDF5_COMPILER_NO_INTERROGATE)
# No arguments necessary, all languages can use the compiler wrappers
set(HDF5_FOUND True)
set(HDF5_METHOD "Included by compiler wrappers")
set(HDF5_REQUIRED_VARS HDF5_METHOD)
elseif(NOT _HDF5_NEED_TO_SEARCH)
# Compiler wrappers aren't being used by the build but were found and used
# to determine necessary include and library flags
set(HDF5_INCLUDE_DIRS)
set(HDF5_LIBRARIES)
foreach(__lang IN LISTS __langs)
if(HDF5_${__lang}_FOUND)
if(NOT HDF5_${__lang}_COMPILER_NO_INTERROGATE)
list(APPEND HDF5_DEFINITIONS ${HDF5_${__lang}_DEFINITIONS})
list(APPEND HDF5_INCLUDE_DIRS ${HDF5_${__lang}_INCLUDE_DIRS})
list(APPEND HDF5_LIBRARIES ${HDF5_${__lang}_LIBRARIES})
endif()
endif()
endforeach()
_HDF5_remove_duplicates_from_beginning(HDF5_DEFINITIONS)
_HDF5_remove_duplicates_from_beginning(HDF5_INCLUDE_DIRS)
_HDF5_remove_duplicates_from_beginning(HDF5_LIBRARIES)
set(HDF5_FOUND True)
set(HDF5_REQUIRED_VARS HDF5_LIBRARIES)
endif()
find_program( HDF5_DIFF_EXECUTABLE
NAMES h5diff
HINTS ENV HDF5_ROOT
PATH_SUFFIXES bin Bin
DOC "HDF5 file differencing tool." )
mark_as_advanced( HDF5_DIFF_EXECUTABLE )
if( NOT HDF5_FOUND )
# seed the initial lists of libraries to find with items we know we need
set(HDF5_C_LIBRARY_NAMES hdf5)
set(HDF5_C_HL_LIBRARY_NAMES hdf5_hl ${HDF5_C_LIBRARY_NAMES_INIT})
set(HDF5_CXX_LIBRARY_NAMES hdf5_cpp ${HDF5_C_LIBRARY_NAMES_INIT})
set(HDF5_CXX_HL_LIBRARY_NAMES hdf5_hl_cpp ${HDF5_C_HL_LIBRARY_NAMES_INIT} ${HDF5_CXX_LIBRARY_NAMES_INIT})
set(HDF5_Fortran_LIBRARY_NAMES hdf5_fortran ${HDF5_C_LIBRARY_NAMES_INIT})
set(HDF5_Fortran_HL_LIBRARY_NAMES hdf5hl_fortran ${HDF5_C_HL_LIBRARY_NAMES_INIT} ${HDF5_Fortran_LIBRARY_NAMES_INIT})
foreach( LANGUAGE ${HDF5_LANGUAGE_BINDINGS} )
# find the HDF5 include directories
if(LANGUAGE STREQUAL "Fortran")
set(HDF5_INCLUDE_FILENAME hdf5.mod)
elseif(LANGUAGE STREQUAL "CXX")
set(HDF5_INCLUDE_FILENAME H5Cpp.h)
else()
set(HDF5_INCLUDE_FILENAME hdf5.h)
endif()
find_path(HDF5_${LANGUAGE}_INCLUDE_DIR ${HDF5_INCLUDE_FILENAME}
HINTS $ENV{HDF5_ROOT}
PATHS $ENV{HOME}/.local/include
PATH_SUFFIXES include Include
)
mark_as_advanced(HDF5_${LANGUAGE}_INCLUDE_DIR)
list( APPEND HDF5_INCLUDE_DIRS ${HDF5_${LANGUAGE}_INCLUDE_DIR} )
# find the HDF5 libraries
foreach( LIB ${HDF5_${LANGUAGE}_LIBRARY_NAMES} )
if( UNIX AND HDF5_USE_STATIC_LIBRARIES )
# According to bug 1643 on the CMake bug tracker, this is the
# preferred method for searching for a static library.
# See https://cmake.org/Bug/view.php?id=1643. We search
# first for the full static library name, but fall back to a
# generic search on the name if the static search fails.
set( THIS_LIBRARY_SEARCH_DEBUG lib${LIB}d.a lib${LIB}_debug.a ${LIB}d ${LIB}_debug )
set( THIS_LIBRARY_SEARCH_RELEASE lib${LIB}.a ${LIB} )
else()
set( THIS_LIBRARY_SEARCH_DEBUG ${LIB}d ${LIB}_debug )
set( THIS_LIBRARY_SEARCH_RELEASE ${LIB} )
endif()
find_library( HDF5_${LIB}_LIBRARY_DEBUG
NAMES ${THIS_LIBRARY_SEARCH_DEBUG}
HINTS ${HDF5_${LANGUAGE}_LIBRARY_DIRS}
ENV HDF5_ROOT
PATH_SUFFIXES lib Lib )
find_library( HDF5_${LIB}_LIBRARY_RELEASE
NAMES ${THIS_LIBRARY_SEARCH_RELEASE}
HINTS ${HDF5_${LANGUAGE}_LIBRARY_DIRS}
ENV HDF5_ROOT
PATH_SUFFIXES lib Lib )
select_library_configurations( HDF5_${LIB} )
list(APPEND HDF5_${LANGUAGE}_LIBRARIES ${HDF5_${LIB}_LIBRARY})
endforeach()
list( APPEND HDF5_LIBRARY_DIRS ${HDF5_${LANGUAGE}_LIBRARY_DIRS} )
# Append the libraries for this language binding to the list of all
# required libraries.
list(APPEND HDF5_LIBRARIES ${HDF5_${LANGUAGE}_LIBRARIES})
endforeach()
_HDF5_remove_duplicates_from_beginning(HDF5_INCLUDE_DIRS)
_HDF5_remove_duplicates_from_beginning(HDF5_LIBRARY_DIRS)
# If the HDF5 include directory was found, open H5pubconf.h to determine if
# HDF5 was compiled with parallel IO support
set( HDF5_IS_PARALLEL FALSE )
set( HDF5_VERSION "" )
foreach( _dir IN LISTS HDF5_INCLUDE_DIRS )
foreach(_hdr "${_dir}/H5pubconf.h" "${_dir}/H5pubconf-64.h" "${_dir}/H5pubconf-32.h")
if( EXISTS "${_hdr}" )
file( STRINGS "${_hdr}"
HDF5_HAVE_PARALLEL_DEFINE
REGEX "HAVE_PARALLEL 1" )
if( HDF5_HAVE_PARALLEL_DEFINE )
set( HDF5_IS_PARALLEL TRUE )
endif()
unset(HDF5_HAVE_PARALLEL_DEFINE)
file( STRINGS "${_hdr}"
HDF5_VERSION_DEFINE
REGEX "^[ \t]*#[ \t]*define[ \t]+H5_VERSION[ \t]+" )
if( "${HDF5_VERSION_DEFINE}" MATCHES
"H5_VERSION[ \t]+\"([0-9]+\\.[0-9]+\\.[0-9]+)(-patch([0-9]+))?\"" )
set( HDF5_VERSION "${CMAKE_MATCH_1}" )
if( CMAKE_MATCH_3 )
set( HDF5_VERSION ${HDF5_VERSION}.${CMAKE_MATCH_3})
endif()
endif()
unset(HDF5_VERSION_DEFINE)
endif()
endforeach()
endforeach()
set( HDF5_IS_PARALLEL ${HDF5_IS_PARALLEL} CACHE BOOL
"HDF5 library compiled with parallel IO support" )
mark_as_advanced( HDF5_IS_PARALLEL )
# For backwards compatibility we set HDF5_INCLUDE_DIR to the value of
# HDF5_INCLUDE_DIRS
if( HDF5_INCLUDE_DIRS )
set( HDF5_INCLUDE_DIR "${HDF5_INCLUDE_DIRS}" )
endif()
set(HDF5_REQUIRED_VARS HDF5_LIBRARIES HDF5_INCLUDE_DIRS)
endif()
find_package_handle_standard_args(HDF5
REQUIRED_VARS ${HDF5_REQUIRED_VARS}
VERSION_VAR HDF5_VERSION
)
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