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ce28737c93
This puts the new search behaviour for included files in action, i.e. now when a file from Modules/ include()s another file, it also gets the one from Modules/ included, i.e. the one it expects. Alex
329 lines
13 KiB
CMake
329 lines
13 KiB
CMake
# - Find HDF5, a library for reading and writing self describing array data.
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#
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# This module invokes the HDF5 wrapper compiler that should be installed
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# alongside HDF5. Depending upon the HDF5 Configuration, the wrapper compiler
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# is called either h5cc or h5pcc. If this succeeds, the module will then call
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# the compiler with the -show argument to see what flags are used when compiling
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# an HDF5 client application.
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#
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# The module will optionally accept the COMPONENTS argument. If no COMPONENTS
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# are specified, then the find module will default to finding only the HDF5 C
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# library. If one or more COMPONENTS are specified, the module will attempt to
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# find the language bindings for the specified components. Currently, the only
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# valid components are C and CXX. The module does not yet support finding the
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# Fortran bindings. If the COMPONENTS argument is not given, the module will
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# attempt to find only the C bindings.
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#
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# On UNIX systems, this module will read the variable HDF5_USE_STATIC_LIBRARIES
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# to determine whether or not to prefer a static link to a dynamic link for HDF5
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# and all of it's dependencies. To use this feature, make sure that the
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# HDF5_USE_STATIC_LIBRARIES variable is set before the call to find_package.
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#
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# To provide the module with a hint about where to find your HDF5 installation,
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# you can set the environment variable HDF5_ROOT. The Find module will then
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# look in this path when searching for HDF5 executables, paths, and libraries.
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#
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# In addition to finding the includes and libraries required to compile an HDF5
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# client application, this module also makes an effort to find tools that come
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# with the HDF5 distribution that may be useful for regression testing.
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#
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# This module will define the following variables:
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# HDF5_INCLUDE_DIRS - Location of the hdf5 includes
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# HDF5_INCLUDE_DIR - Location of the hdf5 includes (deprecated)
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# HDF5_DEFINITIONS - Required compiler definitions for HDF5
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# HDF5_C_LIBRARIES - Required libraries for the HDF5 C bindings.
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# HDF5_CXX_LIBRARIES - Required libraries for the HDF5 C++ bindings
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# HDF5_LIBRARIES - Required libraries for all requested bindings
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# HDF5_FOUND - true if HDF5 was found on the system
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# HDF5_LIBRARY_DIRS - the full set of library directories
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# HDF5_IS_PARALLEL - Whether or not HDF5 was found with parallel IO support
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# HDF5_C_COMPILER_EXECUTABLE - the path to the HDF5 C wrapper compiler
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# HDF5_CXX_COMPILER_EXECUTABLE - the path to the HDF5 C++ wrapper compiler
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# HDF5_DIFF_EXECUTABLE - the path to the HDF5 dataset comparison tool
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#=============================================================================
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# Copyright 2009 Kitware, Inc.
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#
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# Distributed under the OSI-approved BSD License (the "License");
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# see accompanying file Copyright.txt for details.
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#
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# This software is distributed WITHOUT ANY WARRANTY; without even the
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# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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# See the License for more information.
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#=============================================================================
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# (To distribute this file outside of CMake, substitute the full
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# License text for the above reference.)
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# This module is maintained by Will Dicharry <wdicharry@stellarscience.com>.
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include(SelectLibraryConfigurations)
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include(FindPackageHandleStandardArgs)
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# List of the valid HDF5 components
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set( HDF5_VALID_COMPONENTS
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C
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CXX
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)
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# try to find the HDF5 wrapper compilers
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find_program( HDF5_C_COMPILER_EXECUTABLE
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NAMES h5cc h5pcc
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HINTS ENV HDF5_ROOT
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PATH_SUFFIXES bin Bin
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DOC "HDF5 Wrapper compiler. Used only to detect HDF5 compile flags." )
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mark_as_advanced( HDF5_C_COMPILER_EXECUTABLE )
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find_program( HDF5_CXX_COMPILER_EXECUTABLE
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NAMES h5c++ h5pc++
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HINTS ENV HDF5_ROOT
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PATH_SUFFIXES bin Bin
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DOC "HDF5 C++ Wrapper compiler. Used only to detect HDF5 compile flags." )
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mark_as_advanced( HDF5_CXX_COMPILER_EXECUTABLE )
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find_program( HDF5_DIFF_EXECUTABLE
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NAMES h5diff
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HINTS ENV HDF5_ROOT
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PATH_SUFFIXES bin Bin
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DOC "HDF5 file differencing tool." )
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mark_as_advanced( HDF5_DIFF_EXECUTABLE )
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# Invoke the HDF5 wrapper compiler. The compiler return value is stored to the
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# return_value argument, the text output is stored to the output variable.
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macro( _HDF5_invoke_compiler language output return_value )
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if( HDF5_${language}_COMPILER_EXECUTABLE )
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exec_program( ${HDF5_${language}_COMPILER_EXECUTABLE}
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ARGS -show
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OUTPUT_VARIABLE ${output}
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RETURN_VALUE ${return_value}
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)
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if( ${${return_value}} EQUAL 0 )
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# do nothing
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else()
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message( STATUS
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"Unable to determine HDF5 ${language} flags from HDF5 wrapper." )
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endif()
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endif()
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endmacro()
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# Parse a compile line for definitions, includes, library paths, and libraries.
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macro( _HDF5_parse_compile_line
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compile_line_var
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include_paths
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definitions
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library_paths
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libraries )
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# Match the include paths
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string( REGEX MATCHALL "-I([^\" ]+)" include_path_flags
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"${${compile_line_var}}"
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)
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foreach( IPATH ${include_path_flags} )
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string( REGEX REPLACE "^-I" "" IPATH ${IPATH} )
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string( REGEX REPLACE "//" "/" IPATH ${IPATH} )
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list( APPEND ${include_paths} ${IPATH} )
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endforeach()
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# Match the definitions
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string( REGEX MATCHALL "-D[^ ]*" definition_flags "${${compile_line_var}}" )
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foreach( DEF ${definition_flags} )
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list( APPEND ${definitions} ${DEF} )
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endforeach()
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# Match the library paths
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string( REGEX MATCHALL "-L([^\" ]+|\"[^\"]+\")" library_path_flags
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"${${compile_line_var}}"
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)
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foreach( LPATH ${library_path_flags} )
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string( REGEX REPLACE "^-L" "" LPATH ${LPATH} )
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string( REGEX REPLACE "//" "/" LPATH ${LPATH} )
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list( APPEND ${library_paths} ${LPATH} )
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endforeach()
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# now search for the library names specified in the compile line (match -l...)
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# match only -l's preceded by a space or comma
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# this is to exclude directory names like xxx-linux/
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string( REGEX MATCHALL "[, ]-l([^\", ]+)" library_name_flags
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"${${compile_line_var}}" )
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# strip the -l from all of the library flags and add to the search list
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foreach( LIB ${library_name_flags} )
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string( REGEX REPLACE "^[, ]-l" "" LIB ${LIB} )
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list( APPEND ${libraries} ${LIB} )
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endforeach()
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endmacro()
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if( HDF5_INCLUDE_DIRS AND HDF5_LIBRARIES )
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# Do nothing: we already have HDF5_INCLUDE_PATH and HDF5_LIBRARIES in the
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# cache, it would be a shame to override them
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else()
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_HDF5_invoke_compiler( C HDF5_C_COMPILE_LINE HDF5_C_RETURN_VALUE )
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_HDF5_invoke_compiler( CXX HDF5_CXX_COMPILE_LINE HDF5_CXX_RETURN_VALUE )
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if( NOT HDF5_FIND_COMPONENTS )
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set( HDF5_LANGUAGE_BINDINGS "C" )
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else()
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# add the extra specified components, ensuring that they are valid.
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foreach( component ${HDF5_FIND_COMPONENTS} )
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list( FIND HDF5_VALID_COMPONENTS ${component} component_location )
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if( ${component_location} EQUAL -1 )
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message( FATAL_ERROR
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"\"${component}\" is not a valid HDF5 component." )
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else()
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list( APPEND HDF5_LANGUAGE_BINDINGS ${component} )
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endif()
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endforeach()
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endif()
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# seed the initial lists of libraries to find with items we know we need
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set( HDF5_C_LIBRARY_NAMES_INIT hdf5_hl hdf5 )
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set( HDF5_CXX_LIBRARY_NAMES_INIT hdf5_cpp ${HDF5_C_LIBRARY_NAMES_INIT} )
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foreach( LANGUAGE ${HDF5_LANGUAGE_BINDINGS} )
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if( HDF5_${LANGUAGE}_COMPILE_LINE )
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_HDF5_parse_compile_line( HDF5_${LANGUAGE}_COMPILE_LINE
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HDF5_${LANGUAGE}_INCLUDE_FLAGS
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HDF5_${LANGUAGE}_DEFINITIONS
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HDF5_${LANGUAGE}_LIBRARY_DIRS
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HDF5_${LANGUAGE}_LIBRARY_NAMES
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)
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# take a guess that the includes may be in the 'include' sibling directory
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# of a library directory.
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foreach( dir ${HDF5_${LANGUAGE}_LIBRARY_DIRS} )
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list( APPEND HDF5_${LANGUAGE}_INCLUDE_FLAGS ${dir}/../include )
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endforeach()
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endif()
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# set the definitions for the language bindings.
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list( APPEND HDF5_DEFINITIONS ${HDF5_${LANGUAGE}_DEFINITIONS} )
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# find the HDF5 include directories
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find_path( HDF5_${LANGUAGE}_INCLUDE_DIR hdf5.h
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HINTS
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${HDF5_${LANGUAGE}_INCLUDE_FLAGS}
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ENV
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HDF5_ROOT
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PATHS
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$ENV{HOME}/.local/include
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PATH_SUFFIXES
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include
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Include
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)
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mark_as_advanced( HDF5_${LANGUAGE}_INCLUDE_DIR )
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list( APPEND HDF5_INCLUDE_DIRS ${HDF5_${LANGUAGE}_INCLUDE_DIR} )
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set( HDF5_${LANGUAGE}_LIBRARY_NAMES
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${HDF5_${LANGUAGE}_LIBRARY_NAMES_INIT}
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${HDF5_${LANGUAGE}_LIBRARY_NAMES} )
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# find the HDF5 libraries
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foreach( LIB ${HDF5_${LANGUAGE}_LIBRARY_NAMES} )
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if( UNIX AND HDF5_USE_STATIC_LIBRARIES )
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# According to bug 1643 on the CMake bug tracker, this is the
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# preferred method for searching for a static library.
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# See http://www.cmake.org/Bug/view.php?id=1643. We search
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# first for the full static library name, but fall back to a
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# generic search on the name if the static search fails.
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set( THIS_LIBRARY_SEARCH_DEBUG lib${LIB}d.a ${LIB}d )
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set( THIS_LIBRARY_SEARCH_RELEASE lib${LIB}.a ${LIB} )
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else()
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set( THIS_LIBRARY_SEARCH_DEBUG ${LIB}d )
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set( THIS_LIBRARY_SEARCH_RELEASE ${LIB} )
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endif()
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find_library( HDF5_${LIB}_LIBRARY_DEBUG
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NAMES ${THIS_LIBRARY_SEARCH_DEBUG}
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HINTS ${HDF5_${LANGUAGE}_LIBRARY_DIRS}
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ENV HDF5_ROOT
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PATH_SUFFIXES lib Lib )
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find_library( HDF5_${LIB}_LIBRARY_RELEASE
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NAMES ${THIS_LIBRARY_SEARCH_RELEASE}
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HINTS ${HDF5_${LANGUAGE}_LIBRARY_DIRS}
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ENV HDF5_ROOT
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PATH_SUFFIXES lib Lib )
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select_library_configurations( HDF5_${LIB} )
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# even though we adjusted the individual library names in
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# select_library_configurations, we still need to distinguish
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# between debug and release variants because HDF5_LIBRARIES will
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# need to specify different lists for debug and optimized builds.
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# We can't just use the HDF5_${LIB}_LIBRARY variable (which was set
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# up by the selection macro above) because it may specify debug and
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# optimized variants for a particular library, but a list of
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# libraries is allowed to specify debug and optimized only once.
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list( APPEND HDF5_${LANGUAGE}_LIBRARIES_DEBUG
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${HDF5_${LIB}_LIBRARY_DEBUG} )
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list( APPEND HDF5_${LANGUAGE}_LIBRARIES_RELEASE
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${HDF5_${LIB}_LIBRARY_RELEASE} )
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endforeach()
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list( APPEND HDF5_LIBRARY_DIRS ${HDF5_${LANGUAGE}_LIBRARY_DIRS} )
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# Append the libraries for this language binding to the list of all
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# required libraries.
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list( APPEND HDF5_LIBRARIES_DEBUG
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${HDF5_${LANGUAGE}_LIBRARIES_DEBUG} )
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list( APPEND HDF5_LIBRARIES_RELEASE
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${HDF5_${LANGUAGE}_LIBRARIES_RELEASE} )
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endforeach()
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# We may have picked up some duplicates in various lists during the above
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# process for the language bindings (both the C and C++ bindings depend on
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# libz for example). Remove the duplicates.
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if( HDF5_INCLUDE_DIRS )
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list( REMOVE_DUPLICATES HDF5_INCLUDE_DIRS )
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endif()
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if( HDF5_LIBRARIES_DEBUG )
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list( REMOVE_DUPLICATES HDF5_LIBRARIES_DEBUG )
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endif()
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if( HDF5_LIBRARIES_RELEASE )
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list( REMOVE_DUPLICATES HDF5_LIBRARIES_RELEASE )
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endif()
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if( HDF5_LIBRARY_DIRS )
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list( REMOVE_DUPLICATES HDF5_LIBRARY_DIRS )
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endif()
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# Construct the complete list of HDF5 libraries with debug and optimized
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# variants when the generator supports them.
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if( CMAKE_CONFIGURATION_TYPES OR CMAKE_BUILD_TYPE )
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set( HDF5_LIBRARIES
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debug ${HDF5_LIBRARIES_DEBUG}
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optimized ${HDF5_LIBRARIES_RELEASE} )
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else()
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set( HDF5_LIBRARIES ${HDF5_LIBRARIES_RELEASE} )
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endif()
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# If the HDF5 include directory was found, open H5pubconf.h to determine if
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# HDF5 was compiled with parallel IO support
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set( HDF5_IS_PARALLEL FALSE )
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foreach( _dir IN LISTS HDF5_INCLUDE_DIRS )
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if( EXISTS "${_dir}/H5pubconf.h" )
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file( STRINGS "${_dir}/H5pubconf.h"
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HDF5_HAVE_PARALLEL_DEFINE
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REGEX "HAVE_PARALLEL 1" )
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if( HDF5_HAVE_PARALLEL_DEFINE )
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set( HDF5_IS_PARALLEL TRUE )
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endif()
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endif()
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endforeach()
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set( HDF5_IS_PARALLEL ${HDF5_IS_PARALLEL} CACHE BOOL
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"HDF5 library compiled with parallel IO support" )
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mark_as_advanced( HDF5_IS_PARALLEL )
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endif()
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find_package_handle_standard_args( HDF5 DEFAULT_MSG
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HDF5_LIBRARIES
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HDF5_INCLUDE_DIRS
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)
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mark_as_advanced(
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HDF5_INCLUDE_DIRS
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HDF5_LIBRARIES
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HDF5_DEFINTIONS
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HDF5_LIBRARY_DIRS
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HDF5_C_COMPILER_EXECUTABLE
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HDF5_CXX_COMPILER_EXECUTABLE )
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# For backwards compatibility we set HDF5_INCLUDE_DIR to the value of
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# HDF5_INCLUDE_DIRS
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set( HDF5_INCLUDE_DIR "${HDF5_INCLUDE_DIRS}" )
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