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# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
# file Copyright.txt or https://cmake.org/licensing for details.
#[=======================================================================[.rst:
UseSWIG
-------
This file provides support for ``SWIG``. It is assumed that :module:`FindSWIG`
module has already been loaded.
.. only:: html
.. contents::
CMake Commands
^^^^^^^^^^^^^^
The following command is defined for use with ``SWIG``:
.. command:: swig_add_library
.. versionadded:: 3.8
Define swig module with given name and specified language::
swig_add_library(<name>
[TYPE <SHARED|MODULE|STATIC|USE_BUILD_SHARED_LIBS>]
LANGUAGE <language>
[NO_PROXY]
[OUTPUT_DIR <directory>]
[OUTFILE_DIR <directory>]
SOURCES <file>...
)
Targets created with the ``swig_add_library`` command have the same
capabilities as targets created with the :command:`add_library` command, so
those targets can be used with any command expecting a target (e.g.
:command:`target_link_libraries`).
.. versionchanged:: 3.13
This command creates a target with the specified ``<name>`` when
policy :policy:`CMP0078` is set to ``NEW``. Otherwise, the legacy
behavior will choose a different target name and store it in the
``SWIG_MODULE_<name>_REAL_NAME`` variable.
.. versionchanged:: 3.15
Alternate library name (set with the :prop_tgt:`OUTPUT_NAME` property,
for example) will be passed on to ``Python`` and ``CSharp`` wrapper
libraries.
.. versionchanged:: 3.21
Generated library use standard naming conventions for ``CSharp`` language
when policy :policy:`CMP0122` is set to ``NEW``. Otherwise, the legacy
behavior is applied.
.. note::
For multi-config generators, this module does not support
configuration-specific files generated by ``SWIG``. All build
configurations must result in the same generated source file.
.. note::
For :ref:`Makefile Generators`, if, for some sources, the
``USE_SWIG_DEPENDENCIES`` property is ``FALSE``, ``swig_add_library`` does
not track file dependencies, so depending on the ``<name>_swig_compilation``
custom target is required for targets which require the ``swig``-generated
files to exist. Other generators may depend on the source files that would
be generated by SWIG.
``TYPE``
``SHARED``, ``MODULE`` and ``STATIC`` have the same semantic as for the
:command:`add_library` command. If ``USE_BUILD_SHARED_LIBS`` is specified,
the library type will be ``STATIC`` or ``SHARED`` based on whether the
current value of the :variable:`BUILD_SHARED_LIBS` variable is ``ON``. If
no type is specified, ``MODULE`` will be used.
``LANGUAGE``
Specify the target language.
.. versionadded:: 3.1
Go and Lua language support.
.. versionadded:: 3.2
R language support.
.. versionadded:: 3.18
Fortran language support.
``NO_PROXY``
.. versionadded:: 3.12
Prevent the generation of the wrapper layer (swig ``-noproxy`` option).
``OUTPUT_DIR``
.. versionadded:: 3.12
Specify where to write the language specific files (swig ``-outdir``
option). If not given, the ``CMAKE_SWIG_OUTDIR`` variable will be used.
If neither is specified, the default depends on the value of the
``UseSWIG_MODULE_VERSION`` variable as follows:
* If ``UseSWIG_MODULE_VERSION`` is 1 or is undefined, output is written to
the :variable:`CMAKE_CURRENT_BINARY_DIR` directory.
* If ``UseSWIG_MODULE_VERSION`` is 2, a dedicated directory will be used.
The path of this directory can be retrieved from the
``SWIG_SUPPORT_FILES_DIRECTORY`` target property.
``OUTFILE_DIR``
.. versionadded:: 3.12
Specify an output directory name where the generated source file will be
placed (swig ``-o`` option). If not specified, the ``SWIG_OUTFILE_DIR``
variable will be used. If neither is specified, ``OUTPUT_DIR`` or
``CMAKE_SWIG_OUTDIR`` is used instead.
``SOURCES``
List of sources for the library. Files with extension ``.i`` will be
identified as sources for the ``SWIG`` tool. Other files will be handled in
the standard way.
.. versionadded:: 3.14
This behavior can be overridden by specifying the variable
``SWIG_SOURCE_FILE_EXTENSIONS``.
.. note::
If ``UseSWIG_MODULE_VERSION`` is set to 2, it is **strongly** recommended
to use a dedicated directory unique to the target when either the
``OUTPUT_DIR`` option or the ``CMAKE_SWIG_OUTDIR`` variable are specified.
The output directory contents are erased as part of the target build, so
to prevent interference between targets or losing other important files,
each target should have its own dedicated output directory.
Properties on Source Files
^^^^^^^^^^^^^^^^^^^^^^^^^^
Source file properties on module files **must** be set before the invocation
of the ``swig_add_library`` command to specify special behavior of SWIG and
ensure generated files will receive the required settings.
``CPLUSPLUS``
Call SWIG in c++ mode. For example:
.. code-block:: cmake
set_property(SOURCE mymod.i PROPERTY CPLUSPLUS ON)
swig_add_library(mymod LANGUAGE python SOURCES mymod.i)
``SWIG_FLAGS``
.. deprecated:: 3.12
Replaced with the fine-grained properties that follow.
Pass custom flags to the SWIG executable.
``INCLUDE_DIRECTORIES``, ``COMPILE_DEFINITIONS`` and ``COMPILE_OPTIONS``
.. versionadded:: 3.12
Add custom flags to SWIG compiler and have same semantic as properties
:prop_sf:`INCLUDE_DIRECTORIES`, :prop_sf:`COMPILE_DEFINITIONS` and
:prop_sf:`COMPILE_OPTIONS`.
``USE_TARGET_INCLUDE_DIRECTORIES``
.. versionadded:: 3.13
If set to ``TRUE``, contents of target property
:prop_tgt:`INCLUDE_DIRECTORIES` will be forwarded to ``SWIG`` compiler.
If set to ``FALSE`` target property :prop_tgt:`INCLUDE_DIRECTORIES` will be
ignored. If not set, target property ``SWIG_USE_TARGET_INCLUDE_DIRECTORIES``
will be considered.
``GENERATED_INCLUDE_DIRECTORIES``, ``GENERATED_COMPILE_DEFINITIONS`` and ``GENERATED_COMPILE_OPTIONS``
.. versionadded:: 3.12
Add custom flags to the C/C++ generated source. They will fill, respectively,
properties :prop_sf:`INCLUDE_DIRECTORIES`, :prop_sf:`COMPILE_DEFINITIONS` and
:prop_sf:`COMPILE_OPTIONS` of generated C/C++ file.
``DEPENDS``
.. versionadded:: 3.12
Specify additional dependencies to the source file.
``USE_SWIG_DEPENDENCIES``
.. versionadded:: 3.20
If set to ``TRUE``, implicit dependencies are generated by the ``swig`` tool
itself. This property is only meaningful for
:ref:`Makefile <Makefile Generators>`,
:ref:`Ninja <Ninja Generators>`, :generator:`Xcode`, and
:ref:`Visual Studio <Visual Studio Generators>`
(:generator:`Visual Studio 11 2012` and above) generators. Default value is
``FALSE``.
.. versionadded:: 3.21
Added the support of :generator:`Xcode` generator.
.. versionadded:: 3.22
Added the support of :ref:`Visual Studio Generators`.
``SWIG_MODULE_NAME``
Specify the actual import name of the module in the target language.
This is required if it cannot be scanned automatically from source
or different from the module file basename. For example:
.. code-block:: cmake
set_property(SOURCE mymod.i PROPERTY SWIG_MODULE_NAME mymod_realname)
.. versionchanged:: 3.14
If policy :policy:`CMP0086` is set to ``NEW``, ``-module <module_name>``
is passed to ``SWIG`` compiler.
``OUTPUT_DIR``
.. versionadded:: 3.19
Specify where to write the language specific files (swig ``-outdir`` option)
for the considered source file. If not specified, the other ways to define
the output directory applies (see ``OUTPUT_DIR`` option of
``swig_add_library()`` command).
``OUTFILE_DIR``
.. versionadded:: 3.19
Specify an output directory where the generated source file will be placed
(swig ``-o`` option) for the considered source file. If not specified,
``OUTPUT_DIR`` source property will be used. If neither are specified, the
other ways to define output file directory applies (see ``OUTFILE_DIR``
option of ``swig_add_library()`` command).
Properties on Targets
^^^^^^^^^^^^^^^^^^^^^
Target library properties can be set to apply same configuration to all SWIG
input files.
``SWIG_INCLUDE_DIRECTORIES``, ``SWIG_COMPILE_DEFINITIONS`` and ``SWIG_COMPILE_OPTIONS``
.. versionadded:: 3.12
These properties will be applied to all SWIG input files and have same
semantic as target properties :prop_tgt:`INCLUDE_DIRECTORIES`,
:prop_tgt:`COMPILE_DEFINITIONS` and :prop_tgt:`COMPILE_OPTIONS`.
.. code-block:: cmake
set (UseSWIG_TARGET_NAME_PREFERENCE STANDARD)
swig_add_library(mymod LANGUAGE python SOURCES mymod.i)
set_property(TARGET mymod PROPERTY SWIG_COMPILE_DEFINITIONS MY_DEF1 MY_DEF2)
set_property(TARGET mymod PROPERTY SWIG_COMPILE_OPTIONS -bla -blb)
``SWIG_USE_TARGET_INCLUDE_DIRECTORIES``
.. versionadded:: 3.13
If set to ``TRUE``, contents of target property
:prop_tgt:`INCLUDE_DIRECTORIES` will be forwarded to ``SWIG`` compiler.
If set to ``FALSE`` or not defined, target property
:prop_tgt:`INCLUDE_DIRECTORIES` will be ignored. This behavior can be
overridden by specifying source property ``USE_TARGET_INCLUDE_DIRECTORIES``.
``SWIG_GENERATED_INCLUDE_DIRECTORIES``, ``SWIG_GENERATED_COMPILE_DEFINITIONS`` and ``SWIG_GENERATED_COMPILE_OPTIONS``
.. versionadded:: 3.12
These properties will populate, respectively, properties
:prop_sf:`INCLUDE_DIRECTORIES`, :prop_sf:`COMPILE_DEFINITIONS` and
:prop_sf:`COMPILE_FLAGS` of all generated C/C++ files.
``SWIG_DEPENDS``
.. versionadded:: 3.12
Add dependencies to all SWIG input files.
Read-only Target Properties
"""""""""""""""""""""""""""
The following target properties are output properties and can be used to get
information about support files generated by ``SWIG`` interface compilation.
``SWIG_SUPPORT_FILES``
.. versionadded:: 3.12
This output property list of wrapper files generated during SWIG compilation.
.. code-block:: cmake
set (UseSWIG_TARGET_NAME_PREFERENCE STANDARD)
swig_add_library(mymod LANGUAGE python SOURCES mymod.i)
get_property(support_files TARGET mymod PROPERTY SWIG_SUPPORT_FILES)
.. note::
Only most principal support files are listed. In case some advanced
features of ``SWIG`` are used (for example ``%template``), associated
support files may not be listed. Prefer to use the
``SWIG_SUPPORT_FILES_DIRECTORY`` property to handle support files.
``SWIG_SUPPORT_FILES_DIRECTORY``
.. versionadded:: 3.12
This output property specifies the directory where support files will be
generated.
.. note::
When source property ``OUTPUT_DIR`` is defined, multiple directories can be
specified as part of ``SWIG_SUPPORT_FILES_DIRECTORY``.
CMake Variables
^^^^^^^^^^^^^^^
Some variables can be set to customize the behavior of ``swig_add_library``
as well as ``SWIG``:
``UseSWIG_MODULE_VERSION``
.. versionadded:: 3.12
Specify different behaviors for ``UseSWIG`` module.
* Set to 1 or undefined: Legacy behavior is applied.
* Set to 2: A new strategy is applied regarding support files: the output
directory of support files is erased before ``SWIG`` interface compilation.
``CMAKE_SWIG_FLAGS``
Add flags to all swig calls.
``CMAKE_SWIG_OUTDIR``
Specify where to write the language specific files (swig ``-outdir`` option).
``SWIG_OUTFILE_DIR``
.. versionadded:: 3.8
Specify an output directory name where the generated source file will be
placed. If not specified, ``CMAKE_SWIG_OUTDIR`` is used.
``SWIG_MODULE_<name>_EXTRA_DEPS``
Specify extra dependencies for the generated module for ``<name>``.
``SWIG_SOURCE_FILE_EXTENSIONS``
.. versionadded:: 3.14
Specify a list of source file extensions to override the default
behavior of considering only ``.i`` files as sources for the ``SWIG``
tool. For example:
.. code-block:: cmake
set(SWIG_SOURCE_FILE_EXTENSIONS ".i" ".swg")
``SWIG_USE_SWIG_DEPENDENCIES``
.. versionadded:: 3.20
If set to ``TRUE``, implicit dependencies are generated by the ``swig`` tool
itself. This variable is only meaningful for
:ref:`Makefile <Makefile Generators>`,
:ref:`Ninja <Ninja Generators>`, :generator:`Xcode`, and
:ref:`Visual Studio <Visual Studio Generators>`
(:generator:`Visual Studio 11 2012` and above) generators. Default value is
``FALSE``.
Source file property ``USE_SWIG_DEPENDENCIES``, if not defined, will be
initialized with the value of this variable.
.. versionadded:: 3.21
Added the support of :generator:`Xcode` generator.
.. versionadded:: 3.22
Added the support of :ref:`Visual Studio Generators`.
Deprecated Commands
^^^^^^^^^^^^^^^^^^^
.. command:: swig_link_libraries
.. deprecated:: 3.13
Use :command:`target_link_libraries` with the standard target name,
or with ``${SWIG_MODULE_<name>_REAL_NAME}`` for legacy target naming.
Link libraries to swig module::
swig_link_libraries(<name> <item>...)
This command has same capabilities as :command:`target_link_libraries`
command.
.. note::
When policy :policy:`CMP0078` is set to ``NEW``,
:command:`swig_add_library` creates a standard target with the
specified ``<name>`` and :command:`target_link_libraries` must be used
instead of this command.
With the legacy behavior (when :policy:`CMP0078` is set to ``OLD`` and
the ``UseSWIG_TARGET_NAME_PREFERENCE`` variable is set to ``"LEGACY"``,
or in CMake versions prior to 3.12), it is preferable to use
``target_link_libraries(${SWIG_MODULE_<name>_REAL_NAME} ...)``
instead of this command.
#]=======================================================================]
cmake_policy(PUSH)
# numbers and boolean constants
cmake_policy (SET CMP0012 NEW)
# IN_LIST operator
cmake_policy (SET CMP0057 NEW)
# Ninja generator normalizes custom command depfile paths
cmake_policy (SET CMP0116 NEW)
set(SWIG_CXX_EXTENSION "cxx")
set(SWIG_EXTRA_LIBRARIES "")
set(SWIG_PYTHON_EXTRA_FILE_EXTENSIONS ".py")
set(SWIG_JAVA_EXTRA_FILE_EXTENSIONS ".java" "JNI.java")
set(SWIG_CSHARP_EXTRA_FILE_EXTENSIONS ".cs" "PINVOKE.cs")
set(SWIG_PERL_EXTRA_FILE_EXTENSIONS ".pm")
set(SWIG_PERL5_EXTRA_FILE_EXTENSIONS ".pm")
set(SWIG_MANAGE_SUPPORT_FILES_SCRIPT "${CMAKE_CURRENT_LIST_DIR}/UseSWIG/ManageSupportFiles.cmake")
##
## PRIVATE functions
##
function (__SWIG_COMPUTE_TIMESTAMP name language infile workingdir __timestamp)
get_filename_component(filename "${infile}" NAME_WE)
set(${__timestamp}
"${workingdir}/${filename}${language}.stamp" PARENT_SCOPE)
# get_filename_component(filename "${infile}" ABSOLUTE)
# string(UUID uuid NAMESPACE 9735D882-D2F8-4E1D-88C9-A0A4F1F6ECA4
# NAME ${name}-${language}-${filename} TYPE SHA1)
# set(${__timestamp} "${workingdir}/${uuid}.stamp" PARENT_SCOPE)
endfunction()
#
# For given swig module initialize variables associated with it
#
macro(SWIG_MODULE_INITIALIZE name language)
string(TOUPPER "${language}" SWIG_MODULE_${name}_LANGUAGE)
string(TOLOWER "${language}" SWIG_MODULE_${name}_SWIG_LANGUAGE_FLAG)
if (NOT DEFINED SWIG_MODULE_${name}_NOPROXY)
set (SWIG_MODULE_${name}_NOPROXY FALSE)
endif()
if ("-noproxy" IN_LIST CMAKE_SWIG_FLAGS)
set (SWIG_MODULE_${name}_NOPROXY TRUE)
endif ()
if (SWIG_MODULE_${name}_NOPROXY AND
NOT ("-noproxy" IN_LIST CMAKE_SWIG_FLAGS OR "-noproxy" IN_LIST SWIG_MODULE_${name}_EXTRA_FLAGS))
list (APPEND SWIG_MODULE_${name}_EXTRA_FLAGS "-noproxy")
endif()
if(SWIG_MODULE_${name}_LANGUAGE STREQUAL "UNKNOWN")
message(FATAL_ERROR "SWIG Error: Language \"${language}\" not found")
elseif((SWIG_MODULE_${name}_LANGUAGE STREQUAL "PERL" OR SWIG_MODULE_${name}_LANGUAGE STREQUAL "PERL5")
AND NOT "-shadow" IN_LIST SWIG_MODULE_${name}_EXTRA_FLAGS)
list(APPEND SWIG_MODULE_${name}_EXTRA_FLAGS "-shadow")
endif()
endmacro()
#
# For a given language, input file, and output file, determine extra files that
# will be generated. This is internal swig macro.
#
function(SWIG_GET_EXTRA_OUTPUT_FILES language outfiles generatedpath infile)
set(files)
get_source_file_property(module_basename
"${infile}" SWIG_MODULE_NAME)
if(NOT module_basename)
# try to get module name from "%module foo" syntax
if ( EXISTS "${infile}" )
file ( STRINGS "${infile}" module_basename REGEX "[ ]*%module[ ]*[a-zA-Z0-9_]+.*" )
endif ()
if ( module_basename )
string ( REGEX REPLACE "[ ]*%module[ ]*([a-zA-Z0-9_]+).*" "\\1" module_basename "${module_basename}" )
else ()
# try to get module name from "%module (options=...) foo" syntax
if ( EXISTS "${infile}" )
file ( STRINGS "${infile}" module_basename REGEX "[ ]*%module[ ]*\\(.*\\)[ ]*[a-zA-Z0-9_]+.*" )
endif ()
if ( module_basename )
string ( REGEX REPLACE "[ ]*%module[ ]*\\(.*\\)[ ]*([a-zA-Z0-9_]+).*" "\\1" module_basename "${module_basename}" )
else ()
# fallback to file basename
get_filename_component(module_basename "${infile}" NAME_WE)
endif ()
endif ()
endif()
foreach(it ${SWIG_${language}_EXTRA_FILE_EXTENSIONS})
set(extra_file "${generatedpath}/${module_basename}${it}")
if (extra_file MATCHES "\\.cs$" AND CMAKE_CSharp_COMPILER_LOADED)
set_source_files_properties(${extra_file} PROPERTIES LANGUAGE "CSharp")
else()
# Treat extra outputs as plain files regardless of language.
set_source_files_properties(${extra_file} PROPERTIES LANGUAGE "")
endif()
list(APPEND files "${extra_file}")
endforeach()
if (language STREQUAL "FORTRAN" AND CMAKE_Fortran_COMPILER_LOADED)
# Process possible user-supplied extension in flags (obtained via parent
# scope variable) to determine the source file name.
list(FIND SWIG_COMPILATION_FLAGS "-fext" fext_idx)
if (fext_idx EQUAL -1)
# Default Fortran generated extension
set(fext "f90")
else()
# Get extension from user-provided flag
math(EXPR fext_idx "${fext_idx} + 1")
list(GET SWIG_COMPILATION_FLAGS "${fext_idx}" fext)
endif()
set(extra_file "${generatedpath}/${module_basename}.${fext}")
set_source_files_properties("${extra_file}" PROPERTIES LANGUAGE "Fortran")
list(APPEND files "${extra_file}")
endif()
set (${outfiles} ${files} PARENT_SCOPE)
endfunction()
#
# Take swig (*.i) file and add proper custom commands for it
#
function(SWIG_ADD_SOURCE_TO_MODULE name outfiles infile)
get_filename_component(swig_source_file_name_we "${infile}" NAME_WE)
get_source_file_property(swig_source_file_cplusplus "${infile}" CPLUSPLUS)
get_source_file_property(swig_source_file_outdir "${infile}" OUTPUT_DIR)
get_source_file_property(swig_source_file_outfiledir "${infile}" OUTFILE_DIR)
if (swig_source_file_outdir)
# use source file property
set(outdir "${swig_source_file_outdir}")
if (NOT swig_source_file_outfiledir)
set (swig_source_file_outfiledir "${outdir}")
endif()
elseif(CMAKE_SWIG_OUTDIR)
set(outdir ${CMAKE_SWIG_OUTDIR})
else()
set(outdir ${CMAKE_CURRENT_BINARY_DIR})
endif()
if (swig_source_file_outfiledir)
set (outfiledir "${swig_source_file_outfiledir}")
elseif(SWIG_OUTFILE_DIR)
set(outfiledir ${SWIG_OUTFILE_DIR})
else()
set(outfiledir ${outdir})
endif()
if(SWIG_WORKING_DIR)
set (workingdir "${SWIG_WORKING_DIR}")
else()
set(workingdir "${outdir}")
endif()
if(SWIG_TARGET_NAME)
set(target_name ${SWIG_TARGET_NAME})
else()
set(target_name ${name})
endif()
set (use_swig_dependencies ${SWIG_USE_SWIG_DEPENDENCIES})
if (CMAKE_GENERATOR MATCHES "Make|Ninja|Xcode|Visual Studio (1[1-9]|[2-9][0-9])")
get_property(use_swig_dependencies_set SOURCE "${infile}" PROPERTY USE_SWIG_DEPENDENCIES SET)
if (use_swig_dependencies_set)
get_property(use_swig_dependencies SOURCE "${infile}" PROPERTY USE_SWIG_DEPENDENCIES)
endif()
endif()
set (swig_source_file_flags ${CMAKE_SWIG_FLAGS})
# handle various swig compile flags properties
get_source_file_property (include_directories "${infile}" INCLUDE_DIRECTORIES)
if (include_directories)
list (APPEND swig_source_file_flags "$<$<BOOL:${include_directories}>:-I$<JOIN:${include_directories},$<SEMICOLON>-I>>")
endif()
set (property "$<TARGET_PROPERTY:${target_name},SWIG_INCLUDE_DIRECTORIES>")
list (APPEND swig_source_file_flags "$<$<BOOL:${property}>:-I$<JOIN:$<TARGET_GENEX_EVAL:${target_name},${property}>,$<SEMICOLON>-I>>")
set (property "$<REMOVE_DUPLICATES:$<TARGET_PROPERTY:${target_name},INCLUDE_DIRECTORIES>>")
get_source_file_property(use_target_include_dirs "${infile}" USE_TARGET_INCLUDE_DIRECTORIES)
if (use_target_include_dirs)
list (APPEND swig_source_file_flags "$<$<BOOL:${property}>:-I$<JOIN:${property},$<SEMICOLON>-I>>")
elseif(use_target_include_dirs STREQUAL "NOTFOUND")
# not defined at source level, rely on target level
list (APPEND swig_source_file_flags "$<$<AND:$<BOOL:$<TARGET_PROPERTY:${target_name},SWIG_USE_TARGET_INCLUDE_DIRECTORIES>>,$<BOOL:${property}>>:-I$<JOIN:${property},$<SEMICOLON>-I>>")
endif()
set (property "$<TARGET_PROPERTY:${target_name},SWIG_COMPILE_DEFINITIONS>")
list (APPEND swig_source_file_flags "$<$<BOOL:${property}>:-D$<JOIN:$<TARGET_GENEX_EVAL:${target_name},${property}>,$<SEMICOLON>-D>>")
get_source_file_property (compile_definitions "${infile}" COMPILE_DEFINITIONS)
if (compile_definitions)
list (APPEND swig_source_file_flags "$<$<BOOL:${compile_definitions}>:-D$<JOIN:${compile_definitions},$<SEMICOLON>-D>>")
endif()
list (APPEND swig_source_file_flags "$<TARGET_GENEX_EVAL:${target_name},$<TARGET_PROPERTY:${target_name},SWIG_COMPILE_OPTIONS>>")
get_source_file_property (compile_options "${infile}" COMPILE_OPTIONS)
if (compile_options)
list (APPEND swig_source_file_flags ${compile_options})
endif()
# legacy support
get_source_file_property (swig_flags "${infile}" SWIG_FLAGS)
if (swig_flags)
list (APPEND swig_source_file_flags ${swig_flags})
endif()
get_filename_component(swig_source_file_fullname "${infile}" ABSOLUTE)
if (NOT SWIG_MODULE_${name}_NOPROXY)
set(SWIG_COMPILATION_FLAGS ${swig_source_file_flags})
SWIG_GET_EXTRA_OUTPUT_FILES(${SWIG_MODULE_${name}_LANGUAGE}
swig_extra_generated_files
"${outdir}"
"${swig_source_file_fullname}")
endif()
set(swig_generated_file_fullname
"${outfiledir}/${swig_source_file_name_we}")
# add the language into the name of the file (i.e. TCL_wrap)
# this allows for the same .i file to be wrapped into different languages
string(APPEND swig_generated_file_fullname
"${SWIG_MODULE_${name}_LANGUAGE}_wrap")
if(swig_source_file_cplusplus)
string(APPEND swig_generated_file_fullname
".${SWIG_CXX_EXTENSION}")
else()
string(APPEND swig_generated_file_fullname
".c")
endif()
get_directory_property (cmake_include_directories INCLUDE_DIRECTORIES)
list (REMOVE_DUPLICATES cmake_include_directories)
set (swig_include_dirs)
if (cmake_include_directories)
set (swig_include_dirs "$<$<BOOL:${cmake_include_directories}>:-I$<JOIN:${cmake_include_directories},$<SEMICOLON>-I>>")
endif()
set(swig_special_flags)
# default is c, so add c++ flag if it is c++
if(swig_source_file_cplusplus)
list (APPEND swig_special_flags "-c++")
endif()
cmake_policy(GET CMP0086 module_name_policy)
if (module_name_policy STREQUAL "NEW")
get_source_file_property(module_name "${infile}" SWIG_MODULE_NAME)
if (module_name)
list (APPEND swig_special_flags "-module" "${module_name}")
endif()
else()
if (NOT module_name_policy)
cmake_policy(GET_WARNING CMP0086 _cmp0086_warning)
message(AUTHOR_WARNING "${_cmp0086_warning}\n")
endif()
endif()
set (swig_extra_flags)
if(SWIG_MODULE_${name}_LANGUAGE STREQUAL "CSHARP")
if(NOT ("-dllimport" IN_LIST swig_source_file_flags OR "-dllimport" IN_LIST SWIG_MODULE_${name}_EXTRA_FLAGS))
# This makes sure that the name used in the generated DllImport
# matches the library name created by CMake
list (APPEND SWIG_MODULE_${name}_EXTRA_FLAGS "-dllimport" "$<TARGET_FILE_PREFIX:${target_name}>$<TARGET_FILE_BASE_NAME:${target_name}>")
endif()
endif()
if (SWIG_MODULE_${name}_LANGUAGE STREQUAL "PYTHON" AND NOT SWIG_MODULE_${name}_NOPROXY)
if(SWIG_USE_INTERFACE AND
NOT ("-interface" IN_LIST swig_source_file_flags OR "-interface" IN_LIST SWIG_MODULE_${name}_EXTRA_FLAGS))
# This makes sure that the name used in the proxy code
# matches the library name created by CMake
list (APPEND SWIG_MODULE_${name}_EXTRA_FLAGS "-interface" "$<TARGET_FILE_PREFIX:${target_name}>$<TARGET_FILE_BASE_NAME:${target_name}>")
endif()
endif()
list (APPEND swig_extra_flags ${SWIG_MODULE_${name}_EXTRA_FLAGS})
# dependencies
set (swig_dependencies DEPENDS ${SWIG_MODULE_${name}_EXTRA_DEPS} $<TARGET_PROPERTY:${target_name},SWIG_DEPENDS>)
get_source_file_property(file_depends "${infile}" DEPENDS)
if (file_depends)
list (APPEND swig_dependencies ${file_depends})
endif()
if (UseSWIG_MODULE_VERSION VERSION_GREATER 1)
# as part of custom command, start by removing old generated files
# to ensure obsolete files do not stay
set (swig_file_outdir "${workingdir}/${swig_source_file_name_we}.files")
set (swig_cleanup_command COMMAND "${CMAKE_COMMAND}" "-DSUPPORT_FILES_WORKING_DIRECTORY=${swig_file_outdir}" "-DSUPPORT_FILES_OUTPUT_DIRECTORY=${outdir}" -DACTION=CLEAN -P "${SWIG_MANAGE_SUPPORT_FILES_SCRIPT}")
set (swig_copy_command COMMAND "${CMAKE_COMMAND}" "-DSUPPORT_FILES_WORKING_DIRECTORY=${swig_file_outdir}" "-DSUPPORT_FILES_OUTPUT_DIRECTORY=${outdir}" -DACTION=COPY -P "${SWIG_MANAGE_SUPPORT_FILES_SCRIPT}")
else()
set (swig_file_outdir "${outdir}")
unset (swig_cleanup_command)
unset (swig_copy_command)
endif()
set(swig_depends_flags)
if(NOT use_swig_dependencies AND CMAKE_GENERATOR MATCHES "Make")
# IMPLICIT_DEPENDS can not handle situations where a dependent file is
# removed. We need an extra step with timestamp and custom target, see #16830
# As this is needed only for Makefile generator do it conditionally
__swig_compute_timestamp(${name} ${SWIG_MODULE_${name}_LANGUAGE}
"${infile}" "${workingdir}" swig_generated_timestamp)
set(swig_custom_output "${swig_generated_timestamp}")
set(swig_custom_products
BYPRODUCTS "${swig_generated_file_fullname}" ${swig_extra_generated_files})
set(swig_timestamp_command
COMMAND ${CMAKE_COMMAND} -E touch "${swig_generated_timestamp}")
list(APPEND swig_dependencies IMPLICIT_DEPENDS CXX "${swig_source_file_fullname}")
else()
set(swig_generated_timestamp)
set(swig_custom_output
"${swig_generated_file_fullname}" ${swig_extra_generated_files})
set(swig_custom_products)
set(swig_timestamp_command)
if (use_swig_dependencies)
cmake_path(GET infile FILENAME swig_depends_filename)
set(swig_depends_filename "${workingdir}/${swig_depends_filename}.d")
list(APPEND swig_dependencies DEPFILE "${swig_depends_filename}")
set(swig_depends_flags -MF "${swig_depends_filename}" -MD)
endif()
endif()
add_custom_command(
OUTPUT ${swig_custom_output}
${swig_custom_products}
${swig_cleanup_command}
# Let's create the ${outdir} at execution time, in case dir contains $(OutDir)
COMMAND "${CMAKE_COMMAND}" -E make_directory "${workingdir}" "${outdir}" "${outfiledir}"
${swig_timestamp_command}
COMMAND "${CMAKE_COMMAND}" -E env "SWIG_LIB=${SWIG_DIR}" "${SWIG_EXECUTABLE}"
"-${SWIG_MODULE_${name}_SWIG_LANGUAGE_FLAG}"
"${swig_source_file_flags}"
-outdir "${swig_file_outdir}"
${swig_special_flags}
${swig_extra_flags}
${swig_depends_flags}
"${swig_include_dirs}"
-o "${swig_generated_file_fullname}"
"${swig_source_file_fullname}"
${swig_copy_command}
MAIN_DEPENDENCY "${swig_source_file_fullname}"
${swig_dependencies}
COMMENT "Swig compile ${infile} for ${SWIG_MODULE_${name}_SWIG_LANGUAGE_FLAG}"
COMMAND_EXPAND_LISTS)
set_source_files_properties("${swig_generated_file_fullname}" ${swig_extra_generated_files}
PROPERTIES GENERATED 1)
## add all properties for generated file to various properties
get_property (include_directories SOURCE "${infile}" PROPERTY GENERATED_INCLUDE_DIRECTORIES)
set_property (SOURCE "${swig_generated_file_fullname}" PROPERTY INCLUDE_DIRECTORIES ${include_directories} $<TARGET_GENEX_EVAL:${target_name},$<TARGET_PROPERTY:${target_name},SWIG_GENERATED_INCLUDE_DIRECTORIES>>)
get_property (compile_definitions SOURCE "${infile}" PROPERTY GENERATED_COMPILE_DEFINITIONS)
set_property (SOURCE "${swig_generated_file_fullname}" PROPERTY COMPILE_DEFINITIONS $<TARGET_GENEX_EVAL:${target_name},$<TARGET_PROPERTY:${target_name},SWIG_GENERATED_COMPILE_DEFINITIONS>> ${compile_definitions})
get_property (compile_options SOURCE "${infile}" PROPERTY GENERATED_COMPILE_OPTIONS)
set_property (SOURCE "${swig_generated_file_fullname}" PROPERTY COMPILE_OPTIONS $<TARGET_GENEX_EVAL:${target_name},$<TARGET_PROPERTY:${target_name},SWIG_GENERATED_COMPILE_OPTIONS>> ${compile_options})
if (SWIG_MODULE_${name}_SWIG_LANGUAGE_FLAG MATCHES "php")
set_property (SOURCE "${swig_generated_file_fullname}" APPEND PROPERTY INCLUDE_DIRECTORIES "${outdir}")
endif()
set(${outfiles} "${swig_generated_file_fullname}" ${swig_extra_generated_files} PARENT_SCOPE)
set(swig_timestamp "${swig_generated_timestamp}" PARENT_SCOPE)
# legacy support
set (swig_generated_file_fullname "${swig_generated_file_fullname}" PARENT_SCOPE)
endfunction()
#
# Create Swig module
#
macro(SWIG_ADD_MODULE name language)
message(DEPRECATION "SWIG_ADD_MODULE is deprecated. Use SWIG_ADD_LIBRARY instead.")
swig_add_library(${name}
LANGUAGE ${language}
TYPE MODULE
SOURCES ${ARGN})
endmacro()
function(SWIG_ADD_LIBRARY name)
set(options NO_PROXY)
set(oneValueArgs LANGUAGE
TYPE
OUTPUT_DIR
OUTFILE_DIR)
set(multiValueArgs SOURCES)
cmake_parse_arguments(_SAM "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})
if (_SAM_UNPARSED_ARGUMENTS)
message(FATAL_ERROR "SWIG_ADD_LIBRARY: ${_SAM_UNPARSED_ARGUMENTS}: unexpected arguments")
endif()
if(NOT DEFINED _SAM_LANGUAGE)
message(FATAL_ERROR "SWIG_ADD_LIBRARY: Missing LANGUAGE argument")
endif()
if(NOT DEFINED _SAM_SOURCES)
message(FATAL_ERROR "SWIG_ADD_LIBRARY: Missing SOURCES argument")
endif()
if(NOT DEFINED _SAM_TYPE)
set(_SAM_TYPE MODULE)
elseif(_SAM_TYPE STREQUAL "USE_BUILD_SHARED_LIBS")
unset(_SAM_TYPE)
endif()
cmake_policy(GET CMP0078 target_name_policy)
if (target_name_policy STREQUAL "NEW")
set (UseSWIG_TARGET_NAME_PREFERENCE STANDARD)
else()
if (NOT target_name_policy)
cmake_policy(GET_WARNING CMP0078 _cmp0078_warning)
message(AUTHOR_WARNING "${_cmp0078_warning}\n")
endif()
if (NOT DEFINED UseSWIG_TARGET_NAME_PREFERENCE)
set (UseSWIG_TARGET_NAME_PREFERENCE LEGACY)
elseif (NOT UseSWIG_TARGET_NAME_PREFERENCE MATCHES "^(LEGACY|STANDARD)$")
message (FATAL_ERROR "UseSWIG_TARGET_NAME_PREFERENCE: ${UseSWIG_TARGET_NAME_PREFERENCE}: invalid value. 'LEGACY' or 'STANDARD' is expected.")
endif()
endif()
if (NOT DEFINED UseSWIG_MODULE_VERSION)
set (UseSWIG_MODULE_VERSION 1)
elseif (NOT UseSWIG_MODULE_VERSION MATCHES "^(1|2)$")
message (FATAL_ERROR "UseSWIG_MODULE_VERSION: ${UseSWIG_MODULE_VERSION}: invalid value. 1 or 2 is expected.")
endif()
set (SWIG_MODULE_${name}_NOPROXY ${_SAM_NO_PROXY})
swig_module_initialize(${name} ${_SAM_LANGUAGE})
# compute real target name.
if (UseSWIG_TARGET_NAME_PREFERENCE STREQUAL "LEGACY" AND
SWIG_MODULE_${name}_LANGUAGE STREQUAL "PYTHON" AND NOT SWIG_MODULE_${name}_NOPROXY)
# swig will produce a module.py containing an 'import _modulename' statement,
# which implies having a corresponding _modulename.so (*NIX), _modulename.pyd (Win32),
# unless the -noproxy flag is used
set(target_name "_${name}")
else()
set(target_name "${name}")
endif()
if (TARGET ${target_name})
# a target with same name is already defined.
# call NOW add_library command to raise the most useful error message
add_library(${target_name})
return()
endif()
set (workingdir "${CMAKE_CURRENT_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/${target_name}.dir")
# set special variable to pass extra information to command SWIG_ADD_SOURCE_TO_MODULE
# which cannot be changed due to legacy compatibility
set (SWIG_WORKING_DIR "${workingdir}")
set (SWIG_TARGET_NAME "${target_name}")
set (outputdir "${_SAM_OUTPUT_DIR}")
if (NOT _SAM_OUTPUT_DIR)
if (CMAKE_SWIG_OUTDIR)
set (outputdir "${CMAKE_SWIG_OUTDIR}")
else()
if (UseSWIG_MODULE_VERSION VERSION_GREATER 1)
set (outputdir "${workingdir}/${_SAM_LANGUAGE}.files")
else()
set (outputdir "${CMAKE_CURRENT_BINARY_DIR}")
endif()
endif()
endif()
set (outfiledir "${_SAM_OUTFILE_DIR}")
if(NOT _SAM_OUTFILE_DIR)
if (SWIG_OUTFILE_DIR)
set (outfiledir "${SWIG_OUTFILE_DIR}")
else()
if (_SAM_OUTPUT_DIR OR CMAKE_SWIG_OUTDIR)
set (outfiledir "${outputdir}")
else()
set (outfiledir "${workingdir}")
endif()
endif()
endif()
# set again, locally, predefined variables to ensure compatibility
# with command SWIG_ADD_SOURCE_TO_MODULE
set(CMAKE_SWIG_OUTDIR "${outputdir}")
set(SWIG_OUTFILE_DIR "${outfiledir}")
# See if the user has specified source extensions for swig files?
if (NOT DEFINED SWIG_SOURCE_FILE_EXTENSIONS)
# Assume the default (*.i) file extension for Swig source files
set(SWIG_SOURCE_FILE_EXTENSIONS ".i")
endif()
if (CMAKE_GENERATOR MATCHES "Make|Ninja|Xcode|Visual Studio (1[1-9]|[2-9][0-9])")
# For Makefiles, Ninja, Xcode and Visual Studio generators,
# use SWIG generated dependencies if requested
if (NOT DEFINED SWIG_USE_SWIG_DEPENDENCIES)
set (SWIG_USE_SWIG_DEPENDENCIES OFF)
endif()
else()
set (SWIG_USE_SWIG_DEPENDENCIES OFF)
endif()
# Generate a regex out of file extensions.
string(REGEX REPLACE "([$^.*+?|()-])" "\\\\\\1" swig_source_ext_regex "${SWIG_SOURCE_FILE_EXTENSIONS}")
list (JOIN swig_source_ext_regex "|" swig_source_ext_regex)
string (PREPEND swig_source_ext_regex "(")
string (APPEND swig_source_ext_regex ")$")
set(swig_dot_i_sources ${_SAM_SOURCES})
list(FILTER swig_dot_i_sources INCLUDE REGEX ${swig_source_ext_regex})
if (NOT swig_dot_i_sources)
message(FATAL_ERROR "SWIG_ADD_LIBRARY: no SWIG interface files specified")
endif()
set(swig_other_sources ${_SAM_SOURCES})
list(REMOVE_ITEM swig_other_sources ${swig_dot_i_sources})
set(swig_generated_sources)
set(swig_generated_timestamps)
set(swig_generated_outdirs "${outputdir}")
list(LENGTH swig_dot_i_sources swig_sources_count)
if (swig_sources_count GREATER "1")
# option -interface cannot be used
set(SWIG_USE_INTERFACE FALSE)
else()
set(SWIG_USE_INTERFACE TRUE)
endif()
foreach(swig_it IN LISTS swig_dot_i_sources)
SWIG_ADD_SOURCE_TO_MODULE(${name} swig_generated_source "${swig_it}")
list (APPEND swig_generated_sources "${swig_generated_source}")
if(swig_timestamp)
list (APPEND swig_generated_timestamps "${swig_timestamp}")
endif()
get_source_file_property(swig_source_file_outdir "${swig_it}" OUTPUT_DIR)
if (swig_source_file_outdir)
list (APPEND swig_generated_outdirs "${swig_source_file_outdir}")
endif()
endforeach()
list(REMOVE_DUPLICATES swig_generated_outdirs)
set_property (DIRECTORY APPEND PROPERTY
ADDITIONAL_CLEAN_FILES ${swig_generated_sources} ${swig_generated_timestamps})
if (UseSWIG_MODULE_VERSION VERSION_GREATER 1)
set_property (DIRECTORY APPEND PROPERTY ADDITIONAL_CLEAN_FILES ${swig_generated_outdirs})
endif()
add_library(${target_name}
${_SAM_TYPE}
${swig_generated_sources}
${swig_other_sources})
if(swig_generated_timestamps)
# see IMPLICIT_DEPENDS above
add_custom_target(${name}_swig_compilation DEPENDS ${swig_generated_timestamps})
add_dependencies(${target_name} ${name}_swig_compilation)
endif()
if(_SAM_TYPE STREQUAL "MODULE")
set_target_properties(${target_name} PROPERTIES NO_SONAME ON)
endif()
string(TOLOWER "${_SAM_LANGUAGE}" swig_lowercase_language)
if (swig_lowercase_language STREQUAL "octave")
set_target_properties(${target_name} PROPERTIES PREFIX "")
set_target_properties(${target_name} PROPERTIES SUFFIX ".oct")
elseif (swig_lowercase_language STREQUAL "go")
set_target_properties(${target_name} PROPERTIES PREFIX "")
elseif (swig_lowercase_language STREQUAL "java")
# In java you want:
# System.loadLibrary("LIBRARY");
# then JNI will look for a library whose name is platform dependent, namely
# MacOS : libLIBRARY.jnilib
# Windows: LIBRARY.dll
# Linux : libLIBRARY.so
if (APPLE)
set_target_properties (${target_name} PROPERTIES SUFFIX ".jnilib")
endif()
if ((WIN32 AND MINGW) OR CYGWIN OR CMAKE_SYSTEM_NAME STREQUAL "MSYS")
set_target_properties(${target_name} PROPERTIES PREFIX "")
endif()
elseif (swig_lowercase_language STREQUAL "lua")
if(_SAM_TYPE STREQUAL "MODULE")
set_target_properties(${target_name} PROPERTIES PREFIX "")
endif()
elseif (swig_lowercase_language STREQUAL "python")
if (UseSWIG_TARGET_NAME_PREFERENCE STREQUAL "STANDARD" AND NOT SWIG_MODULE_${name}_NOPROXY)
# swig will produce a module.py containing an 'import _modulename' statement,
# which implies having a corresponding _modulename.so (*NIX), _modulename.pyd (Win32),
# unless the -noproxy flag is used
set_target_properties(${target_name} PROPERTIES PREFIX "_")
else()
set_target_properties(${target_name} PROPERTIES PREFIX "")
endif()
# Python extension modules on Windows must have the extension ".pyd"
# instead of ".dll" as of Python 2.5. Older python versions do support
# this suffix.
# http://docs.python.org/whatsnew/ports.html#SECTION0001510000000000000000
# <quote>
# Windows: .dll is no longer supported as a filename extension for extension modules.
# .pyd is now the only filename extension that will be searched for.
# </quote>
if(WIN32 AND NOT CYGWIN)
set_target_properties(${target_name} PROPERTIES SUFFIX ".pyd")
endif()
elseif (swig_lowercase_language STREQUAL "r")
set_target_properties(${target_name} PROPERTIES PREFIX "")
elseif (swig_lowercase_language STREQUAL "ruby")
# In ruby you want:
# require 'LIBRARY'
# then ruby will look for a library whose name is platform dependent, namely
# MacOS : LIBRARY.bundle
# Windows: LIBRARY.dll
# Linux : LIBRARY.so
set_target_properties (${target_name} PROPERTIES PREFIX "")
if (APPLE)
set_target_properties (${target_name} PROPERTIES SUFFIX ".bundle")
endif ()
elseif (swig_lowercase_language STREQUAL "perl" OR swig_lowercase_language STREQUAL "perl5")
# assume empty prefix because we expect the module to be dynamically loaded
set_target_properties (${target_name} PROPERTIES PREFIX "")
if (APPLE)
set_target_properties (${target_name} PROPERTIES SUFFIX ".dylib")
endif ()
elseif (swig_lowercase_language STREQUAL "fortran")
# Do *not* override the target's library prefix
elseif (swig_lowercase_language STREQUAL "csharp")
cmake_policy(GET CMP0122 csharp_naming_policy)
if (csharp_naming_policy STREQUAL "NEW")
# Do *not* override the target's library prefix
else()
if (NOT csharp_naming_policy)
cmake_policy(GET_WARNING CMP0122 _cmp0122_warning)
message(AUTHOR_WARNING "${_cmp0122_warning}\n")
endif()
set_target_properties (${target_name} PROPERTIES PREFIX "")
endif()
if (APPLE)
set_target_properties (${target_name} PROPERTIES SUFFIX ".dylib")
endif ()
else()
# assume empty prefix because we expect the module to be dynamically loaded
set_target_properties (${target_name} PROPERTIES PREFIX "")
endif ()
# target property SWIG_SUPPORT_FILES_DIRECTORY specify output directories of support files
set_property (TARGET ${target_name} PROPERTY SWIG_SUPPORT_FILES_DIRECTORY ${swig_generated_outdirs})
# target property SWIG_SUPPORT_FILES lists principal proxy support files
if (NOT SWIG_MODULE_${name}_NOPROXY)
string(TOUPPER "${_SAM_LANGUAGE}" swig_uppercase_language)
set(swig_all_support_files)
foreach (swig_it IN LISTS SWIG_${swig_uppercase_language}_EXTRA_FILE_EXTENSIONS)
set (swig_support_files ${swig_generated_sources})
list (FILTER swig_support_files INCLUDE REGEX ".*${swig_it}$")
list(APPEND swig_all_support_files ${swig_support_files})
endforeach()
if (swig_all_support_files)
list(REMOVE_DUPLICATES swig_all_support_files)
endif()
set_property (TARGET ${target_name} PROPERTY SWIG_SUPPORT_FILES ${swig_all_support_files})
endif()
# to ensure legacy behavior, export some variables
set (SWIG_MODULE_${name}_LANGUAGE "${SWIG_MODULE_${name}_LANGUAGE}" PARENT_SCOPE)
set (SWIG_MODULE_${name}_SWIG_LANGUAGE_FLAG "${SWIG_MODULE_${name}_SWIG_LANGUAGE_FLAG}" PARENT_SCOPE)
set (SWIG_MODULE_${name}_REAL_NAME "${target_name}" PARENT_SCOPE)
set (SWIG_MODULE_${name}_NOPROXY "${SWIG_MODULE_${name}_NOPROXY}" PARENT_SCOPE)
set (SWIG_MODULE_${name}_EXTRA_FLAGS "${SWIG_MODULE_${name}_EXTRA_FLAGS}" PARENT_SCOPE)
# the last one is a bit crazy but it is documented, so...
# NOTA: works as expected if only ONE input file is specified
set (swig_generated_file_fullname "${swig_generated_file_fullname}" PARENT_SCOPE)
endfunction()
#
# Like TARGET_LINK_LIBRARIES but for swig modules
#
function(SWIG_LINK_LIBRARIES name)
if (UseSWIG_TARGET_NAME_PREFERENCE STREQUAL "STANDARD")
message(DEPRECATION "SWIG_LINK_LIBRARIES is deprecated. Use TARGET_LINK_LIBRARIES instead.")
target_link_libraries(${name} ${ARGN})
else()
if(SWIG_MODULE_${name}_REAL_NAME)
target_link_libraries(${SWIG_MODULE_${name}_REAL_NAME} ${ARGN})
else()
message(SEND_ERROR "Cannot find Swig library \"${name}\".")
endif()
endif()
endfunction()
cmake_policy(POP)
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