1 # Distributed under the OSI-approved BSD 3-Clause License. See accompanying
2 # file Copyright.txt or https://cmake.org/licensing for details.
4 #[=======================================================================[.rst:
8 Finds Matlab or Matlab Compiler Runtime (MCR) and provides Matlab tools,
9 libraries and compilers to CMake.
11 This package primary purpose is to find the libraries associated with Matlab
12 or the MCR in order to be able to build Matlab extensions (mex files). It
15 * to run specific commands in Matlab in case Matlab is available
16 * for declaring Matlab unit test
17 * to retrieve various information from Matlab (mex extensions, versions and
20 .. versionadded:: 3.12
21 Added Matlab Compiler Runtime (MCR) support.
23 The module supports the following components:
25 * ``ENG_LIBRARY`` and ``MAT_LIBRARY``: respectively the ``ENG`` and ``MAT``
27 * ``MAIN_PROGRAM`` the Matlab binary program. Note that this component is not
28 available on the MCR version, and will yield an error if the MCR is found
29 instead of the regular Matlab installation.
30 * ``MEX_COMPILER`` the MEX compiler.
31 * ``MCC_COMPILER`` the MCC compiler, included with the Matlab Compiler add-on.
32 * ``SIMULINK`` the Simulink environment.
35 Added the ``MAT_LIBRARY`` component.
37 .. versionadded:: 3.13
38 Added the ``ENGINE_LIBRARY``, ``DATAARRAY_LIBRARY`` and ``MCC_COMPILER``
41 .. versionchanged:: 3.14
42 Removed the ``MX_LIBRARY``, ``ENGINE_LIBRARY`` and ``DATAARRAY_LIBRARY``
43 components. These libraries are found unconditionally.
47 The version given to the :command:`find_package` directive is the Matlab
48 **version**, which should not be confused with the Matlab *release* name
50 The :command:`matlab_get_version_from_release_name` and
51 :command:`matlab_get_release_name_from_version` provide a mapping
52 between the release name and the version.
54 The variable :variable:`Matlab_ROOT_DIR` may be specified in order to give
55 the path of the desired Matlab version. Otherwise, the behavior is platform
58 * Windows: The installed versions of Matlab/MCR are retrieved from the
60 * OS X: The installed versions of Matlab/MCR are given by the MATLAB
61 default installation paths in ``/Application``. If no such application is
62 found, it falls back to the one that might be accessible from the ``PATH``.
63 * Unix: The desired Matlab should be accessible from the ``PATH``. This does
64 not work for MCR installation and :variable:`Matlab_ROOT_DIR` should be
65 specified on this platform.
67 Additional information is provided when :variable:`MATLAB_FIND_DEBUG` is set.
68 When a Matlab/MCR installation is found automatically and the ``MATLAB_VERSION``
69 is not given, the version is queried from Matlab directly (on Windows this
70 may pop up a Matlab window) or from the MCR installation.
72 The mapping of the release names and the version of Matlab is performed by
73 defining pairs (name, version). The variable
74 :variable:`MATLAB_ADDITIONAL_VERSIONS` may be provided before the call to
75 the :command:`find_package` in order to handle additional versions.
77 A Matlab scripts can be added to the set of tests using the
78 :command:`matlab_add_unit_test`. By default, the Matlab unit test framework
79 will be used (>= 2013a) to run this script, but regular ``.m`` files
80 returning an exit code can be used as well (0 indicating a success).
82 Module Input Variables
83 ^^^^^^^^^^^^^^^^^^^^^^
85 Users or projects may set the following variables to configure the module
88 :variable:`Matlab_ROOT_DIR`
89 the root of the Matlab installation.
90 :variable:`MATLAB_FIND_DEBUG`
91 outputs debug information
92 :variable:`MATLAB_ADDITIONAL_VERSIONS`
93 additional versions of Matlab for the automatic retrieval of the installed
96 Variables defined by the module
97 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
103 ``TRUE`` if the Matlab installation is found, ``FALSE``
104 otherwise. All variable below are defined if Matlab is found.
106 the final root of the Matlab installation determined by the FindMatlab
108 ``Matlab_MAIN_PROGRAM``
109 the Matlab binary program. Available only if the component ``MAIN_PROGRAM``
110 is given in the :command:`find_package` directive.
111 ``Matlab_INCLUDE_DIRS``
112 the path of the Matlab libraries headers
113 ``Matlab_MEX_LIBRARY``
114 library for mex, always available.
115 ``Matlab_MX_LIBRARY``
116 mx library of Matlab (arrays), always available.
117 ``Matlab_ENG_LIBRARY``
118 Matlab engine library. Available only if the component ``ENG_LIBRARY``
120 ``Matlab_MAT_LIBRARY``
121 Matlab matrix library. Available only if the component ``MAT_LIBRARY``
123 ``Matlab_ENGINE_LIBRARY``
124 .. versionadded:: 3.13
126 Matlab C++ engine library, always available for R2018a and newer.
127 ``Matlab_DATAARRAY_LIBRARY``
128 .. versionadded:: 3.13
130 Matlab C++ data array library, always available for R2018a and newer.
132 the whole set of libraries of Matlab
133 ``Matlab_MEX_COMPILER``
134 the mex compiler of Matlab. Currently not used.
135 Available only if the component ``MEX_COMPILER`` is requested.
136 ``Matlab_MCC_COMPILER``
137 .. versionadded:: 3.13
139 the mcc compiler of Matlab. Included with the Matlab Compiler add-on.
140 Available only if the component ``MCC_COMPILER`` is requested.
145 ``Matlab_MEX_EXTENSION``
146 the extension of the mex files for the current platform (given by Matlab).
148 the location of the root of the Matlab installation found. If this value
149 is changed by the user, the result variables are recomputed.
154 :command:`matlab_get_version_from_release_name`
155 returns the version from the release name
156 :command:`matlab_get_release_name_from_version`
157 returns the release name from the Matlab version
162 :command:`matlab_add_mex`
163 adds a target compiling a MEX file.
164 :command:`matlab_add_unit_test`
165 adds a Matlab unit test file as a test to the project.
166 :command:`matlab_extract_all_installed_versions_from_registry`
167 parses the registry for all Matlab versions. Available on Windows only.
168 The part of the registry parsed is dependent on the host processor
169 :command:`matlab_get_all_valid_matlab_roots_from_registry`
170 returns all the possible Matlab or MCR paths, according to a previously
171 given list. Only the existing/accessible paths are kept. This is mainly
172 useful for the searching all possible Matlab installation.
173 :command:`matlab_get_mex_suffix`
174 returns the suffix to be used for the mex files
175 (platform/architecture dependent)
176 :command:`matlab_get_version_from_matlab_run`
177 returns the version of Matlab/MCR, given the full directory of the Matlab/MCR
184 **Symbol clash in a MEX target**
185 By default, every symbols inside a MEX
186 file defined with the command :command:`matlab_add_mex` have hidden
187 visibility, except for the entry point. This is the default behavior of
188 the MEX compiler, which lowers the risk of symbol collision between the
189 libraries shipped with Matlab, and the libraries to which the MEX file is
190 linking to. This is also the default on Windows platforms.
192 However, this is not sufficient in certain case, where for instance your
193 MEX file is linking against libraries that are already loaded by Matlab,
194 even if those libraries have different SONAMES.
195 A possible solution is to hide the symbols of the libraries to which the
196 MEX target is linking to. This can be achieved in GNU GCC compilers with
197 the linker option ``-Wl,--exclude-libs,ALL``.
199 **Tests using GPU resources**
200 in case your MEX file is using the GPU and
201 in order to be able to run unit tests on this MEX file, the GPU resources
202 should be properly released by Matlab. A possible solution is to make
203 Matlab aware of the use of the GPU resources in the session, which can be
204 performed by a command such as ``D = gpuDevice()`` at the beginning of
205 the test script (or via a fixture).
211 .. variable:: Matlab_ROOT_DIR
213 The root folder of the Matlab installation. If set before the call to
214 :command:`find_package`, the module will look for the components in that
215 path. If not set, then an automatic search of Matlab
216 will be performed. If set, it should point to a valid version of Matlab.
218 .. variable:: MATLAB_FIND_DEBUG
220 If set, the lookup of Matlab and the intermediate configuration steps are
221 outputted to the console.
223 .. variable:: MATLAB_ADDITIONAL_VERSIONS
225 If set, specifies additional versions of Matlab that may be looked for.
226 The variable should be a list of strings, organized by pairs of release
227 name and versions, such as follows::
229 set(MATLAB_ADDITIONAL_VERSIONS
230 "release_name1=corresponding_version1"
231 "release_name2=corresponding_version2"
237 set(MATLAB_ADDITIONAL_VERSIONS
242 The order of entries in this list matters when several versions of
243 Matlab are installed. The priority is set according to the ordering in
245 #]=======================================================================]
248 cmake_policy(SET CMP0057 NEW) # if IN_LIST
250 set(_FindMatlab_SELF_DIR "${CMAKE_CURRENT_LIST_DIR}")
252 include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake)
253 include(CheckCXXCompilerFlag)
254 include(CheckCCompilerFlag)
257 # The currently supported versions. Other version can be added by the user by
258 # providing MATLAB_ADDITIONAL_VERSIONS
259 if(NOT MATLAB_ADDITIONAL_VERSIONS)
260 set(MATLAB_ADDITIONAL_VERSIONS)
263 set(MATLAB_VERSIONS_MAPPING
288 ${MATLAB_ADDITIONAL_VERSIONS}
292 # temporary folder for all Matlab runs
293 set(_matlab_temporary_folder ${CMAKE_BINARY_DIR}/Matlab)
295 if(NOT EXISTS "${_matlab_temporary_folder}")
296 file(MAKE_DIRECTORY "${_matlab_temporary_folder}")
299 #[=======================================================================[.rst:
300 .. command:: matlab_get_version_from_release_name
302 Returns the version of Matlab (17.58) from a release name (R2017k)
303 #]=======================================================================]
304 macro(matlab_get_version_from_release_name release_name version_name)
306 string(REGEX MATCHALL "${release_name}=([0-9]+\\.?[0-9]*)" _matched ${MATLAB_VERSIONS_MAPPING})
308 set(${version_name} "")
309 if(NOT _matched STREQUAL "")
310 set(${version_name} ${CMAKE_MATCH_1})
312 message(WARNING "[MATLAB] The release name ${release_name} is not registered")
322 #[=======================================================================[.rst:
323 .. command:: matlab_get_release_name_from_version
325 Returns the release name (R2017k) from the version of Matlab (17.58)
326 #]=======================================================================]
327 macro(matlab_get_release_name_from_version version release_name)
329 set(${release_name} "")
330 foreach(_var IN LISTS MATLAB_VERSIONS_MAPPING)
331 string(REGEX MATCHALL "(.+)=${version}" _matched ${_var})
332 if(NOT _matched STREQUAL "")
333 set(${release_name} ${CMAKE_MATCH_1})
340 if(${release_name} STREQUAL "")
341 message(WARNING "[MATLAB] The version ${version} is not registered")
350 # extracts all the supported release names (R2017k...) of Matlab
352 macro(matlab_get_supported_releases list_releases)
353 set(${list_releases})
354 foreach(_var IN LISTS MATLAB_VERSIONS_MAPPING)
355 string(REGEX MATCHALL "(.+)=([0-9]+\\.?[0-9]*)" _matched ${_var})
356 if(NOT _matched STREQUAL "")
357 list(APPEND ${list_releases} ${CMAKE_MATCH_1})
367 # extracts all the supported versions of Matlab
369 macro(matlab_get_supported_versions list_versions)
370 set(${list_versions})
371 foreach(_var IN LISTS MATLAB_VERSIONS_MAPPING)
372 string(REGEX MATCHALL "(.+)=([0-9]+\\.?[0-9]*)" _matched ${_var})
373 if(NOT _matched STREQUAL "")
374 list(APPEND ${list_versions} ${CMAKE_MATCH_2})
383 #[=======================================================================[.rst:
384 .. command:: matlab_extract_all_installed_versions_from_registry
386 This function parses the registry and founds the Matlab versions that are
387 installed. The found versions are returned in `matlab_versions`.
388 Set `win64` to `TRUE` if the 64 bit version of Matlab should be looked for
389 The returned list contains all versions under
390 ``HKLM\\SOFTWARE\\Mathworks\\MATLAB`` and
391 ``HKLM\\SOFTWARE\\Mathworks\\MATLAB Runtime`` or an empty list in case an
392 error occurred (or nothing found).
396 Only the versions are provided. No check is made over the existence of the
397 installation referenced in the registry,
399 #]=======================================================================]
400 function(matlab_extract_all_installed_versions_from_registry win64 matlab_versions)
402 if(NOT CMAKE_HOST_WIN32)
403 message(FATAL_ERROR "[MATLAB] This macro can only be called by a windows host (call to reg.exe)")
406 if(${win64} AND CMAKE_HOST_SYSTEM_PROCESSOR MATCHES "64")
407 set(APPEND_REG "/reg:64")
409 set(APPEND_REG "/reg:32")
412 set(matlabs_from_registry)
414 foreach(_installation_type IN ITEMS "MATLAB" "MATLAB Runtime" "MATLAB Compiler Runtime")
416 # /reg:64 should be added on 64 bits capable OSs in order to enable the
417 # redirection of 64 bits applications
419 COMMAND reg query "HKEY_LOCAL_MACHINE\\SOFTWARE\\Mathworks\\${_installation_type}" /f * /k ${APPEND_REG}
420 RESULT_VARIABLE resultMatlab
421 OUTPUT_VARIABLE varMatlab
422 ERROR_VARIABLE errMatlab
427 if(resultMatlab EQUAL 0)
430 REGEX MATCHALL "${_installation_type}\\\\([0-9]+(\\.[0-9]+)?)"
431 matlab_versions_regex ${varMatlab})
433 foreach(match IN LISTS matlab_versions_regex)
435 REGEX MATCH "${_installation_type}\\\\(([0-9]+)(\\.([0-9]+))?)"
436 current_match ${match})
438 set(_matlab_current_version ${CMAKE_MATCH_1})
439 set(current_matlab_version_major ${CMAKE_MATCH_2})
440 set(current_matlab_version_minor ${CMAKE_MATCH_4})
441 if(NOT current_matlab_version_minor)
442 set(current_matlab_version_minor "0")
445 list(APPEND matlabs_from_registry ${_matlab_current_version})
446 unset(_matlab_current_version)
452 if(matlabs_from_registry)
453 list(REMOVE_DUPLICATES matlabs_from_registry)
454 list(SORT matlabs_from_registry)
455 list(REVERSE matlabs_from_registry)
458 set(${matlab_versions} ${matlabs_from_registry} PARENT_SCOPE)
465 macro(extract_matlab_versions_from_registry_brute_force matlab_versions)
466 # get the supported versions
467 set(matlab_supported_versions)
468 matlab_get_supported_versions(matlab_supported_versions)
471 # this is a manual population of the versions we want to look for
472 # this can be done as is, but preferably with the call to
473 # matlab_get_supported_versions and variable
475 # populating the versions we want to look for
476 # set(matlab_supported_versions)
479 # set(matlab_major 7)
480 # foreach(current_matlab_minor RANGE 4 20)
481 # list(APPEND matlab_supported_versions "${matlab_major}.${current_matlab_minor}")
482 # endforeach(current_matlab_minor)
485 # set(matlab_major 8)
486 # foreach(current_matlab_minor RANGE 0 5)
487 # list(APPEND matlab_supported_versions "${matlab_major}.${current_matlab_minor}")
488 # endforeach(current_matlab_minor)
490 # # taking into account the possible additional versions provided by the user
491 # if(DEFINED MATLAB_ADDITIONAL_VERSIONS)
492 # list(APPEND matlab_supported_versions MATLAB_ADDITIONAL_VERSIONS)
495 # we order from more recent to older
496 if(matlab_supported_versions)
497 list(REMOVE_DUPLICATES matlab_supported_versions)
498 list(SORT matlab_supported_versions)
499 list(REVERSE matlab_supported_versions)
502 set(${matlab_versions} ${matlab_supported_versions})
508 #[=======================================================================[.rst:
509 .. command:: matlab_get_all_valid_matlab_roots_from_registry
511 Populates the Matlab root with valid versions of Matlab or
512 Matlab Runtime (MCR).
513 The returned matlab_roots is organized in triplets
514 ``(type,version_number,matlab_root_path)``, where ``type``
515 indicates either ``MATLAB`` or ``MCR``.
519 matlab_get_all_valid_matlab_roots_from_registry(
524 the versions of each of the Matlab or MCR installations
526 the location of each of the Matlab or MCR installations
527 #]=======================================================================]
528 function(matlab_get_all_valid_matlab_roots_from_registry matlab_versions matlab_roots)
530 # The matlab_versions comes either from
531 # extract_matlab_versions_from_registry_brute_force or
532 # matlab_extract_all_installed_versions_from_registry.
534 set(_matlab_roots_list )
535 # check for Matlab installations
536 foreach(_matlab_current_version ${matlab_versions})
537 get_filename_component(
539 "[HKEY_LOCAL_MACHINE\\SOFTWARE\\MathWorks\\MATLAB\\${_matlab_current_version};MATLABROOT]"
542 if(EXISTS "${current_MATLAB_ROOT}")
543 list(APPEND _matlab_roots_list "MATLAB" ${_matlab_current_version} ${current_MATLAB_ROOT})
548 # Check for MCR installations
549 foreach(_matlab_current_version ${matlab_versions})
550 get_filename_component(
552 "[HKEY_LOCAL_MACHINE\\SOFTWARE\\MathWorks\\MATLAB Runtime\\${_matlab_current_version};MATLABROOT]"
556 string(REPLACE "." "" _matlab_current_version_without_dot "${_matlab_current_version}")
558 if(EXISTS "${current_MATLAB_ROOT}")
559 list(APPEND _matlab_roots_list "MCR" ${_matlab_current_version} "${current_MATLAB_ROOT}/v${_matlab_current_version_without_dot}")
564 # Check for old MCR installations
565 foreach(_matlab_current_version ${matlab_versions})
566 get_filename_component(
568 "[HKEY_LOCAL_MACHINE\\SOFTWARE\\MathWorks\\MATLAB Compiler Runtime\\${_matlab_current_version};MATLABROOT]"
572 string(REPLACE "." "" _matlab_current_version_without_dot "${_matlab_current_version}")
574 if(EXISTS "${current_MATLAB_ROOT}")
575 list(APPEND _matlab_roots_list "MCR" ${_matlab_current_version} "${current_MATLAB_ROOT}/v${_matlab_current_version_without_dot}")
579 set(${matlab_roots} ${_matlab_roots_list} PARENT_SCOPE)
582 #[=======================================================================[.rst:
583 .. command:: matlab_get_mex_suffix
585 Returns the extension of the mex files (the suffixes).
586 This function should not be called before the appropriate Matlab root has
591 matlab_get_mex_suffix(
596 the root of the Matlab/MCR installation
598 the variable name in which the suffix will be returned.
599 #]=======================================================================]
600 function(matlab_get_mex_suffix matlab_root mex_suffix)
602 # todo setup the extension properly. Currently I do not know if this is
603 # sufficient for all win32 distributions.
604 # there is also CMAKE_EXECUTABLE_SUFFIX that could be tweaked
605 set(mexext_suffix "")
607 list(APPEND mexext_suffix ".bat")
610 # we first try without suffix, since cmake does not understand a list with
611 # one empty string element
613 Matlab_MEXEXTENSIONS_PROG
615 PATHS ${matlab_root}/bin
616 DOC "Matlab MEX extension provider"
620 foreach(current_mexext_suffix IN LISTS mexext_suffix)
621 if(NOT DEFINED Matlab_MEXEXTENSIONS_PROG OR NOT Matlab_MEXEXTENSIONS_PROG)
622 # this call should populate the cache automatically
624 Matlab_MEXEXTENSIONS_PROG
625 "mexext${current_mexext_suffix}"
626 PATHS ${matlab_root}/bin
627 DOC "Matlab MEX extension provider"
631 endforeach(current_mexext_suffix)
632 if(MATLAB_FIND_DEBUG)
633 message(STATUS "[MATLAB] Determining mex files extensions from '${matlab_root}/bin' with program '${Matlab_MEXEXTENSIONS_PROG}'")
636 # the program has been found?
637 if((NOT Matlab_MEXEXTENSIONS_PROG) OR (NOT EXISTS ${Matlab_MEXEXTENSIONS_PROG}))
638 if(MATLAB_FIND_DEBUG)
639 message(WARNING "[MATLAB] Cannot found mexext program. Matlab root is ${matlab_root}")
641 unset(Matlab_MEXEXTENSIONS_PROG CACHE)
645 set(_matlab_mex_extension)
649 set(devnull INPUT_FILE /dev/null)
651 set(devnull INPUT_FILE NUL)
655 # this environment variable is used to determine the arch on Windows
656 if(CMAKE_SIZEOF_VOID_P EQUAL 8)
657 set(ENV{MATLAB_ARCH} "win64")
659 set(ENV{MATLAB_ARCH} "win32")
663 # this is the preferred way. If this does not work properly (eg. MCR on Windows), then we use our own knowledge
665 COMMAND ${Matlab_MEXEXTENSIONS_PROG}
666 OUTPUT_VARIABLE _matlab_mex_extension
667 ERROR_VARIABLE _matlab_mex_extension_error
668 OUTPUT_STRIP_TRAILING_WHITESPACE
670 unset(ENV{MATLAB_ARCH})
672 if(_matlab_mex_extension_error)
674 # this is only for intel architecture
675 if(CMAKE_SIZEOF_VOID_P EQUAL 8)
676 set(_matlab_mex_extension "mexw64")
678 set(_matlab_mex_extension "mexw32")
683 string(STRIP "${_matlab_mex_extension}" _matlab_mex_extension)
684 if(MATLAB_FIND_DEBUG)
685 message(STATUS "[MATLAB] '${Matlab_MEXEXTENSIONS_PROG}' : determined extension '${_matlab_mex_extension}' and error string is '${_matlab_mex_extension_error}'")
688 unset(Matlab_MEXEXTENSIONS_PROG CACHE)
689 set(${mex_suffix} ${_matlab_mex_extension} PARENT_SCOPE)
695 #[=======================================================================[.rst:
696 .. command:: matlab_get_version_from_matlab_run
698 This function runs Matlab program specified on arguments and extracts its
699 version. If the path provided for the Matlab installation points to an MCR
700 installation, the version is extracted from the installed files.
704 matlab_get_version_from_matlab_run(
706 matlab_list_versions)
708 ``matlab_binary_path``
709 the location of the `matlab` binary executable
710 ``matlab_list_versions``
711 the version extracted from Matlab
712 #]=======================================================================]
713 function(matlab_get_version_from_matlab_run matlab_binary_program matlab_list_versions)
715 set(${matlab_list_versions} "" PARENT_SCOPE)
717 if(MATLAB_FIND_DEBUG)
718 message(STATUS "[MATLAB] Determining the version of Matlab from ${matlab_binary_program}")
721 if(EXISTS "${_matlab_temporary_folder}/matlabVersionLog.cmaketmp")
722 if(MATLAB_FIND_DEBUG)
723 message(STATUS "[MATLAB] Removing previous ${_matlab_temporary_folder}/matlabVersionLog.cmaketmp file")
725 file(REMOVE "${_matlab_temporary_folder}/matlabVersionLog.cmaketmp")
729 # the log file is needed since on windows the command executes in a new
730 # window and it is not possible to get back the answer of Matlab
731 # the -wait command is needed on windows, otherwise the call returns
732 # immediately after the program launches itself.
734 set(_matlab_additional_commands "-wait")
739 set(devnull INPUT_FILE /dev/null)
741 set(devnull INPUT_FILE NUL)
744 # timeout set to 120 seconds, in case it does not start
745 # note as said before OUTPUT_VARIABLE cannot be used in a platform
746 # independent manner however, not setting it would flush the output of Matlab
747 # in the current console (unix variant)
749 COMMAND "${matlab_binary_program}" -nosplash -nojvm ${_matlab_additional_commands} -logfile "matlabVersionLog.cmaketmp" -nodesktop -nodisplay -r "version, exit"
750 OUTPUT_VARIABLE _matlab_version_from_cmd_dummy
751 RESULT_VARIABLE _matlab_result_version_call
752 ERROR_VARIABLE _matlab_result_version_call_error
754 WORKING_DIRECTORY "${_matlab_temporary_folder}"
758 if(_matlab_result_version_call MATCHES "timeout")
759 if(MATLAB_FIND_DEBUG)
760 message(WARNING "[MATLAB] Unable to determine the version of Matlab."
761 " Matlab call timed out after 120 seconds.")
766 if(${_matlab_result_version_call})
767 if(MATLAB_FIND_DEBUG)
768 message(WARNING "[MATLAB] Unable to determine the version of Matlab. Matlab call returned with error ${_matlab_result_version_call}.")
771 elseif(NOT EXISTS "${_matlab_temporary_folder}/matlabVersionLog.cmaketmp")
772 if(MATLAB_FIND_DEBUG)
773 message(WARNING "[MATLAB] Unable to determine the version of Matlab. The log file does not exist.")
778 # if successful, read back the log
779 file(READ "${_matlab_temporary_folder}/matlabVersionLog.cmaketmp" _matlab_version_from_cmd)
780 file(REMOVE "${_matlab_temporary_folder}/matlabVersionLog.cmaketmp")
783 string(FIND "${_matlab_version_from_cmd}" "ans" index)
786 if(MATLAB_FIND_DEBUG)
787 message(WARNING "[MATLAB] Cannot find the version of Matlab returned by the run.")
791 set(matlab_list_of_all_versions_tmp)
793 string(SUBSTRING "${_matlab_version_from_cmd}" ${index} -1 substring_ans)
795 REGEX MATCHALL "ans[\r\n\t ]*=[\r\n\t ]*'?([0-9]+(\\.[0-9]+)?)"
796 matlab_versions_regex
798 foreach(match IN LISTS matlab_versions_regex)
800 REGEX MATCH "ans[\r\n\t ]*=[\r\n\t ]*'?(([0-9]+)(\\.([0-9]+))?)"
801 current_match ${match})
803 list(APPEND matlab_list_of_all_versions_tmp ${CMAKE_MATCH_1})
805 if(matlab_list_of_all_versions_tmp)
806 list(REMOVE_DUPLICATES matlab_list_of_all_versions_tmp)
808 set(${matlab_list_versions} ${matlab_list_of_all_versions_tmp} PARENT_SCOPE)
814 #[=======================================================================[.rst:
815 .. command:: matlab_add_unit_test
817 Adds a Matlab unit test to the test set of cmake/ctest.
818 This command requires the component ``MAIN_PROGRAM`` and hence is not
819 available for an MCR installation.
821 The unit test uses the Matlab unittest framework (default, available
822 starting Matlab 2013b+) except if the option ``NO_UNITTEST_FRAMEWORK``
825 The function expects one Matlab test script file to be given.
826 In the case ``NO_UNITTEST_FRAMEWORK`` is given, the unittest script file
827 should contain the script to be run, plus an exit command with the exit
828 value. This exit value will be passed to the ctest framework (0 success,
829 non 0 failure). Additional arguments accepted by :command:`add_test` can be
830 passed through ``TEST_ARGS`` (eg. ``CONFIGURATION <config> ...``).
834 matlab_add_unit_test(
836 UNITTEST_FILE matlab_file_containing_unittest.m
837 [CUSTOM_TEST_COMMAND matlab_command_to_run_as_test]
838 [UNITTEST_PRECOMMAND matlab_command_to_run]
840 [ADDITIONAL_PATH path1 [path2 ...]]
841 [MATLAB_ADDITIONAL_STARTUP_OPTIONS option1 [option2 ...]]
842 [TEST_ARGS arg1 [arg2 ...]]
843 [NO_UNITTEST_FRAMEWORK]
846 The function arguments are:
849 name of the unittest in ctest.
851 the matlab unittest file. Its path will be automatically
852 added to the Matlab path.
853 ``CUSTOM_TEST_COMMAND``
854 Matlab script command to run as the test.
855 If this is not set, then the following is run:
856 ``runtests('matlab_file_name'), exit(max([ans(1,:).Failed]))``
857 where ``matlab_file_name`` is the ``UNITTEST_FILE`` without the extension.
858 ``UNITTEST_PRECOMMAND``
859 Matlab script command to be ran before the file
860 containing the test (eg. GPU device initialization based on CMake
863 the test timeout in seconds. Defaults to 180 seconds as the
864 Matlab unit test may hang.
866 a list of paths to add to the Matlab path prior to
867 running the unit test.
868 ``MATLAB_ADDITIONAL_STARTUP_OPTIONS``
869 a list of additional option in order
870 to run Matlab from the command line.
871 ``-nosplash -nodesktop -nodisplay`` are always added.
873 Additional options provided to the add_test command. These
874 options are added to the default options (eg. "CONFIGURATIONS Release")
875 ``NO_UNITTEST_FRAMEWORK``
876 when set, indicates that the test should not
877 use the unittest framework of Matlab (available for versions >= R2013a).
878 ``WORKING_DIRECTORY``
879 This will be the working directory for the test. If specified it will
880 also be the output directory used for the log file of the test run.
881 If not specified the temporary directory ``${CMAKE_BINARY_DIR}/Matlab`` will
882 be used as the working directory and the log location.
884 #]=======================================================================]
885 function(matlab_add_unit_test)
887 if(NOT Matlab_MAIN_PROGRAM)
888 message(FATAL_ERROR "[MATLAB] This functionality needs the MAIN_PROGRAM component (not default)")
891 set(options NO_UNITTEST_FRAMEWORK)
892 set(oneValueArgs NAME UNITTEST_FILE TIMEOUT WORKING_DIRECTORY
893 UNITTEST_PRECOMMAND CUSTOM_TEST_COMMAND)
894 set(multiValueArgs ADDITIONAL_PATH MATLAB_ADDITIONAL_STARTUP_OPTIONS TEST_ARGS)
896 set(prefix _matlab_unittest_prefix)
897 cmake_parse_arguments(PARSE_ARGV 0 ${prefix} "${options}" "${oneValueArgs}" "${multiValueArgs}" )
899 if(NOT ${prefix}_NAME)
900 message(FATAL_ERROR "[MATLAB] The Matlab test name cannot be empty")
903 add_test(NAME ${${prefix}_NAME}
904 COMMAND ${CMAKE_COMMAND}
905 "-Dtest_name=${${prefix}_NAME}"
906 "-Dadditional_paths=${${prefix}_ADDITIONAL_PATH}"
907 "-Dtest_timeout=${${prefix}_TIMEOUT}"
908 "-Doutput_directory=${_matlab_temporary_folder}"
909 "-Dworking_directory=${${prefix}_WORKING_DIRECTORY}"
910 "-DMatlab_PROGRAM=${Matlab_MAIN_PROGRAM}"
911 "-Dno_unittest_framework=${${prefix}_NO_UNITTEST_FRAMEWORK}"
912 "-DMatlab_ADDITIONAL_STARTUP_OPTIONS=${${prefix}_MATLAB_ADDITIONAL_STARTUP_OPTIONS}"
913 "-Dunittest_file_to_run=${${prefix}_UNITTEST_FILE}"
914 "-Dcustom_Matlab_test_command=${${prefix}_CUSTOM_TEST_COMMAND}"
915 "-Dcmd_to_run_before_test=${${prefix}_UNITTEST_PRECOMMAND}"
916 -P ${_FindMatlab_SELF_DIR}/MatlabTestsRedirect.cmake
917 ${${prefix}_TEST_ARGS}
918 ${${prefix}_UNPARSED_ARGUMENTS}
923 #[=======================================================================[.rst:
924 .. command:: matlab_add_mex
926 Adds a Matlab MEX target.
927 This commands compiles the given sources with the current tool-chain in
928 order to produce a MEX file. The final name of the produced output may be
929 specified, as well as additional link libraries, and a documentation entry
930 for the MEX file. Remaining arguments of the call are passed to the
931 :command:`add_library` or :command:`add_executable` command.
937 [EXECUTABLE | MODULE | SHARED]
939 [OUTPUT_NAME output_name]
940 [DOCUMENTATION file.txt]
941 [LINK_TO target1 target2 ...]
950 list of source files.
952 a list of additional link dependencies. The target links to ``libmex``
953 and ``libmx`` by default.
955 if given, overrides the default name. The default name is
956 the name of the target without any prefix and
957 with ``Matlab_MEX_EXTENSION`` suffix.
959 if given, the file ``file.txt`` will be considered as
960 being the documentation file for the MEX file. This file is copied into
961 the same folder without any processing, with the same name as the final
962 mex file, and with extension `.m`. In that case, typing ``help <name>``
963 in Matlab prints the documentation contained in this file.
964 ``R2017b`` or ``R2018a``
965 .. versionadded:: 3.14
967 May be given to specify the version of the C API
968 to use: ``R2017b`` specifies the traditional (separate complex) C API,
969 and corresponds to the ``-R2017b`` flag for the `mex` command. ``R2018a``
970 specifies the new interleaved complex C API, and corresponds to the
971 ``-R2018a`` flag for the `mex` command. Ignored if MATLAB version prior
972 to R2018a. Defaults to ``R2017b``.
974 ``MODULE`` or ``SHARED``
975 .. versionadded:: 3.7
977 May be given to specify the type of library to be
981 .. versionadded:: 3.7
983 May be given to create an executable instead of
984 a library. If no type is given explicitly, the type is ``SHARED``.
986 This option has the same meaning as for :prop_tgt:`EXCLUDE_FROM_ALL` and
987 is forwarded to :command:`add_library` or :command:`add_executable`
990 The documentation file is not processed and should be in the following
995 % This is the documentation
996 function ret = mex_target_output_name(input1)
998 #]=======================================================================]
999 function(matlab_add_mex)
1002 # we do not need all this on Windows
1004 if(CMAKE_CXX_COMPILER_LOADED)
1005 check_cxx_compiler_flag(-pthread HAS_MINUS_PTHREAD)
1006 elseif(CMAKE_C_COMPILER_LOADED)
1007 check_c_compiler_flag(-pthread HAS_MINUS_PTHREAD)
1009 # we should use try_compile instead, the link flags are discarded from
1010 # this compiler_flag function.
1011 #check_cxx_compiler_flag(-Wl,--exclude-libs,ALL HAS_SYMBOL_HIDING_CAPABILITY)
1015 set(options EXECUTABLE MODULE SHARED R2017b R2018a EXCLUDE_FROM_ALL)
1016 set(oneValueArgs NAME DOCUMENTATION OUTPUT_NAME)
1017 set(multiValueArgs LINK_TO SRC)
1019 set(prefix _matlab_addmex_prefix)
1020 cmake_parse_arguments(${prefix} "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN} )
1022 if(NOT ${prefix}_NAME)
1023 message(FATAL_ERROR "[MATLAB] The MEX target name cannot be empty")
1026 if(NOT ${prefix}_OUTPUT_NAME)
1027 set(${prefix}_OUTPUT_NAME ${${prefix}_NAME})
1030 if(NOT Matlab_VERSION_STRING VERSION_LESS "9.1") # For 9.1 (R2016b) and newer, add version source file
1031 # Add the correct version file depending on which languages are enabled in the project
1032 if(CMAKE_C_COMPILER_LOADED)
1033 # If C is enabled, use the .c file as it will work fine also with C++
1034 set(MEX_VERSION_FILE "${Matlab_ROOT_DIR}/extern/version/c_mexapi_version.c")
1035 elseif(CMAKE_CXX_COMPILER_LOADED)
1036 # If C is not enabled, check if CXX is enabled and use the .cpp file
1037 # to avoid that the .c file is silently ignored
1038 set(MEX_VERSION_FILE "${Matlab_ROOT_DIR}/extern/version/cpp_mexapi_version.cpp")
1040 # If neither C or CXX is enabled, warn because we cannot add the source.
1041 # TODO: add support for fortran mex files
1042 message(WARNING "[MATLAB] matlab_add_mex requires that at least C or CXX are enabled languages")
1046 # For 9.4 (R2018a) and newer, add API macro.
1047 # Add it for unknown versions too, just in case.
1048 if(NOT Matlab_VERSION_STRING VERSION_LESS "9.4"
1049 OR Matlab_VERSION_STRING STREQUAL "unknown")
1050 if(${${prefix}_R2018a})
1051 set(MEX_API_MACRO "MATLAB_DEFAULT_RELEASE=R2018a")
1053 set(MEX_API_MACRO "MATLAB_DEFAULT_RELEASE=R2017b")
1057 set(_option_EXCLUDE_FROM_ALL)
1058 if(${prefix}_EXCLUDE_FROM_ALL)
1059 set(_option_EXCLUDE_FROM_ALL "EXCLUDE_FROM_ALL")
1062 if(${prefix}_EXECUTABLE)
1063 add_executable(${${prefix}_NAME}
1064 ${_option_EXCLUDE_FROM_ALL}
1067 ${${prefix}_DOCUMENTATION}
1068 ${${prefix}_UNPARSED_ARGUMENTS})
1070 if(${prefix}_MODULE)
1076 add_library(${${prefix}_NAME}
1078 ${_option_EXCLUDE_FROM_ALL}
1081 ${${prefix}_DOCUMENTATION}
1082 ${${prefix}_UNPARSED_ARGUMENTS})
1085 target_include_directories(${${prefix}_NAME} PRIVATE ${Matlab_INCLUDE_DIRS})
1087 if(Matlab_HAS_CPP_API)
1088 if(Matlab_ENGINE_LIBRARY)
1089 target_link_libraries(${${prefix}_NAME} ${Matlab_ENGINE_LIBRARY})
1091 if(Matlab_DATAARRAY_LIBRARY)
1092 target_link_libraries(${${prefix}_NAME} ${Matlab_DATAARRAY_LIBRARY})
1096 target_link_libraries(${${prefix}_NAME} ${Matlab_MEX_LIBRARY} ${Matlab_MX_LIBRARY} ${${prefix}_LINK_TO})
1097 set_target_properties(${${prefix}_NAME}
1100 OUTPUT_NAME ${${prefix}_OUTPUT_NAME}
1101 SUFFIX ".${Matlab_MEX_EXTENSION}")
1103 target_compile_definitions(${${prefix}_NAME} PRIVATE ${MEX_API_MACRO} MATLAB_MEX_FILE)
1106 if(NOT ${${prefix}_DOCUMENTATION} STREQUAL "")
1107 get_target_property(output_name ${${prefix}_NAME} OUTPUT_NAME)
1109 TARGET ${${prefix}_NAME}
1111 COMMAND ${CMAKE_COMMAND} -E copy_if_different ${${prefix}_DOCUMENTATION} $<TARGET_FILE_DIR:${${prefix}_NAME}>/${output_name}.m
1112 COMMENT "[MATLAB] Copy ${${prefix}_NAME} documentation file into the output folder"
1114 endif() # documentation
1116 # entry point in the mex file + taking care of visibility and symbol clashes.
1121 set(_link_flags "${_link_flags} /EXPORT:mexFunction")
1122 if(NOT Matlab_VERSION_STRING VERSION_LESS "9.1") # For 9.1 (R2016b) and newer, export version
1123 set(_link_flags "${_link_flags} /EXPORT:mexfilerequiredapiversion")
1126 set_property(TARGET ${${prefix}_NAME} APPEND PROPERTY LINK_FLAGS ${_link_flags})
1128 endif() # No other compiler currently supported on Windows.
1130 set_target_properties(${${prefix}_NAME}
1132 DEFINE_SYMBOL "DLL_EXPORT_SYM=__declspec(dllexport)")
1136 if(Matlab_VERSION_STRING VERSION_LESS "9.1") # For versions prior to 9.1 (R2016b)
1137 set(_ver_map_files ${Matlab_EXTERN_LIBRARY_DIR}/mexFunction.map)
1138 else() # For 9.1 (R2016b) and newer
1139 set(_ver_map_files ${Matlab_EXTERN_LIBRARY_DIR}/c_exportsmexfileversion.map)
1142 if(NOT Matlab_VERSION_STRING VERSION_LESS "9.5") # For 9.5 (R2018b) (and newer?)
1143 target_compile_options(${${prefix}_NAME} PRIVATE "-fvisibility=default")
1144 # This one is weird, it might be a bug in <mex.h> for R2018b. When compiling with
1145 # -fvisibility=hidden, the symbol `mexFunction` cannot be exported. Reading the
1146 # source code for <mex.h>, it seems that the preprocessor macro `MW_NEEDS_VERSION_H`
1147 # needs to be defined for `__attribute__((visibility("default")))` to be added
1148 # in front of the declaration of `mexFunction`. In previous versions of MATLAB this
1149 # was not the case, there `DLL_EXPORT_SYM` needed to be defined.
1150 # Adding `-fvisibility=hidden` to the `mex` command causes the build to fail.
1151 # TODO: Check that this is still necessary in R2019a when it comes out.
1156 if(Matlab_HAS_CPP_API)
1157 list(APPEND _ver_map_files ${Matlab_EXTERN_LIBRARY_DIR}/cppMexFunction.map) # This one doesn't exist on Linux
1158 set(_link_flags "${_link_flags} -Wl,-U,_mexCreateMexFunction -Wl,-U,_mexDestroyMexFunction -Wl,-U,_mexFunctionAdapter")
1159 # On MacOS, the MEX command adds the above, without it the link breaks
1160 # because we indiscriminately use "cppMexFunction.map" even for C API MEX-files.
1163 set(_export_flag_name -exported_symbols_list)
1167 if(HAS_MINUS_PTHREAD)
1168 # Apparently, compiling with -pthread generated the proper link flags
1169 # and some defines at compilation
1170 target_compile_options(${${prefix}_NAME} PRIVATE "-pthread")
1173 set(_link_flags "${_link_flags} -Wl,--as-needed")
1175 set(_export_flag_name --version-script)
1179 foreach(_file ${_ver_map_files})
1180 set(_link_flags "${_link_flags} -Wl,${_export_flag_name},${_file}")
1183 # The `mex` command doesn't add this define. It is specified here in order
1184 # to export the symbol in case the client code decides to hide its symbols
1185 set_target_properties(${${prefix}_NAME}
1187 DEFINE_SYMBOL "DLL_EXPORT_SYM=__attribute__((visibility(\"default\")))"
1188 LINK_FLAGS "${_link_flags}"
1197 # Used to get the version of matlab, using caching. This basically transforms the
1198 # output of the root list, with possible unknown version, to a version
1199 # This can possibly run Matlab for extracting the version.
1200 function(_Matlab_get_version_from_root matlab_root matlab_or_mcr matlab_known_version matlab_final_version)
1202 # if the version is not trivial, we query matlab (if not MCR) for that
1203 # we keep track of the location of matlab that induced this version
1204 #if(NOT DEFINED Matlab_PROG_VERSION_STRING_AUTO_DETECT)
1205 # set(Matlab_PROG_VERSION_STRING_AUTO_DETECT "" CACHE INTERNAL "internal matlab location for the discovered version")
1208 if(NOT matlab_known_version STREQUAL "NOTFOUND")
1209 # the version is known, we just return it
1210 set(${matlab_final_version} ${matlab_known_version} PARENT_SCOPE)
1211 set(Matlab_VERSION_STRING_INTERNAL ${matlab_known_version} CACHE INTERNAL "Matlab version (automatically determined)" FORCE)
1215 if(matlab_or_mcr STREQUAL "UNKNOWN")
1216 if(MATLAB_FIND_DEBUG)
1217 message(WARNING "[MATLAB] Determining Matlab or MCR")
1220 if(EXISTS "${matlab_root}/appdata/version.xml")
1221 # we inspect the application version.xml file that contains the product information
1222 file(STRINGS "${matlab_root}/appdata/version.xml" productinfo_string NEWLINE_CONSUME)
1223 string(REGEX MATCH "<installedProductData.*displayedString=\"([a-zA-Z ]+)\".*/>"
1225 ${productinfo_string}
1228 # default fallback to Matlab
1229 set(matlab_or_mcr "MATLAB")
1230 if(NOT CMAKE_MATCH_1 STREQUAL "")
1231 string(TOLOWER "${CMAKE_MATCH_1}" product_reg_match)
1233 if(product_reg_match STREQUAL "matlab runtime")
1234 set(matlab_or_mcr "MCR")
1239 if(MATLAB_FIND_DEBUG)
1240 message(WARNING "[MATLAB] '${matlab_root}' contains the '${matlab_or_mcr}'")
1244 # UNKNOWN is the default behavior in case we
1245 # - have an erroneous matlab_root
1246 # - have an initial 'UNKNOWN'
1247 if(matlab_or_mcr STREQUAL "MATLAB" OR matlab_or_mcr STREQUAL "UNKNOWN")
1249 set(_matlab_current_program ${Matlab_MAIN_PROGRAM})
1251 # do we already have a matlab program?
1252 if(NOT _matlab_current_program)
1254 set(_find_matlab_options)
1255 if(matlab_root AND EXISTS ${matlab_root})
1256 set(_find_matlab_options PATHS ${matlab_root} ${matlab_root}/bin NO_DEFAULT_PATH)
1260 _matlab_current_program
1262 ${_find_matlab_options}
1263 DOC "Matlab main program"
1267 if(NOT _matlab_current_program OR NOT EXISTS ${_matlab_current_program})
1268 # if not found, clear the dependent variables
1269 if(MATLAB_FIND_DEBUG)
1270 message(WARNING "[MATLAB] Cannot find the main matlab program under ${matlab_root}")
1272 set(Matlab_PROG_VERSION_STRING_AUTO_DETECT "" CACHE INTERNAL "internal matlab location for the discovered version" FORCE)
1273 set(Matlab_VERSION_STRING_INTERNAL "" CACHE INTERNAL "internal matlab location for the discovered version" FORCE)
1274 unset(_matlab_current_program)
1275 unset(_matlab_current_program CACHE)
1279 # full real path for path comparison
1280 get_filename_component(_matlab_main_real_path_tmp "${_matlab_current_program}" REALPATH)
1281 unset(_matlab_current_program)
1282 unset(_matlab_current_program CACHE)
1284 # is it the same as the previous one?
1285 if(_matlab_main_real_path_tmp STREQUAL Matlab_PROG_VERSION_STRING_AUTO_DETECT)
1286 set(${matlab_final_version} ${Matlab_VERSION_STRING_INTERNAL} PARENT_SCOPE)
1290 # update the location of the program
1291 set(Matlab_PROG_VERSION_STRING_AUTO_DETECT
1292 ${_matlab_main_real_path_tmp}
1293 CACHE INTERNAL "internal matlab location for the discovered version" FORCE)
1295 set(matlab_list_of_all_versions)
1296 matlab_get_version_from_matlab_run("${Matlab_PROG_VERSION_STRING_AUTO_DETECT}" matlab_list_of_all_versions)
1298 list(LENGTH matlab_list_of_all_versions list_of_all_versions_length)
1299 if(list_of_all_versions_length GREATER 0)
1300 list(GET matlab_list_of_all_versions 0 _matlab_version_tmp)
1302 set(_matlab_version_tmp "unknown")
1305 # set the version into the cache
1306 set(Matlab_VERSION_STRING_INTERNAL ${_matlab_version_tmp} CACHE INTERNAL "Matlab version (automatically determined)" FORCE)
1308 # warning, just in case several versions found (should not happen)
1309 if((list_of_all_versions_length GREATER 1) AND MATLAB_FIND_DEBUG)
1310 message(WARNING "[MATLAB] Found several versions, taking the first one (versions found ${matlab_list_of_all_versions})")
1313 # return the updated value
1314 set(${matlab_final_version} ${Matlab_VERSION_STRING_INTERNAL} PARENT_SCOPE)
1315 elseif(EXISTS "${matlab_root}/VersionInfo.xml")
1317 # we cannot run anything in order to extract the version. We assume that the file
1318 # VersionInfo.xml exists under the MatlabRoot, we look for it and extract the version from there
1319 set(_matlab_version_tmp "unknown")
1320 file(STRINGS "${matlab_root}/VersionInfo.xml" versioninfo_string NEWLINE_CONSUME)
1322 if(versioninfo_string)
1323 # parses "<version>9.2.0.538062</version>"
1324 string(REGEX MATCH "<version>(.*)</version>"
1326 ${versioninfo_string}
1329 if(CMAKE_MATCH_1 MATCHES "(([0-9])\\.([0-9]))[\\.0-9]*")
1330 set(_matlab_version_tmp "${CMAKE_MATCH_1}")
1333 set(${matlab_final_version} "${_matlab_version_tmp}" PARENT_SCOPE)
1334 set(Matlab_VERSION_STRING_INTERNAL
1335 "${_matlab_version_tmp}"
1336 CACHE INTERNAL "Matlab (MCR) version (automatically determined)"
1338 endif() # Matlab or MCR
1343 # Utility function for finding Matlab or MCR on Win32
1344 function(_Matlab_find_instances_win32 matlab_roots)
1345 # On WIN32, we look for Matlab installation in the registry
1346 # if unsuccessful, we look for all known revision and filter the existing
1349 # testing if we are able to extract the needed information from the registry
1350 set(_matlab_versions_from_registry)
1352 if(CMAKE_SIZEOF_VOID_P EQUAL 8)
1353 set(_matlab_win64 ON)
1355 set(_matlab_win64 OFF)
1358 matlab_extract_all_installed_versions_from_registry(_matlab_win64 _matlab_versions_from_registry)
1360 # the returned list is empty, doing the search on all known versions
1361 if(NOT _matlab_versions_from_registry)
1362 if(MATLAB_FIND_DEBUG)
1363 message(STATUS "[MATLAB] Search for Matlab from the registry unsuccessful, testing all supported versions")
1365 extract_matlab_versions_from_registry_brute_force(_matlab_versions_from_registry)
1368 # filtering the results with the registry keys
1369 matlab_get_all_valid_matlab_roots_from_registry("${_matlab_versions_from_registry}" _matlab_possible_roots)
1370 set(${matlab_roots} ${_matlab_possible_roots} PARENT_SCOPE)
1374 # Utility function for finding Matlab or MCR on OSX
1375 function(_Matlab_find_instances_osx matlab_roots)
1377 set(_matlab_possible_roots)
1378 # on mac, we look for the /Application paths
1379 # this corresponds to the behavior on Windows. On Linux, we do not have
1381 matlab_get_supported_releases(_matlab_releases)
1382 if(MATLAB_FIND_DEBUG)
1383 message(STATUS "[MATLAB] Matlab supported versions ${_matlab_releases}. If more version should be supported "
1384 "the variable MATLAB_ADDITIONAL_VERSIONS can be set according to the documentation")
1387 foreach(_matlab_current_release IN LISTS _matlab_releases)
1388 matlab_get_version_from_release_name("${_matlab_current_release}" _matlab_current_version)
1389 string(REPLACE "." "" _matlab_current_version_without_dot "${_matlab_current_version}")
1390 set(_matlab_base_path "/Applications/MATLAB_${_matlab_current_release}.app")
1392 # Check Matlab, has precedence over MCR
1393 if(EXISTS ${_matlab_base_path})
1394 if(MATLAB_FIND_DEBUG)
1395 message(STATUS "[MATLAB] Found version ${_matlab_current_release} (${_matlab_current_version}) in ${_matlab_base_path}")
1397 list(APPEND _matlab_possible_roots "MATLAB" ${_matlab_current_version} ${_matlab_base_path})
1401 set(_mcr_path "/Applications/MATLAB/MATLAB_Runtime/v${_matlab_current_version_without_dot}")
1402 if(EXISTS "${_mcr_path}")
1403 if(MATLAB_FIND_DEBUG)
1404 message(STATUS "[MATLAB] Found MCR version ${_matlab_current_release} (${_matlab_current_version}) in ${_mcr_path}")
1406 list(APPEND _matlab_possible_roots "MCR" ${_matlab_current_version} ${_mcr_path})
1410 set(${matlab_roots} ${_matlab_possible_roots} PARENT_SCOPE)
1414 # Utility function for finding Matlab or MCR from the PATH
1415 function(_Matlab_find_instances_from_path matlab_roots)
1417 set(_matlab_possible_roots)
1419 # At this point, we have no other choice than trying to find it from PATH.
1420 # If set by the user, this won't change.
1425 if(_matlab_main_tmp)
1426 # we then populate the list of roots, with empty version
1427 if(MATLAB_FIND_DEBUG)
1428 message(STATUS "[MATLAB] matlab found from PATH: ${_matlab_main_tmp}")
1432 get_filename_component(_matlab_current_location "${_matlab_main_tmp}" REALPATH)
1434 # get the directory (the command below has to be run twice)
1435 # this will be the matlab root
1436 get_filename_component(_matlab_current_location "${_matlab_current_location}" DIRECTORY)
1437 get_filename_component(_matlab_current_location "${_matlab_current_location}" DIRECTORY) # Matlab should be in bin
1439 # We found the Matlab program
1440 list(APPEND _matlab_possible_roots "MATLAB" "NOTFOUND" ${_matlab_current_location})
1442 # we remove this from the CACHE
1443 unset(_matlab_main_tmp CACHE)
1449 # we then populate the list of roots, with empty version
1450 if(MATLAB_FIND_DEBUG)
1451 message(STATUS "[MATLAB] mex compiler found from PATH: ${_matlab_mex_tmp}")
1455 get_filename_component(_mex_current_location "${_matlab_mex_tmp}" REALPATH)
1457 # get the directory (the command below has to be run twice)
1458 # this will be the matlab root
1459 get_filename_component(_mex_current_location "${_mex_current_location}" DIRECTORY)
1460 get_filename_component(_mex_current_location "${_mex_current_location}" DIRECTORY) # Matlab Runtime mex compiler should be in bin
1462 # We found the Matlab program
1463 list(APPEND _matlab_possible_roots "MCR" "NOTFOUND" ${_mex_current_location})
1465 unset(_matlab_mex_tmp CACHE)
1467 if(MATLAB_FIND_DEBUG)
1468 message(STATUS "[MATLAB] mex compiler not found")
1475 set(${matlab_roots} ${_matlab_possible_roots} PARENT_SCOPE)
1479 # ###################################
1480 # Exploring the possible Matlab_ROOTS
1482 # this variable will get all Matlab installations found in the current system.
1483 set(_matlab_possible_roots)
1486 # if the user specifies a possible root, we keep this one
1488 if(NOT EXISTS "${Matlab_ROOT_DIR}")
1489 # if Matlab_ROOT_DIR specified but erroneous
1490 if(MATLAB_FIND_DEBUG)
1491 message(WARNING "[MATLAB] the specified path for Matlab_ROOT_DIR does not exist (${Matlab_ROOT_DIR})")
1494 # NOTFOUND indicates the code below to search for the version automatically
1495 if("${Matlab_VERSION_STRING_INTERNAL}" STREQUAL "")
1496 list(APPEND _matlab_possible_roots "UNKNOWN" "NOTFOUND" ${Matlab_ROOT_DIR}) # empty version, empty MCR/Matlab indication
1498 list(APPEND _matlab_possible_roots "UNKNOWN" ${Matlab_VERSION_STRING_INTERNAL} ${Matlab_ROOT_DIR}) # cached version
1503 # if the user does not specify the possible installation root, we look for
1504 # one installation using the appropriate heuristics.
1505 # There is apparently no standard way on Linux.
1506 if(CMAKE_HOST_WIN32)
1507 _Matlab_find_instances_win32(_matlab_possible_roots_win32)
1508 list(APPEND _matlab_possible_roots ${_matlab_possible_roots_win32})
1510 _Matlab_find_instances_osx(_matlab_possible_roots_osx)
1511 list(APPEND _matlab_possible_roots ${_matlab_possible_roots_osx})
1516 list(LENGTH _matlab_possible_roots _numbers_of_matlab_roots)
1517 if(_numbers_of_matlab_roots EQUAL 0)
1518 # if we have not found anything, we fall back on the PATH
1519 _Matlab_find_instances_from_path(_matlab_possible_roots)
1523 if(MATLAB_FIND_DEBUG)
1524 message(STATUS "[MATLAB] Matlab root folders are ${_matlab_possible_roots}")
1531 # take the first possible Matlab root
1532 list(LENGTH _matlab_possible_roots _numbers_of_matlab_roots)
1533 set(Matlab_VERSION_STRING "NOTFOUND")
1534 set(Matlab_Or_MCR "UNKNOWN")
1535 if(_numbers_of_matlab_roots GREATER 0)
1536 if(Matlab_FIND_VERSION_EXACT)
1537 list(FIND _matlab_possible_roots ${Matlab_FIND_VERSION} _list_index)
1538 if(_list_index LESS 0)
1542 math(EXPR _matlab_or_mcr_index "${_list_index} - 1")
1543 math(EXPR _matlab_root_dir_index "${_list_index} + 1")
1545 list(GET _matlab_possible_roots ${_matlab_or_mcr_index} Matlab_Or_MCR)
1546 list(GET _matlab_possible_roots ${_list_index} Matlab_VERSION_STRING)
1547 list(GET _matlab_possible_roots ${_matlab_root_dir_index} Matlab_ROOT_DIR)
1549 list(GET _matlab_possible_roots 0 Matlab_Or_MCR)
1550 list(GET _matlab_possible_roots 1 Matlab_VERSION_STRING)
1551 list(GET _matlab_possible_roots 2 Matlab_ROOT_DIR)
1553 # adding a warning in case of ambiguity
1554 if(_numbers_of_matlab_roots GREATER 3 AND MATLAB_FIND_DEBUG)
1555 message(WARNING "[MATLAB] Found several distributions of Matlab. Setting the current version to ${Matlab_VERSION_STRING} (located ${Matlab_ROOT_DIR})."
1556 " If this is not the desired behavior, use the EXACT keyword or provide the -DMatlab_ROOT_DIR=... on the command line")
1562 # check if the root changed wrt. the previous defined one, if so
1563 # clear all the cached variables for being able to reconfigure properly
1564 if(DEFINED Matlab_ROOT_DIR_LAST_CACHED)
1566 if(NOT Matlab_ROOT_DIR_LAST_CACHED STREQUAL Matlab_ROOT_DIR)
1567 set(_Matlab_cached_vars
1568 Matlab_VERSION_STRING
1577 Matlab_ENGINE_LIBRARY
1578 Matlab_DATAARRAY_LIBRARY
1579 Matlab_MEX_EXTENSION
1580 Matlab_SIMULINK_INCLUDE_DIR
1583 Matlab_MEXEXTENSIONS_PROG
1584 Matlab_ROOT_DIR_LAST_CACHED
1585 #Matlab_PROG_VERSION_STRING_AUTO_DETECT
1586 #Matlab_VERSION_STRING_INTERNAL
1588 foreach(_var IN LISTS _Matlab_cached_vars)
1590 unset(${_var} CACHE)
1596 set(Matlab_ROOT_DIR_LAST_CACHED ${Matlab_ROOT_DIR} CACHE INTERNAL "last Matlab root dir location")
1597 set(Matlab_ROOT_DIR ${Matlab_ROOT_DIR} CACHE PATH "Matlab installation root path" FORCE)
1599 # Fix the version, in case this one is NOTFOUND
1600 _Matlab_get_version_from_root(
1601 "${Matlab_ROOT_DIR}"
1603 ${Matlab_VERSION_STRING}
1604 Matlab_VERSION_STRING
1607 if(MATLAB_FIND_DEBUG)
1608 message(STATUS "[MATLAB] Current version is ${Matlab_VERSION_STRING} located ${Matlab_ROOT_DIR}")
1611 # MATLAB 9.4 (R2018a) and newer have a new C++ API
1612 # This API pulls additional required libraries.
1613 if(NOT ${Matlab_VERSION_STRING} VERSION_LESS "9.4")
1614 set(Matlab_HAS_CPP_API 1)
1618 file(TO_CMAKE_PATH ${Matlab_ROOT_DIR} Matlab_ROOT_DIR)
1621 if(CMAKE_SIZEOF_VOID_P EQUAL 4)
1622 set(_matlab_64Build FALSE)
1624 set(_matlab_64Build TRUE)
1628 set(_matlab_bin_prefix "mac") # i should be for intel
1629 set(_matlab_bin_suffix_32bits "i")
1630 set(_matlab_bin_suffix_64bits "i64")
1632 set(_matlab_bin_prefix "gln")
1633 set(_matlab_bin_suffix_32bits "x86")
1634 set(_matlab_bin_suffix_64bits "xa64")
1636 set(_matlab_bin_prefix "win")
1637 set(_matlab_bin_suffix_32bits "32")
1638 set(_matlab_bin_suffix_64bits "64")
1643 set(MATLAB_INCLUDE_DIR_TO_LOOK ${Matlab_ROOT_DIR}/extern/include)
1645 set(_matlab_current_suffix ${_matlab_bin_suffix_64bits})
1647 set(_matlab_current_suffix ${_matlab_bin_suffix_32bits})
1650 set(Matlab_BINARIES_DIR
1651 ${Matlab_ROOT_DIR}/bin/${_matlab_bin_prefix}${_matlab_current_suffix})
1652 set(Matlab_EXTERN_LIBRARY_DIR
1653 ${Matlab_ROOT_DIR}/extern/lib/${_matlab_bin_prefix}${_matlab_current_suffix})
1654 set(Matlab_EXTERN_BINARIES_DIR
1655 ${Matlab_ROOT_DIR}/extern/bin/${_matlab_bin_prefix}${_matlab_current_suffix})
1659 set(_matlab_lib_dir_for_search ${Matlab_EXTERN_LIBRARY_DIR}/mingw64)
1661 set(_matlab_lib_dir_for_search ${Matlab_EXTERN_LIBRARY_DIR}/microsoft)
1663 set(_matlab_lib_prefix_for_search "lib")
1665 set(_matlab_lib_dir_for_search ${Matlab_BINARIES_DIR} ${Matlab_EXTERN_BINARIES_DIR})
1666 set(_matlab_lib_prefix_for_search "lib")
1669 unset(_matlab_64Build)
1672 if(NOT DEFINED Matlab_MEX_EXTENSION)
1673 set(_matlab_mex_extension "")
1674 matlab_get_mex_suffix("${Matlab_ROOT_DIR}" _matlab_mex_extension)
1676 # This variable goes to the cache.
1677 set(Matlab_MEX_EXTENSION ${_matlab_mex_extension} CACHE STRING "Extensions for the mex targets (automatically given by Matlab)")
1678 unset(_matlab_mex_extension)
1682 if(MATLAB_FIND_DEBUG)
1683 message(STATUS "[MATLAB] [DEBUG]_matlab_lib_prefix_for_search = ${_matlab_lib_prefix_for_search} | _matlab_lib_dir_for_search = ${_matlab_lib_dir_for_search}")
1689 # This small stub around find_library is to prevent any pollution of CMAKE_FIND_LIBRARY_PREFIXES in the global scope.
1690 # This is the function to be used below instead of the find_library directives.
1691 function(_Matlab_find_library _matlab_library_prefix)
1692 set(CMAKE_FIND_LIBRARY_PREFIXES ${CMAKE_FIND_LIBRARY_PREFIXES} ${_matlab_library_prefix})
1693 find_library(${ARGN})
1697 set(_matlab_required_variables)
1699 # Order is as follow:
1700 # - unconditionally required libraries/headers first
1701 # - then library components
1702 # - then program components
1704 # the MEX library/header are required
1708 PATHS ${MATLAB_INCLUDE_DIR_TO_LOOK}
1711 list(APPEND _matlab_required_variables Matlab_INCLUDE_DIRS)
1713 if(Matlab_Or_MCR STREQUAL "MATLAB" OR Matlab_Or_MCR STREQUAL "UNKNOWN")
1714 _Matlab_find_library(
1715 ${_matlab_lib_prefix_for_search}
1718 PATHS ${_matlab_lib_dir_for_search}
1721 list(APPEND _matlab_required_variables Matlab_MEX_LIBRARY)
1723 # the MEX extension is required
1724 list(APPEND _matlab_required_variables Matlab_MEX_EXTENSION)
1726 # the matlab root is required
1727 list(APPEND _matlab_required_variables Matlab_ROOT_DIR)
1729 # The MX library is required
1730 _Matlab_find_library(
1731 ${_matlab_lib_prefix_for_search}
1734 PATHS ${_matlab_lib_dir_for_search}
1737 list(APPEND _matlab_required_variables Matlab_MX_LIBRARY)
1738 if(Matlab_MX_LIBRARY)
1739 set(Matlab_MX_LIBRARY_FOUND TRUE)
1743 if(Matlab_HAS_CPP_API)
1745 # The MatlabEngine library is required for R2018a+
1746 _Matlab_find_library(
1747 ${_matlab_lib_prefix_for_search}
1748 Matlab_ENGINE_LIBRARY
1750 PATHS ${_matlab_lib_dir_for_search}
1751 DOC "MatlabEngine Library"
1754 if(Matlab_ENGINE_LIBRARY)
1755 set(Matlab_ENGINE_LIBRARY_FOUND TRUE)
1758 # The MatlabDataArray library is required for R2018a+
1759 _Matlab_find_library(
1760 ${_matlab_lib_prefix_for_search}
1761 Matlab_DATAARRAY_LIBRARY
1763 PATHS ${_matlab_lib_dir_for_search}
1764 DOC "MatlabDataArray Library"
1767 if(Matlab_DATAARRAY_LIBRARY)
1768 set(Matlab_DATAARRAY_LIBRARY_FOUND TRUE)
1773 # Component ENG library
1774 if("ENG_LIBRARY" IN_LIST Matlab_FIND_COMPONENTS)
1775 _Matlab_find_library(
1776 ${_matlab_lib_prefix_for_search}
1779 PATHS ${_matlab_lib_dir_for_search}
1782 if(Matlab_ENG_LIBRARY)
1783 set(Matlab_ENG_LIBRARY_FOUND TRUE)
1787 # Component MAT library
1788 if("MAT_LIBRARY" IN_LIST Matlab_FIND_COMPONENTS)
1789 _Matlab_find_library(
1790 ${_matlab_lib_prefix_for_search}
1793 PATHS ${_matlab_lib_dir_for_search}
1796 if(Matlab_MAT_LIBRARY)
1797 set(Matlab_MAT_LIBRARY_FOUND TRUE)
1801 # Component Simulink
1802 if("SIMULINK" IN_LIST Matlab_FIND_COMPONENTS)
1804 Matlab_SIMULINK_INCLUDE_DIR
1806 PATHS "${Matlab_ROOT_DIR}/simulink/include"
1809 if(Matlab_SIMULINK_INCLUDE_DIR)
1810 set(Matlab_SIMULINK_FOUND TRUE)
1811 list(APPEND Matlab_INCLUDE_DIRS "${Matlab_SIMULINK_INCLUDE_DIR}")
1815 # component Matlab program
1816 if("MAIN_PROGRAM" IN_LIST Matlab_FIND_COMPONENTS)
1820 PATHS ${Matlab_ROOT_DIR} ${Matlab_ROOT_DIR}/bin
1821 DOC "Matlab main program"
1824 if(Matlab_MAIN_PROGRAM)
1825 set(Matlab_MAIN_PROGRAM_FOUND TRUE)
1829 # component Mex Compiler
1830 if("MEX_COMPILER" IN_LIST Matlab_FIND_COMPONENTS)
1834 PATHS ${Matlab_BINARIES_DIR}
1835 DOC "Matlab MEX compiler"
1838 if(Matlab_MEX_COMPILER)
1839 set(Matlab_MEX_COMPILER_FOUND TRUE)
1843 # component MCC Compiler
1844 if("MCC_COMPILER" IN_LIST Matlab_FIND_COMPONENTS)
1848 PATHS ${Matlab_BINARIES_DIR}
1849 DOC "Matlab MCC compiler"
1852 if(Matlab_MCC_COMPILER)
1853 set(Matlab_MCC_COMPILER_FOUND TRUE)
1857 set(Matlab_LIBRARIES
1858 ${Matlab_MEX_LIBRARY} ${Matlab_MX_LIBRARY}
1859 ${Matlab_ENG_LIBRARY} ${Matlab_MAT_LIBRARY})
1861 if(Matlab_ENGINE_LIBRARY)
1862 list(APPEND Matlab_LIBRARIES ${Matlab_ENGINE_LIBRARY})
1865 if(Matlab_DATAARRAY_LIBRARY)
1866 list(APPEND Matlab_LIBRARIES ${Matlab_DATAARRAY_LIBRARY})
1869 find_package_handle_standard_args(
1871 FOUND_VAR Matlab_FOUND
1872 REQUIRED_VARS ${_matlab_required_variables}
1873 VERSION_VAR Matlab_VERSION_STRING
1876 unset(_matlab_required_variables)
1877 unset(_matlab_bin_prefix)
1878 unset(_matlab_bin_suffix_32bits)
1879 unset(_matlab_bin_suffix_64bits)
1880 unset(_matlab_current_suffix)
1881 unset(_matlab_lib_dir_for_search)
1882 unset(_matlab_lib_prefix_for_search)
1884 if(Matlab_INCLUDE_DIRS AND Matlab_LIBRARIES)
1889 Matlab_ENGINE_LIBRARY
1890 Matlab_DATAARRAY_LIBRARY
1895 Matlab_MEXEXTENSIONS_PROG
1896 Matlab_MEX_EXTENSION