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
287 ${MATLAB_ADDITIONAL_VERSIONS}
291 # temporary folder for all Matlab runs
292 set(_matlab_temporary_folder ${CMAKE_BINARY_DIR}/Matlab)
294 if(NOT EXISTS "${_matlab_temporary_folder}")
295 file(MAKE_DIRECTORY "${_matlab_temporary_folder}")
298 #[=======================================================================[.rst:
299 .. command:: matlab_get_version_from_release_name
301 Returns the version of Matlab (17.58) from a release name (R2017k)
302 #]=======================================================================]
303 macro(matlab_get_version_from_release_name release_name version_name)
305 string(REGEX MATCHALL "${release_name}=([0-9]+\\.?[0-9]*)" _matched ${MATLAB_VERSIONS_MAPPING})
307 set(${version_name} "")
308 if(NOT _matched STREQUAL "")
309 set(${version_name} ${CMAKE_MATCH_1})
311 message(WARNING "[MATLAB] The release name ${release_name} is not registered")
321 #[=======================================================================[.rst:
322 .. command:: matlab_get_release_name_from_version
324 Returns the release name (R2017k) from the version of Matlab (17.58)
325 #]=======================================================================]
326 macro(matlab_get_release_name_from_version version release_name)
328 set(${release_name} "")
329 foreach(_var IN LISTS MATLAB_VERSIONS_MAPPING)
330 string(REGEX MATCHALL "(.+)=${version}" _matched ${_var})
331 if(NOT _matched STREQUAL "")
332 set(${release_name} ${CMAKE_MATCH_1})
339 if(${release_name} STREQUAL "")
340 message(WARNING "[MATLAB] The version ${version} is not registered")
349 # extracts all the supported release names (R2017k...) of Matlab
351 macro(matlab_get_supported_releases list_releases)
352 set(${list_releases})
353 foreach(_var IN LISTS MATLAB_VERSIONS_MAPPING)
354 string(REGEX MATCHALL "(.+)=([0-9]+\\.?[0-9]*)" _matched ${_var})
355 if(NOT _matched STREQUAL "")
356 list(APPEND ${list_releases} ${CMAKE_MATCH_1})
366 # extracts all the supported versions of Matlab
368 macro(matlab_get_supported_versions list_versions)
369 set(${list_versions})
370 foreach(_var IN LISTS MATLAB_VERSIONS_MAPPING)
371 string(REGEX MATCHALL "(.+)=([0-9]+\\.?[0-9]*)" _matched ${_var})
372 if(NOT _matched STREQUAL "")
373 list(APPEND ${list_versions} ${CMAKE_MATCH_2})
382 #[=======================================================================[.rst:
383 .. command:: matlab_extract_all_installed_versions_from_registry
385 This function parses the registry and founds the Matlab versions that are
386 installed. The found versions are returned in `matlab_versions`.
387 Set `win64` to `TRUE` if the 64 bit version of Matlab should be looked for
388 The returned list contains all versions under
389 ``HKLM\\SOFTWARE\\Mathworks\\MATLAB`` and
390 ``HKLM\\SOFTWARE\\Mathworks\\MATLAB Runtime`` or an empty list in case an
391 error occurred (or nothing found).
395 Only the versions are provided. No check is made over the existence of the
396 installation referenced in the registry,
398 #]=======================================================================]
399 function(matlab_extract_all_installed_versions_from_registry win64 matlab_versions)
401 if(NOT CMAKE_HOST_WIN32)
402 message(FATAL_ERROR "[MATLAB] This macro can only be called by a windows host (call to reg.exe)")
405 if(${win64} AND CMAKE_HOST_SYSTEM_PROCESSOR MATCHES "64")
406 set(APPEND_REG "/reg:64")
408 set(APPEND_REG "/reg:32")
411 set(matlabs_from_registry)
413 foreach(_installation_type IN ITEMS "MATLAB" "MATLAB Runtime" "MATLAB Compiler Runtime")
415 # /reg:64 should be added on 64 bits capable OSs in order to enable the
416 # redirection of 64 bits applications
418 COMMAND reg query "HKEY_LOCAL_MACHINE\\SOFTWARE\\Mathworks\\${_installation_type}" /f * /k ${APPEND_REG}
419 RESULT_VARIABLE resultMatlab
420 OUTPUT_VARIABLE varMatlab
421 ERROR_VARIABLE errMatlab
426 if(resultMatlab EQUAL 0)
429 REGEX MATCHALL "${_installation_type}\\\\([0-9]+(\\.[0-9]+)?)"
430 matlab_versions_regex ${varMatlab})
432 foreach(match IN LISTS matlab_versions_regex)
434 REGEX MATCH "${_installation_type}\\\\(([0-9]+)(\\.([0-9]+))?)"
435 current_match ${match})
437 set(_matlab_current_version ${CMAKE_MATCH_1})
438 set(current_matlab_version_major ${CMAKE_MATCH_2})
439 set(current_matlab_version_minor ${CMAKE_MATCH_4})
440 if(NOT current_matlab_version_minor)
441 set(current_matlab_version_minor "0")
444 list(APPEND matlabs_from_registry ${_matlab_current_version})
445 unset(_matlab_current_version)
451 if(matlabs_from_registry)
452 list(REMOVE_DUPLICATES matlabs_from_registry)
453 list(SORT matlabs_from_registry)
454 list(REVERSE matlabs_from_registry)
457 set(${matlab_versions} ${matlabs_from_registry} PARENT_SCOPE)
464 macro(extract_matlab_versions_from_registry_brute_force matlab_versions)
465 # get the supported versions
466 set(matlab_supported_versions)
467 matlab_get_supported_versions(matlab_supported_versions)
470 # this is a manual population of the versions we want to look for
471 # this can be done as is, but preferably with the call to
472 # matlab_get_supported_versions and variable
474 # populating the versions we want to look for
475 # set(matlab_supported_versions)
478 # set(matlab_major 7)
479 # foreach(current_matlab_minor RANGE 4 20)
480 # list(APPEND matlab_supported_versions "${matlab_major}.${current_matlab_minor}")
481 # endforeach(current_matlab_minor)
484 # set(matlab_major 8)
485 # foreach(current_matlab_minor RANGE 0 5)
486 # list(APPEND matlab_supported_versions "${matlab_major}.${current_matlab_minor}")
487 # endforeach(current_matlab_minor)
489 # # taking into account the possible additional versions provided by the user
490 # if(DEFINED MATLAB_ADDITIONAL_VERSIONS)
491 # list(APPEND matlab_supported_versions MATLAB_ADDITIONAL_VERSIONS)
494 # we order from more recent to older
495 if(matlab_supported_versions)
496 list(REMOVE_DUPLICATES matlab_supported_versions)
497 list(SORT matlab_supported_versions)
498 list(REVERSE matlab_supported_versions)
501 set(${matlab_versions} ${matlab_supported_versions})
507 #[=======================================================================[.rst:
508 .. command:: matlab_get_all_valid_matlab_roots_from_registry
510 Populates the Matlab root with valid versions of Matlab or
511 Matlab Runtime (MCR).
512 The returned matlab_roots is organized in triplets
513 ``(type,version_number,matlab_root_path)``, where ``type``
514 indicates either ``MATLAB`` or ``MCR``.
518 matlab_get_all_valid_matlab_roots_from_registry(
523 the versions of each of the Matlab or MCR installations
525 the location of each of the Matlab or MCR installations
526 #]=======================================================================]
527 function(matlab_get_all_valid_matlab_roots_from_registry matlab_versions matlab_roots)
529 # The matlab_versions comes either from
530 # extract_matlab_versions_from_registry_brute_force or
531 # matlab_extract_all_installed_versions_from_registry.
533 set(_matlab_roots_list )
534 # check for Matlab installations
535 foreach(_matlab_current_version ${matlab_versions})
536 get_filename_component(
538 "[HKEY_LOCAL_MACHINE\\SOFTWARE\\MathWorks\\MATLAB\\${_matlab_current_version};MATLABROOT]"
541 if(EXISTS "${current_MATLAB_ROOT}")
542 list(APPEND _matlab_roots_list "MATLAB" ${_matlab_current_version} ${current_MATLAB_ROOT})
547 # Check for MCR installations
548 foreach(_matlab_current_version ${matlab_versions})
549 get_filename_component(
551 "[HKEY_LOCAL_MACHINE\\SOFTWARE\\MathWorks\\MATLAB Runtime\\${_matlab_current_version};MATLABROOT]"
555 string(REPLACE "." "" _matlab_current_version_without_dot "${_matlab_current_version}")
557 if(EXISTS "${current_MATLAB_ROOT}")
558 list(APPEND _matlab_roots_list "MCR" ${_matlab_current_version} "${current_MATLAB_ROOT}/v${_matlab_current_version_without_dot}")
563 # Check for old MCR installations
564 foreach(_matlab_current_version ${matlab_versions})
565 get_filename_component(
567 "[HKEY_LOCAL_MACHINE\\SOFTWARE\\MathWorks\\MATLAB Compiler Runtime\\${_matlab_current_version};MATLABROOT]"
571 string(REPLACE "." "" _matlab_current_version_without_dot "${_matlab_current_version}")
573 if(EXISTS "${current_MATLAB_ROOT}")
574 list(APPEND _matlab_roots_list "MCR" ${_matlab_current_version} "${current_MATLAB_ROOT}/v${_matlab_current_version_without_dot}")
578 set(${matlab_roots} ${_matlab_roots_list} PARENT_SCOPE)
581 #[=======================================================================[.rst:
582 .. command:: matlab_get_mex_suffix
584 Returns the extension of the mex files (the suffixes).
585 This function should not be called before the appropriate Matlab root has
590 matlab_get_mex_suffix(
595 the root of the Matlab/MCR installation
597 the variable name in which the suffix will be returned.
598 #]=======================================================================]
599 function(matlab_get_mex_suffix matlab_root mex_suffix)
601 # todo setup the extension properly. Currently I do not know if this is
602 # sufficient for all win32 distributions.
603 # there is also CMAKE_EXECUTABLE_SUFFIX that could be tweaked
604 set(mexext_suffix "")
606 list(APPEND mexext_suffix ".bat")
609 # we first try without suffix, since cmake does not understand a list with
610 # one empty string element
612 Matlab_MEXEXTENSIONS_PROG
614 PATHS ${matlab_root}/bin
615 DOC "Matlab MEX extension provider"
619 foreach(current_mexext_suffix IN LISTS mexext_suffix)
620 if(NOT DEFINED Matlab_MEXEXTENSIONS_PROG OR NOT Matlab_MEXEXTENSIONS_PROG)
621 # this call should populate the cache automatically
623 Matlab_MEXEXTENSIONS_PROG
624 "mexext${current_mexext_suffix}"
625 PATHS ${matlab_root}/bin
626 DOC "Matlab MEX extension provider"
630 endforeach(current_mexext_suffix)
631 if(MATLAB_FIND_DEBUG)
632 message(STATUS "[MATLAB] Determining mex files extensions from '${matlab_root}/bin' with program '${Matlab_MEXEXTENSIONS_PROG}'")
635 # the program has been found?
636 if((NOT Matlab_MEXEXTENSIONS_PROG) OR (NOT EXISTS ${Matlab_MEXEXTENSIONS_PROG}))
637 if(MATLAB_FIND_DEBUG)
638 message(WARNING "[MATLAB] Cannot found mexext program. Matlab root is ${matlab_root}")
640 unset(Matlab_MEXEXTENSIONS_PROG CACHE)
644 set(_matlab_mex_extension)
648 set(devnull INPUT_FILE /dev/null)
650 set(devnull INPUT_FILE NUL)
654 # this environment variable is used to determine the arch on Windows
655 if(CMAKE_SIZEOF_VOID_P EQUAL 8)
656 set(ENV{MATLAB_ARCH} "win64")
658 set(ENV{MATLAB_ARCH} "win32")
662 # this is the preferred way. If this does not work properly (eg. MCR on Windows), then we use our own knowledge
664 COMMAND ${Matlab_MEXEXTENSIONS_PROG}
665 OUTPUT_VARIABLE _matlab_mex_extension
666 ERROR_VARIABLE _matlab_mex_extension_error
667 OUTPUT_STRIP_TRAILING_WHITESPACE
669 unset(ENV{MATLAB_ARCH})
671 if(_matlab_mex_extension_error)
673 # this is only for intel architecture
674 if(CMAKE_SIZEOF_VOID_P EQUAL 8)
675 set(_matlab_mex_extension "mexw64")
677 set(_matlab_mex_extension "mexw32")
682 string(STRIP "${_matlab_mex_extension}" _matlab_mex_extension)
683 if(MATLAB_FIND_DEBUG)
684 message(STATUS "[MATLAB] '${Matlab_MEXEXTENSIONS_PROG}' : determined extension '${_matlab_mex_extension}' and error string is '${_matlab_mex_extension_error}'")
687 unset(Matlab_MEXEXTENSIONS_PROG CACHE)
688 set(${mex_suffix} ${_matlab_mex_extension} PARENT_SCOPE)
694 #[=======================================================================[.rst:
695 .. command:: matlab_get_version_from_matlab_run
697 This function runs Matlab program specified on arguments and extracts its
698 version. If the path provided for the Matlab installation points to an MCR
699 installation, the version is extracted from the installed files.
703 matlab_get_version_from_matlab_run(
705 matlab_list_versions)
707 ``matlab_binary_path``
708 the location of the `matlab` binary executable
709 ``matlab_list_versions``
710 the version extracted from Matlab
711 #]=======================================================================]
712 function(matlab_get_version_from_matlab_run matlab_binary_program matlab_list_versions)
714 set(${matlab_list_versions} "" PARENT_SCOPE)
716 if(MATLAB_FIND_DEBUG)
717 message(STATUS "[MATLAB] Determining the version of Matlab from ${matlab_binary_program}")
720 if(EXISTS "${_matlab_temporary_folder}/matlabVersionLog.cmaketmp")
721 if(MATLAB_FIND_DEBUG)
722 message(STATUS "[MATLAB] Removing previous ${_matlab_temporary_folder}/matlabVersionLog.cmaketmp file")
724 file(REMOVE "${_matlab_temporary_folder}/matlabVersionLog.cmaketmp")
728 # the log file is needed since on windows the command executes in a new
729 # window and it is not possible to get back the answer of Matlab
730 # the -wait command is needed on windows, otherwise the call returns
731 # immediately after the program launches itself.
733 set(_matlab_additional_commands "-wait")
738 set(devnull INPUT_FILE /dev/null)
740 set(devnull INPUT_FILE NUL)
743 # timeout set to 120 seconds, in case it does not start
744 # note as said before OUTPUT_VARIABLE cannot be used in a platform
745 # independent manner however, not setting it would flush the output of Matlab
746 # in the current console (unix variant)
748 COMMAND "${matlab_binary_program}" -nosplash -nojvm ${_matlab_additional_commands} -logfile "matlabVersionLog.cmaketmp" -nodesktop -nodisplay -r "version, exit"
749 OUTPUT_VARIABLE _matlab_version_from_cmd_dummy
750 RESULT_VARIABLE _matlab_result_version_call
751 ERROR_VARIABLE _matlab_result_version_call_error
753 WORKING_DIRECTORY "${_matlab_temporary_folder}"
757 if(_matlab_result_version_call MATCHES "timeout")
758 if(MATLAB_FIND_DEBUG)
759 message(WARNING "[MATLAB] Unable to determine the version of Matlab."
760 " Matlab call timed out after 120 seconds.")
765 if(${_matlab_result_version_call})
766 if(MATLAB_FIND_DEBUG)
767 message(WARNING "[MATLAB] Unable to determine the version of Matlab. Matlab call returned with error ${_matlab_result_version_call}.")
770 elseif(NOT EXISTS "${_matlab_temporary_folder}/matlabVersionLog.cmaketmp")
771 if(MATLAB_FIND_DEBUG)
772 message(WARNING "[MATLAB] Unable to determine the version of Matlab. The log file does not exist.")
777 # if successful, read back the log
778 file(READ "${_matlab_temporary_folder}/matlabVersionLog.cmaketmp" _matlab_version_from_cmd)
779 file(REMOVE "${_matlab_temporary_folder}/matlabVersionLog.cmaketmp")
782 string(FIND "${_matlab_version_from_cmd}" "ans" index)
785 if(MATLAB_FIND_DEBUG)
786 message(WARNING "[MATLAB] Cannot find the version of Matlab returned by the run.")
790 set(matlab_list_of_all_versions_tmp)
792 string(SUBSTRING "${_matlab_version_from_cmd}" ${index} -1 substring_ans)
794 REGEX MATCHALL "ans[\r\n\t ]*=[\r\n\t ]*'?([0-9]+(\\.[0-9]+)?)"
795 matlab_versions_regex
797 foreach(match IN LISTS matlab_versions_regex)
799 REGEX MATCH "ans[\r\n\t ]*=[\r\n\t ]*'?(([0-9]+)(\\.([0-9]+))?)"
800 current_match ${match})
802 list(APPEND matlab_list_of_all_versions_tmp ${CMAKE_MATCH_1})
804 if(matlab_list_of_all_versions_tmp)
805 list(REMOVE_DUPLICATES matlab_list_of_all_versions_tmp)
807 set(${matlab_list_versions} ${matlab_list_of_all_versions_tmp} PARENT_SCOPE)
813 #[=======================================================================[.rst:
814 .. command:: matlab_add_unit_test
816 Adds a Matlab unit test to the test set of cmake/ctest.
817 This command requires the component ``MAIN_PROGRAM`` and hence is not
818 available for an MCR installation.
820 The unit test uses the Matlab unittest framework (default, available
821 starting Matlab 2013b+) except if the option ``NO_UNITTEST_FRAMEWORK``
824 The function expects one Matlab test script file to be given.
825 In the case ``NO_UNITTEST_FRAMEWORK`` is given, the unittest script file
826 should contain the script to be run, plus an exit command with the exit
827 value. This exit value will be passed to the ctest framework (0 success,
828 non 0 failure). Additional arguments accepted by :command:`add_test` can be
829 passed through ``TEST_ARGS`` (eg. ``CONFIGURATION <config> ...``).
833 matlab_add_unit_test(
835 UNITTEST_FILE matlab_file_containing_unittest.m
836 [CUSTOM_TEST_COMMAND matlab_command_to_run_as_test]
837 [UNITTEST_PRECOMMAND matlab_command_to_run]
839 [ADDITIONAL_PATH path1 [path2 ...]]
840 [MATLAB_ADDITIONAL_STARTUP_OPTIONS option1 [option2 ...]]
841 [TEST_ARGS arg1 [arg2 ...]]
842 [NO_UNITTEST_FRAMEWORK]
845 The function arguments are:
848 name of the unittest in ctest.
850 the matlab unittest file. Its path will be automatically
851 added to the Matlab path.
852 ``CUSTOM_TEST_COMMAND``
853 Matlab script command to run as the test.
854 If this is not set, then the following is run:
855 ``runtests('matlab_file_name'), exit(max([ans(1,:).Failed]))``
856 where ``matlab_file_name`` is the ``UNITTEST_FILE`` without the extension.
857 ``UNITTEST_PRECOMMAND``
858 Matlab script command to be ran before the file
859 containing the test (eg. GPU device initialization based on CMake
862 the test timeout in seconds. Defaults to 180 seconds as the
863 Matlab unit test may hang.
865 a list of paths to add to the Matlab path prior to
866 running the unit test.
867 ``MATLAB_ADDITIONAL_STARTUP_OPTIONS``
868 a list of additional option in order
869 to run Matlab from the command line.
870 ``-nosplash -nodesktop -nodisplay`` are always added.
872 Additional options provided to the add_test command. These
873 options are added to the default options (eg. "CONFIGURATIONS Release")
874 ``NO_UNITTEST_FRAMEWORK``
875 when set, indicates that the test should not
876 use the unittest framework of Matlab (available for versions >= R2013a).
877 ``WORKING_DIRECTORY``
878 This will be the working directory for the test. If specified it will
879 also be the output directory used for the log file of the test run.
880 If not specified the temporary directory ``${CMAKE_BINARY_DIR}/Matlab`` will
881 be used as the working directory and the log location.
883 #]=======================================================================]
884 function(matlab_add_unit_test)
886 if(NOT Matlab_MAIN_PROGRAM)
887 message(FATAL_ERROR "[MATLAB] This functionality needs the MAIN_PROGRAM component (not default)")
890 set(options NO_UNITTEST_FRAMEWORK)
891 set(oneValueArgs NAME UNITTEST_FILE TIMEOUT WORKING_DIRECTORY
892 UNITTEST_PRECOMMAND CUSTOM_TEST_COMMAND)
893 set(multiValueArgs ADDITIONAL_PATH MATLAB_ADDITIONAL_STARTUP_OPTIONS TEST_ARGS)
895 set(prefix _matlab_unittest_prefix)
896 cmake_parse_arguments(PARSE_ARGV 0 ${prefix} "${options}" "${oneValueArgs}" "${multiValueArgs}" )
898 if(NOT ${prefix}_NAME)
899 message(FATAL_ERROR "[MATLAB] The Matlab test name cannot be empty")
902 add_test(NAME ${${prefix}_NAME}
903 COMMAND ${CMAKE_COMMAND}
904 "-Dtest_name=${${prefix}_NAME}"
905 "-Dadditional_paths=${${prefix}_ADDITIONAL_PATH}"
906 "-Dtest_timeout=${${prefix}_TIMEOUT}"
907 "-Doutput_directory=${_matlab_temporary_folder}"
908 "-Dworking_directory=${${prefix}_WORKING_DIRECTORY}"
909 "-DMatlab_PROGRAM=${Matlab_MAIN_PROGRAM}"
910 "-Dno_unittest_framework=${${prefix}_NO_UNITTEST_FRAMEWORK}"
911 "-DMatlab_ADDITIONAL_STARTUP_OPTIONS=${${prefix}_MATLAB_ADDITIONAL_STARTUP_OPTIONS}"
912 "-Dunittest_file_to_run=${${prefix}_UNITTEST_FILE}"
913 "-Dcustom_Matlab_test_command=${${prefix}_CUSTOM_TEST_COMMAND}"
914 "-Dcmd_to_run_before_test=${${prefix}_UNITTEST_PRECOMMAND}"
915 -P ${_FindMatlab_SELF_DIR}/MatlabTestsRedirect.cmake
916 ${${prefix}_TEST_ARGS}
917 ${${prefix}_UNPARSED_ARGUMENTS}
922 #[=======================================================================[.rst:
923 .. command:: matlab_add_mex
925 Adds a Matlab MEX target.
926 This commands compiles the given sources with the current tool-chain in
927 order to produce a MEX file. The final name of the produced output may be
928 specified, as well as additional link libraries, and a documentation entry
929 for the MEX file. Remaining arguments of the call are passed to the
930 :command:`add_library` or :command:`add_executable` command.
936 [EXECUTABLE | MODULE | SHARED]
938 [OUTPUT_NAME output_name]
939 [DOCUMENTATION file.txt]
940 [LINK_TO target1 target2 ...]
949 list of source files.
951 a list of additional link dependencies. The target links to ``libmex``
952 and ``libmx`` by default.
954 if given, overrides the default name. The default name is
955 the name of the target without any prefix and
956 with ``Matlab_MEX_EXTENSION`` suffix.
958 if given, the file ``file.txt`` will be considered as
959 being the documentation file for the MEX file. This file is copied into
960 the same folder without any processing, with the same name as the final
961 mex file, and with extension `.m`. In that case, typing ``help <name>``
962 in Matlab prints the documentation contained in this file.
963 ``R2017b`` or ``R2018a``
964 .. versionadded:: 3.14
966 May be given to specify the version of the C API
967 to use: ``R2017b`` specifies the traditional (separate complex) C API,
968 and corresponds to the ``-R2017b`` flag for the `mex` command. ``R2018a``
969 specifies the new interleaved complex C API, and corresponds to the
970 ``-R2018a`` flag for the `mex` command. Ignored if MATLAB version prior
971 to R2018a. Defaults to ``R2017b``.
973 ``MODULE`` or ``SHARED``
974 .. versionadded:: 3.7
976 May be given to specify the type of library to be
980 .. versionadded:: 3.7
982 May be given to create an executable instead of
983 a library. If no type is given explicitly, the type is ``SHARED``.
985 This option has the same meaning as for :prop_tgt:`EXCLUDE_FROM_ALL` and
986 is forwarded to :command:`add_library` or :command:`add_executable`
989 The documentation file is not processed and should be in the following
994 % This is the documentation
995 function ret = mex_target_output_name(input1)
997 #]=======================================================================]
998 function(matlab_add_mex)
1001 # we do not need all this on Windows
1003 if(CMAKE_CXX_COMPILER_LOADED)
1004 check_cxx_compiler_flag(-pthread HAS_MINUS_PTHREAD)
1005 elseif(CMAKE_C_COMPILER_LOADED)
1006 check_c_compiler_flag(-pthread HAS_MINUS_PTHREAD)
1008 # we should use try_compile instead, the link flags are discarded from
1009 # this compiler_flag function.
1010 #check_cxx_compiler_flag(-Wl,--exclude-libs,ALL HAS_SYMBOL_HIDING_CAPABILITY)
1014 set(options EXECUTABLE MODULE SHARED R2017b R2018a EXCLUDE_FROM_ALL)
1015 set(oneValueArgs NAME DOCUMENTATION OUTPUT_NAME)
1016 set(multiValueArgs LINK_TO SRC)
1018 set(prefix _matlab_addmex_prefix)
1019 cmake_parse_arguments(${prefix} "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN} )
1021 if(NOT ${prefix}_NAME)
1022 message(FATAL_ERROR "[MATLAB] The MEX target name cannot be empty")
1025 if(NOT ${prefix}_OUTPUT_NAME)
1026 set(${prefix}_OUTPUT_NAME ${${prefix}_NAME})
1029 if(NOT Matlab_VERSION_STRING VERSION_LESS "9.1") # For 9.1 (R2016b) and newer, add version source file
1030 # Add the correct version file depending on which languages are enabled in the project
1031 if(CMAKE_C_COMPILER_LOADED)
1032 # If C is enabled, use the .c file as it will work fine also with C++
1033 set(MEX_VERSION_FILE "${Matlab_ROOT_DIR}/extern/version/c_mexapi_version.c")
1034 elseif(CMAKE_CXX_COMPILER_LOADED)
1035 # If C is not enabled, check if CXX is enabled and use the .cpp file
1036 # to avoid that the .c file is silently ignored
1037 set(MEX_VERSION_FILE "${Matlab_ROOT_DIR}/extern/version/cpp_mexapi_version.cpp")
1039 # If neither C or CXX is enabled, warn because we cannot add the source.
1040 # TODO: add support for fortran mex files
1041 message(WARNING "[MATLAB] matlab_add_mex requires that at least C or CXX are enabled languages")
1045 # For 9.4 (R2018a) and newer, add API macro.
1046 # Add it for unknown versions too, just in case.
1047 if(NOT Matlab_VERSION_STRING VERSION_LESS "9.4"
1048 OR Matlab_VERSION_STRING STREQUAL "unknown")
1049 if(${${prefix}_R2018a})
1050 set(MEX_API_MACRO "MATLAB_DEFAULT_RELEASE=R2018a")
1052 set(MEX_API_MACRO "MATLAB_DEFAULT_RELEASE=R2017b")
1056 set(_option_EXCLUDE_FROM_ALL)
1057 if(${prefix}_EXCLUDE_FROM_ALL)
1058 set(_option_EXCLUDE_FROM_ALL "EXCLUDE_FROM_ALL")
1061 if(${prefix}_EXECUTABLE)
1062 add_executable(${${prefix}_NAME}
1063 ${_option_EXCLUDE_FROM_ALL}
1066 ${${prefix}_DOCUMENTATION}
1067 ${${prefix}_UNPARSED_ARGUMENTS})
1069 if(${prefix}_MODULE)
1075 add_library(${${prefix}_NAME}
1077 ${_option_EXCLUDE_FROM_ALL}
1080 ${${prefix}_DOCUMENTATION}
1081 ${${prefix}_UNPARSED_ARGUMENTS})
1084 target_include_directories(${${prefix}_NAME} PRIVATE ${Matlab_INCLUDE_DIRS})
1086 if(Matlab_HAS_CPP_API)
1087 if(Matlab_ENGINE_LIBRARY)
1088 target_link_libraries(${${prefix}_NAME} ${Matlab_ENGINE_LIBRARY})
1090 if(Matlab_DATAARRAY_LIBRARY)
1091 target_link_libraries(${${prefix}_NAME} ${Matlab_DATAARRAY_LIBRARY})
1095 target_link_libraries(${${prefix}_NAME} ${Matlab_MEX_LIBRARY} ${Matlab_MX_LIBRARY} ${${prefix}_LINK_TO})
1096 set_target_properties(${${prefix}_NAME}
1099 OUTPUT_NAME ${${prefix}_OUTPUT_NAME}
1100 SUFFIX ".${Matlab_MEX_EXTENSION}")
1102 target_compile_definitions(${${prefix}_NAME} PRIVATE ${MEX_API_MACRO} MATLAB_MEX_FILE)
1105 if(NOT ${${prefix}_DOCUMENTATION} STREQUAL "")
1106 get_target_property(output_name ${${prefix}_NAME} OUTPUT_NAME)
1108 TARGET ${${prefix}_NAME}
1110 COMMAND ${CMAKE_COMMAND} -E copy_if_different ${${prefix}_DOCUMENTATION} $<TARGET_FILE_DIR:${${prefix}_NAME}>/${output_name}.m
1111 COMMENT "[MATLAB] Copy ${${prefix}_NAME} documentation file into the output folder"
1113 endif() # documentation
1115 # entry point in the mex file + taking care of visibility and symbol clashes.
1120 set(_link_flags "${_link_flags} /EXPORT:mexFunction")
1121 if(NOT Matlab_VERSION_STRING VERSION_LESS "9.1") # For 9.1 (R2016b) and newer, export version
1122 set(_link_flags "${_link_flags} /EXPORT:mexfilerequiredapiversion")
1125 set_property(TARGET ${${prefix}_NAME} APPEND PROPERTY LINK_FLAGS ${_link_flags})
1127 endif() # No other compiler currently supported on Windows.
1129 set_target_properties(${${prefix}_NAME}
1131 DEFINE_SYMBOL "DLL_EXPORT_SYM=__declspec(dllexport)")
1135 if(Matlab_VERSION_STRING VERSION_LESS "9.1") # For versions prior to 9.1 (R2016b)
1136 set(_ver_map_files ${Matlab_EXTERN_LIBRARY_DIR}/mexFunction.map)
1137 else() # For 9.1 (R2016b) and newer
1138 set(_ver_map_files ${Matlab_EXTERN_LIBRARY_DIR}/c_exportsmexfileversion.map)
1141 if(NOT Matlab_VERSION_STRING VERSION_LESS "9.5") # For 9.5 (R2018b) (and newer?)
1142 target_compile_options(${${prefix}_NAME} PRIVATE "-fvisibility=default")
1143 # This one is weird, it might be a bug in <mex.h> for R2018b. When compiling with
1144 # -fvisibility=hidden, the symbol `mexFunction` cannot be exported. Reading the
1145 # source code for <mex.h>, it seems that the preprocessor macro `MW_NEEDS_VERSION_H`
1146 # needs to be defined for `__attribute__((visibility("default")))` to be added
1147 # in front of the declaration of `mexFunction`. In previous versions of MATLAB this
1148 # was not the case, there `DLL_EXPORT_SYM` needed to be defined.
1149 # Adding `-fvisibility=hidden` to the `mex` command causes the build to fail.
1150 # TODO: Check that this is still necessary in R2019a when it comes out.
1155 if(Matlab_HAS_CPP_API)
1156 list(APPEND _ver_map_files ${Matlab_EXTERN_LIBRARY_DIR}/cppMexFunction.map) # This one doesn't exist on Linux
1157 set(_link_flags "${_link_flags} -Wl,-U,_mexCreateMexFunction -Wl,-U,_mexDestroyMexFunction -Wl,-U,_mexFunctionAdapter")
1158 # On MacOS, the MEX command adds the above, without it the link breaks
1159 # because we indiscriminately use "cppMexFunction.map" even for C API MEX-files.
1162 set(_export_flag_name -exported_symbols_list)
1166 if(HAS_MINUS_PTHREAD)
1167 # Apparently, compiling with -pthread generated the proper link flags
1168 # and some defines at compilation
1169 target_compile_options(${${prefix}_NAME} PRIVATE "-pthread")
1172 set(_link_flags "${_link_flags} -Wl,--as-needed")
1174 set(_export_flag_name --version-script)
1178 foreach(_file ${_ver_map_files})
1179 set(_link_flags "${_link_flags} -Wl,${_export_flag_name},${_file}")
1182 # The `mex` command doesn't add this define. It is specified here in order
1183 # to export the symbol in case the client code decides to hide its symbols
1184 set_target_properties(${${prefix}_NAME}
1186 DEFINE_SYMBOL "DLL_EXPORT_SYM=__attribute__((visibility(\"default\")))"
1187 LINK_FLAGS "${_link_flags}"
1196 # Used to get the version of matlab, using caching. This basically transforms the
1197 # output of the root list, with possible unknown version, to a version
1198 # This can possibly run Matlab for extracting the version.
1199 function(_Matlab_get_version_from_root matlab_root matlab_or_mcr matlab_known_version matlab_final_version)
1201 # if the version is not trivial, we query matlab (if not MCR) for that
1202 # we keep track of the location of matlab that induced this version
1203 #if(NOT DEFINED Matlab_PROG_VERSION_STRING_AUTO_DETECT)
1204 # set(Matlab_PROG_VERSION_STRING_AUTO_DETECT "" CACHE INTERNAL "internal matlab location for the discovered version")
1207 if(NOT matlab_known_version STREQUAL "NOTFOUND")
1208 # the version is known, we just return it
1209 set(${matlab_final_version} ${matlab_known_version} PARENT_SCOPE)
1210 set(Matlab_VERSION_STRING_INTERNAL ${matlab_known_version} CACHE INTERNAL "Matlab version (automatically determined)" FORCE)
1214 if(matlab_or_mcr STREQUAL "UNKNOWN")
1215 if(MATLAB_FIND_DEBUG)
1216 message(WARNING "[MATLAB] Determining Matlab or MCR")
1219 if(EXISTS "${matlab_root}/appdata/version.xml")
1220 # we inspect the application version.xml file that contains the product information
1221 file(STRINGS "${matlab_root}/appdata/version.xml" productinfo_string NEWLINE_CONSUME)
1222 string(REGEX MATCH "<installedProductData.*displayedString=\"([a-zA-Z ]+)\".*/>"
1224 ${productinfo_string}
1227 # default fallback to Matlab
1228 set(matlab_or_mcr "MATLAB")
1229 if(NOT CMAKE_MATCH_1 STREQUAL "")
1230 string(TOLOWER "${CMAKE_MATCH_1}" product_reg_match)
1232 if(product_reg_match STREQUAL "matlab runtime")
1233 set(matlab_or_mcr "MCR")
1238 if(MATLAB_FIND_DEBUG)
1239 message(WARNING "[MATLAB] '${matlab_root}' contains the '${matlab_or_mcr}'")
1243 # UNKNOWN is the default behavior in case we
1244 # - have an erroneous matlab_root
1245 # - have an initial 'UNKNOWN'
1246 if(matlab_or_mcr STREQUAL "MATLAB" OR matlab_or_mcr STREQUAL "UNKNOWN")
1248 set(_matlab_current_program ${Matlab_MAIN_PROGRAM})
1250 # do we already have a matlab program?
1251 if(NOT _matlab_current_program)
1253 set(_find_matlab_options)
1254 if(matlab_root AND EXISTS ${matlab_root})
1255 set(_find_matlab_options PATHS ${matlab_root} ${matlab_root}/bin NO_DEFAULT_PATH)
1259 _matlab_current_program
1261 ${_find_matlab_options}
1262 DOC "Matlab main program"
1266 if(NOT _matlab_current_program OR NOT EXISTS ${_matlab_current_program})
1267 # if not found, clear the dependent variables
1268 if(MATLAB_FIND_DEBUG)
1269 message(WARNING "[MATLAB] Cannot find the main matlab program under ${matlab_root}")
1271 set(Matlab_PROG_VERSION_STRING_AUTO_DETECT "" CACHE INTERNAL "internal matlab location for the discovered version" FORCE)
1272 set(Matlab_VERSION_STRING_INTERNAL "" CACHE INTERNAL "internal matlab location for the discovered version" FORCE)
1273 unset(_matlab_current_program)
1274 unset(_matlab_current_program CACHE)
1278 # full real path for path comparison
1279 get_filename_component(_matlab_main_real_path_tmp "${_matlab_current_program}" REALPATH)
1280 unset(_matlab_current_program)
1281 unset(_matlab_current_program CACHE)
1283 # is it the same as the previous one?
1284 if(_matlab_main_real_path_tmp STREQUAL Matlab_PROG_VERSION_STRING_AUTO_DETECT)
1285 set(${matlab_final_version} ${Matlab_VERSION_STRING_INTERNAL} PARENT_SCOPE)
1289 # update the location of the program
1290 set(Matlab_PROG_VERSION_STRING_AUTO_DETECT
1291 ${_matlab_main_real_path_tmp}
1292 CACHE INTERNAL "internal matlab location for the discovered version" FORCE)
1294 set(matlab_list_of_all_versions)
1295 matlab_get_version_from_matlab_run("${Matlab_PROG_VERSION_STRING_AUTO_DETECT}" matlab_list_of_all_versions)
1297 list(LENGTH matlab_list_of_all_versions list_of_all_versions_length)
1298 if(list_of_all_versions_length GREATER 0)
1299 list(GET matlab_list_of_all_versions 0 _matlab_version_tmp)
1301 set(_matlab_version_tmp "unknown")
1304 # set the version into the cache
1305 set(Matlab_VERSION_STRING_INTERNAL ${_matlab_version_tmp} CACHE INTERNAL "Matlab version (automatically determined)" FORCE)
1307 # warning, just in case several versions found (should not happen)
1308 if((list_of_all_versions_length GREATER 1) AND MATLAB_FIND_DEBUG)
1309 message(WARNING "[MATLAB] Found several versions, taking the first one (versions found ${matlab_list_of_all_versions})")
1312 # return the updated value
1313 set(${matlab_final_version} ${Matlab_VERSION_STRING_INTERNAL} PARENT_SCOPE)
1314 elseif(EXISTS "${matlab_root}/VersionInfo.xml")
1316 # we cannot run anything in order to extract the version. We assume that the file
1317 # VersionInfo.xml exists under the MatlabRoot, we look for it and extract the version from there
1318 set(_matlab_version_tmp "unknown")
1319 file(STRINGS "${matlab_root}/VersionInfo.xml" versioninfo_string NEWLINE_CONSUME)
1321 if(versioninfo_string)
1322 # parses "<version>9.2.0.538062</version>"
1323 string(REGEX MATCH "<version>(.*)</version>"
1325 ${versioninfo_string}
1328 if(CMAKE_MATCH_1 MATCHES "(([0-9])\\.([0-9]))[\\.0-9]*")
1329 set(_matlab_version_tmp "${CMAKE_MATCH_1}")
1332 set(${matlab_final_version} "${_matlab_version_tmp}" PARENT_SCOPE)
1333 set(Matlab_VERSION_STRING_INTERNAL
1334 "${_matlab_version_tmp}"
1335 CACHE INTERNAL "Matlab (MCR) version (automatically determined)"
1337 endif() # Matlab or MCR
1342 # Utility function for finding Matlab or MCR on Win32
1343 function(_Matlab_find_instances_win32 matlab_roots)
1344 # On WIN32, we look for Matlab installation in the registry
1345 # if unsuccessful, we look for all known revision and filter the existing
1348 # testing if we are able to extract the needed information from the registry
1349 set(_matlab_versions_from_registry)
1351 if(CMAKE_SIZEOF_VOID_P EQUAL 8)
1352 set(_matlab_win64 ON)
1354 set(_matlab_win64 OFF)
1357 matlab_extract_all_installed_versions_from_registry(_matlab_win64 _matlab_versions_from_registry)
1359 # the returned list is empty, doing the search on all known versions
1360 if(NOT _matlab_versions_from_registry)
1361 if(MATLAB_FIND_DEBUG)
1362 message(STATUS "[MATLAB] Search for Matlab from the registry unsuccessful, testing all supported versions")
1364 extract_matlab_versions_from_registry_brute_force(_matlab_versions_from_registry)
1367 # filtering the results with the registry keys
1368 matlab_get_all_valid_matlab_roots_from_registry("${_matlab_versions_from_registry}" _matlab_possible_roots)
1369 set(${matlab_roots} ${_matlab_possible_roots} PARENT_SCOPE)
1373 # Utility function for finding Matlab or MCR on OSX
1374 function(_Matlab_find_instances_osx matlab_roots)
1376 set(_matlab_possible_roots)
1377 # on mac, we look for the /Application paths
1378 # this corresponds to the behavior on Windows. On Linux, we do not have
1380 matlab_get_supported_releases(_matlab_releases)
1381 if(MATLAB_FIND_DEBUG)
1382 message(STATUS "[MATLAB] Matlab supported versions ${_matlab_releases}. If more version should be supported "
1383 "the variable MATLAB_ADDITIONAL_VERSIONS can be set according to the documentation")
1386 foreach(_matlab_current_release IN LISTS _matlab_releases)
1387 matlab_get_version_from_release_name("${_matlab_current_release}" _matlab_current_version)
1388 string(REPLACE "." "" _matlab_current_version_without_dot "${_matlab_current_version}")
1389 set(_matlab_base_path "/Applications/MATLAB_${_matlab_current_release}.app")
1391 # Check Matlab, has precedence over MCR
1392 if(EXISTS ${_matlab_base_path})
1393 if(MATLAB_FIND_DEBUG)
1394 message(STATUS "[MATLAB] Found version ${_matlab_current_release} (${_matlab_current_version}) in ${_matlab_base_path}")
1396 list(APPEND _matlab_possible_roots "MATLAB" ${_matlab_current_version} ${_matlab_base_path})
1400 set(_mcr_path "/Applications/MATLAB/MATLAB_Runtime/v${_matlab_current_version_without_dot}")
1401 if(EXISTS "${_mcr_path}")
1402 if(MATLAB_FIND_DEBUG)
1403 message(STATUS "[MATLAB] Found MCR version ${_matlab_current_release} (${_matlab_current_version}) in ${_mcr_path}")
1405 list(APPEND _matlab_possible_roots "MCR" ${_matlab_current_version} ${_mcr_path})
1409 set(${matlab_roots} ${_matlab_possible_roots} PARENT_SCOPE)
1413 # Utility function for finding Matlab or MCR from the PATH
1414 function(_Matlab_find_instances_from_path matlab_roots)
1416 set(_matlab_possible_roots)
1418 # At this point, we have no other choice than trying to find it from PATH.
1419 # If set by the user, this won't change.
1424 if(_matlab_main_tmp)
1425 # we then populate the list of roots, with empty version
1426 if(MATLAB_FIND_DEBUG)
1427 message(STATUS "[MATLAB] matlab found from PATH: ${_matlab_main_tmp}")
1431 get_filename_component(_matlab_current_location "${_matlab_main_tmp}" REALPATH)
1433 # get the directory (the command below has to be run twice)
1434 # this will be the matlab root
1435 get_filename_component(_matlab_current_location "${_matlab_current_location}" DIRECTORY)
1436 get_filename_component(_matlab_current_location "${_matlab_current_location}" DIRECTORY) # Matlab should be in bin
1438 # We found the Matlab program
1439 list(APPEND _matlab_possible_roots "MATLAB" "NOTFOUND" ${_matlab_current_location})
1441 # we remove this from the CACHE
1442 unset(_matlab_main_tmp CACHE)
1448 # we then populate the list of roots, with empty version
1449 if(MATLAB_FIND_DEBUG)
1450 message(STATUS "[MATLAB] mex compiler found from PATH: ${_matlab_mex_tmp}")
1454 get_filename_component(_mex_current_location "${_matlab_mex_tmp}" REALPATH)
1456 # get the directory (the command below has to be run twice)
1457 # this will be the matlab root
1458 get_filename_component(_mex_current_location "${_mex_current_location}" DIRECTORY)
1459 get_filename_component(_mex_current_location "${_mex_current_location}" DIRECTORY) # Matlab Runtime mex compiler should be in bin
1461 # We found the Matlab program
1462 list(APPEND _matlab_possible_roots "MCR" "NOTFOUND" ${_mex_current_location})
1464 unset(_matlab_mex_tmp CACHE)
1466 if(MATLAB_FIND_DEBUG)
1467 message(STATUS "[MATLAB] mex compiler not found")
1474 set(${matlab_roots} ${_matlab_possible_roots} PARENT_SCOPE)
1478 # ###################################
1479 # Exploring the possible Matlab_ROOTS
1481 # this variable will get all Matlab installations found in the current system.
1482 set(_matlab_possible_roots)
1485 # if the user specifies a possible root, we keep this one
1487 if(NOT EXISTS "${Matlab_ROOT_DIR}")
1488 # if Matlab_ROOT_DIR specified but erroneous
1489 if(MATLAB_FIND_DEBUG)
1490 message(WARNING "[MATLAB] the specified path for Matlab_ROOT_DIR does not exist (${Matlab_ROOT_DIR})")
1493 # NOTFOUND indicates the code below to search for the version automatically
1494 if("${Matlab_VERSION_STRING_INTERNAL}" STREQUAL "")
1495 list(APPEND _matlab_possible_roots "UNKNOWN" "NOTFOUND" ${Matlab_ROOT_DIR}) # empty version, empty MCR/Matlab indication
1497 list(APPEND _matlab_possible_roots "UNKNOWN" ${Matlab_VERSION_STRING_INTERNAL} ${Matlab_ROOT_DIR}) # cached version
1502 # if the user does not specify the possible installation root, we look for
1503 # one installation using the appropriate heuristics.
1504 # There is apparently no standard way on Linux.
1505 if(CMAKE_HOST_WIN32)
1506 _Matlab_find_instances_win32(_matlab_possible_roots_win32)
1507 list(APPEND _matlab_possible_roots ${_matlab_possible_roots_win32})
1509 _Matlab_find_instances_osx(_matlab_possible_roots_osx)
1510 list(APPEND _matlab_possible_roots ${_matlab_possible_roots_osx})
1515 list(LENGTH _matlab_possible_roots _numbers_of_matlab_roots)
1516 if(_numbers_of_matlab_roots EQUAL 0)
1517 # if we have not found anything, we fall back on the PATH
1518 _Matlab_find_instances_from_path(_matlab_possible_roots)
1522 if(MATLAB_FIND_DEBUG)
1523 message(STATUS "[MATLAB] Matlab root folders are ${_matlab_possible_roots}")
1530 # take the first possible Matlab root
1531 list(LENGTH _matlab_possible_roots _numbers_of_matlab_roots)
1532 set(Matlab_VERSION_STRING "NOTFOUND")
1533 set(Matlab_Or_MCR "UNKNOWN")
1534 if(_numbers_of_matlab_roots GREATER 0)
1535 if(Matlab_FIND_VERSION_EXACT)
1536 list(FIND _matlab_possible_roots ${Matlab_FIND_VERSION} _list_index)
1537 if(_list_index LESS 0)
1541 math(EXPR _matlab_or_mcr_index "${_list_index} - 1")
1542 math(EXPR _matlab_root_dir_index "${_list_index} + 1")
1544 list(GET _matlab_possible_roots ${_matlab_or_mcr_index} Matlab_Or_MCR)
1545 list(GET _matlab_possible_roots ${_list_index} Matlab_VERSION_STRING)
1546 list(GET _matlab_possible_roots ${_matlab_root_dir_index} Matlab_ROOT_DIR)
1548 list(GET _matlab_possible_roots 0 Matlab_Or_MCR)
1549 list(GET _matlab_possible_roots 1 Matlab_VERSION_STRING)
1550 list(GET _matlab_possible_roots 2 Matlab_ROOT_DIR)
1552 # adding a warning in case of ambiguity
1553 if(_numbers_of_matlab_roots GREATER 3 AND MATLAB_FIND_DEBUG)
1554 message(WARNING "[MATLAB] Found several distributions of Matlab. Setting the current version to ${Matlab_VERSION_STRING} (located ${Matlab_ROOT_DIR})."
1555 " If this is not the desired behavior, use the EXACT keyword or provide the -DMatlab_ROOT_DIR=... on the command line")
1561 # check if the root changed wrt. the previous defined one, if so
1562 # clear all the cached variables for being able to reconfigure properly
1563 if(DEFINED Matlab_ROOT_DIR_LAST_CACHED)
1565 if(NOT Matlab_ROOT_DIR_LAST_CACHED STREQUAL Matlab_ROOT_DIR)
1566 set(_Matlab_cached_vars
1567 Matlab_VERSION_STRING
1576 Matlab_ENGINE_LIBRARY
1577 Matlab_DATAARRAY_LIBRARY
1578 Matlab_MEX_EXTENSION
1579 Matlab_SIMULINK_INCLUDE_DIR
1582 Matlab_MEXEXTENSIONS_PROG
1583 Matlab_ROOT_DIR_LAST_CACHED
1584 #Matlab_PROG_VERSION_STRING_AUTO_DETECT
1585 #Matlab_VERSION_STRING_INTERNAL
1587 foreach(_var IN LISTS _Matlab_cached_vars)
1589 unset(${_var} CACHE)
1595 set(Matlab_ROOT_DIR_LAST_CACHED ${Matlab_ROOT_DIR} CACHE INTERNAL "last Matlab root dir location")
1596 set(Matlab_ROOT_DIR ${Matlab_ROOT_DIR} CACHE PATH "Matlab installation root path" FORCE)
1598 # Fix the version, in case this one is NOTFOUND
1599 _Matlab_get_version_from_root(
1600 "${Matlab_ROOT_DIR}"
1602 ${Matlab_VERSION_STRING}
1603 Matlab_VERSION_STRING
1606 if(MATLAB_FIND_DEBUG)
1607 message(STATUS "[MATLAB] Current version is ${Matlab_VERSION_STRING} located ${Matlab_ROOT_DIR}")
1610 # MATLAB 9.4 (R2018a) and newer have a new C++ API
1611 # This API pulls additional required libraries.
1612 if(NOT ${Matlab_VERSION_STRING} VERSION_LESS "9.4")
1613 set(Matlab_HAS_CPP_API 1)
1617 file(TO_CMAKE_PATH ${Matlab_ROOT_DIR} Matlab_ROOT_DIR)
1620 if(CMAKE_SIZEOF_VOID_P EQUAL 4)
1621 set(_matlab_64Build FALSE)
1623 set(_matlab_64Build TRUE)
1627 set(_matlab_bin_prefix "mac") # i should be for intel
1628 set(_matlab_bin_suffix_32bits "i")
1629 set(_matlab_bin_suffix_64bits "i64")
1631 set(_matlab_bin_prefix "gln")
1632 set(_matlab_bin_suffix_32bits "x86")
1633 set(_matlab_bin_suffix_64bits "xa64")
1635 set(_matlab_bin_prefix "win")
1636 set(_matlab_bin_suffix_32bits "32")
1637 set(_matlab_bin_suffix_64bits "64")
1642 set(MATLAB_INCLUDE_DIR_TO_LOOK ${Matlab_ROOT_DIR}/extern/include)
1644 set(_matlab_current_suffix ${_matlab_bin_suffix_64bits})
1646 set(_matlab_current_suffix ${_matlab_bin_suffix_32bits})
1649 set(Matlab_BINARIES_DIR
1650 ${Matlab_ROOT_DIR}/bin/${_matlab_bin_prefix}${_matlab_current_suffix})
1651 set(Matlab_EXTERN_LIBRARY_DIR
1652 ${Matlab_ROOT_DIR}/extern/lib/${_matlab_bin_prefix}${_matlab_current_suffix})
1653 set(Matlab_EXTERN_BINARIES_DIR
1654 ${Matlab_ROOT_DIR}/extern/bin/${_matlab_bin_prefix}${_matlab_current_suffix})
1658 set(_matlab_lib_dir_for_search ${Matlab_EXTERN_LIBRARY_DIR}/mingw64)
1660 set(_matlab_lib_dir_for_search ${Matlab_EXTERN_LIBRARY_DIR}/microsoft)
1662 set(_matlab_lib_prefix_for_search "lib")
1664 set(_matlab_lib_dir_for_search ${Matlab_BINARIES_DIR} ${Matlab_EXTERN_BINARIES_DIR})
1665 set(_matlab_lib_prefix_for_search "lib")
1668 unset(_matlab_64Build)
1671 if(NOT DEFINED Matlab_MEX_EXTENSION)
1672 set(_matlab_mex_extension "")
1673 matlab_get_mex_suffix("${Matlab_ROOT_DIR}" _matlab_mex_extension)
1675 # This variable goes to the cache.
1676 set(Matlab_MEX_EXTENSION ${_matlab_mex_extension} CACHE STRING "Extensions for the mex targets (automatically given by Matlab)")
1677 unset(_matlab_mex_extension)
1681 if(MATLAB_FIND_DEBUG)
1682 message(STATUS "[MATLAB] [DEBUG]_matlab_lib_prefix_for_search = ${_matlab_lib_prefix_for_search} | _matlab_lib_dir_for_search = ${_matlab_lib_dir_for_search}")
1688 # This small stub around find_library is to prevent any pollution of CMAKE_FIND_LIBRARY_PREFIXES in the global scope.
1689 # This is the function to be used below instead of the find_library directives.
1690 function(_Matlab_find_library _matlab_library_prefix)
1691 set(CMAKE_FIND_LIBRARY_PREFIXES ${CMAKE_FIND_LIBRARY_PREFIXES} ${_matlab_library_prefix})
1692 find_library(${ARGN})
1696 set(_matlab_required_variables)
1698 # Order is as follow:
1699 # - unconditionally required libraries/headers first
1700 # - then library components
1701 # - then program components
1703 # the MEX library/header are required
1707 PATHS ${MATLAB_INCLUDE_DIR_TO_LOOK}
1710 list(APPEND _matlab_required_variables Matlab_INCLUDE_DIRS)
1712 if(Matlab_Or_MCR STREQUAL "MATLAB" OR Matlab_Or_MCR STREQUAL "UNKNOWN")
1713 _Matlab_find_library(
1714 ${_matlab_lib_prefix_for_search}
1717 PATHS ${_matlab_lib_dir_for_search}
1720 list(APPEND _matlab_required_variables Matlab_MEX_LIBRARY)
1722 # the MEX extension is required
1723 list(APPEND _matlab_required_variables Matlab_MEX_EXTENSION)
1725 # the matlab root is required
1726 list(APPEND _matlab_required_variables Matlab_ROOT_DIR)
1728 # The MX library is required
1729 _Matlab_find_library(
1730 ${_matlab_lib_prefix_for_search}
1733 PATHS ${_matlab_lib_dir_for_search}
1736 list(APPEND _matlab_required_variables Matlab_MX_LIBRARY)
1737 if(Matlab_MX_LIBRARY)
1738 set(Matlab_MX_LIBRARY_FOUND TRUE)
1742 if(Matlab_HAS_CPP_API)
1744 # The MatlabEngine library is required for R2018a+
1745 _Matlab_find_library(
1746 ${_matlab_lib_prefix_for_search}
1747 Matlab_ENGINE_LIBRARY
1749 PATHS ${_matlab_lib_dir_for_search}
1750 DOC "MatlabEngine Library"
1753 if(Matlab_ENGINE_LIBRARY)
1754 set(Matlab_ENGINE_LIBRARY_FOUND TRUE)
1757 # The MatlabDataArray library is required for R2018a+
1758 _Matlab_find_library(
1759 ${_matlab_lib_prefix_for_search}
1760 Matlab_DATAARRAY_LIBRARY
1762 PATHS ${_matlab_lib_dir_for_search}
1763 DOC "MatlabDataArray Library"
1766 if(Matlab_DATAARRAY_LIBRARY)
1767 set(Matlab_DATAARRAY_LIBRARY_FOUND TRUE)
1772 # Component ENG library
1773 if("ENG_LIBRARY" IN_LIST Matlab_FIND_COMPONENTS)
1774 _Matlab_find_library(
1775 ${_matlab_lib_prefix_for_search}
1778 PATHS ${_matlab_lib_dir_for_search}
1781 if(Matlab_ENG_LIBRARY)
1782 set(Matlab_ENG_LIBRARY_FOUND TRUE)
1786 # Component MAT library
1787 if("MAT_LIBRARY" IN_LIST Matlab_FIND_COMPONENTS)
1788 _Matlab_find_library(
1789 ${_matlab_lib_prefix_for_search}
1792 PATHS ${_matlab_lib_dir_for_search}
1795 if(Matlab_MAT_LIBRARY)
1796 set(Matlab_MAT_LIBRARY_FOUND TRUE)
1800 # Component Simulink
1801 if("SIMULINK" IN_LIST Matlab_FIND_COMPONENTS)
1803 Matlab_SIMULINK_INCLUDE_DIR
1805 PATHS "${Matlab_ROOT_DIR}/simulink/include"
1808 if(Matlab_SIMULINK_INCLUDE_DIR)
1809 set(Matlab_SIMULINK_FOUND TRUE)
1810 list(APPEND Matlab_INCLUDE_DIRS "${Matlab_SIMULINK_INCLUDE_DIR}")
1814 # component Matlab program
1815 if("MAIN_PROGRAM" IN_LIST Matlab_FIND_COMPONENTS)
1819 PATHS ${Matlab_ROOT_DIR} ${Matlab_ROOT_DIR}/bin
1820 DOC "Matlab main program"
1823 if(Matlab_MAIN_PROGRAM)
1824 set(Matlab_MAIN_PROGRAM_FOUND TRUE)
1828 # component Mex Compiler
1829 if("MEX_COMPILER" IN_LIST Matlab_FIND_COMPONENTS)
1833 PATHS ${Matlab_BINARIES_DIR}
1834 DOC "Matlab MEX compiler"
1837 if(Matlab_MEX_COMPILER)
1838 set(Matlab_MEX_COMPILER_FOUND TRUE)
1842 # component MCC Compiler
1843 if("MCC_COMPILER" IN_LIST Matlab_FIND_COMPONENTS)
1847 PATHS ${Matlab_BINARIES_DIR}
1848 DOC "Matlab MCC compiler"
1851 if(Matlab_MCC_COMPILER)
1852 set(Matlab_MCC_COMPILER_FOUND TRUE)
1856 set(Matlab_LIBRARIES
1857 ${Matlab_MEX_LIBRARY} ${Matlab_MX_LIBRARY}
1858 ${Matlab_ENG_LIBRARY} ${Matlab_MAT_LIBRARY})
1860 if(Matlab_ENGINE_LIBRARY)
1861 list(APPEND Matlab_LIBRARIES ${Matlab_ENGINE_LIBRARY})
1864 if(Matlab_DATAARRAY_LIBRARY)
1865 list(APPEND Matlab_LIBRARIES ${Matlab_DATAARRAY_LIBRARY})
1868 find_package_handle_standard_args(
1870 FOUND_VAR Matlab_FOUND
1871 REQUIRED_VARS ${_matlab_required_variables}
1872 VERSION_VAR Matlab_VERSION_STRING
1875 unset(_matlab_required_variables)
1876 unset(_matlab_bin_prefix)
1877 unset(_matlab_bin_suffix_32bits)
1878 unset(_matlab_bin_suffix_64bits)
1879 unset(_matlab_current_suffix)
1880 unset(_matlab_lib_dir_for_search)
1881 unset(_matlab_lib_prefix_for_search)
1883 if(Matlab_INCLUDE_DIRS AND Matlab_LIBRARIES)
1888 Matlab_ENGINE_LIBRARY
1889 Matlab_DATAARRAY_LIBRARY
1894 Matlab_MEXEXTENSIONS_PROG
1895 Matlab_MEX_EXTENSION