FindMatlab: Matlab Runtime Compiler support

* Determining automatically the MCR version on OSX and Windows
* Distinguishing between MCR and Matlab
* Specific tests for the MCR
* mexext on windows does not work properly: the mexext is hardcoded
* Doc updates for the MCR

Fixes: #16487

4 files changed, 103 insertions, 55 deletions

diff --git a/Tests/FindMatlab/basic_checks/CMakeLists.txt b/Tests/FindMatlab/basic_checks/CMakeLists.txt
index 951fcf2082..4a74d93f18 100644
--- a/Tests/FindMatlab/basic_checks/CMakeLists.txt
+++ b/Tests/FindMatlab/basic_checks/CMakeLists.txt
@@ -8,8 +8,23 @@ set(MATLAB_FIND_DEBUG TRUE)
 # the success of the following command is dependent on the current configuration:
 # - on 32bits builds (cmake is building with 32 bits), it looks for 32 bits Matlab
 # - on 64bits builds (cmake is building with 64 bits), it looks for 64 bits Matlab
-find_package(Matlab REQUIRED COMPONENTS MX_LIBRARY MAIN_PROGRAM)
 
+if(IS_MCR)
+    set(components MX_LIBRARY)
+    set(RUN_UNIT_TESTS FALSE)
+else()
+    set(RUN_UNIT_TESTS TRUE)
+    set(components MX_LIBRARY MAIN_PROGRAM)
+endif()
+
+if(NOT "${MCR_ROOT}" STREQUAL "")
+    set(Matlab_ROOT_DIR "${MCR_ROOT}")
+    if(NOT EXISTS "${MCR_ROOT}")
+        message(FATAL_ERROR "MCR does not exist ${MCR_ROOT}")
+    endif()
+endif()
+
+find_package(Matlab REQUIRED COMPONENTS ${components})
 
 
 matlab_add_mex(
@@ -21,38 +36,39 @@ matlab_add_mex(
     DOCUMENTATION ${CMAKE_CURRENT_SOURCE_DIR}/../help_text1.m.txt
   )
 
+if(RUN_UNIT_TESTS)
+    matlab_add_unit_test(
+        NAME ${PROJECT_NAME}_matlabtest-1
+        TIMEOUT 300
+        UNITTEST_FILE ${CMAKE_CURRENT_SOURCE_DIR}/../cmake_matlab_unit_tests1.m
+        ADDITIONAL_PATH $<TARGET_FILE_DIR:cmake_matlab_test_wrapper1>
+        )
+
+    # timeout tests, TIMEOUT set to very short on purpose
+    matlab_add_unit_test(
+        NAME ${PROJECT_NAME}_matlabtest-2
+        TIMEOUT 15
+        UNITTEST_FILE ${CMAKE_CURRENT_SOURCE_DIR}/../cmake_matlab_unit_tests_timeout.m
+        ADDITIONAL_PATH $<TARGET_FILE_DIR:cmake_matlab_test_wrapper1>
+        )
+    set_tests_properties(${PROJECT_NAME}_matlabtest-2 PROPERTIES WILL_FAIL TRUE)
+
+
+    # testing the test without the unittest framework of Matlab
+    matlab_add_unit_test(
+        NAME ${PROJECT_NAME}_matlabtest-3
+        TIMEOUT 300
+        NO_UNITTEST_FRAMEWORK
+        UNITTEST_FILE ${CMAKE_CURRENT_SOURCE_DIR}/../cmake_matlab_unit_tests2.m
+        ADDITIONAL_PATH $<TARGET_FILE_DIR:cmake_matlab_test_wrapper1>
+        )
 
-matlab_add_unit_test(
-    NAME ${PROJECT_NAME}_matlabtest-1
-    TIMEOUT 300
-    UNITTEST_FILE ${CMAKE_CURRENT_SOURCE_DIR}/../cmake_matlab_unit_tests1.m
-    ADDITIONAL_PATH $<TARGET_FILE_DIR:cmake_matlab_test_wrapper1>
-    )
-
-# timeout tests, TIMEOUT set to very short on purpose
-matlab_add_unit_test(
-    NAME ${PROJECT_NAME}_matlabtest-2
-    TIMEOUT 15
-    UNITTEST_FILE ${CMAKE_CURRENT_SOURCE_DIR}/../cmake_matlab_unit_tests_timeout.m
-    ADDITIONAL_PATH $<TARGET_FILE_DIR:cmake_matlab_test_wrapper1>
-    )
-set_tests_properties(${PROJECT_NAME}_matlabtest-2 PROPERTIES WILL_FAIL TRUE)
-
-
-# testing the test without the unittest framework of Matlab
-matlab_add_unit_test(
-    NAME ${PROJECT_NAME}_matlabtest-3
-    TIMEOUT 300
-    NO_UNITTEST_FRAMEWORK
-    UNITTEST_FILE ${CMAKE_CURRENT_SOURCE_DIR}/../cmake_matlab_unit_tests2.m
-    ADDITIONAL_PATH $<TARGET_FILE_DIR:cmake_matlab_test_wrapper1>
-    )
-
-matlab_add_unit_test(
-    NAME ${PROJECT_NAME}_matlabtest-4
-    TIMEOUT 300
-    NO_UNITTEST_FRAMEWORK
-    UNITTEST_FILE ${CMAKE_CURRENT_SOURCE_DIR}/../cmake_matlab_unit_tests3.m
-    ADDITIONAL_PATH $<TARGET_FILE_DIR:cmake_matlab_test_wrapper1>
-    )
-set_tests_properties(${PROJECT_NAME}_matlabtest-4 PROPERTIES WILL_FAIL TRUE)
+    matlab_add_unit_test(
+        NAME ${PROJECT_NAME}_matlabtest-4
+        TIMEOUT 300
+        NO_UNITTEST_FRAMEWORK
+        UNITTEST_FILE ${CMAKE_CURRENT_SOURCE_DIR}/../cmake_matlab_unit_tests3.m
+        ADDITIONAL_PATH $<TARGET_FILE_DIR:cmake_matlab_test_wrapper1>
+        )
+    set_tests_properties(${PROJECT_NAME}_matlabtest-4 PROPERTIES WILL_FAIL TRUE)
+endif()
diff --git a/Tests/FindMatlab/components_checks/CMakeLists.txt b/Tests/FindMatlab/components_checks/CMakeLists.txt
index 3dec0931cf..da6a2b00e2 100644
--- a/Tests/FindMatlab/components_checks/CMakeLists.txt
+++ b/Tests/FindMatlab/components_checks/CMakeLists.txt
@@ -5,10 +5,18 @@ project(component_checks)
 
 set(MATLAB_FIND_DEBUG TRUE)
 
+if(NOT "${MCR_ROOT}" STREQUAL "")
+    set(Matlab_ROOT_DIR "${MCR_ROOT}")
+    if(NOT EXISTS "${MCR_ROOT}")
+        message(FATAL_ERROR "MCR does not exist ${MCR_ROOT}")
+    endif()
+endif()
+
 # the success of the following command is dependent on the current configuration:
 # - on 32bits builds (cmake is building with 32 bits), it looks for 32 bits Matlab
 # - on 64bits builds (cmake is building with 64 bits), it looks for 64 bits Matlab
-find_package(Matlab REQUIRED COMPONENTS MX_LIBRARY ENG_LIBRARY MAT_LIBRARY MAIN_PROGRAM)
+find_package(Matlab REQUIRED COMPONENTS MX_LIBRARY ENG_LIBRARY MAT_LIBRARY
+                    OPTIONAL_COMPONENTS MAIN_PROGRAM)
 
 message(STATUS "FindMatlab libraries: ${Matlab_LIBRARIES}")
 
diff --git a/Tests/FindMatlab/failure_reports/CMakeLists.txt b/Tests/FindMatlab/failure_reports/CMakeLists.txt
index 1cf961323c..e597a4a054 100644
--- a/Tests/FindMatlab/failure_reports/CMakeLists.txt
+++ b/Tests/FindMatlab/failure_reports/CMakeLists.txt
@@ -7,7 +7,22 @@ project(failure_reports)
 
 set(MATLAB_FIND_DEBUG TRUE)
 
-find_package(Matlab REQUIRED COMPONENTS MX_LIBRARY MAIN_PROGRAM)
+if(IS_MCR)
+    set(components MX_LIBRARY)
+    set(RUN_UNIT_TESTS FALSE)
+else()
+    set(RUN_UNIT_TESTS TRUE)
+    set(components MX_LIBRARY MAIN_PROGRAM)
+endif()
+
+if(NOT "${MCR_ROOT}" STREQUAL "")
+    set(Matlab_ROOT_DIR "${MCR_ROOT}")
+    if(NOT EXISTS "${MCR_ROOT}")
+        message(FATAL_ERROR "MCR does not exist ${MCR_ROOT}")
+    endif()
+endif()
+
+find_package(Matlab REQUIRED COMPONENTS ${components})
 
 # main extensions for testing, same as other tests
 matlab_add_mex(
@@ -19,21 +34,23 @@ matlab_add_mex(
     DOCUMENTATION ${CMAKE_CURRENT_SOURCE_DIR}/../help_text1.m.txt
   )
 
-# the unit test file does not exist: the failure should be properly reported
-matlab_add_unit_test(
-    NAME ${PROJECT_NAME}_matlabtest-1
-    TIMEOUT 300
-    UNITTEST_FILE ${CMAKE_CURRENT_SOURCE_DIR}/../nonexistantfile.m
-    ADDITIONAL_PATH $<TARGET_FILE_DIR:cmake_matlab_test_wrapper1>
-    )
-set_tests_properties(${PROJECT_NAME}_matlabtest-1 PROPERTIES WILL_FAIL TRUE)
-
-# without the unit test framework
-matlab_add_unit_test(
-    NAME ${PROJECT_NAME}_matlabtest-2
-    TIMEOUT 300
-    NO_UNITTEST_FRAMEWORK
-    UNITTEST_FILE ${CMAKE_CURRENT_SOURCE_DIR}/../nonexistantfile2.m
-    ADDITIONAL_PATH $<TARGET_FILE_DIR:cmake_matlab_test_wrapper1>
-    )
-set_tests_properties(${PROJECT_NAME}_matlabtest-2 PROPERTIES WILL_FAIL TRUE)
+if(RUN_UNIT_TESTS)
+    # the unit test file does not exist: the failure should be properly reported
+    matlab_add_unit_test(
+        NAME ${PROJECT_NAME}_matlabtest-1
+        TIMEOUT 300
+        UNITTEST_FILE ${CMAKE_CURRENT_SOURCE_DIR}/../nonexistantfile.m
+        ADDITIONAL_PATH $<TARGET_FILE_DIR:cmake_matlab_test_wrapper1>
+        )
+    set_tests_properties(${PROJECT_NAME}_matlabtest-1 PROPERTIES WILL_FAIL TRUE)
+
+    # without the unit test framework
+    matlab_add_unit_test(
+        NAME ${PROJECT_NAME}_matlabtest-2
+        TIMEOUT 300
+        NO_UNITTEST_FRAMEWORK
+        UNITTEST_FILE ${CMAKE_CURRENT_SOURCE_DIR}/../nonexistantfile2.m
+        ADDITIONAL_PATH $<TARGET_FILE_DIR:cmake_matlab_test_wrapper1>
+        )
+    set_tests_properties(${PROJECT_NAME}_matlabtest-2 PROPERTIES WILL_FAIL TRUE)
+endif()
diff --git a/Tests/FindMatlab/versions_checks/CMakeLists.txt b/Tests/FindMatlab/versions_checks/CMakeLists.txt
index 5d20685c25..d015730b0b 100644
--- a/Tests/FindMatlab/versions_checks/CMakeLists.txt
+++ b/Tests/FindMatlab/versions_checks/CMakeLists.txt
@@ -7,6 +7,13 @@ set(MATLAB_FIND_DEBUG TRUE)
 set(MATLAB_ADDITIONAL_VERSIONS
     "dummy=14.9")
 
+if(NOT "${MCR_ROOT}" STREQUAL "")
+    set(Matlab_ROOT_DIR "${MCR_ROOT}")
+    if(NOT EXISTS "${MCR_ROOT}")
+        message(FATAL_ERROR "MCR does not exist ${MCR_ROOT}")
+    endif()
+endif()
+
 # the success of the following command is dependent on the current configuration
 # in this case, we are only interested in the version macros
 find_package(Matlab)