198 lines
7.8 KiB
CMake
198 lines
7.8 KiB
CMake
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# ----- Find Matlab/Octave -----
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#
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# OpenCVFindMatlab.cmake attempts to locate the install path of Matlab in order
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# to extract the mex headers, libraries and shell scripts. If found
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# successfully, the following variables will be defined
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#
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# MATLAB_FOUND: true/false
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# MATLAB_ROOT_DIR: Root of Matlab installation
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# MATLAB_BIN: The main Matlab "executable" (shell script)
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# MATLAB_MEX_SCRIPT: The mex script used to compile mex files
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# MATLAB_INCLUDE_DIRS:Path to "mex.h"
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# MATLAB_LIBRARY_DIRS:Path to mex and matrix libraries
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# MATLAB_LIBRARIES: The Matlab libs, usually mx, mex, mat
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# MATLAB_MEXEXT: The mex library extension. It will be one of:
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# mexwin32, mexwin64, mexglx, mexa64, mexmac,
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# mexmaci, mexmaci64, mexsol, mexs64
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# MATLAB_ARCH: The installation architecture. It is **usually**
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# the MEXEXT with the preceding "mex" removed,
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# though it's different for linux distros.
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#
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# There doesn't appear to be an elegant way to detect all versions of Matlab
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# across different platforms. If you know the matlab path and want to avoid
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# the search, you can define the path to the Matlab root when invoking cmake:
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#
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# cmake -DMATLAB_ROOT_DIR='/PATH/TO/ROOT_DIR' ..
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# ----- set_library_presuffix -----
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#
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# Matlab tends to use some non-standard prefixes and suffixes on its libraries.
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# For example, libmx.dll on Windows (Windows does not add prefixes) and
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# mkl.dylib on OS X (OS X uses "lib" prefixes).
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# On some versions of Windows the .dll suffix also appears to not be checked.
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#
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# This function modifies the library prefixes and suffixes used by
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# find_library when finding Matlab libraries. It does not affect scopes
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# outside of this file.
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function(set_libarch_prefix_suffix)
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if (UNIX AND NOT APPLE)
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set(CMAKE_FIND_LIBRARY_PREFIXES "lib" PARENT_SCOPE)
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set(CMAKE_FIND_LIBRARY_SUFFIXES ".so" ".a" PARENT_SCOPE)
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elseif (APPLE)
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set(CMAKE_FIND_LIBRARY_PREFIXES "lib" PARENT_SCOPE)
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set(CMAKE_FIND_LIBRARY_SUFFIXES ".dylib" ".a" PARENT_SCOPE)
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elseif (WIN32)
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set(CMAKE_FIND_LIBRARY_PREFIXES "lib" PARENT_SCOPE)
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set(CMAKE_FIND_LIBRARY_SUFFIXES ".lib" ".dll" PARENT_SCOPE)
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endif()
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endfunction()
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# ----- locate_matlab_root -----
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#
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# Attempt to find the path to the Matlab installation. If successful, sets
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# the absolute path in the variable MATLAB_ROOT_DIR
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function(locate_matlab_root)
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# --- UNIX/APPLE ---
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if (UNIX)
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# possible root locations, in order of likelihood
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set(SEARCH_DIRS_ /Applications /usr/local /opt/local /usr /opt)
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foreach (DIR_ ${SEARCH_DIRS_})
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file(GLOB MATLAB_ROOT_DIR_ ${DIR_}/MATLAB/R* ${DIR_}/MATLAB_R*)
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if (MATLAB_ROOT_DIR_)
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# sort in order from highest to lowest
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# normally it's in the format MATLAB_R[20XX][A/B]
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# TODO: numerical rather than lexicographic sort. However,
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# CMake does not support floating-point MATH(EXPR ...) at this time.
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list(SORT MATLAB_ROOT_DIR_)
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list(REVERSE MATLAB_ROOT_DIR_)
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list(GET MATLAB_ROOT_DIR_ 0 MATLAB_ROOT_DIR_)
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set(MATLAB_ROOT_DIR ${MATLAB_ROOT_DIR_} PARENT_SCOPE)
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return()
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endif()
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endforeach()
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# --- WINDOWS ---
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elseif (WIN32)
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# 1. search the path environment variable
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find_program(MATLAB_ROOT_DIR_ matlab PATHS ENV PATH)
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if (MATLAB_ROOT_DIR_)
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# get the root directory from the full path
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# /path/to/matlab/rootdir/bin/matlab.exe
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get_filename_component(MATLAB_ROOT_DIR_ ${MATLAB_ROOT_DIR_} PATH)
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get_filename_component(MATLAB_ROOT_DIR_ ${MATLAB_ROOT_DIR_} PATH)
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set(MATLAB_ROOT_DIR ${MATLAB_ROOT_DIR_} PARENT_SCOPE)
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return()
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endif()
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# 2. search the registry
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# determine the available Matlab versions
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set(REG_EXTENSION_ "SOFTWARE\\Mathworks\\MATLAB")
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set(REG_ROOTS_ "HKEY_LOCAL_MACHINE" "HKEY_CURRENT_USER")
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foreach(REG_ROOT_ ${REG_ROOTS_})
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execute_process(COMMAND reg query "${REG_ROOT_}\\${REG_EXTENSION_}" OUTPUT_VARIABLE QUERY_RESPONSE_ ERROR_VARIABLE UNUSED_)
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if (QUERY_RESPONSE_)
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string(REGEX MATCHALL "[0-9]\\.[0-9]" VERSION_STRINGS_ ${QUERY_RESPONSE_})
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list(APPEND VERSIONS_ ${VERSION_STRINGS_})
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endif()
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endforeach()
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# select the highest version
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list(APPEND VERSIONS_ "0.0")
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list(SORT VERSIONS_)
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list(REVERSE VERSIONS_)
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list(GET VERSIONS_ 0 VERSION_)
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# request the MATLABROOT from the registry
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foreach(REG_ROOT_ ${REG_ROOTS_})
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get_filename_component(QUERY_RESPONSE_ [${REG_ROOT_}\\${REG_EXTENSION_}\\${VERSION_};MATLABROOT] ABSOLUTE)
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if (NOT ${QUERY_RESPONSE_} MATCHES "registry$")
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set(MATLAB_ROOT_DIR ${QUERY_RESPONSE_} PARENT_SCOPE)
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return()
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endif()
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endforeach()
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endif()
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endfunction()
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# ----- locate_matlab_components -----
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#
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# Given a directory MATLAB_ROOT_DIR, attempt to find the Matlab components
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# (include directory and libraries) under the root. If everything is found,
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# sets the variable MATLAB_FOUND to TRUE
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function(locate_matlab_components MATLAB_ROOT_DIR)
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# get the mex extension
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find_file(MATLAB_MEXEXT_SCRIPT_ NAMES mexext mexext.bat PATHS ${MATLAB_ROOT_DIR}/bin NO_DEFAULT_PATH)
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execute_process(COMMAND ${MATLAB_MEXEXT_SCRIPT_}
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OUTPUT_VARIABLE MATLAB_MEXEXT_
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OUTPUT_STRIP_TRAILING_WHITESPACE)
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if (NOT MATLAB_MEXEXT_)
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return()
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endif()
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# map the mexext to an architecture extension
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set(ARCHITECTURES_ "maci64" "maci" "glnxa64" "glnx64" "sol64" "sola64" "win32" "win64" )
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foreach(ARCHITECTURE_ ${ARCHITECTURES_})
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if(EXISTS ${MATLAB_ROOT_DIR}/bin/${ARCHITECTURE_})
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set(MATLAB_ARCH_ ${ARCHITECTURE_})
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break()
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endif()
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endforeach()
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# get the path to the libraries
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set(MATLAB_LIBRARY_DIRS_ ${MATLAB_ROOT_DIR}/bin/${MATLAB_ARCH_})
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# get the libraries
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set_libarch_prefix_suffix()
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find_library(MATLAB_LIB_MX_ mx PATHS ${MATLAB_LIBRARY_DIRS_} NO_DEFAULT_PATH)
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find_library(MATLAB_LIB_MEX_ mex PATHS ${MATLAB_LIBRARY_DIRS_} NO_DEFAULT_PATH)
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find_library(MATLAB_LIB_MAT_ mat PATHS ${MATLAB_LIBRARY_DIRS_} NO_DEFAULT_PATH)
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set(MATLAB_LIBRARIES_ ${MATLAB_LIB_MX_} ${MATLAB_LIB_MEX_} ${MATLAB_LIB_MAT_})
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# get the include path
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find_path(MATLAB_INCLUDE_DIRS_ mex.h ${MATLAB_ROOT_DIR}/extern/include)
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# get the mex shell script
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find_program(MATLAB_MEX_SCRIPT_ NAMES mex mex.bat PATHS ${MATLAB_ROOT_DIR}/bin NO_DEFAULT_PATH)
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# get the Matlab executable
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find_program(MATLAB_BIN_ NAMES matlab PATHS ${MATLAB_ROOT_DIR}/bin NO_DEFAULT_PATH)
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# export into parent scope
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if (MATLAB_MEX_SCRIPT_ AND MATLAB_LIBRARIES_ AND MATLAB_INCLUDE_DIRS_)
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set(MATLAB_BIN ${MATLAB_BIN_} PARENT_SCOPE)
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set(MATLAB_MEX_SCRIPT ${MATLAB_MEX_SCRIPT_} PARENT_SCOPE)
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set(MATLAB_INCLUDE_DIRS ${MATLAB_INCLUDE_DIRS_} PARENT_SCOPE)
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set(MATLAB_LIBRARIES ${MATLAB_LIBRARIES_} PARENT_SCOPE)
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set(MATLAB_LIBRARY_DIRS ${MATLAB_LIBRARY_DIRS_} PARENT_SCOPE)
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set(MATLAB_MEXEXT ${MATLAB_MEXEXT_} PARENT_SCOPE)
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set(MATLAB_ARCH ${MATLAB_ARCH_} PARENT_SCOPE)
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endif()
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endfunction()
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# ----------------------------------------------------------------------------
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# FIND MATLAB COMPONENTS
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# ----------------------------------------------------------------------------
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if (NOT MATLAB_FOUND)
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# attempt to find the Matlab root folder
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if (NOT MATLAB_ROOT_DIR)
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locate_matlab_root()
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endif()
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# given the matlab root folder, find the library locations
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if (MATLAB_ROOT_DIR)
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locate_matlab_components(${MATLAB_ROOT_DIR})
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endif()
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find_package_handle_standard_args(Matlab DEFAULT_MSG
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MATLAB_MEX_SCRIPT MATLAB_INCLUDE_DIRS
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MATLAB_ROOT_DIR MATLAB_LIBRARIES
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MATLAB_LIBRARY_DIRS MATLAB_MEXEXT
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MATLAB_ARCH MATLAB_BIN)
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endif()
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