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# This file figures out where MATLAB is and then defines a macro, add_mex_function(name)
# which when called instructs CMake to build a mex file from a file called name.cpp. Note
# that additional library dependencies can be added like this: add_mex_function(name lib1 dlib libetc).
# That is, just add more libraries after the name and they will be build into the mex file.
cmake_minimum_required(VERSION 2.8.12)
set(BUILDING_MATLAB_MEX_FILE true)
set(CMAKE_POSITION_INDEPENDENT_CODE True)
# Trying to use cuda with matlab hasn't worked well, so just disable it.
SET(DLIB_USE_CUDA OFF CACHE BOOL "" FORCE)
# Find MATLAB's include directory and needed libraries
find_program(MATLAB_EXECUTABLE matlab PATHS
"C:/Program Files/MATLAB/*/bin"
"C:/Program Files (x86)/MATLAB/*/bin"
)
# Resolve symbolic links to try and get the real path to the MATLAB executable
get_filename_component(MATLAB_EXECUTABLE ${MATLAB_EXECUTABLE} REALPATH)
# Now get MATLAB root directory
get_filename_component(MATLAB_HOME ${MATLAB_EXECUTABLE} PATH)
get_filename_component(MATLAB_HOME ${MATLAB_HOME} PATH)
set(MATLAB_LIB_FOLDERS
"${MATLAB_HOME}/extern/lib/win64/microsoft"
"${MATLAB_HOME}/bin/glnxa64"
)
# If there is a MATLAB_HOME environment variable then look there as well.
if (DEFINED ENV{MATLAB_HOME})
set(MATLAB_LIB_FOLDERS
"$ENV{MATLAB_HOME}/extern/lib/win64/microsoft"
"$ENV{MATLAB_HOME}/bin/glnxa64"
${MATLAB_LIB_FOLDERS}
)
endif()
# Find the MATLAB libraries that need to get linked into the mex file
if (WIN32)
find_library(MATLAB_MEX_LIBRARY libmex PATHS ${MATLAB_LIB_FOLDERS} )
find_library(MATLAB_MX_LIBRARY libmx PATHS ${MATLAB_LIB_FOLDERS} )
find_library(MATLAB_ENG_LIBRARY libeng PATHS ${MATLAB_LIB_FOLDERS} )
else()
find_library(MATLAB_MEX_LIBRARY mex PATHS ${MATLAB_LIB_FOLDERS} )
find_library(MATLAB_MX_LIBRARY mx PATHS ${MATLAB_LIB_FOLDERS} )
find_library(MATLAB_ENG_LIBRARY eng PATHS ${MATLAB_LIB_FOLDERS} )
endif()
set(MATLAB_LIBRARIES ${MATLAB_MEX_LIBRARY} ${MATLAB_MX_LIBRARY} ${MATLAB_ENG_LIBRARY})
# Figure out the path to MATLAB's mex.h so we can add it to the include search path.
find_path(mex_header_path mex.h
PATHS "$ENV{MATLAB_HOME}/extern/include"
"${MATLAB_HOME}/extern/include"
)
INCLUDE_DIRECTORIES(${mex_header_path})
# Determine the path to cmake_mex_wrapper file so we can add it to the include search path..
string(REGEX REPLACE "cmake_mex_wrapper$" "" dlib_matlab_binding_path ${CMAKE_CURRENT_LIST_FILE})
INCLUDE_DIRECTORIES("${dlib_matlab_binding_path}")
# Also add dlib to the include search path
INCLUDE_DIRECTORIES(${dlib_matlab_binding_path}/../..)
add_definitions(-DMATLAB_MEX_FILE)
# Determine the path to our CMakeLists.txt file. This is the file that
# includeded the one you are reading right now. So here we make it so that
# when you run the install target it will copy the compiled mex files into the
# same folder as the parent CMakeLists.txt file.
string(REGEX REPLACE "CMakeLists.txt$" "" install_dir ${CMAKE_PARENT_LIST_FILE})
set(CMAKE_INSTALL_PREFIX "${install_dir}")
set(CMAKE_INSTALL_SYSTEM_RUNTIME_DESTINATION "${install_dir}")
INCLUDE(InstallRequiredSystemLibraries)
MACRO(add_mex_function name )
ADD_LIBRARY(${name} MODULE ${name}.cpp )
target_compile_definitions(${name} PRIVATE -DMEX_FILENAME=${name})
if (UNIX)
# Doing this prevents our mex function from exporting any symbols
# other than mexFunction(). This sometimes doesn't matter but sometimes
# avoids causing errors or otherwise bad behavior in MATLAB.
if (DEFINED ENV{MATLAB_HOME})
set_target_properties(${name} PROPERTIES LINK_FLAGS "-Wl,--version-script,$ENV{MATLAB_HOME}/extern/lib/glnxa64/mexFunction.map")
else()
set_target_properties(${name} PROPERTIES LINK_FLAGS "-Wl,--version-script,${MATLAB_HOME}/extern/lib/glnxa64/mexFunction.map")
endif()
endif()
# Change the output file extension to a mex extension.
if (WIN32)
set_target_properties(${name} PROPERTIES SUFFIX ".mexw64")
elseif(APPLE)
set_target_properties(${name} PROPERTIES SUFFIX ".mexmaci64")
else()
set_target_properties(${name} PROPERTIES SUFFIX ".mexa64")
endif()
set_target_properties(${name} PROPERTIES PREFIX "")
TARGET_LINK_LIBRARIES(${name} ${MATLAB_LIBRARIES} ${ARGN})
if (install_target_output_folder)
install(TARGETS ${name} DESTINATION "${install_target_output_folder}")
else()
install(TARGETS ${name} DESTINATION "${install_dir}")
endif()
ENDMACRO()