if(NOT APPLE)

message(FATAL_ERROR "The Objective-C API must be built on an Apple platform.")

endif()

set(ONNXRUNTIME_OBJC_MIN_CMAKE_VERSION "3.18")

if(CMAKE_VERSION VERSION_LESS ONNXRUNTIME_OBJC_MIN_CMAKE_VERSION)

message(FATAL_ERROR "The Objective-C API requires CMake ${ONNXRUNTIME_OBJC_MIN_CMAKE_VERSION}+.")

endif()

if(NOT onnxruntime_BUILD_SHARED_LIB)

message(FATAL_ERROR "The Objective-C API requires onnxruntime_BUILD_SHARED_LIB to be enabled.")

endif()

check_language(OBJC)

if(CMAKE_OBJC_COMPILER)

enable_language(OBJC)

else()

message(FATAL_ERROR "Objective-C is not supported.")

endif()

check_language(OBJCXX)

if(CMAKE_OBJCXX_COMPILER)

enable_language(OBJCXX)

else()

message(FATAL_ERROR "Objective-C++ is not supported.")

endif()

add_compile_options(

"$<$<COMPILE_LANGUAGE:OBJC,OBJCXX>:-Wall>"

"$<$<COMPILE_LANGUAGE:OBJC,OBJCXX>:-Wextra>")

if(onnxruntime_DEV_MODE)

add_compile_options(

"$<$<COMPILE_LANGUAGE:OBJC,OBJCXX>:-Werror>")

endif()

set(OBJC_ROOT "${REPO_ROOT}/objectivec")

file(GLOB onnxruntime_objc_headers CONFIGURE_DEPENDS

"${OBJC_ROOT}/include/*.h")

file(GLOB onnxruntime_objc_srcs CONFIGURE_DEPENDS

"${OBJC_ROOT}/src/*.h"

"${OBJC_ROOT}/src/*.m"

"${OBJC_ROOT}/src/*.mm")

source_group(TREE "${OBJC_ROOT}" FILES

${onnxruntime_objc_headers}

${onnxruntime_objc_srcs})

onnxruntime_add_shared_library(onnxruntime_objc

${onnxruntime_objc_headers}

${onnxruntime_objc_srcs})

target_include_directories(onnxruntime_objc

PUBLIC

"${OBJC_ROOT}/include"

PRIVATE

"${ONNXRUNTIME_INCLUDE_DIR}/core/session"

"${OBJC_ROOT}")

if(onnxruntime_USE_COREML)

target_include_directories(onnxruntime_objc

PRIVATE

"${ONNXRUNTIME_INCLUDE_DIR}/core/providers/coreml")

endif()

find_library(FOUNDATION_LIB Foundation REQUIRED)

target_link_libraries(onnxruntime_objc

PRIVATE

onnxruntime

safeint_interface

${FOUNDATION_LIB})

set_target_properties(onnxruntime_objc PROPERTIES

FRAMEWORK TRUE

VERSION "1.0.0"

SOVERSION "1.0.0"

FRAMEWORK_VERSION "A"

PUBLIC_HEADER "${onnxruntime_objc_headers}"

FOLDER "ONNXRuntime"

CXX_STANDARD 17 # TODO remove when everything else moves to 17

)

set_property(TARGET onnxruntime_objc APPEND PROPERTY COMPILE_OPTIONS "-fvisibility=default")

target_link_options(onnxruntime_objc PRIVATE "-Wl,-headerpad_max_install_names")

add_custom_command(TARGET onnxruntime_objc POST_BUILD

COMMAND ${CMAKE_COMMAND} -E make_directory

"$<TARGET_BUNDLE_CONTENT_DIR:onnxruntime_objc>/Libraries"

COMMAND ${CMAKE_COMMAND} -E copy

"$<TARGET_FILE:onnxruntime>"

"$<TARGET_BUNDLE_CONTENT_DIR:onnxruntime_objc>/Libraries"

COMMAND install_name_tool

-change "@rpath/$<TARGET_FILE_NAME:onnxruntime>"

"@rpath/$<TARGET_NAME:onnxruntime_objc>.framework/Libraries/$<TARGET_FILE_NAME:onnxruntime>"

"$<TARGET_FILE:onnxruntime_objc>")

install(TARGETS onnxruntime_objc

FRAMEWORK DESTINATION ${CMAKE_INSTALL_BINDIR})

if(onnxruntime_BUILD_UNIT_TESTS)

find_package(XCTest REQUIRED)

# onnxruntime_objc_test target

file(GLOB onnxruntime_objc_test_srcs CONFIGURE_DEPENDS

"${OBJC_ROOT}/test/*.h"

"${OBJC_ROOT}/test/*.m"

"${OBJC_ROOT}/test/*.mm")

source_group(TREE "${OBJC_ROOT}" FILES ${onnxruntime_objc_test_srcs})

xctest_add_bundle(onnxruntime_objc_test onnxruntime_objc

${onnxruntime_objc_headers}

${onnxruntime_objc_test_srcs})

onnxruntime_configure_target(onnxruntime_objc_test)

target_include_directories(onnxruntime_objc_test

PRIVATE

"${OBJC_ROOT}")

set_target_properties(onnxruntime_objc_test PROPERTIES

FOLDER "ONNXRuntimeTest"

XCODE_ATTRIBUTE_CODE_SIGNING_ALLOWED "NO")

add_custom_command(TARGET onnxruntime_objc_test POST_BUILD

COMMAND ${CMAKE_COMMAND} -E copy_directory

"${OBJC_ROOT}/test/testdata"

"$<TARGET_BUNDLE_CONTENT_DIR:onnxruntime_objc_test>/Resources")

xctest_add_test(XCTest.onnxruntime_objc_test onnxruntime_objc_test)

set_property(TEST XCTest.onnxruntime_objc_test APPEND PROPERTY

ENVIRONMENT "DYLD_LIBRARY_PATH=$<TARGET_FILE_DIR:onnxruntime>")

endif()