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# This file is based off of the Platform/Darwin.cmake and Platform/UnixPaths.cmake
# files which are included with CMake 2.8.4
# It has been altered for iOS development

# Options:
#
# IOS_PLATFORM = OS (default) or SIMULATOR
#   This decides if SDKS will be selected from the iPhoneOS.platform or iPhoneSimulator.platform folders
#   OS - the default, used to build for iPhone and iPad physical devices, which have an arm arch.
#   SIMULATOR - used to build for the Simulator platforms, which have an x86 arch.
#
# IOS_ARCH = automatic(default) or "arch1;arch2" (e.q. "x86_64;arm64")
#   By default this value will be automatically chosen based on the IOS_PLATFORM value above.
#   If set manually, it will override the default and force to build those architectures only.
#
# CMAKE_IOS_DEVELOPER_ROOT = automatic(default) or /path/to/platform/Developer folder
#   By default this location is automatically chosen based on the IOS_PLATFORM value above.
#   If set manually, it will override the default location and force the user of a particular Developer Platform
#
# CMAKE_IOS_SDK_ROOT = automatic(default) or /path/to/platform/Developer/SDKs/SDK folder
#   By default this location is automatically chosen based on the CMAKE_IOS_DEVELOPER_ROOT value.
#   In this case it will always be the most up-to-date SDK found in the CMAKE_IOS_DEVELOPER_ROOT path.
#   If set manually, this will force the use of a specific SDK version

# Macros:
#
# set_xcode_property (TARGET XCODE_PROPERTY XCODE_VALUE)
#  A convenience macro for setting xcode specific properties on targets
#  example: set_xcode_property (myioslib IPHONEOS_DEPLOYMENT_TARGET "3.1")
#
# find_host_package (PROGRAM ARGS)
#  A macro used to find executable programs on the host system, not within the iOS environment.
#  Thanks to the android-cmake project for providing the command

# Standard settings
set (CMAKE_SYSTEM_NAME Darwin)
set (CMAKE_SYSTEM_VERSION 1)
set (UNIX True)
set (APPLE True)
set (IOS True)

# Required as of cmake 2.8.10
set (CMAKE_OSX_DEPLOYMENT_TARGET "" CACHE STRING "Force unset of the deployment target for iOS" FORCE)

# Determine the cmake host system version so we know where to find the iOS SDKs
find_program (CMAKE_UNAME uname /bin /usr/bin /usr/local/bin)
if (CMAKE_UNAME)
    execute_process(COMMAND uname -r OUTPUT_VARIABLE CMAKE_HOST_SYSTEM_VERSION OUTPUT_STRIP_TRAILING_WHITESPACE)
    string (REGEX REPLACE "^([0-9]+)\\.([0-9]+).*$" "\\1" DARWIN_MAJOR_VERSION "${CMAKE_HOST_SYSTEM_VERSION}")
endif (CMAKE_UNAME)

# Force the compilers to gcc for iOS
set (CMAKE_C_COMPILER /usr/bin/gcc)
set (CMAKE_CXX_COMPILER /usr/bin/g++)
set (CMAKE_AR ar CACHE FILEPATH "" FORCE)
set (CMAKE_RANLIB ranlib CACHE FILEPATH "" FORCE)
set (PKG_CONFIG_EXECUTABLE pkg-config CACHE FILEPATH "" FORCE)

# Setup iOS platform unless specified manually with IOS_PLATFORM
if (NOT DEFINED IOS_PLATFORM)
    set (IOS_PLATFORM "OS")
endif (NOT DEFINED IOS_PLATFORM)
set (IOS_PLATFORM ${IOS_PLATFORM} CACHE STRING "Type of iOS Platform")

# Check the platform selection and setup for developer root
if (IOS_PLATFORM STREQUAL "OS")
    set (IOS_PLATFORM_LOCATION "iPhoneOS.platform")
    set (XCODE_IOS_PLATFORM ios)

    # This causes the installers to properly locate the output libraries
    set (CMAKE_XCODE_EFFECTIVE_PLATFORMS "-iphoneos")

    set (APPLE_IOS True)
elseif (IOS_PLATFORM STREQUAL "SIMULATOR")
    set (SIMULATOR_FLAG true)
    set (IOS_PLATFORM_LOCATION "iPhoneSimulator.platform")
    set (XCODE_IOS_PLATFORM ios-simulator)

    # This causes the installers to properly locate the output libraries
    set (CMAKE_XCODE_EFFECTIVE_PLATFORMS "-iphonesimulator")

    set (APPLE_IOS True)
elseif (IOS_PLATFORM STREQUAL "WATCHOS")
    set (IOS_PLATFORM_LOCATION "WatchOS.platform")
    set (XCODE_IOS_PLATFORM watchos)

    # This causes the installers to properly locate the output libraries
    set (CMAKE_XCODE_EFFECTIVE_PLATFORMS "-watchos")

    set (APPLE_WATCH True)
elseif (IOS_PLATFORM STREQUAL "WATCHSIMULATOR")
    set (SIMULATOR_FLAG true)
    set (IOS_PLATFORM_LOCATION "WatchSimulator.platform")
    set (XCODE_IOS_PLATFORM watchos-simulator)

    # This causes the installers to properly locate the output libraries
    set (CMAKE_XCODE_EFFECTIVE_PLATFORMS "-watchsimulator")

    set (APPLE_WATCH True)
elseif (IOS_PLATFORM STREQUAL "TVOS")
    set (IOS_PLATFORM_LOCATION "AppleTvOS.platform")
    set (XCODE_IOS_PLATFORM tvos)

    # This causes the installers to properly locate the output libraries
    set (CMAKE_XCODE_EFFECTIVE_PLATFORMS "-appletvos")

    set (APPLE_TV True)
elseif (IOS_PLATFORM STREQUAL "TVSIMULATOR")
    set (SIMULATOR_FLAG true)
    set (IOS_PLATFORM_LOCATION "AppleTvSimulator.platform")
    set (XCODE_IOS_PLATFORM tvos-simulator)

    # This causes the installers to properly locate the output libraries
    set (CMAKE_XCODE_EFFECTIVE_PLATFORMS "-tvsimulator")

    set (APPLE_TV True)
elseif (IOS_PLATFORM STREQUAL "VISIONOS")
    set (IOS_PLATFORM_LOCATION "XROS.platform")
    set (XCODE_IOS_PLATFORM xros)

    # This causes the installers to properly locate the output libraries
    set (CMAKE_XCODE_EFFECTIVE_PLATFORMS "-xros")

    set (APPLE_VISION True)
elseif (IOS_PLATFORM STREQUAL "VISIONSIMULATOR")
    set (SIMULATOR_FLAG true)
    set (IOS_PLATFORM_LOCATION "XRSimulator.platform")
    set (XCODE_IOS_PLATFORM xros-simulator)

    # This causes the installers to properly locate the output libraries
    set (CMAKE_XCODE_EFFECTIVE_PLATFORMS "-xrsimulator")

    set (APPLE_VISION True)
else (IOS_PLATFORM STREQUAL "OS")
    message (FATAL_ERROR "Unsupported IOS_PLATFORM value selected. Please choose OS, SIMULATOR, or WATCHOS.")
endif ()

# All iOS/Darwin specific settings - some may be redundant
set (CMAKE_SHARED_LIBRARY_PREFIX "lib")
set (CMAKE_SHARED_LIBRARY_SUFFIX ".dylib")
set (CMAKE_SHARED_MODULE_PREFIX "lib")
set (CMAKE_SHARED_MODULE_SUFFIX ".so")
set (CMAKE_MODULE_EXISTS 1)
set (CMAKE_DL_LIBS "")

set (CMAKE_C_OSX_COMPATIBILITY_VERSION_FLAG "-compatibility_version ")
set (CMAKE_C_OSX_CURRENT_VERSION_FLAG "-current_version ")
set (CMAKE_CXX_OSX_COMPATIBILITY_VERSION_FLAG "${CMAKE_C_OSX_COMPATIBILITY_VERSION_FLAG}")
set (CMAKE_CXX_OSX_CURRENT_VERSION_FLAG "${CMAKE_C_OSX_CURRENT_VERSION_FLAG}")

if (IOS_DEPLOYMENT_TARGET)
    set (XCODE_IOS_PLATFORM_VERSION_FLAGS "-m${XCODE_IOS_PLATFORM}-version-min=${IOS_DEPLOYMENT_TARGET}")
endif()

set (CMAKE_SHARED_LINKER_FLAGS_INIT "-fapplication-extension")
set (CMAKE_C_FLAGS_INIT "${XCODE_IOS_PLATFORM_VERSION_FLAGS}")
# Hidden visibility is required for cxx on iOS
set (CMAKE_CXX_FLAGS_INIT "${XCODE_IOS_PLATFORM_VERSION_FLAGS} -fvisibility-inlines-hidden")

set (CMAKE_C_LINK_FLAGS   "${XCODE_IOS_PLATFORM_VERSION_FLAGS} -fapplication-extension -Wl,-search_paths_first ${CMAKE_C_LINK_FLAGS}")
set (CMAKE_CXX_LINK_FLAGS "${XCODE_IOS_PLATFORM_VERSION_FLAGS} -fapplication-extension -Wl,-search_paths_first ${CMAKE_CXX_LINK_FLAGS}")

set (CMAKE_PLATFORM_HAS_INSTALLNAME 1)
set (CMAKE_SHARED_LIBRARY_CREATE_C_FLAGS "-dynamiclib -headerpad_max_install_names")
set (CMAKE_SHARED_MODULE_CREATE_C_FLAGS "-bundle -headerpad_max_install_names")
set (CMAKE_SHARED_MODULE_LOADER_C_FLAG "-Wl,-bundle_loader,")
set (CMAKE_SHARED_MODULE_LOADER_CXX_FLAG "-Wl,-bundle_loader,")
set (CMAKE_FIND_LIBRARY_SUFFIXES ".dylib" ".so" ".a")

# hack: if a new cmake (which uses CMAKE_INSTALL_NAME_TOOL) runs on an old build tree
# (where install_name_tool was hardcoded) and where CMAKE_INSTALL_NAME_TOOL isn't in the cache
# and still cmake didn't fail in CMakeFindBinUtils.cmake (because it isn't rerun)
# hardcode CMAKE_INSTALL_NAME_TOOL here to install_name_tool, so it behaves as it did before, Alex
if (NOT DEFINED CMAKE_INSTALL_NAME_TOOL)
    find_program(CMAKE_INSTALL_NAME_TOOL install_name_tool)
endif (NOT DEFINED CMAKE_INSTALL_NAME_TOOL)

# Setup iOS deployment target
set (IOS_DEPLOYMENT_TARGET ${IOS_DEPLOYMENT_TARGET} CACHE STRING "Minimum iOS version")

# Setup iOS developer location unless specified manually with CMAKE_IOS_DEVELOPER_ROOT
# Note Xcode 4.3 changed the installation location, choose the most recent one available
execute_process(COMMAND /usr/bin/xcode-select -print-path OUTPUT_VARIABLE CMAKE_XCODE_DEVELOPER_DIR OUTPUT_STRIP_TRAILING_WHITESPACE)
set (XCODE_POST_43_ROOT "${CMAKE_XCODE_DEVELOPER_DIR}/Platforms/${IOS_PLATFORM_LOCATION}/Developer")
set (XCODE_PRE_43_ROOT "/Developer/Platforms/${IOS_PLATFORM_LOCATION}/Developer")
if (NOT DEFINED CMAKE_IOS_DEVELOPER_ROOT)
    if (EXISTS ${XCODE_POST_43_ROOT})
        set (CMAKE_IOS_DEVELOPER_ROOT ${XCODE_POST_43_ROOT})
    elseif (EXISTS ${XCODE_PRE_43_ROOT})
        set (CMAKE_IOS_DEVELOPER_ROOT ${XCODE_PRE_43_ROOT})
    endif (EXISTS ${XCODE_POST_43_ROOT})
endif (NOT DEFINED CMAKE_IOS_DEVELOPER_ROOT)
set (CMAKE_IOS_DEVELOPER_ROOT ${CMAKE_IOS_DEVELOPER_ROOT} CACHE PATH "Location of iOS Platform")

# Find and use the most recent iOS sdk unless specified manually with CMAKE_IOS_SDK_ROOT
if (NOT DEFINED CMAKE_IOS_SDK_ROOT)
    file (GLOB _CMAKE_IOS_SDKS "${CMAKE_IOS_DEVELOPER_ROOT}/SDKs/*")
    if (_CMAKE_IOS_SDKS)
        list (SORT _CMAKE_IOS_SDKS)
        list (REVERSE _CMAKE_IOS_SDKS)
        list (GET _CMAKE_IOS_SDKS 0 CMAKE_IOS_SDK_ROOT)
    else (_CMAKE_IOS_SDKS)
        message (FATAL_ERROR "No iOS SDK's found in default search path ${CMAKE_IOS_DEVELOPER_ROOT}. Manually set CMAKE_IOS_SDK_ROOT or install the iOS SDK.")
    endif (_CMAKE_IOS_SDKS)
    message (STATUS "Toolchain using default iOS SDK: ${CMAKE_IOS_SDK_ROOT}")
endif (NOT DEFINED CMAKE_IOS_SDK_ROOT)
set (CMAKE_IOS_SDK_ROOT ${CMAKE_IOS_SDK_ROOT} CACHE PATH "Location of the selected iOS SDK")

# Set the sysroot default to the most recent SDK
set (CMAKE_OSX_SYSROOT ${CMAKE_IOS_SDK_ROOT} CACHE PATH "Sysroot used for iOS support")

# Set the architectures unless specified manually with IOS_ARCH
if (NOT DEFINED IOS_ARCH)
    if (IOS_PLATFORM STREQUAL "OS")
        set (IOS_ARCH "arm64")
    elseif (IOS_PLATFORM STREQUAL "SIMULATOR")
        set (IOS_ARCH "x86_64;arm64")
    elseif (IOS_PLATFORM STREQUAL "WATCHOS")
        set (IOS_ARCH "armv7k;arm64_32;arm64")

        # Include C++ Standard Library for Xcode 15 builds.
        include_directories(SYSTEM "${CMAKE_IOS_SDK_ROOT}/usr/include/c++/v1")
    elseif (IOS_PLATFORM STREQUAL "WATCHSIMULATOR")
        set (IOS_ARCH "x86_64;arm64")

        # Include C++ Standard Library for Xcode 15 builds.
        include_directories(SYSTEM "${CMAKE_IOS_SDK_ROOT}/usr/include/c++/v1")
    elseif (IOS_PLATFORM STREQUAL "TVOS")
        set (IOS_ARCH "arm64")
    elseif (IOS_PLATFORM STREQUAL "TVSIMULATOR")
        set (IOS_ARCH "x86_64;arm64")
    elseif (IOS_PLATFORM STREQUAL "VISIONOS")
        set (IOS_ARCH "arm64")
    elseif (IOS_PLATFORM STREQUAL "VISIONSIMULATOR")
        set (IOS_ARCH "x86_64;arm64")
    endif()
endif()
message (STATUS "The iOS architectures: ${IOS_ARCH}")

set (CMAKE_OSX_ARCHITECTURES ${IOS_ARCH} CACHE STRING "Build architecture for iOS")

# Set the find root to the iOS developer roots and to user defined paths
set (CMAKE_FIND_ROOT_PATH ${CMAKE_IOS_DEVELOPER_ROOT} ${CMAKE_IOS_SDK_ROOT} ${CMAKE_PREFIX_PATH} CACHE STRING "iOS find search path root")

# default to searching for frameworks first
set (CMAKE_FIND_FRAMEWORK FIRST)

# set up the default search directories for frameworks
set (CMAKE_SYSTEM_FRAMEWORK_PATH
    ${CMAKE_IOS_SDK_ROOT}/System/Library/Frameworks
    ${CMAKE_IOS_SDK_ROOT}/System/Library/PrivateFrameworks
    ${CMAKE_IOS_SDK_ROOT}/Developer/Library/Frameworks
)

# only search the iOS sdks, not the remainder of the host filesystem
set (CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
set (CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)

# This little macro lets you set any Xcode specific property
macro (set_xcode_property TARGET XCODE_PROPERTY XCODE_VALUE)
    set_property (TARGET ${TARGET} PROPERTY XCODE_ATTRIBUTE_${XCODE_PROPERTY} ${XCODE_VALUE})
endmacro (set_xcode_property)

# This macro lets you find executable programs on the host system
macro (find_host_package)
    set (CMAKE_FIND_ROOT_PATH_MODE_LIBRARY NEVER)
    set (CMAKE_FIND_ROOT_PATH_MODE_INCLUDE NEVER)
    set (IOS FALSE)

    find_package(${ARGN})

    set (IOS TRUE)
    set (CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
    set (CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
endmacro (find_host_package)

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	# This file is based off of the Platform/Darwin.cmake and Platform/UnixPaths.cmake
	# files which are included with CMake 2.8.4
	# It has been altered for iOS development

	# Options:
	#
	# IOS_PLATFORM = OS (default) or SIMULATOR
	# This decides if SDKS will be selected from the iPhoneOS.platform or iPhoneSimulator.platform folders
	# OS - the default, used to build for iPhone and iPad physical devices, which have an arm arch.
	# SIMULATOR - used to build for the Simulator platforms, which have an x86 arch.
	#
	# IOS_ARCH = automatic(default) or "arch1;arch2" (e.q. "x86_64;arm64")
	# By default this value will be automatically chosen based on the IOS_PLATFORM value above.
	# If set manually, it will override the default and force to build those architectures only.
	#
	# CMAKE_IOS_DEVELOPER_ROOT = automatic(default) or /path/to/platform/Developer folder
	# By default this location is automatically chosen based on the IOS_PLATFORM value above.
	# If set manually, it will override the default location and force the user of a particular Developer Platform
	#
	# CMAKE_IOS_SDK_ROOT = automatic(default) or /path/to/platform/Developer/SDKs/SDK folder
	# By default this location is automatically chosen based on the CMAKE_IOS_DEVELOPER_ROOT value.
	# In this case it will always be the most up-to-date SDK found in the CMAKE_IOS_DEVELOPER_ROOT path.
	# If set manually, this will force the use of a specific SDK version

	# Macros:
	#
	# set_xcode_property (TARGET XCODE_PROPERTY XCODE_VALUE)
	# A convenience macro for setting xcode specific properties on targets
	# example: set_xcode_property (myioslib IPHONEOS_DEPLOYMENT_TARGET "3.1")
	#
	# find_host_package (PROGRAM ARGS)
	# A macro used to find executable programs on the host system, not within the iOS environment.
	# Thanks to the android-cmake project for providing the command

	# Standard settings
	set (CMAKE_SYSTEM_NAME Darwin)
	set (CMAKE_SYSTEM_VERSION 1)
	set (UNIX True)
	set (APPLE True)
	set (IOS True)

	# Required as of cmake 2.8.10
	set (CMAKE_OSX_DEPLOYMENT_TARGET "" CACHE STRING "Force unset of the deployment target for iOS" FORCE)

	# Determine the cmake host system version so we know where to find the iOS SDKs
	find_program (CMAKE_UNAME uname /bin /usr/bin /usr/local/bin)
	if (CMAKE_UNAME)
	execute_process(COMMAND uname -r OUTPUT_VARIABLE CMAKE_HOST_SYSTEM_VERSION OUTPUT_STRIP_TRAILING_WHITESPACE)
	string (REGEX REPLACE "^([0-9]+)\\.([0-9]+).*$" "\\1" DARWIN_MAJOR_VERSION "${CMAKE_HOST_SYSTEM_VERSION}")
	endif (CMAKE_UNAME)

	# Force the compilers to gcc for iOS
	set (CMAKE_C_COMPILER /usr/bin/gcc)
	set (CMAKE_CXX_COMPILER /usr/bin/g++)
	set (CMAKE_AR ar CACHE FILEPATH "" FORCE)
	set (CMAKE_RANLIB ranlib CACHE FILEPATH "" FORCE)
	set (PKG_CONFIG_EXECUTABLE pkg-config CACHE FILEPATH "" FORCE)

	# Setup iOS platform unless specified manually with IOS_PLATFORM
	if (NOT DEFINED IOS_PLATFORM)
	set (IOS_PLATFORM "OS")
	endif (NOT DEFINED IOS_PLATFORM)
	set (IOS_PLATFORM ${IOS_PLATFORM} CACHE STRING "Type of iOS Platform")

	# Check the platform selection and setup for developer root
	if (IOS_PLATFORM STREQUAL "OS")
	set (IOS_PLATFORM_LOCATION "iPhoneOS.platform")
	set (XCODE_IOS_PLATFORM ios)

	# This causes the installers to properly locate the output libraries
	set (CMAKE_XCODE_EFFECTIVE_PLATFORMS "-iphoneos")

	set (APPLE_IOS True)
	elseif (IOS_PLATFORM STREQUAL "SIMULATOR")
	set (SIMULATOR_FLAG true)
	set (IOS_PLATFORM_LOCATION "iPhoneSimulator.platform")
	set (XCODE_IOS_PLATFORM ios-simulator)

	# This causes the installers to properly locate the output libraries
	set (CMAKE_XCODE_EFFECTIVE_PLATFORMS "-iphonesimulator")

	set (APPLE_IOS True)
	elseif (IOS_PLATFORM STREQUAL "WATCHOS")
	set (IOS_PLATFORM_LOCATION "WatchOS.platform")
	set (XCODE_IOS_PLATFORM watchos)

	# This causes the installers to properly locate the output libraries
	set (CMAKE_XCODE_EFFECTIVE_PLATFORMS "-watchos")

	set (APPLE_WATCH True)
	elseif (IOS_PLATFORM STREQUAL "WATCHSIMULATOR")
	set (SIMULATOR_FLAG true)
	set (IOS_PLATFORM_LOCATION "WatchSimulator.platform")
	set (XCODE_IOS_PLATFORM watchos-simulator)

	# This causes the installers to properly locate the output libraries
	set (CMAKE_XCODE_EFFECTIVE_PLATFORMS "-watchsimulator")

	set (APPLE_WATCH True)
	elseif (IOS_PLATFORM STREQUAL "TVOS")
	set (IOS_PLATFORM_LOCATION "AppleTvOS.platform")
	set (XCODE_IOS_PLATFORM tvos)

	# This causes the installers to properly locate the output libraries
	set (CMAKE_XCODE_EFFECTIVE_PLATFORMS "-appletvos")

	set (APPLE_TV True)
	elseif (IOS_PLATFORM STREQUAL "TVSIMULATOR")
	set (SIMULATOR_FLAG true)
	set (IOS_PLATFORM_LOCATION "AppleTvSimulator.platform")
	set (XCODE_IOS_PLATFORM tvos-simulator)

	# This causes the installers to properly locate the output libraries
	set (CMAKE_XCODE_EFFECTIVE_PLATFORMS "-tvsimulator")

	set (APPLE_TV True)
	elseif (IOS_PLATFORM STREQUAL "VISIONOS")
	set (IOS_PLATFORM_LOCATION "XROS.platform")
	set (XCODE_IOS_PLATFORM xros)

	# This causes the installers to properly locate the output libraries
	set (CMAKE_XCODE_EFFECTIVE_PLATFORMS "-xros")

	set (APPLE_VISION True)
	elseif (IOS_PLATFORM STREQUAL "VISIONSIMULATOR")
	set (SIMULATOR_FLAG true)
	set (IOS_PLATFORM_LOCATION "XRSimulator.platform")
	set (XCODE_IOS_PLATFORM xros-simulator)

	# This causes the installers to properly locate the output libraries
	set (CMAKE_XCODE_EFFECTIVE_PLATFORMS "-xrsimulator")

	set (APPLE_VISION True)
	else (IOS_PLATFORM STREQUAL "OS")
	message (FATAL_ERROR "Unsupported IOS_PLATFORM value selected. Please choose OS, SIMULATOR, or WATCHOS.")
	endif ()

	# All iOS/Darwin specific settings - some may be redundant
	set (CMAKE_SHARED_LIBRARY_PREFIX "lib")
	set (CMAKE_SHARED_LIBRARY_SUFFIX ".dylib")
	set (CMAKE_SHARED_MODULE_PREFIX "lib")
	set (CMAKE_SHARED_MODULE_SUFFIX ".so")
	set (CMAKE_MODULE_EXISTS 1)
	set (CMAKE_DL_LIBS "")

	set (CMAKE_C_OSX_COMPATIBILITY_VERSION_FLAG "-compatibility_version ")
	set (CMAKE_C_OSX_CURRENT_VERSION_FLAG "-current_version ")
	set (CMAKE_CXX_OSX_COMPATIBILITY_VERSION_FLAG "${CMAKE_C_OSX_COMPATIBILITY_VERSION_FLAG}")
	set (CMAKE_CXX_OSX_CURRENT_VERSION_FLAG "${CMAKE_C_OSX_CURRENT_VERSION_FLAG}")

	if (IOS_DEPLOYMENT_TARGET)
	set (XCODE_IOS_PLATFORM_VERSION_FLAGS "-m${XCODE_IOS_PLATFORM}-version-min=${IOS_DEPLOYMENT_TARGET}")
	endif()

	set (CMAKE_SHARED_LINKER_FLAGS_INIT "-fapplication-extension")
	set (CMAKE_C_FLAGS_INIT "${XCODE_IOS_PLATFORM_VERSION_FLAGS}")
	# Hidden visibility is required for cxx on iOS
	set (CMAKE_CXX_FLAGS_INIT "${XCODE_IOS_PLATFORM_VERSION_FLAGS} -fvisibility-inlines-hidden")

	set (CMAKE_C_LINK_FLAGS "${XCODE_IOS_PLATFORM_VERSION_FLAGS} -fapplication-extension -Wl,-search_paths_first ${CMAKE_C_LINK_FLAGS}")
	set (CMAKE_CXX_LINK_FLAGS "${XCODE_IOS_PLATFORM_VERSION_FLAGS} -fapplication-extension -Wl,-search_paths_first ${CMAKE_CXX_LINK_FLAGS}")

	set (CMAKE_PLATFORM_HAS_INSTALLNAME 1)
	set (CMAKE_SHARED_LIBRARY_CREATE_C_FLAGS "-dynamiclib -headerpad_max_install_names")
	set (CMAKE_SHARED_MODULE_CREATE_C_FLAGS "-bundle -headerpad_max_install_names")
	set (CMAKE_SHARED_MODULE_LOADER_C_FLAG "-Wl,-bundle_loader,")
	set (CMAKE_SHARED_MODULE_LOADER_CXX_FLAG "-Wl,-bundle_loader,")
	set (CMAKE_FIND_LIBRARY_SUFFIXES ".dylib" ".so" ".a")

	# hack: if a new cmake (which uses CMAKE_INSTALL_NAME_TOOL) runs on an old build tree
	# (where install_name_tool was hardcoded) and where CMAKE_INSTALL_NAME_TOOL isn't in the cache
	# and still cmake didn't fail in CMakeFindBinUtils.cmake (because it isn't rerun)
	# hardcode CMAKE_INSTALL_NAME_TOOL here to install_name_tool, so it behaves as it did before, Alex
	if (NOT DEFINED CMAKE_INSTALL_NAME_TOOL)
	find_program(CMAKE_INSTALL_NAME_TOOL install_name_tool)
	endif (NOT DEFINED CMAKE_INSTALL_NAME_TOOL)

	# Setup iOS deployment target
	set (IOS_DEPLOYMENT_TARGET ${IOS_DEPLOYMENT_TARGET} CACHE STRING "Minimum iOS version")

	# Setup iOS developer location unless specified manually with CMAKE_IOS_DEVELOPER_ROOT
	# Note Xcode 4.3 changed the installation location, choose the most recent one available
	execute_process(COMMAND /usr/bin/xcode-select -print-path OUTPUT_VARIABLE CMAKE_XCODE_DEVELOPER_DIR OUTPUT_STRIP_TRAILING_WHITESPACE)
	set (XCODE_POST_43_ROOT "${CMAKE_XCODE_DEVELOPER_DIR}/Platforms/${IOS_PLATFORM_LOCATION}/Developer")
	set (XCODE_PRE_43_ROOT "/Developer/Platforms/${IOS_PLATFORM_LOCATION}/Developer")
	if (NOT DEFINED CMAKE_IOS_DEVELOPER_ROOT)
	if (EXISTS ${XCODE_POST_43_ROOT})
	set (CMAKE_IOS_DEVELOPER_ROOT ${XCODE_POST_43_ROOT})
	elseif (EXISTS ${XCODE_PRE_43_ROOT})
	set (CMAKE_IOS_DEVELOPER_ROOT ${XCODE_PRE_43_ROOT})
	endif (EXISTS ${XCODE_POST_43_ROOT})
	endif (NOT DEFINED CMAKE_IOS_DEVELOPER_ROOT)
	set (CMAKE_IOS_DEVELOPER_ROOT ${CMAKE_IOS_DEVELOPER_ROOT} CACHE PATH "Location of iOS Platform")

	# Find and use the most recent iOS sdk unless specified manually with CMAKE_IOS_SDK_ROOT
	if (NOT DEFINED CMAKE_IOS_SDK_ROOT)
	file (GLOB _CMAKE_IOS_SDKS "${CMAKE_IOS_DEVELOPER_ROOT}/SDKs/*")
	if (_CMAKE_IOS_SDKS)
	list (SORT _CMAKE_IOS_SDKS)
	list (REVERSE _CMAKE_IOS_SDKS)
	list (GET _CMAKE_IOS_SDKS 0 CMAKE_IOS_SDK_ROOT)
	else (_CMAKE_IOS_SDKS)
	message (FATAL_ERROR "No iOS SDK's found in default search path ${CMAKE_IOS_DEVELOPER_ROOT}. Manually set CMAKE_IOS_SDK_ROOT or install the iOS SDK.")
	endif (_CMAKE_IOS_SDKS)
	message (STATUS "Toolchain using default iOS SDK: ${CMAKE_IOS_SDK_ROOT}")
	endif (NOT DEFINED CMAKE_IOS_SDK_ROOT)
	set (CMAKE_IOS_SDK_ROOT ${CMAKE_IOS_SDK_ROOT} CACHE PATH "Location of the selected iOS SDK")

	# Set the sysroot default to the most recent SDK
	set (CMAKE_OSX_SYSROOT ${CMAKE_IOS_SDK_ROOT} CACHE PATH "Sysroot used for iOS support")

	# Set the architectures unless specified manually with IOS_ARCH
	if (NOT DEFINED IOS_ARCH)
	if (IOS_PLATFORM STREQUAL "OS")
	set (IOS_ARCH "arm64")
	elseif (IOS_PLATFORM STREQUAL "SIMULATOR")
	set (IOS_ARCH "x86_64;arm64")
	elseif (IOS_PLATFORM STREQUAL "WATCHOS")
	set (IOS_ARCH "armv7k;arm64_32;arm64")

	# Include C++ Standard Library for Xcode 15 builds.
	include_directories(SYSTEM "${CMAKE_IOS_SDK_ROOT}/usr/include/c++/v1")
	elseif (IOS_PLATFORM STREQUAL "WATCHSIMULATOR")
	set (IOS_ARCH "x86_64;arm64")

	# Include C++ Standard Library for Xcode 15 builds.
	include_directories(SYSTEM "${CMAKE_IOS_SDK_ROOT}/usr/include/c++/v1")
	elseif (IOS_PLATFORM STREQUAL "TVOS")
	set (IOS_ARCH "arm64")
	elseif (IOS_PLATFORM STREQUAL "TVSIMULATOR")
	set (IOS_ARCH "x86_64;arm64")
	elseif (IOS_PLATFORM STREQUAL "VISIONOS")
	set (IOS_ARCH "arm64")
	elseif (IOS_PLATFORM STREQUAL "VISIONSIMULATOR")
	set (IOS_ARCH "x86_64;arm64")
	endif()
	endif()
	message (STATUS "The iOS architectures: ${IOS_ARCH}")

	set (CMAKE_OSX_ARCHITECTURES ${IOS_ARCH} CACHE STRING "Build architecture for iOS")

	# Set the find root to the iOS developer roots and to user defined paths
	set (CMAKE_FIND_ROOT_PATH ${CMAKE_IOS_DEVELOPER_ROOT} ${CMAKE_IOS_SDK_ROOT} ${CMAKE_PREFIX_PATH} CACHE STRING "iOS find search path root")

	# default to searching for frameworks first
	set (CMAKE_FIND_FRAMEWORK FIRST)

	# set up the default search directories for frameworks
	set (CMAKE_SYSTEM_FRAMEWORK_PATH
	${CMAKE_IOS_SDK_ROOT}/System/Library/Frameworks
	${CMAKE_IOS_SDK_ROOT}/System/Library/PrivateFrameworks
	${CMAKE_IOS_SDK_ROOT}/Developer/Library/Frameworks
	)

	# only search the iOS sdks, not the remainder of the host filesystem
	set (CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
	set (CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)

	# This little macro lets you set any Xcode specific property
	macro (set_xcode_property TARGET XCODE_PROPERTY XCODE_VALUE)
	set_property (TARGET ${TARGET} PROPERTY XCODE_ATTRIBUTE_${XCODE_PROPERTY} ${XCODE_VALUE})
	endmacro (set_xcode_property)

	# This macro lets you find executable programs on the host system
	macro (find_host_package)
	set (CMAKE_FIND_ROOT_PATH_MODE_LIBRARY NEVER)
	set (CMAKE_FIND_ROOT_PATH_MODE_INCLUDE NEVER)
	set (IOS FALSE)

	find_package(${ARGN})

	set (IOS TRUE)
	set (CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
	set (CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
	endmacro (find_host_package)