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# To cross compile for iPhone:
# build$ cmake .. -DCMAKE_TOOLCHAIN_FILE=../contrib/cmake/CrossCompile-iOS.cmake
SET(CMAKE_SYSTEM_NAME Generic)
if (NOT "$ENV{IOS_SDK_VERSION}" STREQUAL "")
SET(CMAKE_SYSTEM_VERSION $ENV{IOS_SDK_VERSION})
endif()
SET(CMAKE_SYSTEM_PROCESSOR arm)
SET(CMAKE_CROSSCOMPILING_TARGET IOS)
SET(IOS ON)
SET(UNIX ON)
SET(APPLE ON)
execute_process(COMMAND xcode-select -print-path
OUTPUT_VARIABLE XCODE_SELECT OUTPUT_STRIP_TRAILING_WHITESPACE)
if(EXISTS ${XCODE_SELECT})
SET(DEVROOT "${XCODE_SELECT}/Platforms/iPhoneOS.platform/Developer")
if (NOT EXISTS "${DEVROOT}/SDKs/iPhoneOS${CMAKE_SYSTEM_VERSION}.sdk")
# specified SDK version does not exist, use last one
file(GLOB INSTALLED_SDKS ${DEVROOT}/SDKs/*)
list(SORT INSTALLED_SDKS)
list(REVERSE INSTALLED_SDKS)
list(GET INSTALLED_SDKS 0 LATEST_SDK)
string(REGEX MATCH "[0-9]\\.[0-9]" CMAKE_SYSTEM_VERSION ${LATEST_SDK})
endif()
else()
SET(DEVROOT "/Developer/Platforms/iPhoneOS.platform/Developer")
endif()
set(IOS6_OR_LATER OFF)
if (${CMAKE_SYSTEM_VERSION} VERSION_EQUAL "5.0" OR ${CMAKE_SYSTEM_VERSION} VERSION_GREATER "5.0")
SET(CMAKE_OSX_ARCHITECTURES armv6 armv7)
SET(ARCHS "-arch armv6 -arch armv7")
endif()
if (${CMAKE_SYSTEM_VERSION} VERSION_EQUAL "6.0" OR ${CMAKE_SYSTEM_VERSION} VERSION_GREATER "6.0")
set(IOS6_OR_LATER ON)
SET(CMAKE_OSX_ARCHITECTURES armv7 armv7s)
SET(ARCHS "-arch armv7 -arch armv7s")
endif()
if (${CMAKE_SYSTEM_VERSION} VERSION_EQUAL "7.0" OR ${CMAKE_SYSTEM_VERSION} VERSION_GREATER "7.0")
set(IOS6_OR_LATER ON)
SET(CMAKE_OSX_ARCHITECTURES armv7 armv7s)
SET(ARCHS "-arch armv7 -arch armv7s")
# SET(CMAKE_OSX_ARCHITECTURES armv7 armv7s arm64)
# SET(ARCHS "-arch armv7 -arch armv7s -arch arm64")
endif()
if (IOS6_OR_LATER)
# no armv6 support in ios6 - armv7s was added, but we did no compile our dependencies for it
# we have to use clang - llvm will choke on those __has_feature macros?
SET (CMAKE_C_COMPILER "/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang")
SET (CMAKE_CXX_COMPILER "/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang++")
SET (CMAKE_AR "/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ar" CACHE FILEPATH "" FORCE)
SET (CMAKE_LINKER "/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld" CACHE FILEPATH "" FORCE)
SET (CMAKE_NM "/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/nm" CACHE FILEPATH "" FORCE)
SET (CMAKE_STRIP "/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/strip" CACHE FILEPATH "" FORCE)
if ($ENV{MACOSX_DEPLOYMENT_TARGET})
message(FATAL_ERROR "llvm will croak with MACOSX_DEPLOYMENT_TARGET environment variable set when building for ios - unset MACOSX_DEPLOYMENT_TARGET")
endif()
else()
SET (CMAKE_C_COMPILER "${DEVROOT}/usr/bin/gcc")
SET (CMAKE_CXX_COMPILER "${DEVROOT}/usr/bin/g++")
endif()
SET(SDKROOT "${DEVROOT}/SDKs/iPhoneOS${CMAKE_SYSTEM_VERSION}.sdk")
SET(CMAKE_OSX_SYSROOT "${SDKROOT}")
SET(CMAKE_SYSTEM_PREFIX_PATH "/;/usr;/usr/local;/opt/local")
# This gets overridden somewhere!
SET(CMAKE_FIND_LIBRARY_SUFFIXES ".a;.so;.dylib")
set(CMAKE_SYSTEM_FRAMEWORK_PATH
~/Library/Frameworks
/Library/Frameworks
/Network/Library/Frameworks
/System/Library/Frameworks)
# force compiler and linker flags
SET(CMAKE_C_LINK_FLAGS ${ARCHS})
SET(CMAKE_CXX_LINK_FLAGS ${ARCHS})
# SET(CMAKE_C_FLAGS ${ARCHS}) # C_FLAGS wont stick, use ADD_DEFINITIONS instead
# SET(CMAKE_CXX_FLAGS ${ARCHS})
ADD_DEFINITIONS(${ARCHS})
ADD_DEFINITIONS("--sysroot=${SDKROOT}")
# ios headers
INCLUDE_DIRECTORIES(SYSTEM "${SDKROOT}/usr/include")
# ios libraries
LINK_DIRECTORIES("${SDKROOT}/usr/lib/system")
LINK_DIRECTORIES("${SDKROOT}/usr/lib")
SET (CMAKE_FIND_ROOT_PATH "${SDKROOT}")
SET (CMAKE_FIND_ROOT_PATH_MODE_PROGRAM BOTH)
SET (CMAKE_FIND_ROOT_PATH_MODE_LIBRARY BOTH)
SET (CMAKE_FIND_ROOT_PATH_MODE_INCLUDE BOTH)
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