cross-macos-arm64.cmake

# Macros:
#
# 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(CMAKE_CROSSCOMPILING TRUE)
set (UNIX TRUE)
set (APPLE TRUE)
set (IOS FALSE)

if(NOT DEFINED ENV{OSXCROSS_TARGET} OR NOT DEFINED ENV{OSXCROSS_SDK})
    message(FATAL_ERROR "Run eval `osxcross-conf` before compilation")
endif()

set(CMAKE_OSX_SYSROOT $ENV{OSXCROSS_SDK} CACHE INTERNAL "")

set(CMAKE_SYSTEM_NAME Darwin)

set(CMAKE_C_COMPILER oa64-clang)
set(CMAKE_CXX_COMPILER oa64-clang++)
set(CMAKE_INSTALL_NAME_TOOL aarch64-apple-$ENV{OSXCROSS_TARGET}-install_name_tool)
set(CMAKE_OTOOL aarch64-apple-$ENV{OSXCROSS_TARGET}-otool)

set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ONLY)

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

# Skip the platform compiler checks for cross compiling
set (CMAKE_CXX_COMPILER_WORKS TRUE)
set (CMAKE_C_COMPILER_WORKS TRUE)

# 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}")

# Hidden visibilty is required for cxx on iOS 
set (CMAKE_C_FLAGS_INIT "${BITCODE_FLAGS}")
set (CMAKE_CXX_FLAGS_INIT "-fvisibility=hidden -fvisibility-inlines-hidden ${BITCODE_FLAGS}")

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

set (CMAKE_PLATFORM_HAS_INSTALLNAME 1)
set (CMAKE_SHARED_LIBRARY_CREATE_C_FLAGS "-dynamiclib")
set (CMAKE_SHARED_MODULE_CREATE_C_FLAGS "-bundle")
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")

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

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


# This macro lets you find executable programs on the host system
macro (find_host_package)
	set (CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
	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_PROGRAM ONLY)
	set (CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
	set (CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
endmacro (find_host_package)