#!/bin/sh

PLATFORM_IOS=/Developer/Platforms/iPhoneOS.platform/ PLATFORM_IOS_SIM=/Developer/Platforms/iPhoneSimulator.platform/ SDK_IOS_VERSION=“4.2” MIN_IOS_VERSION=“3.0” OUTPUT_DIR=“universal-ios”

build_target () {

local platform=$1
local sdk=$2
local arch=$3
local triple=$4
local builddir=$5

mkdir -p "${builddir}"
pushd "${builddir}"
export CC="${platform}"/Developer/usr/bin/gcc-4.2
export CFLAGS="-arch ${arch} -isysroot ${sdk} -miphoneos-version-min=${MIN_IOS_VERSION}"
../configure --host=${triple} && make
popd

}

# Build all targets build_target “${PLATFORM_IOS}” “${PLATFORM_IOS}/Developer/SDKs/iPhoneOS${SDK_IOS_VERSION}.sdk/” armv6 arm-apple-darwin10 armv6-ios build_target “${PLATFORM_IOS}” “${PLATFORM_IOS}/Developer/SDKs/iPhoneOS${SDK_IOS_VERSION}.sdk/” armv7 arm-apple-darwin10 armv7-ios build_target “${PLATFORM_IOS_SIM}” “${PLATFORM_IOS_SIM}/Developer/SDKs/iPhoneSimulator${SDK_IOS_VERSION}.sdk/” i386 i386-apple-darwin10 i386-ios-sim

# Create universal output directories mkdir -p “${OUTPUT_DIR}” mkdir -p “${OUTPUT_DIR}/include” mkdir -p “${OUTPUT_DIR}/include/armv6” mkdir -p “${OUTPUT_DIR}/include/armv7” mkdir -p “${OUTPUT_DIR}/include/i386”

# Create the universal binary lipo -create armv6-ios/.libs/libffi.a armv7-ios/.libs/libffi.a i386-ios-sim/.libs/libffi.a -output “${OUTPUT_DIR}/libffi.a”

# Copy in the headers copy_headers () {

local src=$1
local dest=$2

# Fix non-relative header reference
sed 's/<ffitarget.h>/"ffitarget.h"/' < "${src}/include/ffi.h" > "${dest}/ffi.h"
cp "${src}/include/ffitarget.h" "${dest}"

}

copy_headers armv6-ios “${OUTPUT_DIR}/include/armv6” copy_headers armv7-ios “${OUTPUT_DIR}/include/armv7” copy_headers i386-ios-sim “${OUTPUT_DIR}/include/i386”

# Create top-level header ( cat << EOF ifdef __arm__

#include <arm/arch.h>
#ifdef _ARM_ARCH_6
  #include "include/armv6/ffi.h"
#elif _ARM_ARCH_7
  #include "include/armv7/ffi.h"
#endif

elif defined(i386)

#include "include/i386/ffi.h"

endif EOF ) > “${OUTPUT_DIR}/ffi.h”