1#!/bin/sh
2
3PLATFORM_IOS=/Developer/Platforms/iPhoneOS.platform/
4PLATFORM_IOS_SIM=/Developer/Platforms/iPhoneSimulator.platform/
5SDK_IOS_VERSION="4.2"
6MIN_IOS_VERSION="3.0"
7OUTPUT_DIR="universal-ios"
8
9build_target () {
10    local platform=$1
11    local sdk=$2
12    local arch=$3
13    local triple=$4
14    local builddir=$5
15
16    mkdir -p "${builddir}"
17    pushd "${builddir}"
18    export CC="${platform}"/Developer/usr/bin/gcc-4.2
19    export CFLAGS="-arch ${arch} -isysroot ${sdk} -miphoneos-version-min=${MIN_IOS_VERSION}"
20    ../configure --host=${triple} && make
21    popd
22}
23
24# Build all targets
25build_target "${PLATFORM_IOS}" "${PLATFORM_IOS}/Developer/SDKs/iPhoneOS${SDK_IOS_VERSION}.sdk/" armv6 arm-apple-darwin10 armv6-ios
26build_target "${PLATFORM_IOS}" "${PLATFORM_IOS}/Developer/SDKs/iPhoneOS${SDK_IOS_VERSION}.sdk/" armv7 arm-apple-darwin10 armv7-ios
27build_target "${PLATFORM_IOS_SIM}" "${PLATFORM_IOS_SIM}/Developer/SDKs/iPhoneSimulator${SDK_IOS_VERSION}.sdk/" i386 i386-apple-darwin10 i386-ios-sim
28
29# Create universal output directories
30mkdir -p "${OUTPUT_DIR}"
31mkdir -p "${OUTPUT_DIR}/include"
32mkdir -p "${OUTPUT_DIR}/include/armv6"
33mkdir -p "${OUTPUT_DIR}/include/armv7"
34mkdir -p "${OUTPUT_DIR}/include/i386"
35
36# Create the universal binary
37lipo -create armv6-ios/.libs/libffi.a armv7-ios/.libs/libffi.a i386-ios-sim/.libs/libffi.a -output "${OUTPUT_DIR}/libffi.a"
38
39# Copy in the headers
40copy_headers () {
41    local src=$1
42    local dest=$2
43
44    # Fix non-relative header reference
45    sed 's/<ffitarget.h>/"ffitarget.h"/' < "${src}/include/ffi.h" > "${dest}/ffi.h"
46    cp "${src}/include/ffitarget.h" "${dest}"
47}
48
49copy_headers armv6-ios "${OUTPUT_DIR}/include/armv6"
50copy_headers armv7-ios "${OUTPUT_DIR}/include/armv7"
51copy_headers i386-ios-sim "${OUTPUT_DIR}/include/i386"
52
53# Create top-level header
54(
55cat << EOF
56#ifdef __arm__
57  #include <arm/arch.h>
58  #ifdef _ARM_ARCH_6
59    #include "include/armv6/ffi.h"
60  #elif _ARM_ARCH_7
61    #include "include/armv7/ffi.h"
62  #endif
63#elif defined(__i386__)
64  #include "include/i386/ffi.h"
65#endif
66EOF
67) > "${OUTPUT_DIR}/ffi.h"
68