Boost build script for iOS (armv7, armv7s, arm64), iOS Simulator (i386, x86_64), and OSX (i386, x86_64)

readme

-- 2016-05-18 UPDATE --
ATTENTION:
I have moved this script to an actual github repository. This will allow you all to create issues, make requests,
etc., without me having to remember to check this gist. It also means I will get emails when issues / questions are created.
It will also make it easier (hopefully) to track versioning.

The latest version there has been updated to build for tvOS (along with some other changes).

The new repository is located here:
https://github.com/faithfracture/Apple-Boost-BuildScript




-- 2015-09-22 UPDATE --
Added command line args!
You can now specify if you want to build just for iOS or OS X, along with some other things.
Run boost.sh -h for more info.
Let me know if there are any other parameters that you think would be useful.

-- 2015-09-18 UPDATE --
Fixed script for iOS Simulator (Thanks @XMitja!)
• There is now a MIN_IOS_VERSION variable. Make sure you set this appropriately.

cleanup function now actually removes all build artifacts

Fixed updateBoost function to move the existing user-config.jam instead 
of copying it. Copying it resulted in writing duplicate entries each time 
the script was run.

NOTE: Currently does not build with bitcode. I will figure that one out when I get time. 
I'm at the cusp of a product release though, so it might be a little while. 
Just disable bitcode for your project for the time being.

-- 2015-08-26 UPDATE --
The resulting libraries from this script are currently not working for
the iOS simulator under Xcode 7 as of beta 6. I have an issue opened
with Apple about this. It does still work for physical devices though.
As soon as I figure out what the problem is, I will post an update.

-- 2014-12-29 UPDATE --

Updated to work with Boost 1.56, 1.57, and 1.58

Automatically choose the currently selected SDK for both iOS and OSX

Fixed a couple places where the wrong $XXX_DEV_CMD was being used

-- END UPDATE --

This is a modified version of Pete Goodliffe's original boost.sh build script,
(and a couple of other sources whom I can't remember)

The original version didn't work with the 64-bit iPhone Simulator,
and didn't build at all for OSX.

This works for Boost 1.56 and 1.57. If you need the version that builds 1.55 and older, use this revision:
  https://gist.github.com/faithfracture/c629ae4c7168216a9856/61be257e1c0839c85743777d0687becad9913bf7

I also ran into an issue where utf8_codecvt_facet.o existed in both the 
program_options and filesystem libraries. When linking against the
framework, there was a missing vtable entry for it. Adding the step
in unpackArchive() that prepends the library name to the .o files
prevents this error.

I hope this keeps at least one other person from ripping their hair out.

Let me know if you find errors or have optimizations.

I will be updating this as often as necessary.

boost.sh

#===============================================================================
# Filename:  boost.sh
# Author:    Pete Goodliffe
# Copyright: (c) Copyright 2009 Pete Goodliffe
# Licence:   Please feel free to use this, with attribution
# Modified version
#===============================================================================
#
# Builds a Boost framework for iOS, iOS Simulator, and OSX.
# Creates a set of universal libraries that can be used on an iOS and in the
# iOS simulator. Then creates a pseudo-framework to make using boost in Xcode
# less painful.
#
# To configure the script, define:
#    BOOST_VERSION:   Which version of Boost to build (e.g. 1.58.0)
#    BOOST_VERSION2:  Same as BOOST_VERSION, but with _ instead of . (e.g. 1_58_0)
#    BOOST_LIBS:      Which Boost libraries to build
#    MIN_IOS_VERSION: Minimum iOS Target Version (e.g. 8.0)
#    IOS_SDK_VERSION: iOS SDK version (e.g. 9.0)
#    OSX_SDK_VERSION: OSX SDK version (e.g. 10.11)
#
# If a boost tarball does not exist in the current directory, this script will
# attempt to download the version specified by BOOST_VERSION. You may also
# manually place a matching tarball in the current directory and the script
# will use that.
#
#===============================================================================

BOOST_LIBS="atomic chrono date_time exception filesystem program_options random signals system test thread"

BUILD_IOS=
BUILD_OSX=
CLEAN=
NO_CLEAN=
NO_FRAMEWORK=

BOOST_VERSION=1.58.0
BOOST_VERSION2=1_58_0
MIN_IOS_VERSION=8.0
IOS_SDK_VERSION=`xcodebuild -showsdks | grep iphoneos | \
    egrep "[[:digit:]]+\.[[:digit:]]+" -o | tail -1`
OSX_SDK_VERSION=`xcodebuild -showsdks | grep macosx | \
    egrep "[[:digit:]]+\.[[:digit:]]+" -o | tail -1`

XCODE_ROOT=`xcode-select -print-path`

# The EXTRA_CPPFLAGS definition works around a thread race issue in
# shared_ptr. I encountered this historically and have not verified that
# the fix is no longer required. Without using the posix thread primitives
# an invalid compare-and-swap ARM instruction (non-thread-safe) was used for the
# shared_ptr use count causing nasty and subtle bugs.
#
# Should perhaps also consider/use instead: -BOOST_SP_USE_PTHREADS
EXTRA_CPPFLAGS="-DBOOST_AC_USE_PTHREADS -DBOOST_SP_USE_PTHREADS -g -DNDEBUG \
    -std=c++11 -stdlib=libc++ -fvisibility=hidden -fvisibility-inlines-hidden"
EXTRA_IOS_CPPFLAGS="$EXTRA_CPPFLAGS -mios-version-min=$MIN_IOS_VERSION"
EXTRA_OSX_CPPFLAGS="$EXTRA_CPPFLAGS"

TARBALLDIR=`pwd`
SRCDIR=$TARBALLDIR/src
IOSOUTPUTDIR=$TARBALLDIR/ios
OSXOUTPUTDIR=$TARBALLDIR/osx
IOSBUILDDIR=$IOSOUTPUTDIR/build
OSXBUILDDIR=$OSXOUTPUTDIR/build
PREFIXDIR=$IOSOUTPUTDIR/prefix
IOSFRAMEWORKDIR=$IOSOUTPUTDIR/framework
OSXFRAMEWORKDIR=$OSXOUTPUTDIR/framework

BOOST_TARBALL=$TARBALLDIR/boost_$BOOST_VERSION2.tar.bz2
BOOST_SRC=$SRCDIR/boost_${BOOST_VERSION2}

ARM_DEV_CMD="xcrun --sdk iphoneos"
SIM_DEV_CMD="xcrun --sdk iphonesimulator"
OSX_DEV_CMD="xcrun --sdk macosx"

#===============================================================================
# Functions
#===============================================================================

usage()
{
cat << EOF
usage: $0 options
Build Boost for iOS, iOS Simulator, and OS X

OPTIONS:
    -h, -\? | --help
        Display these options and exit.

    --boost-version
        Specify which version of Boost to build. Defaults to $BOOST_VERSION.

    -ios
        Build for the iOS platform. May be used in conjunction with -osx.
        If neither -ios nor -osx are specified, both are built.

    -osx
        Build for the OS X platform. May be used in conjunction with -ios.
        If neither -ios nor -osx are specified, both are built.
    
    --ios-sdk [num]
        Specify the iOS SDK version to build with. Defaults to $IOS_SDK_VERSION.

    --min-ios-version [num]
        Specify the minimum iOS version to target.  Defaults to $MIN_IOS_VERSION.

    --osx-sdk [num]
        Specify the OS X SDK version to build with. Defaults to $OSX_SDK_VERSION.

    --no-framework
        Do not create the framework.

    --clean
        Just clean up build artifacts, but don't actually build anything.

    --no-clean
        Do not clean up existing build artifacts before building.

EOF
}

abort()
{
    echo
    echo "Aborted: $@"
    exit 1
}

die()
{
    usage
    exit 1
}

missingParameter()
{
    echo $1 requires a parameter
    die
}

unknownParameter()
{
    if [[ -n $2 &&  $2 != "" ]]; then
        echo Unknown argument \"$2\" for parameter $1.
    else
        echo Unknown argument $1
    fi
    die
}

parseArgs()
{
    while [ "$1" != "" ]; do
        case $1 in
            -h | -\?)
                usage
                exit
                ;;

            -ios)
                BUILD_IOS=1
                ;;

            -osx)
                BUILD_OSX=1
                ;;

            --boost-version)
                if [ -n $2 ]; then
                    BOOST_VERSION=$2
                    BOOST_VERSION2="${BOOST_VERSION//./_}"
                    BOOST_TARBALL=$TARBALLDIR/boost_$BOOST_VERSION2.tar.bz2
                    BOOST_SRC=$SRCDIR/boost_${BOOST_VERSION2}
                    shift
                else
                    missingParameter $1
                fi
                ;;

            --ios-sdk)
                if [ -n $2 ]; then
                    IOS_SDK_VERSION=$2
                    shift
                else
                    missingParameter $1
                fi
                ;;

            --min-ios-version)
                if [ -n $2 ]; then
                    MIN_IOS_VERSION=$2
                    shift
                else
                    missingParameter $1
                fi
                ;;

            --osx-sdk)
                 if [ -n $2 ]; then
                    OSX_SDK_VERSION=$2
                    shift
                else
                    missingParameter $1
                fi
                ;;

            --clean)
                CLEAN=1
                ;;

            --no-clean)
                NO_CLEAN=1
                ;;

            --no-framework)
                NO_FRAMEWORK=1
                ;;

            *)
                unknownParameter $1
                ;;
        esac

        shift
    done
}

doneSection()
{
    echo
    echo "Done"
    echo "================================================================="
    echo
}

#===============================================================================

cleanup()
{
    echo Cleaning everything

    rm -rf $BOOST_SRC/iphone-build
    rm -rf $BOOST_SRC/iphonesim-build 
    rm -rf $BOOST_SRC/osx-build
    rm -rf $IOSOUTPUTDIR
    rm -rf $OSXOUTPUTDIR

    doneSection
}

#===============================================================================

downloadBoost()
{
    if [ ! -s $BOOST_TARBALL ]; then
        echo "Downloading boost ${BOOST_VERSION}"
        curl -L -o $BOOST_TARBALL \
            http://sourceforge.net/projects/boost/files/boost/${BOOST_VERSION}/boost_${BOOST_VERSION2}.tar.bz2/download
    fi

    doneSection
}

#===============================================================================

unpackBoost()
{
    [ -f "$BOOST_TARBALL" ] || abort "Source tarball missing."

    echo Unpacking boost into $SRCDIR...

    [ -d $SRCDIR ]    || mkdir -p $SRCDIR
    [ -d $BOOST_SRC ] || ( cd $SRCDIR; tar xfj $BOOST_TARBALL )
    [ -d $BOOST_SRC ] && echo "    ...unpacked as $BOOST_SRC"

    doneSection
}

#===============================================================================

inventMissingHeaders()
{
    # These files are missing in the ARM iPhoneOS SDK, but they are in the simulator.
    # They are supported on the device, so we copy them from x86 SDK to a staging area
    # to use them on ARM, too.
    echo Invent missing headers

    cp $XCODE_ROOT/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator${IOS_SDK_VERSION}.sdk/usr/include/{crt_externs,bzlib}.h $BOOST_SRC
}

#===============================================================================

updateBoost()
{
    echo Updating boost into $BOOST_SRC...

    mv $BOOST_SRC/tools/build/src/user-config.jam $BOOST_SRC/tools/build/src/user-config.jam-bk

    if [[ -n $BUILD_IOS ]]; then
        cat >> $BOOST_SRC/tools/build/src/user-config.jam <<EOF
using darwin : ${IOS_SDK_VERSION}~iphone
: $XCODE_ROOT/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang++ -arch armv7 \
    -arch armv7s -arch arm64 $EXTRA_IOS_CPPFLAGS
: <striper> <root>$XCODE_ROOT/Platforms/iPhoneOS.platform/Developer
: <architecture>arm <target-os>iphone
;
using darwin : ${IOS_SDK_VERSION}~iphonesim
: g++ -arch i386 -arch x86_64 $EXTRA_IOS_CPPFLAGS
: <striper> <root>$XCODE_ROOT/Platforms/iPhoneSimulator.platform/Developer
: <architecture>x86 <target-os>iphone
;
EOF
    fi

    if [[ -n $BUILD_OSX ]]; then
        cat >> $BOOST_SRC/tools/build/src/user-config.jam <<EOF
using darwin : ${OSX_SDK_VERSION}
: g++ -arch i386 -arch x86_64 $EXTRA_OSX_CPPFLAGS
: <striper> <root>$XCODE_ROOT/Platforms/MacOSX.platform/Developer
: <architecture>x86 <target-os>darwin
;
EOF
    fi

    doneSection
}

#===============================================================================

bootstrapBoost()
{
    cd $BOOST_SRC

    BOOST_LIBS_COMMA=$(echo $BOOST_LIBS | sed -e "s/ /,/g")
    echo "Bootstrapping (with libs $BOOST_LIBS_COMMA)"
    ./bootstrap.sh --with-libraries=$BOOST_LIBS_COMMA

    doneSection
}

#===============================================================================

buildBoost()
{
    cd $BOOST_SRC

    if [[ -n $BUILD_IOS ]]; then
        echo Building Boost for iPhone
        # Install this one so we can copy the headers for the frameworks...
        ./b2 -j16 --build-dir=iphone-build --stagedir=iphone-build/stage \
            --prefix=$PREFIXDIR toolset=darwin architecture=arm target-os=iphone \
            macosx-version=iphone-${IOS_SDK_VERSION} define=_LITTLE_ENDIAN \
            link=static stage
        ./b2 -j16 --build-dir=iphone-build --stagedir=iphone-build/stage \
            --prefix=$PREFIXDIR toolset=darwin architecture=arm \
            target-os=iphone macosx-version=iphone-${IOS_SDK_VERSION} \
            define=_LITTLE_ENDIAN link=static install
        doneSection

        echo Building Boost for iPhoneSimulator
        ./b2 -j16 --build-dir=iphonesim-build --stagedir=iphonesim-build/stage \
            toolset=darwin-${IOS_SDK_VERSION}~iphonesim architecture=x86 \
            target-os=iphone macosx-version=iphonesim-${IOS_SDK_VERSION} \
            link=static stage
        doneSection
    fi

    if [[ -n $BUILD_OSX ]]; then
        echo building Boost for OSX
        ./b2 -j16 --build-dir=osx-build --stagedir=osx-build/stage toolset=clang \
            cxxflags="-std=c++11 -stdlib=libc++ -arch i386 -arch x86_64" \
            linkflags="-stdlib=libc++" link=static threading=multi \
            macosx-version=${OSX_SDK_VERSION} stage

        # If we are only building for OS X and we are outputting a framework,
        # then we need to install this one so we can copy the headers
        if [[ -z $BUILD_IOS && -z $NO_FRAMEWORK ]]; then
            PREFIXDIR=$OSXBUILDDIR/prefix
            ./b2 -j16 --build-dir=osx-build --stagedir=osx-build/stage \
                --prefix=$PREFIXDIR toolset=clang \
                cxxflags="-std=c++11 -stdlib=libc++ -arch i386 -arch x86_64" \
                linkflags="-stdlib=libc++" link=static threading=multi \
                macosx-version=${OSX_SDK_VERSION} install
        fi

        doneSection
    fi
}

#===============================================================================

unpackArchive()
{
    BUILDDIR=$1
    LIBNAME=$2

    echo "Unpacking $LIBNAME"

    if [[ -d $BUILDDIR/$LIBNAME ]]; then 
        rm $BUILDDIR/$LIBNAME/*.o
        rm $BUILDDIR/$LIBNAME/*.SYMDEF*
    else
        mkdir -p $BUILDDIR/$LIBNAME
    fi

    (
        cd $BUILDDIR/$NAME; ar -x ../../libboost_$NAME.a;
        for FILE in *.o; do
            NEW_FILE="${NAME}_${FILE}"
            mv $FILE $NEW_FILE
        done
    )
}

scrunchAllLibsTogetherInOneLibPerPlatform()
{
    cd $BOOST_SRC

    if [[ -n $BUILD_IOS ]]; then
        # iOS Device
        mkdir -p $IOSBUILDDIR/armv7/obj
        mkdir -p $IOSBUILDDIR/armv7s/obj
        mkdir -p $IOSBUILDDIR/arm64/obj

        # iOS Simulator
        mkdir -p $IOSBUILDDIR/i386/obj
        mkdir -p $IOSBUILDDIR/x86_64/obj
    fi

    if [[ -n $BUILD_OSX ]]; then
        # OSX
        mkdir -p $OSXBUILDDIR/i386/obj
        mkdir -p $OSXBUILDDIR/x86_64/obj
    fi

    ALL_LIBS=""

    echo Splitting all existing fat binaries...

    for NAME in $BOOST_LIBS; do
        if [ "$NAME" == "test" ]; then
            NAME="unit_test_framework"
        fi

        ALL_LIBS="$ALL_LIBS libboost_$NAME.a"

        if [[ -n $BUILD_IOS ]]; then
            $ARM_DEV_CMD lipo "iphone-build/stage/lib/libboost_$NAME.a" \
                -thin armv7 -o $IOSBUILDDIR/armv7/libboost_$NAME.a
            $ARM_DEV_CMD lipo "iphone-build/stage/lib/libboost_$NAME.a" \
                -thin armv7s -o $IOSBUILDDIR/armv7s/libboost_$NAME.a
            $ARM_DEV_CMD lipo "iphone-build/stage/lib/libboost_$NAME.a" \
                -thin arm64 -o $IOSBUILDDIR/arm64/libboost_$NAME.a

            $SIM_DEV_CMD lipo "iphonesim-build/stage/lib/libboost_$NAME.a" \
                -thin i386 -o $IOSBUILDDIR/i386/libboost_$NAME.a
            $SIM_DEV_CMD lipo "iphonesim-build/stage/lib/libboost_$NAME.a" \
                -thin x86_64 -o $IOSBUILDDIR/x86_64/libboost_$NAME.a
        fi

        if [[ -n $BUILD_OSX ]]; then
            $OSX_DEV_CMD lipo "osx-build/stage/lib/libboost_$NAME.a" \
                -thin i386 -o $OSXBUILDDIR/i386/libboost_$NAME.a
            $OSX_DEV_CMD lipo "osx-build/stage/lib/libboost_$NAME.a" \
                -thin x86_64 -o $OSXBUILDDIR/x86_64/libboost_$NAME.a
        fi
    done

    echo "Decomposing each architecture's .a files"

    for NAME in $BOOST_LIBS; do
        if [ "$NAME" == "test" ]; then
            NAME="unit_test_framework"
        fi

        echo "Decomposing libboost_${NAME}.a"
        if [[ -n $BUILD_IOS ]]; then
            unpackArchive "$IOSBUILDDIR/armv7/obj" $NAME
            unpackArchive "$IOSBUILDDIR/armv7s/obj" $NAME
            unpackArchive "$IOSBUILDDIR/arm64/obj" $NAME

            unpackArchive "$IOSBUILDDIR/i386/obj" $NAME
            unpackArchive "$IOSBUILDDIR/x86_64/obj" $NAME
        fi

        if [[ -n $BUILD_OSX ]]; then
            unpackArchive "$OSXBUILDDIR/i386/obj" $NAME
            unpackArchive "$OSXBUILDDIR/x86_64/obj" $NAME
        fi
    done

    echo "Linking each architecture into an uberlib ($ALL_LIBS => libboost.a )"
    if [[ -n $BUILD_IOS ]]; then
        rm $IOSBUILDDIR/*/libboost.a
    fi
    if [[ -n $BUILD_OSX ]]; then
        rm $OSXBUILDDIR/*/libboost.a
    fi

    for NAME in $BOOST_LIBS; do
        if [ "$NAME" == "test" ]; then
            NAME="unit_test_framework"
        fi

        echo $NAME

        if [[ -n $BUILD_IOS ]]; then
            echo ...armv7
            (cd $IOSBUILDDIR/armv7; $ARM_DEV_CMD ar crus libboost.a obj/$NAME/*.o; )
            echo ...armv7s
            (cd $IOSBUILDDIR/armv7s; $ARM_DEV_CMD ar crus libboost.a obj/$NAME/*.o; )
            echo ...arm64
            (cd $IOSBUILDDIR/arm64; $ARM_DEV_CMD ar crus libboost.a obj/$NAME/*.o; )

            echo ...i386
            (cd $IOSBUILDDIR/i386;  $SIM_DEV_CMD ar crus libboost.a obj/$NAME/*.o; )
            echo ...x86_64
            (cd $IOSBUILDDIR/x86_64;  $SIM_DEV_CMD ar crus libboost.a obj/$NAME/*.o; )
        fi

        if [[ -n $BUILD_OSX ]]; then
            echo ...osx-i386
            (cd $OSXBUILDDIR/i386;  $OSX_DEV_CMD ar crus libboost.a obj/$NAME/*.o; )
            echo ...osx-x86_64
            (cd $OSXBUILDDIR/x86_64;  $OSX_DEV_CMD ar crus libboost.a obj/$NAME/*.o; )
        fi
    done
}

#===============================================================================
buildFramework()
{
    : ${1:?}
    FRAMEWORKDIR=$1
    BUILDDIR=$2

    VERSION_TYPE=Alpha
    FRAMEWORK_NAME=boost
    FRAMEWORK_VERSION=A

    FRAMEWORK_CURRENT_VERSION=$BOOST_VERSION
    FRAMEWORK_COMPATIBILITY_VERSION=$BOOST_VERSION

    FRAMEWORK_BUNDLE=$FRAMEWORKDIR/$FRAMEWORK_NAME.framework
    echo "Framework: Building $FRAMEWORK_BUNDLE from $BUILDDIR..."

    rm -rf $FRAMEWORK_BUNDLE

    echo "Framework: Setting up directories..."
    mkdir -p $FRAMEWORK_BUNDLE
    mkdir -p $FRAMEWORK_BUNDLE/Versions
    mkdir -p $FRAMEWORK_BUNDLE/Versions/$FRAMEWORK_VERSION
    mkdir -p $FRAMEWORK_BUNDLE/Versions/$FRAMEWORK_VERSION/Resources
    mkdir -p $FRAMEWORK_BUNDLE/Versions/$FRAMEWORK_VERSION/Headers
    mkdir -p $FRAMEWORK_BUNDLE/Versions/$FRAMEWORK_VERSION/Documentation

    echo "Framework: Creating symlinks..."
    ln -s $FRAMEWORK_VERSION               $FRAMEWORK_BUNDLE/Versions/Current
    ln -s Versions/Current/Headers         $FRAMEWORK_BUNDLE/Headers
    ln -s Versions/Current/Resources       $FRAMEWORK_BUNDLE/Resources
    ln -s Versions/Current/Documentation   $FRAMEWORK_BUNDLE/Documentation
    ln -s Versions/Current/$FRAMEWORK_NAME $FRAMEWORK_BUNDLE/$FRAMEWORK_NAME

    FRAMEWORK_INSTALL_NAME=$FRAMEWORK_BUNDLE/Versions/$FRAMEWORK_VERSION/$FRAMEWORK_NAME

    echo "Lipoing library into $FRAMEWORK_INSTALL_NAME..."
    $ARM_DEV_CMD lipo -create $BUILDDIR/*/libboost.a -o "$FRAMEWORK_INSTALL_NAME" || abort "Lipo $1 failed"

    echo "Framework: Copying includes..."
    cp -r $PREFIXDIR/include/boost/*  $FRAMEWORK_BUNDLE/Headers/

    echo "Framework: Creating plist..."
    cat > $FRAMEWORK_BUNDLE/Resources/Info.plist <<EOF
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>CFBundleDevelopmentRegion</key>
<string>English</string>
<key>CFBundleExecutable</key>
<string>${FRAMEWORK_NAME}</string>
<key>CFBundleIdentifier</key>
<string>org.boost</string>
<key>CFBundleInfoDictionaryVersion</key>
<string>6.0</string>
<key>CFBundlePackageType</key>
<string>FMWK</string>
<key>CFBundleSignature</key>
<string>????</string>
<key>CFBundleVersion</key>
<string>${FRAMEWORK_CURRENT_VERSION}</string>
</dict>
</plist>
EOF

    doneSection
}

#===============================================================================

restoreBoost()
{
    cp $BOOST_SRC/tools/build/src/user-config.jam-bk $BOOST_SRC/tools/build/src/user-config.jam
}

#===============================================================================
# Execution starts here
#===============================================================================

parseArgs $@

if [ -n "$CLEAN" ]; then
    cleanup
    exit
fi

if [[ -z $BUILD_IOS && -z $BUILD_OSX ]]; then
    BUILD_IOS=1
    BUILD_OSX=1
fi

format="%-20s %s\n"
printf "$format" "BUILD_IOS:" $( [[ -n $BUILD_IOS ]] && echo "YES" || echo "NO")
printf "$format" "BUILD_OSX:" $( [[ -n $BUILD_OSX ]] && echo "YES" || echo "NO")
printf "$format" "BOOST_VERSION:" $BOOST_VERSION
printf "$format" "IOS_SDK_VERSION:" $IOS_SDK_VERSION
printf "$format" "OSX_SDK_VERSION:" $OSX_SDK_VERSION
printf "$format" "MIN_IOS_VERSION:" $MIN_IOS_VERSION
printf "$format" "BOOST_LIBS:" "$BOOST_LIBS"
printf "$format" "BOOST_SRC:" $BOOST_SRC
printf "$format" "IOSBUILDDIR:" $IOSBUILDDIR
printf "$format" "OSXBUILDDIR:" $OSXBUILDDIR
printf "$format" "PREFIXDIR:" $PREFIXDIR
printf "$format" "IOSFRAMEWORKDIR:" $IOSFRAMEWORKDIR
printf "$format" "OSXFRAMEWORKDIR:" $OSXFRAMEWORKDIR
printf "$format" "XCODE_ROOT:" $XCODE_ROOT
echo

if [ -z $NO_CLEAN ]; then
    cleanup
fi

downloadBoost
unpackBoost
inventMissingHeaders
bootstrapBoost
updateBoost
buildBoost
scrunchAllLibsTogetherInOneLibPerPlatform

if [ -z $NO_FRAMEWORK ]; then
    if [[ -n $BUILD_IOS ]]; then
        buildFramework $IOSFRAMEWORKDIR $IOSBUILDDIR
    fi
    if [[ -n $BUILD_OSX ]]; then
        buildFramework $OSXFRAMEWORKDIR $OSXBUILDDIR
    fi
fi

restoreBoost

echo "Completed successfully"

BUILD_IOS:           YES
BUILD_OSX:           YES
BOOST_VERSION:       1.60.0
IOS_SDK_VERSION:     8.4
OSX_SDK_VERSION:     10.10
MIN_IOS_VERSION:     8.0
BOOST_LIBS:          atomic chrono date_time exception filesystem program_options random signals system test thread
BOOST_SRC:           /Users/mgdev2/Desktop/Boost/src/boost_1_60_0
IOSBUILDDIR:         /Users/mgdev2/Desktop/Boost/ios/build
OSXBUILDDIR:         /Users/mgdev2/Desktop/Boost/osx/build
PREFIXDIR:           /Users/mgdev2/Desktop/Boost/ios/prefix
IOSFRAMEWORKDIR:     /Users/mgdev2/Desktop/Boost/ios/framework
OSXFRAMEWORKDIR:     /Users/mgdev2/Desktop/Boost/osx/framework
XCODE_ROOT:          /Applications/Xcode.app/Contents/Developer

I used this script to compile iOS & OSX framework. Everything compiled fine. OS X version works fine, but iOS version crashes in simulator, specially if I use a separate thread for async tcp client.

boost::thread bt(boost::bind(&boost::asio::io_service::run, &io_service)); cause it to crash in
boost::asio::async_read_until(socket_, input_buffer_, '\n', boost::bind(&TCPSocketClient::handle_read, this, _1));. However if I don't use thread and instead call io_service.run() to keep it in main thread itself, it works fine without any crash.

I tried searching for crash and somewhere read that it could be due to wrong compiler argument or different compilers. Any help?

I use async_read_until in my own project and I do not have this issue. If it is a bad compiler argument, I don't know what it would be. The settings in this script are exactly the ones I use to build boost for myself. I'd need a lot more information to help troubleshoot this. Sorry.

Seems like I can't build with the option BOOST_LIBS="asio system". I get this message, among others;

error: wrong library name 'asio' in the --with- option.

In response to EspenNaess, BOOST_LIBS can't reference header only "libraries", since there isn't a library to create for those. So BOOST_LIBS="asio system" can't figure out what to create for asio, because there is no asio library to create.

I'm also trying to compile "locale" for iOS (but with iconv) and the problem seems to be that all of the "detection" modes do not work. If one adds locale to the list of libraries that shall be compiled, runs it and then checks iphone-build/boost/bin.v2/config.log one find's that boost tries to compile has_iconv.cpp (and some other test programs) and fails to compile it NOT because iconv isn't available but BECAUSE something removes the compiler path & name and it tries to execute "-ftemplate-depth-128 ..." (so only the parameters). My guess is it has to do with adding the entries into the user-config.jam but I have spent a couple of hours and couldn't really figure out the syntax... anyone got an idea?

This detection-compilation-problem exists in all other (older) variants of this script that I found...

ATTENTION:
I have moved this script to an actual github repository. This will allow you all to create issues, make requests,
etc., without me having to remember to check this gist. It also means I will get emails when issues / questions are created.
It will also make it easier (hopefully) to track versioning.

The latest version there has been updated to build for tvOS (along with some other changes).

The new repository is located here:
https://github.com/faithfracture/Apple-Boost-BuildScript

thanks a lot!

Just to help and save other developers time

I've made a repository which contains Boost and OpenSSL built and ready for iOS and macOS architectures.

Includes thread-safe libraries aswell!