#!/bin/sh

#

# Build Universal binaries on Mac OS X, thanks Ryan!

#

# Usage: ./configure CC="sh gcc-fat.sh" && make && rm -rf ppc x86

# Locate Xcode SDK path

SDK_PATH=/Developer/SDKs

if [ ! -d $SDK_PATH ]; then

    echo "Couldn't find SDK path"

    exit 1

fi

if [ -d "$SDK_PATH/MacOSX10.2.8.sdk" ]; then

    # PowerPC compiler flags (10.2 runtime compatibility)

    GCC_COMPILE_PPC="gcc-3.3 -arch ppc \

-DMAC_OS_X_VERSION_MIN_REQUIRED=1020 \

-nostdinc \

-F$SDK_PATH/MacOSX10.2.8.sdk/System/Library/Frameworks \

-I$SDK_PATH/MacOSX10.2.8.sdk/usr/include/gcc/darwin/3.3 \

-isystem $SDK_PATH/MacOSX10.2.8.sdk/usr/include"

    GCC_LINK_PPC="\

-L$SDK_PATH/MacOSX10.2.8.sdk/usr/lib/gcc/darwin/3.3 \

-F$SDK_PATH/MacOSX10.2.8.sdk/System/Library/Frameworks \

-Wl,-syslibroot,$SDK_PATH/MacOSX10.2.8.sdk"

else # 10.2 or 10.3 SDK

    # PowerPC compiler flags (10.3 runtime compatibility)

    GCC_COMPILE_PPC="gcc-4.0 -arch ppc -mmacosx-version-min=10.3 \

-DMAC_OS_X_VERSION_MIN_REQUIRED=1030 \

-nostdinc \

-F$SDK_PATH/MacOSX10.3.9.sdk/System/Library/Frameworks \

-I$SDK_PATH/MacOSX10.3.9.sdk/usr/lib/gcc/powerpc-apple-darwin9/4.0.1/include \

-isystem $SDK_PATH/MacOSX10.3.9.sdk/usr/include"

    GCC_LINK_PPC="\

-L$SDK_PATH/MacOSX10.3.9.sdk/usr/lib/gcc/powerpc-apple-darwin9/4.0.1 \

-F$SDK_PATH/MacOSX10.3.9.sdk/System/Library/Frameworks \

-Wl,-syslibroot,$SDK_PATH/MacOSX10.3.9.sdk"

fi # 10.2 or 10.3 SDK

# Intel compiler flags (10.4 runtime compatibility)

GCC_COMPILE_X86="gcc-4.0 -arch i386 -mmacosx-version-min=10.4 \

-DMAC_OS_X_VERSION_MIN_REQUIRED=1040 \

-nostdinc \

-F$SDK_PATH/MacOSX10.4u.sdk/System/Library/Frameworks \

-I$SDK_PATH/MacOSX10.4u.sdk/usr/lib/gcc/i686-apple-darwin9/4.0.1/include \

-isystem $SDK_PATH/MacOSX10.4u.sdk/usr/include"

GCC_LINK_X86="\

-L$SDK_PATH/MacOSX10.4u.sdk/usr/lib/gcc/i686-apple-darwin9/4.0.1 \

-Wl,-syslibroot,$SDK_PATH/MacOSX10.4u.sdk"

# Output both PowerPC and Intel object files

args="$*"

compile=yes

link=yes

while test x$1 != x; do

    case $1 in

        --version) exec gcc $1;;

        -v) exec gcc $1;;

        -V) exec gcc $1;;

        -print-prog-name=*) exec gcc $1;;

        -print-search-dirs) exec gcc $1;;

        -E) GCC_COMPILE_PPC="$GCC_COMPILE_PPC -E"

            GCC_COMPILE_X86="$GCC_COMPILE_X86 -E"

            compile=no; link=no;;

        -c) link=no;;

        -o) output=$2;;

        *.c|*.cc|*.cpp|*.S) source=$1;;

    esac

    shift

done

if test x$link = xyes; then

    GCC_COMPILE_PPC="$GCC_COMPILE_PPC $GCC_LINK_PPC"

    GCC_COMPILE_X86="$GCC_COMPILE_X86 $GCC_LINK_X86"

fi

if test x"$output" = x; then

    if test x$link = xyes; then

        output=a.out

    elif test x$compile = xyes; then

        output=`echo $source | sed -e 's|.*/||' -e 's|\(.*\)\.[^\.]*|\1|'`.o

    fi

fi

if test x"$output" != x; then

    dir=ppc/`dirname $output`

    if test -d $dir; then

        :

    else

        mkdir -p $dir

    fi

fi

set -- $args

while test x$1 != x; do

    if test -f "ppc/$1" && test "$1" != "$output"; then

        ppc_args="$ppc_args ppc/$1"

    else

        ppc_args="$ppc_args $1"

    fi

    shift

done

$GCC_COMPILE_PPC $ppc_args || exit $?

if test x"$output" != x; then

    cp $output ppc/$output

fi

if test x"$output" != x; then

    dir=x86/`dirname $output`

    if test -d $dir; then

        :

    else

        mkdir -p $dir

    fi

fi

set -- $args

while test x$1 != x; do

    if test -f "x86/$1" && test "$1" != "$output"; then

        x86_args="$x86_args x86/$1"

    else

        x86_args="$x86_args $1"

    fi

    shift

done

$GCC_COMPILE_X86 $x86_args || exit $?

if test x"$output" != x; then

    cp $output x86/$output

fi

if test x"$output" != x; then

    lipo -create -o $output ppc/$output x86/$output

fi