setenv.sh

# Set build environment variables for iOS development.
#
# This script should be sourced:
#
# . setenv.sh arch [sdk-version]
#
# Where 'arch' is one of armv6, armv7 or i386 (simulator)
#
# The environment variable $VALIDENV will be 0 is the environment is
# invalid, or 1 if valid.

export VALIDENV=0
if [ $# -gt 0 ]; then
    SDKVER=5.0

    if [ $# -eq 1 ]; then
        ARCH=$1
    elif [ $# -eq 2 ]; then
        ARCH=$1
        SDKVER=$2
    fi

    case $ARCH in
    armv6)
        PLATFORM=iPhoneOS
        ;;
    armv7)
        PLATFORM=iPhoneOS
        ;;
    i386)
        PLATFORM=iPhoneSimulator
        ;;
    esac
    export ARCH PLATFORM SDKVER

    # Developer and SDK root directories
    export DEVROOT=/Developer/Platforms/${PLATFORM}.platform/Developer
    export SDKROOT=$DEVROOT/SDKs/${PLATFORM}${SDKVER}.sdk
    export TOOLROOT=$DEVROOT/usr/bin

    # Full path to tools
    export CC=$TOOLROOT/clang
    export CXX=$TOOLROOT/clang++
    export LD=$TOOLROOT/ld
    export AR=$TOOLROOT/ar
    export RANLIB=$TOOLROOT/ranlib
    export NM=$TOOLROOT/nm
    export STRIP=$TOOLROOT/strip

    # Some fundamental compiler/linker flags
    export CFLAGS="-arch $ARCH -isysroot $SDKROOT"
    export CXXFLAGS="$CFLAGS"
    export LDFLAGS="$CFLAGS -Wl,-syslibroot $SDKROOT"

    # Where local libraries are installed
    export LOCAL_IOS_LIBS=/opt/local/ioslibs

    # Check if the environment is valid
    [   -d $DEVROOT -a \
        -d $SDKROOT -a \
        -d $TOOLROOT -a \
        -d $LOCAL_IOS_LIBS -a \
        -x $CC -a \
        -x $CXX -a \
        -x $LD -a \
        -x $AR ] && VALIDENV=1
fi

if [ $VALIDENV = 0 ]; then
    echo Invalid environment!
fi