位码和dylib

我正在尝试编译一个C库,以便在我的iOS项目中使用它,我想嵌入位代码。

我可以成功构建针对每个拱门的静态库。这些静态库确实包含位代码(使用otool检查),但动态库不包含位代码。为什么? dylib中不支持位代码吗?

我试图构建的库是xz。这是脚本

build_iOS()
{
    ARCH=$1

    if [ $ARCH == "i386" ] || [ $ARCH == "x86_64" ];
    then
        SDKROOT="$(xcodebuild -version -sdk iphonesimulator | grep -E '^Path' | sed 's/Path: //')"
    else
        SDKROOT="$(xcodebuild -version -sdk iphoneos | grep -E '^Path' | sed 's/Path: //')"
    fi

    export CC="$(xcrun -sdk iphoneos -find clang)"
    export CFLAGS="-fembed-bitcode -isysroot $SDKROOT -arch ${ARCH} -miphoneos-version-min=9.0"
    export LDFLAGS="-arch ${ARCH} -isysroot $SDKROOT"

    if [ $ARCH == "i386" ] || [ $ARCH == "x86_64" ];
    then
        ./configure --prefix=$XZPATH/build/iOS/$ARCH --host=i686-apple-darwin11 --disable-static --enable-shared
    else
        ./configure --prefix=$XZPATH/build/iOS/$ARCH --host=arm-apple-darwin --disable-static --enable-shared
    fi

    make && make install && make clean
}
build_iOS i386
build_iOS x86_64
build_iOS armv7
build_iOS armv7s
build_iOS arm64

谢谢