Build FFmpeg with xCode 5

Build FFmpeg with xCode 5

Does anyone know how to compile FFmpeg with xCode 5?
My configure part:
./configure --disable-doc --disable-ffmpeg --disable-ffplay
--disable-ffserver --enable cross-compile --arch=arm --target-os=darwin
--enable-neon --disable-avfilter \ --disable-bsfs \ --enable-avresample
--enable-swresample --disable-iconv --enable-gpl \ --disable-demuxers
--enable-demuxer=rtsp --enable-demuxer=rtp --enable-demuxer=mpegts \
--disable-decoders --enable-decoder=mp2 --enable-decoder=mp3
--enable-decoder=mpeg2video --enable-decoder=ac3 - enable-decoder=dvbsub
--enable-decoder=h264 \ --disable-parsers --enable-parser=mpegvideo -
enable-parser=mpeg4video --enable-parser=mpegaudio --enable-parser=dvbsub\
--disable-muxers --disable-encoders --disable-filters \
--disable-protocols --enable-protocol=http --enable-protocol=rtp
--enable-protocol=udp --enable-protocol=tcp \ --disable-swscale-alpha \
--disable-armv5te \ --disable-armv6 \ --disable-armv6t2 \
--cc=/Applications/Xcode.app/Contents/Developer/usr/bin
--as='/usr/local/bin/gas preprocessor/gas-preprocessor.pl
/Applications/Xcode.app/Contents/Developer/usr/bin'
--sysroot=/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS7.0.sdk
--cpu=cortex-a8 --extra-cflags='-arch armv7 -mfpu=neon -mfloat-abi=softfp'
--extra-ldflags='-arch armv7 -mfpu=neon -mfloat-abi=softfp -isysroot
/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS7.0.sdk'
--enable-pic --disable-bzlib
It works with xCode 4 (different Compiler-Path)
Error-Message:
./configure: line 3763: nm: command not found