./ configure --prefix = armv7s --disable- ffmpeg --disable-ffplay --disable-ff probe --disable-ffserver --enable-avresample --enable-cross-compile --sysroot =/ Applications / XCode.app / Contents / Developer / Platforms / iPhoneOS.platform / Developer / SDKs / iPhoneOS7.0.sdk --target-os = darwin --cc =/ Applications / XCode.app / Contents / Developer / Toolchains / XcodeDefault.xctoolchain / usr / bin / clang--extra-cflags = -  arch armv7s -mfpu = neon  - miphoneos-version-min = 7.0--extra-ldflags = -  arch armv7s -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS7.0.sdk -miphoneos-version -min = 7.0--arch = arm --cpu = cortex-a9 --enable-pic 
 

编辑：
下载我的脚本并运行：
在10.8安装ffmpeg ios库armv7，armv7s，i386和通用版本

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

./configure --prefix=armv7s --disable-ffmpeg --disable-ffplay --disable-ffprobe --disable-ffserver --enable-avresample --enable-cross-compile --sysroot="/Applications/XCode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS7.0.sdk" --target-os=darwin --cc="/Applications/XCode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang" --extra-cflags="-arch armv7s -mfpu=neon -miphoneos-version-min=7.0" --extra-ldflags="-arch armv7s -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS7.0.sdk -miphoneos-version-min=7.0" --arch=arm --cpu=cortex-a9 --enable-pic

EDIT: Download my script and run from: Installing ffmpeg ios libraries armv7, armv7s, i386 and universal on Mac with 10.8