ffmpeg compiled enable-asm

My compiler environment mac10.6.8 xcode4.2 ios5.0
ffmpeg real machine compile time, the instruction disable-asm, you can compile, but disable-asm
After disabling the compilation, ffmpeg decoding efficiency will drop.
I want to enable-asm, but this compiler is not passed ....
Seek expert help ... thank you!
Reply:

Disabling is required.
RGB conversion efficiency is not the case, you know.
You can look at this example.
https://github.com/kolyvan/kxmovie/

Reply:
. / Configure - disable-doc - disable-ffmpeg - disable-ffplay - disable-ffserver - disable-avfilter - disable-debug - enable-cross-compile - disable-armv5te - disable-everything - enable-decoder = h264 - enable-decoder = aac - enable-encoder = aac - cc = / Applications / Xcode.app / Contents / Developer / Platforms / iPhoneOS.platform / Developer / usr / bin / gcc - -as = 'gas-preprocessor/gas-preprocessor.pl / Applications / Xcode.app / Contents / Developer / Platforms / iPhoneOS.platform / Developer / usr / bin / gcc' - extra-ldflags = '-arch armv7-isysroot / Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS6.1.sdk '- sysroot = / Applications / Xcode.app / Contents / Developer / Platforms / iPhoneOS.platform / Developer / SDKs/iPhoneOS6.1.sdk - target-os = darwin - arch = arm - cpu = cortex-a8 - extra-cflags = '-arch armv7' - enable-asm

Am I good character, compiled. The last sentence - enable-asm
Reply:
. / Configure - disable-doc - disable-ffmpeg. . . . . .

What you get stuff look after compilation. . . . . .