Unrecognized input filetype FFMPEG gas-preprocessor.pl

Question

Hi,

I try to use FFMPEG in the iPhone, I follow by this link

http://lists.mplayerhq.hu/pipermail/ffmpeg-devel/2009-October/076618.html

When I running the

./configure --cc=/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/arm-apple-darwin9-gcc-4.2.1 --as='gas-preprocessor.pl /Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/arm-apple-darwin9-gcc-4.2.1' --sysroot=/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS3.1.sdk --enable-cross-compile --target-os=darwin --arch=arm --cpu=arm1176jzf-s

script I getting the error: “Unrecognized input filetype at /bin/sh line 23″

Pls help me.

Thanks, Eyal.