title: iFrameExtractor fails to build library for armv7 using XCode 4.3.3 & iOS 5.1
body: <p>I have downloaded code to build with XCode 4.3.3 for iOS 5.1 from this link - <a href="https://github.com/lajos/iFrameExtractor" rel="nofollow noreferrer">https://github.com/lajos/iFrameExtractor</a>
  I am successfully able to build the libraries for FFmpeg using build_universal script. But it always builds the libraries for X86_64 architecture. Checked with lipo -info command.</p>
  
  <p>Also tried the build script from the link - <a href="http://stexgroup.com/blog/ffmpeg-for-iphone-ios-xcode4.3-build-script" rel="nofollow noreferrer">http://stexgroup.com/blog/ffmpeg-for-iphone-ios-xcode4.3-build-script</a>. It also builds libraries for X86_64 architecture.</p>
  
  <p>I changed the scripts as per this post - <a href="https://stackoverflow.com/questions/6994151/problem-compiling-ffmpeg-for-iframeextractor">problem compiling ffmpeg for iFrameExtractor</a></p>
  
  <p>But nothing is working for me. </p>
  
  <p>The build script for armv7 [iFrameExtractor] is as following</p>
  
  <pre><code>./configure \
  --disable-bzlib --disable-doc \
  --disable-ffmpeg --disable-ffplay \
  --disable-ffserver --disable-mmx \
  --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' \
  --enable-cross-compile --target-os=darwin \
  --arch=arm --cpu=cortex-a8 --enable-pic \
  --sysroot=/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS5.1.sdk \
  --extra-ldflags="-arch armv7 -    L//Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS5.1.sdk/usr/lib" \
  --extra-cflags="-arch armv7"
  </code></pre>
  
  <p>Can anybody guide me what can be the issue, considering the same thing is working for everyone else?</p>