title: gcc is unable to create an executable file when installing FFmpeg
body: <p>I'm trying to install FFmpeg directly from the source and I keep getting this error:</p>
  
  <pre><code>gcc is unable to create an executable file.
  If gcc is a cross-compiler, use the --enable-cross-compile option.
  Only do this if you know what cross compiling means.
  C compiler test failed.
  
  If you think configure made a mistake, make sure you are using the latest
  version from Git.  If the latest version fails, report the problem to the
  ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
  Include the log file "config.log" produced by configure as this will help
  solving the problem.
  </code></pre>
  
  <p>Can anyone help? Also, yum install ffmpeg doesn't work.</p>