title: apple clang and sse instructions form armv7 ( mobile processors )
body: <p>I have problems cross compiling some c++ sources that contain sse instruction.
  I manage to compile them for simulator (with no extra c++ flag), but for armv7 i get the following error:</p>
  
  <pre><code>#error "SSE instruction set not enabled"
  ( and following other errors such as:
  ... unknown type name '__m128'
  )
  </code></pre>
  
  <p>I have looked into clang flags for a flag to activate sse instructions, but did not find</p>
  
  <p>( the source file that i'm trying to compile is gdalgrid.cpp in project gdal,
  <a href="http://fossies.org/dox/gdal-1.10.1/gdalgrid_8cpp_source.html" rel="nofollow">http://fossies.org/dox/gdal-1.10.1/gdalgrid_8cpp_source.html</a>
  )</p>
  
  <p>thx in advance</p>