title: How to give options for "configure" using yocto recipes?
body: <p>I want write a recipe in yocto to build my custom component. In that i would like to enable some flags according to machine.</p>
  
  <p>eg:</p>
  
  <p>if machine is x86</p>
  
  <p>my configure command should be like : </p>
  
  <pre><code>./configure --enable-x86
  </code></pre>
  
  <p>if it is x64</p>
  
  <pre><code>./configure --enable-x64
  </code></pre>
  
  <p>i am using auto tools for building. please help me in writing recipe as well as "configure.ac" for achieving this.</p>
  
  <p>ps: I am very new to yocto.</p>