title: Using ifeq with multiple options
body: <p>I want check for a condition in makefile using ifeq,  &amp; not sure how to go about: </p>
  
  <pre><code>ifeq ( cond1 = yes || cond2 = yes )   
    set value x = 1;   
  else  
    set value x = 2;  
  endif 
  </code></pre>
  
  <p>Please suggest the proper way to do it? </p>