title: need to store echo output into variable and followed by string comparison in .mk file
body: <p>Working on some implementaion in .mk file.</p>
  
  <p>My Requirement is to assign echo output (string) to variable(eg. temp).</p>
  
  <p>followed by string comparison need to do.</p>
  
  <p>My case is working in .mk file(for printing on console)</p>
  
  <p>echo "$$($$(VEN)_NAME) $$($$(VEN)_VERSION)" >>>>>HELLOWORLD_x-y-z
  TEMP_VAR="HELLOWORLD_x-y-z"
  echo "**********$$<strong>TEMP_VAR*</strong>" ---->giving ********HELLOWORLD_x-y-z*** on console.</p>
  
  <p>but i tried below things to store into temp variable,its not at all working.</p>
  
  <p>$$temp=<code>(echo "$$($$(VEN)_NAME) $$($$(VEN)_VERSION)")</code>\
  temp=<code>(echo "$$($$(VEN)_NAME) $$($$(VEN)_VERSION)")</code>\
  $$temp=`(echo "$$($$(VEN)_NAME) $$($$(VEN)_VERSION)");\
  temp = $$($$(VEN)_NAME) $$($$(VEN)_VERSION)\</p>
  
  <p>for string comparision.
  have to do these two variable TEMP_VAR ,temp
  i'm new to .mk file,kindly guide me to do this.</p>
  
  <p>Thanks,
  ngmns.</p>