title: MD5SUM in a Makefile
body: <p>I'm trying to generate a MD5 checksum of a file in a Makefile. In my Makefile i have something like;</p>
  
  <p>CHECKSUM=md5sum $(myfile)</p>
  
  <p>But the variable CHECKSUM is always empty</p>
  
  <p>Can anybody tell me what's wrong here?</p>