title: Binary for each CFLAGS alternative
body: <p>I need seven binaries maked from the same set of source codes and headers. All of the codes must be compiled with the same <code>CFLAGS</code>. In my problem, there are 7 alternatives for <code>CFLAGS</code>:</p>
  
  <ol>
  <li><p><code>CFLAGS=-O0</code></p></li>
  <li><p><code>CFLAGS=-O1</code></p></li>
  <li><p><code>CFLAGS=-O1 -no-vec</code></p></li>
  <li><p><code>CFLAGS=-O2</code></p></li>
  <li><p><code>CFLAGS=-O2 -no-vec</code></p></li>
  <li><p><code>CFLAGS=-O3</code></p></li>
  <li><p><code>CFLAGS=-O3 -no-vec</code></p></li>
  </ol>
  
  <p>What is the shortest and most suitable way to compile all source codes using <code>make</code>?</p>