title: Makefile ifeq logical or
body: <p>How do you perform a logical OR using make's <code>ifeq</code> operator?</p>
  
  <p>e.g., I have (simplified):</p>
  
  <pre><code>ifeq ($(GCC_MINOR), 4)
      CFLAGS += -fno-strict-overflow
  endif
  ifeq ($(GCC_MINOR), 5)
      CFLAGS += -fno-strict-overflow
  endif
  </code></pre>
  
  <p>but would like to consolidate these lines.</p>
  
  <p>(yes, yes, autotools, configure, etc etc; too heavy-handed for the current situation, would like to keep everything within the Makefile here)</p>
  
  <p>[logical opposite of this question: <a href="https://stackoverflow.com/questions/6451477/how-to-use-of-multiple-condition-in-ifeq-statement">How to Use of Multiple condition in &#39;ifeq&#39; statement</a> ]</p>