title: Homebrew Mac M1 can't find installs
body: <p>I just switched to a M1 MacBook Air and I'm having trouble with Homebrew. The installation went fine I think, and then I added it to my path with the given commands:</p>
  <pre><code>Run these two commands in your terminal to add Homebrew to your PATH:
  
      echo 'eval &quot;$(/opt/homebrew/bin/brew shellenv)&quot;' &gt;&gt; /Users/xxx/.zprofile
      eval &quot;$(/opt/homebrew/bin/brew shellenv)&quot;
  </code></pre>
  <p>I also did <code>brew install cunit</code> and then when I typed <code>brew list</code> CUnit was listed there so I'm assuming the brew install of cunit worked.</p>
  <p>But when I run my C test code this is what I get:</p>
  <pre><code>test/test.c:3:10: fatal error: 'CUnit/Basic.h' file not found
  #include &lt;CUnit/Basic.h&gt;
           ^~~~~~~~~~~~~~~
  1 error generated.
  make: *** [test_compile] Error 1
  </code></pre>
  <p>I have been sitting with this for three days, called Apple support, searched every page related to this and still can't find a solution that works.</p>
  <p>Has anyone had the same problem? PLEASE help</p>