title: OPENSSL_API_COMPAT expresses an impossible API compatibility level c++
body: <p>#error:  &quot;OPENSSL_API_COMPAT expresses an impossible API compatibility level&quot; why when I import these 2 lines of code it gives me the error above?</p>
  <pre><code>#define OPENSSL_API_COMPAT 0x10101000L
  #include &lt;openssl/sha.h&gt;
  #include &lt;openssl/hmac.h&gt;
  </code></pre>