title: On gcc path searching - I'm not able to import files on current dir
body: <p>I'm a guy who came from python to cpp. I barely have any experience with <code>gcc</code> compiler.</p>
  <p>The problem I have is;</p>
  <p>if I have <code>foo.h</code> under <code>somedir</code>. Compiling <code>bar.cpp</code> by g++/gcc can't find <code>foo.h</code> unless I include the absolute path.</p>
  <p>some metadata</p>
  <pre><code>os : ubuntu 20.04 LTS
  gcc version : gcc (Ubuntu 9.3.0-17ubuntu1~20.04) 9.3.0
  </code></pre>
  <p>(note: I have tried <code>gcc -B . bar.cpp</code> but doesn't work)</p>