title: error while loading shared libraries: libgfortran.so.3: cannot open shared object file: No such file or directory
body: <p>I am running a Fortran model on a linux server (CentOS8). When I run the .exe file (<code>./pgd.exe</code>) compiled by <code>make</code>, I got the error message:</p>
  <pre><code>./pgd.exe: error while loading shared libraries: libgfortran.so.3: cannot open shared object file: No such file or directory
  </code></pre>
  <p>And if I type <code>where gfortran</code>, I got nothing. But if I type <code>whereis libgfortran.so.3</code>, I got</p>
  <p><code>libgfortran.so: /usr/lib64/libgfortran.so.5</code>.</p>
  <p>Since this is a server used by many users, I cannot ask the admin to degrade the libgfortran.so.5 to version 3, how can I do to ensure the model running? I searched that there are some similar questions and potential solutions are like <code>sudo apt-get install libgfortran3</code>. But I don't know how to install libgfortran3 under my account since I am not the admin and couldn't use <code>sudo</code>. Thanks!</p>