title: undefined reference to symbol / ..libdl.so.2: error adding symbols: DSO missing from command line
body: <p>I currently have a problem compiling with gitian-builder.</p>
  
  <p>It tells me this:</p>
  
  <pre><code>/usr/bin/ld: /usr/lib/x86_64-linux-gnu/libcrypto.a(dso_dlfcn.o): undefined reference to symbol 'dlclose@@GLIBC_2.2.5'
  //lib/x86_64-linux-gnu/libdl.so.2: error adding symbols: DSO missing from command line
  </code></pre>
  
  <p>Does anyone know how to fix this?</p>
  
  <p>I don't find anything useful.</p>
  
  <p>Many thanks in advance!</p>