title: /usr/local/lib: file not recognized: Is a directory
body: <p>When installing justniffer on CentOS 6.5,</p>
  
  <pre><code>./configure
  </code></pre>
  
  <p>works fine, but <code>make</code> gives the following error:</p>
  
  <pre><code>libtool: link: g++ -g -O2 -o justniffer justniffer-main.o justniffer-formatter.o justniffer-utilities.o justniffer-regex.o justniffer-prog_read_file.o /usr/local/lib  -L/root/justniffer/lib/libnids-1.21_patched/src -lnids2 -lpcap -L/usr/local/lib -lboost_regex-mt -lboost_program_options -lpython2.6
  /usr/local/lib: file not recognized: Is a directory
  collect2: ld returned 1 exit status
  make[1]: *** [justniffer] Error 1
  make[1]: Leaving directory `/root/justniffer/src'
  make: *** [all-recursive] Error 1
  </code></pre>
  
  <p>What's the solution for this?</p>