title: Undefined reference to symbol 'pthread_create@@GLIBC_2.2.5'
body: <p>I just pulled a git repository in which me and my friends are developing an application. When I am running <strong>make</strong> I am facing this error:</p>
  
  <blockquote>
    <p>undefined reference to symbol 'pthread_create@@GLIBC_2.2.5'
    /lib/x86_64-linux-gnu/libpthread.so.0: error adding symbols: DSO
    missing from command line collect2: error: ld returned 1 exit status
    Makefile:182: recipe for target 'bin/release/ns' failed make[1]: <strong>*
    [bin/release/ns] Error 1 Makefile:133: recipe for target 'release'
    failed make: *</strong> [release] Error 2</p>
  </blockquote>
  
  <p>my friend pulled the same branch and he runs it without any problem.</p>
  
  <p>Could you please give me some hints about the fix? Detailed answer would be highly appreciated.</p>