title: 'RTLD_NEXT' undeclared
body: <p>I'm trying to compile a C program but I get the error 'RTLD_NEXT' undeclared.  I think this is supposed to be defined in dlfcn.h which the c program includes, but when I looked inside dlfcn.h there is no RTLD_NEXT.</p>
  
  <p>How do I fix this?</p>