message: Add flag to build using external libraries, to enforce symbol resolution inside media server, avoids conflicts with openssl embedded into node
diff: },
  {
  "libraries" : [ "<(external_libmediaserver)" ],
  - "include_dirs" : [ "<@(external_libmediaserver_include_dirs)" ]
  + "include_dirs" : [ "<@(external_libmediaserver_include_dirs)" ],
  + 'conditions':
  + [
  + ['OS=="linux"', {
  + "ldflags" : [" -Wl,-Bsymbolic "],
  + }],
  + ]
  }
  ]
  ]
  