libc {
  GLIBC_2.2 {
    # functions used in other libraries

    # g*
    glob64;

    # New rlimit interface
    getrlimit; setrlimit; getrlimit64; setrlimit64;

    # r*
    readdir64; readdir64_r;

    # s*
    scandir64; 
  }
  GLIBC_2.3.4 {
    getcontext;
    setcontext; 
    swapcontext;
  }
}