libc {

  GLIBC_2.0 {

    # functions with special/multiple interfaces

    __bsd_getpgrp; __getpgid; __setpgid;

    # functions with required interface outside normal name space

    _exit;

    # functions used in other libraries

    __sched_get_priority_max; __sched_get_priority_min;

    __sched_getparam; __sched_getscheduler; __sched_setscheduler;

    __sched_yield; __fork; __getpid; __wait;

    # functions used by libstdc++ 2.7.2

    __waitpid;

    # global variables

    __environ; _environ;

    # variables in normal name space

    environ; optarg; opterr; optind; optopt;

    re_max_failures; re_syntax_options;

    # a*

    alarm;

    # c*

    confstr;

    # e*

    execl; execle; execlp; execv; execve; execvp; fexecve;

    # f*

    fnmatch; fork; fpathconf; freeaddrinfo;

    # g*

    getaddrinfo; getdtablesize; getegid; geteuid; getgid; getopt; getopt_long;

    getopt_long_only; getpgid; getpgrp; getpid; getppid; getsid; getuid; glob;

    glob_pattern_p; globfree; group_member;

    # n*

    nanosleep;

    # p*

    pathconf; pause; pselect;

    # r*

    re_comp; re_compile_fastmap; re_compile_pattern; re_exec; re_match;

    re_match_2; re_search; re_search_2; re_set_registers; re_set_syntax;

    regcomp; regerror; regexec; regfree;

    # s*

    sched_get_priority_max; sched_get_priority_min; sched_getparam;

    sched_getscheduler; sched_rr_get_interval; sched_setparam;

    sched_setscheduler; sched_yield; setegid; seteuid; setgid;

    setpgid; setpgrp; setsid; setuid; sleep; sysconf;

    # t*

    times;

    # u*

    uname;

    # v*

    vfork;

    # w*

    wait; wait3; wait4; waitpid;

  }

  GLIBC_2.1 {

    # functions used in other libraries

    __pread64; __pwrite64;

    # g*

    gai_strerror; getnameinfo; glob64; globfree64;

    # p*

    pread; pread64; pwrite; pwrite64;

    # w*

    waitid; wordexp; wordfree;

  }

  GLIBC_2.1.2 {

    # functions used in other libraries

    __vfork;

  }

  GLIBC_2.2 {

    # p*

    posix_spawn_file_actions_init; posix_spawn_file_actions_destroy;

    posix_spawn_file_actions_addclose; posix_spawn_file_actions_addopen;

    posix_spawn_file_actions_adddup2;

    posix_spawnattr_init; posix_spawnattr_destroy;

    posix_spawnattr_getsigdefault; posix_spawnattr_setsigdefault;

    posix_spawnattr_getflags; posix_spawnattr_setflags;

    posix_spawnattr_getpgroup; posix_spawnattr_setpgroup;

    posix_spawnattr_setsigmask; posix_spawnattr_getsigmask;

    posix_spawn; posix_spawnp; posix_spawnattr_getschedpolicy;

    posix_spawnattr_setschedpolicy; posix_spawnattr_getschedparam;

    posix_spawnattr_setschedparam;

    # Used in macros.

    __sysconf;

  }

  GLIBC_2.2.3 {

    # Extended Interface.

    fnmatch;

  }

  GLIBC_2.2.6 {

    # For syscall wrapper

    __nanosleep;

  }

  GLIBC_2.3.2 {

    # Note that these symbols appear in sysdeps/unix/sysv/linux/Versions

    # under GLIBC_2.0; the first instance in the script is taken as the

    # default, so linux configurations put them in GLIBC_2.0 while other

    # configuration put them in GLIBC_2.3.2.

    getresgid; getresuid; setresgid; setresuid;

  }

  GLIBC_2.3.3 {

    sched_getaffinity; sched_setaffinity;

  }

  GLIBC_2.3.4 {

    regexec;

  }

  GLIBC_2.6 {

    __sched_cpucount;

  }

  GLIBC_2.7 {

    __sched_cpualloc; __sched_cpufree;

  }

  GLIBC_2.10 {

    __posix_getopt;

  }

  GLIBC_2.11 {

    execvpe;

  }

  GLIBC_2.27 {

    glob; glob64;

  }

  GLIBC_PRIVATE {

    __libc_fork; __libc_pread; __libc_pwrite;

    __nanosleep_nocancel; __pause_nocancel;

  }

}