System interfaces compatible with GNU or Linux extensions:

    accept4
    argz_add
    argz_add_sep
    argz_append
    argz_count
    argz_create
    argz_create_sep
    argz_delete
    argz_extract
    argz_insert
    argz_next
    argz_replace
    argz_stringify
    asnprintf
    asprintf
    asprintf_r
    canonicalize_file_name
    dremf
    dup3
    envz_add
    envz_entry
    envz_get
    envz_merge
    envz_remove
    envz_strip
    error
    error_at_line
    euidaccess
    execvpe
    exp10
    exp10f
    fcloseall
    fcloseall_r
    fegetprec
    fesetprec
    feenableexcept
    fedisableexcept
    fegetexcept
    fgetxattr
    flistxattr
    fopencookie
    fremovexattr
    fsetxattr
    get_avphys_pages
    get_current_dir_name
    get_phys_pages
    get_nprocs
    get_nprocs_conf
    getmntent_r
    getopt_long
    getopt_long_only
    getpt
    getxattr
    lgetxattr
    listxattr
    llistxattr
    lremovexattr
    lsetxattr
    memmem
    mempcpy
    memrchr
    mkostemp
    mkostemps
    pipe2
    pow10
    pow10f
    ppoll
    pthread_getattr_np
    pthread_sigqueue
    ptsname_r
    rawmemchr
    removexattr
    scandirat
    setxattr
    strchrnul
    sysinfo
    tdestroy
    timegm
    timelocal
    updwtmpx
    utmpxname
    vasnprintf
    vasprintf
    vasprintf_r