glibc/iconv/Versions

libc {
  GLIBC_2.1 {
    # i*
    iconv; iconv_open; iconv_close;
  }
  GLIBC_PRIVATE {
    # functions shared with iconv program
    __gconv_get_alias_db; __gconv_get_cache; __gconv_get_modules_db;
  }
}