glibc/iconv/Versions

libc {
  GLIBC_2.1 {
    # global variables
    __gconv_alias_db; __gconv_modules_db;

    # i*
    iconv_open; iconv; iconv_close;
  }
  GLIBC_2.2.5 {
    # variable shared with iconv program
    __gconv_cache;
  }
}