mysql 缺少字符集

mysql 5.0.27在源代码编译安装后，发现没有GBK字符集，该如何解决？？？
mysql> show character set;
+----------+-----------------------------+---------------------+--------+
| Charset  | Description                 | Default collation   | Maxlen |
+----------+-----------------------------+---------------------+--------+
| dec8     | DEC West European           | dec8_swedish_ci     |      1 | 
| cp850    | DOS West European           | cp850_general_ci    |      1 | 
| hp8      | HP West European            | hp8_english_ci      |      1 | 
| koi8r    | KOI8-R Relcom Russian       | koi8r_general_ci    |      1 | 
| latin1   | cp1252 West European        | latin1_swedish_ci   |      1 | 
| latin2   | ISO 8859-2 Central European | latin2_general_ci   |      1 | 
| swe7     | 7bit Swedish                | swe7_swedish_ci     |      1 | 
| ascii    | US ASCII                    | ascii_general_ci    |      1 | 
| hebrew   | ISO 8859-8 Hebrew           | hebrew_general_ci   |      1 | 
| koi8u    | KOI8-U Ukrainian            | koi8u_general_ci    |      1 | 
| greek    | ISO 8859-7 Greek            | greek_general_ci    |      1 | 
| cp1250   | Windows Central European    | cp1250_general_ci   |      1 | 
| latin5   | ISO 8859-9 Turkish          | latin5_turkish_ci   |      1 | 
| armscii8 | ARMSCII-8 Armenian          | armscii8_general_ci |      1 | 
| utf8     | UTF-8 Unicode               | utf8_general_ci     |      3 | 
| cp866    | DOS Russian                 | cp866_general_ci    |      1 | 
| keybcs2  | DOS Kamenicky Czech-Slovak  | keybcs2_general_ci  |      1 | 
| macce    | Mac Central European        | macce_general_ci    |      1 | 
| macroman | Mac West European           | macroman_general_ci |      1 | 
| cp852    | DOS Central European        | cp852_general_ci    |      1 | 
| latin7   | ISO 8859-13 Baltic          | latin7_general_ci   |      1 | 
| cp1251   | Windows Cyrillic            | cp1251_general_ci   |      1 | 
| cp1256   | Windows Arabic              | cp1256_general_ci   |      1 | 
| cp1257   | Windows Baltic              | cp1257_general_ci   |      1 | 
| binary   | Binary pseudo charset       | binary              |      1 | 
| geostd8  | GEOSTD8 Georgian            | geostd8_general_ci  |      1 | 
+----------+-----------------------------+---------------------+--------+
26 rows in set (0.00 sec)
谢谢