请教，一个简单C程序调试无法通过。

lifeprotocol

MYSQL服务器已经启动，源程序很简单，
但编译时出错，请各位大虾指点，谢谢！

源程序
----------------------------------------
#include <stdio.h>;
#include <mysql.h>;

int main(void)
{
MYSQL *conn;
conn = mysql_init(NULL);
mysql_real_connect(conn, NULL, NULL, NULL, NULL, 0, NULL, 0);
mysql_close(conn);
exit(0);
}
----------------------------------------
编译命令:
gcc -o mytest mytest.c -I/usr/local/include/mysql \
-L/usr/local/lib/mysql -lmysqlclient

出错信息:
/usr/local/mysql/lib/libmysqlclient.a(my_compress.o): In function 'my_compress_alloc":
my_compress.o(.text+0x12a): undefined refrece to 'compress"
/usr/local/mysql/lib/libmysqlclient.a(my_compress.o):  In function 'my_uncompress_alloc":
my_uncompress.o(.text+0x12a): undefined refrece to 'uncompress"

北京野狼

gcc -o mytest mytest.c -I/usr/local/include/mysql \
-L/usr/local/lib/mysql -lmysqlclient  -lz

lifeprotocol

Thanks !