php5-mysqli problem

[liNEr Crime]

Cann't install /usr/ports/databases/php5-mysqli/
Error:
/usr/local/include/mysql/m_string.h: In function 'lex_string_set':
/usr/local/include/mysql/m_string.h:304: error: dereferencing pointer to
incomplete type
/usr/local/include/mysql/m_string.h:305: error: dereferencing pointer to
incomplete type
*** Error code 1
1 error
*** Error code 1

Stop in /usr/ports/databases/php5-mysqli.
*** Error code 1

FreeBSD free.web 8.1-RELEASE FreeBSD 8.1-RELEASE #0: Mon Jul 19 02:55:53 UTC
2010