[exim] ERROR EXIM

This is another one warning i have :/

mysql.c:31:49: mysql.h: No such file or directory
mysql.c:39: syntax error before "MYSQL"
mysql.c:39: warning: no semicolon at end of struct or union
mysql.c:40: warning: data definition has no type or storage class
mysql.c:42: syntax error before '*' token
mysql.c:42: warning: data definition has no type or storage class
mysql.c: In function `mysql_tidy':
mysql.c:69: `cn' undeclared (first use in this function)
mysql.c:69: (Each undeclared identifier is reported only once
mysql.c:69: for each function it appears in.)
mysql.c: In function `perform_mysql_search':
mysql.c:106: `MYSQL' undeclared (first use in this function)
mysql.c:106: `mysql_handle' undeclared (first use in this function)
mysql.c:107: `MYSQL_RES' undeclared (first use in this function)
mysql.c:107: `mysql_result' undeclared (first use in this function)
mysql.c:108: `MYSQL_ROW' undeclared (first use in this function)
mysql.c:108: syntax error before "mysql_row_data"
mysql.c:109: `MYSQL_FIELD' undeclared (first use in this function)
mysql.c:109: `fields' undeclared (first use in this function)
mysql.c:117: `cn' undeclared (first use in this function)
mysql.c:203: warning: comparison between pointer and integer
mysql.c:271: `mysql_row_data' undeclared (first use in this function)
mysql.c:273: warning: initialization makes pointer from integer without a cast
make[2]: *** [mysql.o] Error 1
make[2]: Leaving directory `/root/server-software/exim-4.44/build-Linux-i386/lookups'


Thanks

P.S. My english is not so good and maybe for that reason i cannon edit the Makefile properly....