[mysql] MySQL 8 deprecates my_bool

replace my_bool with char in mod_vhostdb_mysql and mod_mysql_vhost
(mysql.h contains: typedef char my_bool; and passes a pointer to it
 as third argument, a (void *), to mysql_options())

src/mod_mysql_vhost.c

@@ -193,7 +193,6 @@ SERVER_FUNC(mod_mysql_vhost_set_defaults) {
 		/* all have to be set */
 		if (!(buffer_string_is_empty(s->myuser) ||
 		      buffer_string_is_empty(s->mydb))) {
-			my_bool reconnect = 1;
 
 			if (NULL == (s->mysql = mysql_init(NULL))) {
 				log_error_write(srv, __FILE__, __LINE__, "s", "mysql_init() failed, exiting...");
@@ -202,7 +201,10 @@ SERVER_FUNC(mod_mysql_vhost_set_defaults) {
 
 #if MYSQL_VERSION_ID >= 50013
 			/* in mysql versions above 5.0.3 the reconnect flag is off by default */
-			mysql_options(s->mysql, MYSQL_OPT_RECONNECT, &reconnect);
+			{
+				char reconnect = 1;
+				mysql_options(s->mysql, MYSQL_OPT_RECONNECT, &reconnect);
+			}
 #endif
 
 #define FOO(x) (buffer_string_is_empty(s->x) ? NULL : s->x->ptr)

src/mod_vhostdb_mysql.c

@@ -91,7 +91,7 @@ static int mod_vhostdb_dbconf_setup (server *srv, array *opts, void **vdata)
       #if MYSQL_VERSION_ID >= 50013
         /* in mysql versions above 5.0.3 the reconnect flag is off by default */
         {
-            my_bool reconnect = 1;
+            char reconnect = 1;
             mysql_options(dbconn, MYSQL_OPT_RECONNECT, &reconnect);
         }
       #endif