маленький вопросик по bind

Нет.

Syntax
include path_name;

Definition and Usage
The include statement inserts the specified file at the
point that the include statement is encountered. It cannot
be used within another statement, though, so a line such as

acl internal_hosts { include internal_hosts.acl; };

is not allowed.

Use include to break the configuration up into easily-
managed chunks. For example:

include "/etc/security/keys.bind";
include "/etc/acls.bind";

could be used at the top of a BIND configuration file in
order to include any acl or key information.

Be careful not to use ``#include," like you would in a C
program, because ``#'' is used to start a comment.

это я читал, тут не сказано что нельзя )

Ну так в чем проблема ? Проверь: будет так работать - значит можно, нет - значит нельзя. Делов-то...

Можно ещё в сырцах код парсера конфигов глянуть.. ;-)