Very Computer

>     My Linux Box are installed qmail 1.03  and vpopmail 4.90,
> I created one default domain and one virtual Domain,
> everything is ok. Now I want to install Courier-IMAP 1.3.10,
> But when i compile the Courier from nomal user, I am use
> ./configure with option --enable-unicode --without-ipv6 ,
> after complete, I run make, but While a moment, it show
> the error message as below:

> authvchkpw.c: In function `auth_vchkpw_changepass':
> authvchkpw.c:142:warning:assigment from Incompatible pointer type
> authvchkpw:c:151:dereferencing pointer to incomplete type
> authvchkpw:c:151:dereferencing pointer to incomplete type
> make[1]:***[authvchkpw.o] error1
> make[1]:Leaving directory '/tmp/courier-imap-1.3.10/authlib'
> make:***[all-recursive] error1

> I don't know what is mean! Anyone can call tell me what is wrong!
> Thank's !