[Dovecot] Compiler warnings

Hi,

I'm trying to install Dovecot 1.0RC22 on an old Trustix 1.5 box and am getting the compiler warnings:

quota-storage.c:275: warning: pointer of type `void *' used in arithmetic

convert-storage.c:50: warning: pointer of type `void *' used in arithmetic

acl-backend-vfile.c:212: warning: pointer of type `void *' used in arithmetic

There are many more of these pointer warnings in the various modules when compiling. Is this a problem?

Thanks, Stephen