Milter-greylist

> > milter-greylist.c: In function 'main':
> > milter-greylist.c:1575: error: 'PACKAGE_URL' undeclared (first
> use in this function)
> > milter-greylist.c:1575: error: (Each undeclared identifier is reported
>  only once
> > milter-greylist.c:1575: error: for each function it appears in.)
> 
> Please add in milter-greylist.c:
> #ifndef PACKAGE_URL
> #define PACKAGE_URL ""
> #endif PACKAGE_URL
> 
> after #include "config.h"
> 

It all compiles fine with just a warning:
milter-greylist.c:36:8: warning: extra tokens at end of #endif directive