> 	When C type long contains 64 bits (actually, when it is larger than
> 	an IPv4 address), the "sonar" screensaver fails to skip the
> 	subnet broadcast address.
...
> +#if     __alpha /* really 64-bit long */
> +typedef unsigned int    ipaddr_t;
> +#else
> +typedef unsigned long   ipaddr_t;
> +#endif

Just use
typedef uint32_t ipaddr_t;
Then it is machine independant.
There might even be a definition in one of the inet header files.

	David

-- 
David Laight: david@l8s.co.uk