[ppml] 240/4

[vixie at vix.com]

> *** /usr/src/sys/netinet/in.h.orig      Fri May  4 08:58:10 2007
> --- /usr/src/sys/netinet/in.h   Fri May  4 08:58:38 2007
> ***************
> *** 341,349 ****
> - #define       IN_EXPERIMENTAL(i)      (((u_int32_t)(i) & 0xf0000000) == 0xf0000000)
> - #define       IN_BADCLASS(i)          (((u_int32_t)(i) & 0xf0000000) == 0xf0000000)

you can't remove these macros.  just make them always-return-zero.