Bug 264635

Summary: Including headers from multicast(4) causes compilation failure: use of undeclared identifier 'NBBY'
Product: Base System Reporter: Yuri Victorovich <yuri>
Component: miscAssignee: freebsd-bugs (Nobody) <bugs>
Status: New ---    
Severity: Affects Only Me    
Priority: ---    
Version: 13.1-STABLE   
Hardware: Any   
OS: Any   

Description Yuri Victorovich freebsd_committer freebsd_triage 2022-06-12 15:14:14 UTC
These headers alone fail:
     #include <sys/types.h>
     #include <sys/socket.h>
     #include <netinet/in.h>
     #include <netinet/ip_mroute.h>
     #include <netinet6/ip6_mroute.h>

Failure:
In file included from x.c:6:
/usr/include/netinet6/ip6_mroute.h:92:39: error: use of undeclared identifier 'NBBY'
        if_mask ifs_bits[howmany(IF_SETSIZE, NIFBITS)];
                                             ^
/usr/include/netinet6/ip6_mroute.h:85:36: note: expanded from macro 'NIFBITS'
#define NIFBITS (sizeof(if_mask) * NBBY)        /* bits per mask */
                                   ^
/usr/include/netinet6/ip6_mroute.h:92:39: error: use of undeclared identifier 'NBBY'
/usr/include/netinet6/ip6_mroute.h:85:36: note: expanded from macro 'NIFBITS'
#define NIFBITS (sizeof(if_mask) * NBBY)        /* bits per mask */
                                   ^
2 errors generated.