In file included from /usr/include/netinet/in.h:591,
                 from /usr/src/bin/csh/../../contrib/tcsh/sh.h:417,
                 from /usr/src/bin/csh/../../contrib/tcsh/gethost.c:33:
/usr/include/netinet6/in6.h:536:34: unterminated comment
/usr/include/netinet6/in6.h:514:1: unterminated #if
/usr/include/netinet6/in6.h:68:1: unterminated #ifndef