<isc/net.h> and Win32's <isc/thread.h> needed
                        ISC_LANG_BEGINDECLS/ISC_LANG_ENDDECLS.

Support functions to follow soon.

to host program.  Clean up some memory issues in dighost.c and dig.c.

Still need to track down memory issues on ^C cleanup.

                        <isc/boolean.h>, now uses <isc/types.h> in place
                        of <isc/time.h>, and needed ISC_LANG_BEGINDECLS
                        and ISC_LANG_ENDDECLS.

                        need <isc/eventclass.h>.

                        for ISC_R_* codes used in macros.

                        <isc/boolean.h>, and now includes <isc/types.h>
                        instead of <isc/time.h>.
(does not need pthread.h because it *does* need isc/mutex.h, which
will be guaranteed to provide pthread.h)

'category default' was present in the config file

                        ISC_LANG_ENDDECLS at end of header.

                        <isc/mutex.h>, <isc/once.h>, <isc/region.h>, and
                        <isc/resultclass.h> do not need <isc/lang.h>.

-1, 0, 1.

or set the zone status bit for signed children.

                        <isc/result.h>.  Multiple inclusion protection
                        symbol fixed from ISC_SYMBOL_H to ISC_SYMTAB_H.
                        isc_symtab_t moved to <isc/types.h>.

                        <isc/bufferlist.h>, <isc/task.h>, <isc/mem.h> or
                        <isc/net.h>.

                        not have _generic_ in their names.