libnbutil and getopt

[Sean Boudreau <seanb%qnx.com@localhost>]

Hi:

I'm seeing a couple of issues with the recent libnbutil
getopt changes:

1: devel/nbpatch doesn't bring in getopt_long.c as QNX doesn't
   have getopt.h.  The current check seems to only bring it in
   if getopt.h is present but doesn't contain struct option.
2: archivers/pax doesn't find getopt.h as libnbcompat/nbcompat.h
   only includes it if HAVE_NBCOMPAT_GETOPT_LONG is defined.

Both issues seems to come up on QNX due to no getopt.h at all.

Regards,

-seanb