Re: syswait.h

[Klaus Zeitler <kzeitler@lucent.com>]

>>>>> "Richard" == Richard Stallman <rms@gnu.org> writes:
    Richard> 
    Richard> It looks like your system's sys/wait.h defines macros to access
    Richard> the wait argument as a structure, but that is not what Emacs
    Richard> expects on a POSIX system.  I don't have a copy of the POSIX spec
    Richard> here; does anyone know what it says about this?
    Richard> 
    Richard> Meanwhile, I think some people have build Emacs on HPUX 11
    Richard> and do not have this problem.  Why is that?  Could others who
    Richard> have HPUX 11 see how these macros are defined in sys/wait.h?
    Richard> Do they expect to operate on a struct or on an int?
    Richard> 
this is amazing, so here's an excerpt from /usr/include/sys/wait.h, i.e.
the last 20 lines:

#ifdef _BSD
#  undef  WIFEXITED
#  define WIFEXITED(_X)		((_X).w_stopval != WSTOPFLG && (_X).w_termsig == 0)
#  undef  WIFSTOPPED
#  define WIFSTOPPED(_X)	((_X).w_stopval == WSTOPFLG)
#  undef  WIFSIGNALED
#  define WIFSIGNALED(_X)	((_X).w_stopval != WSTOPFLG && (_X).w_termsig != 0)
#  undef  WEXITSTATUS
#  define WEXITSTATUS(_X) 	((_X).w_retcode)
#  undef  WTERMSIG
#  define WTERMSIG(_X)    	((_X).w_termsig)
#  undef  WCOREDUMP
#  define WCOREDUMP(_X)   	((_X).w_coredump)
#  undef  WSTOPSIG
#  define WSTOPSIG(_X)    	((_X).w_stopsig)
#endif  /* _BSD */

#endif	/* _SYS_WAIT_INCLUDED */


now looking at wait.h I thought maybe an #undef of _BSD would do also and
yes it works when I remove those 2 -D_BSD definitions from:
gcc -c -D_BSD   -Demacs -DHAVE_CONFIG_H -DUSE_MOTIF  -I. -I/vol/freeware/source/emacs-cvs/emacs/src -D_BSD -I/usr/include/X11R6 -I/usr/local/gnu/include -I/usr/include/X11R6 -I/usr/include/X11R5 -I/usr/include/Motif1.2 -I/usr/contrib/X11R6/include -I/usr/contrib/X11R5/include -g -O2 /vol/freeware/source/emacs-cvs/emacs/src/process.c

a quick grep for _BSD showed that this is hardly used, but set in Makefile,
so I removed it and emacs compiled fine (under HP-UX-B.11.11).
So maybe it would be a better idea to remove -D_BSD instead of
an undef of HAVE_SYS_WAIT_H

    Richard> If you add #undef HAVE_SYS_WAIT_H to s/hpux11.h, does that make it
    Richard> work?
    Richard> 
I've put it in s/hpux10.h since I had the same problems under 10.20 and yes
that works for 10.20 and 11.11, but as I said above I think it'd be
better to remove _BSD (for HP-UX 10.20 and above that is)

Klaus

-- 
 ------------------------------------------
|  Klaus Zeitler      Lucent Technologies  |
|  Email:             kzeitler@lucent.com  |
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