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From: mike@prg.ox.ac.uk (Mike Spivey)
Newsgroups: comp.os.minix
Subject: Stupid questions about Minix-386 ...
Message-ID: <MIKE.91Apr8172810@client25.prg.ox.ac.uk>
Date: 8 Apr 91 16:28:10 GMT
Sender: news@prg.ox.ac.uk
Distribution: comp
Organization: Oxford University Computing Laboratory, UK
Lines: 37

... at least they're not about the demo disk!

1.	Bruce's C compiler fails test 9, which seems to be about the
	interaction between longjumps and register variables.  Is this
	normal, and should I worry about it?

2.	Recompiling bcc is almost enough to allow the assembler,
	loader and libraries to be in another place than /usr/local,
	but the pathname /usr/local/lib is wired into ld (for which I
	have no source).  Can I do better than patch it with de?

3.	Has anyone ported the Jove editor to Minix?  If so, please
	mail your experiences.  I seem to have it working, and will
	post patches if I turn out to be right.

4.	Jove requires two things connected with process groups to
	manage interactive sub-processes: 

	a.	a setpgrp() system call with two process numbers as
	arguments that sets the 'process group' of the first arg to be
	the second arg; and 

	b.	the possibility of passing a negative number -pgrp to
	kill(), with the effect of killing all processes in process
	group pgrp.

	Both are easy enough to add with small changes to MM, but can
	anyone post me man pages for sensible implementations of these
	in other versions of UNIX?  I'm particularly interested in the
	proper pre-condition of setpgrp() -- Jove uses it only in the
	form setpgrp(pid, pid) where pid is the calling process.

	Maybe they are in POSIX (in which case I apologize for not
	having been able to look), and maybe they are not in POSIX (in
	which case I apologize for mentioning them).

-- Mike Spivey