Copy stable/9 to releng/9.3 as part of the 9.3-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Copy head to stable/9 as part of 9.0-RELEASE release cycle.

Approved by: re (implicit)

Add ability to search up the directory hierarchy for the system directory.
Do by specifying ".../" with '-m' or MAKESYSPATH (new) environment variable.

Reviewed by: <sjg@NetBSD.org>
Obtained from: NetBSD (+ embellishment by me, sent back to NetBSD)

Make paths an explicite datatype instead of using the generic Lst.
A Path is now a TAILQ of PathElements each of which just points to
a reference counted directory. Rename all functions dealing with Paths
from the Dir_ prefix to a Path_ prefix.

Rename struct Path to struct Dir and move it into the C-file. It
is not used outside.

Fix the prototypes by addings some constness. This should have been
committed together with the commit to dir.c:1.48.

Some more easy constification.

Submitted by: Max Okumoto <okumoto@ucsd.edu>

Clean up include files and file including. Split nonints.h into pieces
that get included just where they are needed. All headers include the
headers that they need to compile (just with an empty .c file). Sort
includes alphabetically where apropriate and fix some duplicate commenting
for struct Job, struct GNode and struct Shell by removing one version and
inlining the comments into the structure declaration (the comments have been
somewhat outdated).

This patch does not contain functional changes (checked with md5).

Submitted by: Max Okumoto <okumoto@ucsd.edu>

Remove all the cleanup functions. There is no reason to free memory
just before exiting (especially given the number of memory leaks) -
it just costs time.

Typedefs of pointers to structs are evil. Make Lst and LstNode typedef of
the structs itself not of pointers to them. This will simplify constification.

Checked by: diff on the object files

Some constification which doesn't require code rewrites.

Style: fix indentation.

Stylification: missing spaces, extra space after function names, casts
and the sizeof operator, missing empty lines, void casts, extra empty lines.

Checked by: diff on make *.o lst.lib/*.o

Submitted by: Max Okumoto <okumoto@soe.ucsd.edu> (partly)

- Cut out the code that caches the "." directory out of Dir_Init()
into a separate function, Dir_InitDot().

- Postpone the current and object directories detection (and caching
of the "." directory) until after all command line arguments are
parsed. This makes the -C option DTRT.

PR: bin/47149

Fix copyrights, and undo SCS ID damage.

remove __P

There's also no point in #typedef'ing void/char pointers. Accordingly,
rip out ClientData/Address pointers and use standard types.

Obtained from: OpenBSD

$Id$ -> $FreeBSD$

Revert $FreeBSD$ to $Id$

Make the long-awaited change from $Id$ to $FreeBSD$

This will make a number of things easier in the future, as well as (finally!)
avoiding the Id-smashing problem which has plagued developers for so long.

Boy, I'm glad we're not using sup anymore. This update would have been
insane otherwise.

O' to be bitten by CVS. Cleanup after import
of Christos' version of make(1) and add Id's.

Set straight by: Bruce Evans and Peter Wemm :)

Merge in NetBSD's changes to make(1). Changes include:

- Add the .PHONY, .PARALLEL, and .WAIT directives
- Added the -B and -m commandline flags
- misc. man page cleanups
- numerous job-related enhancements
- removed unused header file (bit.h)
- add util.c for functions not found in other envs.
- and a few coordinated whitespace changes

Special thanks to Christos Zoulas <christos@netbsd.org>
for help in the merge. A 'diff -ur' between Net and
FreeBSD now only contains sccsid-related diffs. :)

Obtained from: NetBSD, christos@netbsd.org, and me

Bring in a number of changes from NetBSD's make, fixing quite a few
problems in the process:

1. Quoting should work properly now. In particular, Chet's reported bash
make problem has gone away.
2. A lot of memory that just wasn't being free'd after use is now freed.
This should cause make to take up a LOT less memory when dealing with
archive targets.
3. Give proper credit to Adam de Boor in a number of files.
Obtained from: NetBSD (and Adam de Boor)

This commit was generated by cvs2svn to compensate for changes in r1590,
which included commits to RCS files with non-trunk default branches.

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