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Avoid some duplication of effort.


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first cut for a fixed C header file check:

| Fix the recently introduced C header file checking: We now use the C
| pre-processor pass only (and no longer the complete compiler pass) to
| determine whether a C header file exists or not. Because only this way we're
| safe against inter-header dependencies (which caused horrible portability
| problems). The only drawback is that we now have a CPP configuration variable
| which has to be determined first (we do a similar approach as GNU Autoconf
| does here). When all fails the user still has the possibility to override it
| manually via APACI or src/Configuration.  As a fallback for the header check
| itself we can directly check the existance of the file under /usr/include,
| too.

Please try it out, fix it, grep out the PR-numbers, etc.
Cleanups and other stuff for src/helpers/* I'll do tomorrow.
Today I've totally tired and have to go to bed...


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- add prototype for the new ap_os_dso_init function (gcc complained)
- fix a parse error: the #elif has to use defined(...) (gcc complained)
- fix argument of ap_os_dso_init function (ANSI likes "void")


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as an alternate mechanism for mmap'd shared memory for RHAPSODY.
ap_private_extern defined to hide symbols that conflict with loaded
dynamic libraries on the NEXT and RHAPSODY platforms.

Submitted code was modified by Roy to use ap_private_extern instead of
directly using __private_extern__, and MAP_TMPFILE instead of TMP_MAP_ANON,
as suggested by Dean.

Submitted by:	Wilfredo Sanchez <wsanchez@apple.com>
Reviewed by:	Roy Fielding, Dean Gaudet


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This avoids the problem that apachectl cannot decide whether a "kill -0 pid"
failed because of permissions (or system restrictions) or because the pid
doesn't exist. Upon startup, an info msg is logged if an old PID file remains.

PR: 2947
Submitted by:	Charles Randall <crandall@matchlogic.com>
Reviewed by:	Martin Kraemer, Dean Gaudet


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"temporary or maintenance" problem (HTTP_SERVICE_UNAVAILABLE) but
HTTP_FORBIDDEN!
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	Fix 'resource config' to be 'server config.'

PR:		2997


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PR:
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Reviewed by:
mod_status is now a Base module and included by default.


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Submitted by: Youichirou Koga <y-koga@jp.FreeBSD.org>
PR: 2991


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Submitted by: Karl Berry <karl@gnu.org>
PR: 2994


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Submitted by: Youichirou Koga <y-koga@jp.FreeBSD.org>
PR: 2992


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x@82033 13f79535-47bb-0310-9956-ffa450edef68

notes on mod_perl/dso problem
PR:
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Submitted by:	Ken Parzygnat, Bill Stoddard
Reviewed by:	Bill Stoddard


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Submitted by: Ken Parzygnat, Bill Stoddard
Reviewed by: Bill Stoddard


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x@82029 13f79535-47bb-0310-9956-ffa450edef68

PS: The PR#2790 provides a few more fixes for problematic
    things in suexec.c. Because we have to be very carefully here, other
    should review them, too. That's why I commit only some of the fixes from
    this patch.

    The other problem we _really_ have to fix is the docroot-check at line
    428. But here the patch from the PR submitter seems to introduce a new
    problem: It accesses cwd[dlen] which can be out of memory bounds. Here
    memory bounds have to checked first.

    So, I would appreciate when someothers look at PR#2790, please.  At least
    the docroot-check _has_ to be fixed by us! But correctly, i.e. without
    introducing new problems, of course ;_)

Submitted by: Jeff Stewart <jws@purdue.edu>
Reviewed by: Ralf S. Engelschall
PR: 2790


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used -lprot. It's actually a bug in SCO5, of course.

The background is this feedback from R.Record after I replied to him:
``Third, i still find the addition of "-lx -ltinfo -lm" to be necessary on
OpenServer. It's no doubt a bug or at least incorrectly documented, but any
time -lprot is used you also need -lx and -ltinfo to get nap(), cur_term(),
setup_term() and others. I've informed our development system guys and this
may be fixed in a later release but for now these libs are necessary. FYI,
libx is the SCO Xenix enhancements which have been carried forward since time
immemorial while libtinfo is the terminfo library. It looks like libprot is
supposed to setup its own curses stuff but isn't built correctly''

BTW, the following he also mentioned:
``First, a kernel bug in OpenServer 5.0.0 and 5.0.2 made it necessary to build
Apache with USE_FCNTL_SERIALIZED_ACCEPT.  That bug was fixed in 5.0.4 and a
patch made available for 5.0.0/5.0.2 systems. Further, i have created an
installation script which detects what release you are installing on and
whether you need to apply the "Network Maintenance Supplement".  Therefore, i
can now build Apache without the USE_FCNTL_SERIALIZED_ACCEPT which gets me
much better performance.  So, as long as you get Apache for OpenServer from
_me_ (that is, the SCO Skunkware CD-ROM or web site), you're ok. If you build
it yourself, you'd better know whether you need to apply the appropriate
support supplement.''

But I still think it's not really good to remove the
USE_FCNTL_SERIALIZED_ACCEPT. The only correct solution would be to dispatch
for 5.0.0 and 5.0.2 and avoid it only for >= 5.0.4.

Submitted by: Ronald Record <rr@sco.com>
PR: 2533


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term "Digital UNIX".

Submitted by: Robert Urban <urban@rto.dec.com>


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trailing slash problem.

Submitted by: Jon Drukman <jsd@gamespot.com>
Reviewed by: Ralf S. Engelschall
PR: 2933


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only supported under OSF1 4.0 and higher. But because our GuessOS is still
unaware of OSF1 versions and the -msym is just to optimize the DSO statup time
a little bit it's safe and best when we leave it out now.

PR: 2969


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First all three functions no longer fail on strings containing "%" chars and
second ap_log_printf() no longer does a double-formatting (instead it directly
passes through the message to be formatted to the real internal formatting
function).

PR: 2941


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x@82021 13f79535-47bb-0310-9956-ffa450edef68

	The Include directive added during the 1.3 beta cycle was only
	valid in the server config files outside <Directory> and
	<Location> containers.  Ease that restriction a bit and
	allow it inside them (but not in .htaccess files until we
	figure out the security ramifications).

PR:		2727


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tree the setting only applies to that directory tree!"

PR:
Obtained from:
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Reviewed by:


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	Add a note about patch for *ERROR_NOTES default needing votes.


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	Add another case of providing 'why' info through *ERROR_NOTES:
	the default handler's 'file not found' report.


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to ports 443 and 563 (for https:// and snews://) and wrote a description
for the mod_proxy.html document.

Submitted by:	Sameer Parekh <sameer@c2.net>


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plus a few misc cleanups.

PR:
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1. the header/cpp stuff got more complicated than expected
2. the long-standing DSO/mod_perl problem is still not solved
   because Doug's patch doesn't work under FreeBSD as expected.
Shit happens... so move the timeline to the date Brian requested...


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Adding XML MIME types from RFC 2376


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we lost the regex.h deps we always had in the past.


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