bring mod_rewrite up to 2.3.9:

  Patchlevel 8 (961211):

      o Incorporated the "const" changes of the Apache Group to 2.3.5
        into this release. But in a way to be backward compatible to Apache
        1.1.1.

      o Made gmtoff usage again workable in both 1.1.1 and 1.2
        because the function was changed in Apache 1.2.

      o Incorporated a patch to make mod_rewrite useable under Apache SSL,
        i.e. with https:// URLs..
        [Thanks to Michael Smith <mjs@cursci.co.uk>]

      o Added a check whether the proxy module is
        compiled in or not. If not then [P] is forbidden.  This is not 100%
        safe, because it can still be turned off (ProxyRequests off) and then
        [P] can lead to a core dump. But there is no trivial way to check if
        the ProxyRequest is turned on or off. But the current variant of the
        check is useful for people who use [P] but have no proxy module
        even compiled in.

      o Added some warning to the documentation that ProxyRequests must be
        "on" when the [P] flag gets used.
        [Thanks to Philip Peake <philip@vogon.rain.com> for hint]

      o Fixed the installation description in the docs.

      o Fixed a recently removed "#" char in mod_rewrite.h

  Patchlevel 9:

The recently introduced proxy check code was syntactically correct but not
semantically. Hmmm.. lead to a core dump under 1.2b2. Thanks to Mark J. Cox
<mark@ukweb.com> for the hint.


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QNX needs Apache's regex libs.


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Submitted by:	Doug MacEachern

Added rwrite() function for mod_perl, among others.


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was the wrong fix.  The real error was in the default log format in
mod_log_config which was not really CLF.

Submitted by: Rob Hartill
Reviewed by: Ben Laurie, Roy Fielding


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Flipped it back to a previous state due to incorrect information from
someone at HP.  Also added it for HPUX 9.x.


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In your "Known Bugs" documentation page you asked
confirmations or denies about compilation problems
on AIX machines.

I had no compilation problem on a AIX 4.1 machine.


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Ultrix needs HS's regex package.


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Submitted by:	Bartley_Troyan@BLaCKSMITH.com, Alvin Austin <alvin@cs.usask.ca>

Allow NeXT to compile cleanly.


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Submitted by:	bdale@col.hp.com

Another small tweak to the HPUX def.


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context. b2 as released is OK, since this condition was always NULL for
Host:.


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Correct thinko in table_get() arg. Add protection against URLs like
http://somehost:/foo/bar with an isdigit() test on the char following
the colon after a hostname.


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sigaction() has the proper effect of blocking the signal until the
return from the handler.
Reviewed by: Ben Laurie, Paul Richards


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Submitted by:	Gary Smiley


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2) fixes NoCache behavior when using ProxyRemote (ProxyRemote host would
     cache nothing if it was in the local domain, and the local domain
     was in the NoCache list)
3) Adds Host: header when not available
4) Some code cleanup and clarification

1) and 2) were reported by Martin Kraemer, with patches. The function,
though not the form, of Martin's stuff is adhered to here.


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Submitted by:	Marc Evans <marc@destek.net>
patches for DEC AXP running OSF/1 v3.0.


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Submitted by:	bziller@ba-stuttgart.de

Typo!  None of us saw it coz we're all using -DSTATUS.  Teehee.


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Added CFLAGS for HPUX10 compiler.

	Bria


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Clarification


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anymore, separately answer all three possible outcomes, on the presumption that
there really is a point for a "unixware1" and "unixware2".


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Submitted by:	Rob Hartill

Note added for clarity.


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Submitted by:	Alan Burlison <alanburlison@unn.unisys.com>

Enhancements to allow Unixware 2.1.1 to be recognized and compile.


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Obtained from:  Howard Fear, Alexei Kosut

1) The patch that I submitted a couple of days ago which recieved
   one +1 and fizzled.  Fixes an ommision that caused include variables
   to not be parsed in config errmsg directives.  Potential
   incompatibilites are the same as the extensions of mod_include
   generally. [Howard Fear]

2) Patch submitted by Ben Yoshino <ben@wiliki.eng.hawaii.edu>
   to allow backslash quoting of characters that would otherwise
   be taken as value terminators.  Ex:
       <!--exec cmd="echo \"hello, world\"" -->
   Potential incompatibilities only to people who carelessly throw
   around '\'s. [Howard Fear]

3) Patch to fix the other part of the problem report submitted by
   Ben Yoshino <ben@wiliki.eng.hawaii.edu>.  I took that approach
   outlined in my email this morning and added a flag to parse_string
   to pass the variable name through on the exec cmd directive when
   the variable hasn't been defined.  It will still substitute a
   null value for all other directives.  It will also substitute a
   null value if the variable has been defined with a null value:
      <!--#if expr="$notset" -->   # substitutes null (if fails)
      <!--#exec cmd="echo '$notset'" -->   # echo '$notset'
      <!--#set var="notset" value="" -->
      <!--#exec cmd="echo '$notset'" -->   # echo ''
   I believe that this approach minimizes the potential incompatibilties
   for current ssi and xssi users. [Howard Fear]

4) Patch to fix compiler warnings reported by perrot@lal.in2p3.fr.
   Changes are cosmetic and shouldn't effect logic. [Howard Fear]

5) Remove HAVE_POSIX_REGEX cruft [Alexei Kosut, Rasmus Lerdorf


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Rob modified the section on robot detection and I modified the section on
redirecting an entire server to include a section on mod_rewrite


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Reviewed by: Randy Terbush, Chuck Murcko


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Obtained from:  Martin.Kraemer@mch.sni.de

Typos, clarifications, and overall improvements.


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