r730882 broke builds on MacOSX.

Now we put the PCRE libs into a new variable PCRE_LIBS
and add it to HTTPD_LDFLAGS.

That way the detected libs for PCRE could be reused in
other parts of the build system if necessary.

Side effect: I had to change the handling of HTTPD_FLAGS on
AIX and OS390 from hard setting of the variable to using
APR_ADDTO(). I hope that macro works on those platforms.


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configure checks against a /usr installed OpenSSL and then link against
a different pkg-config installed OpenSSL.

(Hint: Try with Mac OS X with MacPorts's OpenSSL or FreeBSD w/OpenSSL ports.)

* acinclude.m4
  (APACHE_CHECK_SSL_TOOLKIT): Load in pkg-config variables first before doing
  any OpenSSL checks so that we don't clobber things later.


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* acinclude.m4
  (APACHE_CHECK_SSL_TOOLKIT): Move CHECKING line to match; convert a warning
  to AC_MSG_WARN; remove a spurious SSL-C checking; redirect stderr from the
  pkgconfig so as not to spew on errors.


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soft limit to the hard limit (aka default Mac OS X).

* support/config.m4: Redirect output to /dev/null.


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In both cases we already include SSL_LIBS, so lets add
the necessary link flags only to SSL_LIBS and not to
EXTRA_LDFLAGS.

The last of a series of changes of type
"restrict link dependencies where possible".


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sqrt()).


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for global mutex (at least on Solaris).


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mod_lua to libserf resp. liblua.

No need to include this dependency in all other
modules and binaries.


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for all MPMs that do not support it
(AP_MPM_WANT_SET_LOCKFILE undefined).


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for simple mpm.

- Before, simple wouldn't start without explicit
  config, because default numbers were 0
- log messages "more" and "less" were misleading


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when possible.

It seems that's the way it is used for most modules,
so remove unnecessary explicit object file lists.


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Also move '#error' after the includes, because it seems
CMSG_DATA is commonly defined in sys/socket.h.

The check also overwrites _apmod_error_fatal in case
CMSG_DATA is not defined to allow building when configure
was called with "--enable-proxy". Otherwise one would need
to explicitly disable mod_proxy_fdpass.

We might want to remove the #error completely, because the
new feature test prevents the building of the module when
the symbol is not defined.


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to resolve ap_run_drop_privileges.


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The modules needs the header which is at the moment
only part of the ssl-evp branch of APR.


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in mod_example_ipc.
Addition to change in r722399.


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to allow automatic indentation in configure help output.


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with the locations, etc. now... adding getter/setter
will be over the weekend and post-2.3.1 but I figured
at least do this beforehand...

I love trunk :)



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in order to better choose... complete the API insulation.


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