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From Branko ─îibej <br...@xbc.nu>
Subject Re: Apache 2.2.9 questions
Date Tue, 24 Jun 2008 14:49:46 GMT
Steve Comstock wrote:
> As mentioned earlier, I am trying to install Apache 2.2.9
> onto z/OS 1.9. Had some difficulties, seem to have solved.
>
> However, a few questions...
>
> I started with the page
>
>    http://people.apache.org/~trawick/apache-2-on-os390.html
>
> which describes a process for installing Apache 2.0 onto
> OS/390. So, a similar code base, but somewhat dated. On
> this page, the author asserts:
>
> 1. you need to get, in addition to the Apache tarball, the
>    GNU libtool, autoconf, and m4
>
>    Although I got these, it looks like I don't really need
>    them for Apache 2.2.9; it looks like these come along
>    with the Apache tarball.
>
>    Is this correct?
>
> 2. you need to run buildconf then configure
>
>    but the Apache instructions say you run configure, then make,
>    then make install
>
>    So, is buildconf no longer necessary? Or is it needed
>    for z/OS? (I actually had trouble with running it on
>    z/OS, getting an error message saying I needed python
>    installed.)
>
>
> Now, here's some feedback to the developers: running
> httpd-2.2.9/configure took over five hours!
>
> While I realize I'm running on a weak platform (I'm only
> on a ThinkPad, which runs Linux, which runs flex-es (which
> simulates the z machine instruction set, so very slow, but
> functional), which runs z/OS, it still seems a long time.
>
> I saved and examined the stdout and config.log lines, and
> it seems to me there is a lot of redundancy. It looks like
> configure runs APR configure and other stuff. I see messages
> like "checking size of char" at least two times. Now I see
> that some of the checks can be time consuming. Can't you
> build in some kind of memory, so if a check has been run
> once at one level, it doesn't have to be run again at a
> different level?

http://www.gnu.org/software/autoconf/manual/autoconf-2.57/html_chapter/autoconf_13.html

> It can also use an optional file (typically called `config.cache' and 
> enabled with `--cache-file=config.cache' or simply `-C') that saves 
> the results of its tests to speed up reconfiguring. (Caching is 
> disabled by default to prevent problems with accidental use of stale 
> cache files.) 


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