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From Joe Orton <jor...@redhat.com>
Subject Re: [PATCH] Move 'acceptable' check inside find m4s
Date Sun, 11 Dec 2005 19:29:09 GMT
On Sat, Dec 10, 2005 at 03:33:57PM -0800, Justin Erenkrantz wrote:
> Colm and I made the following change to allow a program to define an
> 'acceptability' check when we're searching for APR.  For httpd, this is
> useful to skip APR 1.1 installs when we really just want 1.2 installs;
> rather than doing that sub-version check after we found an acceptable
> version.
> 
> Anyone see any improvements we can make to this?
> 
> Otherwise, I'll commit this and its related apr-util changes in the next
> day or so.

Doing the version check using APACHE_CHECK_APxVER that early doesn't 
work, it breaks like PR 37283.  I don't entirely undestand why but 
APACHE_CHECK_APxVER could be written to use `ap*-config --version` 
instead of CPP checks to avoid that, probably.

In concept I'm not convinced this is a good idea anyway.  

Say I have APR version X installed in standard prefix /usr/local/apr, 
and a bunch of applications built which link against that.  When I go to 
upgrade any of those applications, I want the app to either continue 
using that standard system APR or fail to build and tell me if I have to 
upgrade to APR version Y instead.  I don't want each app to instead 
install its own bundled copy of APR and end up with N different APR 
installs in different prefixes.

(this is particularly important when these apps may be interlinked as in 
httpd/Subversion via mod_dav_svn)

joe

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