I'm working on a PPC build of httpd 2.2.4 on an Intel Mac. I'm
doing this because I need Oracle support built into mod_php; because
Oracle has only released PPC libraries, I have to compile
PPC-only apps if I want to use them. I have a working httpd/php combo
and now I'm trying to add mod_rewrite to the mix. I can get mod_rewrite
to work if I totally disable logging at compiletime, but if logging is
allowed httpd will not start.
Here is a bit of history: httpd compiles after configuring like this:
$ CPPFLAGS="-arch ppc" LDFLAGS="-arch ppc" ./configure
--build=ppc-apple-darwin8.10.2
but it won't start. The error log showed messages like this:
[emerg] (14)Bad address: Couldn't set permissions on
cross-process lock; check User and Group directives
The problem is a bad default AcceptMutex setting (sysvsem; pthread also
fails; flock, fcntl and posixsem all work fine). Thanks to Vincent Bray
to putting me on the track to figuring out that problem.
Building mod_rewrite with apxs like this:
sudo /usr/local/apache2-ppc/bin/apxs -Wc,"-arch ppc"
-Wl,"-arch ppc" -i -a -c mod_rewrite.c
works but gives a similar error when trying to start httpd:
[crit] (14)Bad address: mod_rewrite: Could not set permissions
on rewrite_log_lock; check User and Group directives
Configuration Failed
This error comes from a block near line 4048 of mod_rewrite.c. It's in a
double-nested ifdef-block:
#ifndef REWRITELOG_DISABLED
...
#ifdef AP_NEED_SET_MUTEX_PERMS
The second ifdef, defined in defined in os/unix/os.h, is kinda
suspicious given the AcceptMutex issue I originally faced. I tried
moving the AcceptMutex directive before the "LoadModule rewrite_module
modules/mod_rewrite.so" directive, I tried all the different AcceptMutex
options, and I tried building mod_rewrite statically into the httpd
binary; none work.
Happily, the comments for the REWRITELOG_DISABLED constant (see line 101
of mod_rewrite.c) note that you can totally disable logging at
compiletime (compile with -DREWRITELOG_DISABLED), which sidesteps the
problem by totally skipping this block. But it doesn't really solve the
problem, and it would be kinda nice to have logging available.
Does anybody have any hints on how I might proceed?
Thanks,
zak.
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