Re: [PATCH] lib-httpd/apache.conf: check version only after mod_version loads

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Jeff King <peff@xxxxxxxx> writes:

> Cool. I think the patch should look like the one below, then.
>
> Just to double-check that I have explained the issue correctly, can you
> share the output of "apache2 -l"? Mine has:
>
>   $ apache2 -l
>   Compiled in modules:
>     core.c
>     mod_log_config.c
>     mod_logio.c
>     mod_version.c
>     prefork.c
>     http_core.c
>     mod_so.c
>
> which explains why it works here. I'm assuming you will not have
> mod_version.c compiled in.
>
> -- >8 --
> Subject: lib-httpd/apache.conf: check version only after mod_version loads
>
> Commit 0442743 introduced an <IfVersion> directive near the
> top of the apache config file. However, at that point we
> have not yet checked for and loaded the mod_version module.
> This means that the directive will behave oddly if
> mod_version is dynamically loaded, failing to match when it
> should.
>
> We can fix this by moving the whole block below the
> LoadModule directive for mod_version.
>
> Reported-by: Brian Gernhardt <brian@xxxxxxxxxxxxxxxxxxxxx>
> Signed-off-by: Jeff King <peff@xxxxxxxx>
> ---
>  t/lib-httpd/apache.conf | 7 ++++---
>  1 file changed, 4 insertions(+), 3 deletions(-)
>
> diff --git a/t/lib-httpd/apache.conf b/t/lib-httpd/apache.conf
> index 56ae548..dd17e3a 100644
> --- a/t/lib-httpd/apache.conf
> +++ b/t/lib-httpd/apache.conf
> @@ -1,7 +1,4 @@ ServerName dummy
>  ServerName dummy
> -<IfVersion < 2.4>
> -LockFile accept.lock
> -</IfVersion>
>  PidFile httpd.pid
>  DocumentRoot www
>  LogFormat "%h %l %u %t \"%r\" %>s %b" common
> @@ -26,6 +23,10 @@ ErrorLog error.log
>  	LoadModule version_module modules/mod_version.so
>  </IfModule>
>  
> +<IfVersion < 2.4>
> +LockFile accept.lock
> +</IfVersion>
> +

Once you see it in the patch form, it is very clear what this change
does and why it is necessary in the context ;-)

Thanks, both of you, for digging this down to the root cause; you
guys have done before it graduates to 'master', which I especially
appreciate.

Will queue.
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