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Sender: Joe Lewis <jlewis@silverhawk.net>
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Date: Thu, 21 Jun 2012 18:27:09 -0600
From: Joe Lewis <joe@joe-lewis.com>
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Subject: Re: SOLVED was Re: How to compiling/link/use Apache module that uses
 shared library?
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On 6/21/12 5:49 PM, ohaya@cox.net wrote:
> ---- ohaya@cox.net wrote:
>> ---- Sorin Manolache<sorinm@gmail.com>  wrote:
>>> And I forgot to say: run gdb in some sort of environment where you see
>>> your current source code line and a couple of surrounding lines. You
>>> could achieve this with the "list" command, but I prefer running gdb in
>>> emacs and let emacs do the nice listing of source code in a different panel.
>>>
>>> S
>>
>> Here's the function from my source.  It's the original from mod_headers.c, plus my printf:
>>
>>
>> static int header_post_config(apr_pool_t *pconf, apr_pool_t *plog,
>>                                apr_pool_t *ptemp, server_rec *s)
>> {
>>      printf("In header_post_config\n");
>>      header_ssl_lookup = APR_RETRIEVE_OPTIONAL_FN(ssl_var_lookup);
>>      return OK;
>> }
>>
>> Jim
>
> Hi,
>
> I was able to get the segfault to go away.  Here's what I had to do:
>
> - Created /etc/ld.so.conf.d/my.conf, and added the directory where my libobaccess.so was
> - Run 'ldconfig' to activate.
> - In the apxs command, DON'T include the -L and -l arguments
>
> After that, Apache appears to start ok, without segfault :)!!
>
> Thanks for all of the great help, esp. the suggestion about checking "ldconfig -p".  I still don't understand why, but I'm just glad that I can get past this piece so now I can debug my module :)...
>
> Later,
> Jim
I'm just glad this list is as good as it is!

FYI, the ldconfig is the dynamic linker control, and those 
/etc/ld.so.conf.d files provide additional search directories for the 
linker to check in when loading a library.

Joe
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