Hi Mat,

 >>
>> Can you do me a favor and split these into three patches, according to
>> HACKING 'Submitting Patches'.
>
> What do you know, "patches should be split even if breaking compilation
> is unavoidable". Curious about why this is (I'm not lobbying for a
> change, it's just not self-evident).
>

We hardly ever use git bisect, so readability of commits trumps the 
breaking of compilation.

>>
>> I wonder if returning bool here is useful since you never check the
>> return value in any of the actual files that use this.
>
> All of the unit tests and examples exit out of main immediately after
> calling l_main_exit, but that may not be the case for every program.
> l_main_exit will do nothing if the main loop is still running.
>
> l_main_run and l_main_quit's return values are similarly ignored, but
> are potentially useful in a similar way.
>

Fair enough, just curious.  Some like to use void *_exit functions 
because you can't do anything if stuff fails anyway.  I've had this 
argument with myself many times and don't really have a preference.

Regards,
-Denis