Re: [AD] alternate entry point for allegro programs

[Peter Wang <tjaden@xxxxxxxxxx>]

Evert Glebbeek wrote:

> > Apart from providing a bit of djgpp emulation,
> >    
>
> Could you be more specific? Are the __crt0_argc and __crt0_argv variables 
> used for anything else?
>  

No, they're not.  My guess is that Michael just needed to name those 
variable somehow, so he thought  "Some compatibility with DJGPP wouldn't 
hurt." (see udjgpp.c).

> Considering that using argv[0] can be unreliable at any rate, using this if 
> proc fs is available may not be a bad idea anyway (this can be done using 
> a configure check at compile time, I guess...).
> I think I'll go ahead and prepare a patch for that regardless.
>  

Great!

> The question arises what to do when proc fs is not available though. 
> Generally, programs in a UNIX environment should not care from where they 
> are executed. Considering that there is no portable reliable way to get 
> the name of the executable, I'd vote to leave the return value blank for 
> such systems, or return the current working directory instead.
>  

I agree.  The documentation would then contain a disclaimer saying that 
the results might not be reliable.

> Oh, and if we can get of END_OF_MAIN, then yes, by all means, let's do it!
>  

Well, I don't think we'll be getting rid of END_OF_MAIN itself, but some 
of the related hacks (notably #define main _mangled_main).

Peter