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From: Fernando Oleo Blanco <irvise_ml@irvise.xyz>
Newsgroups: comp.lang.ada
Subject: Re: Help: Ada in NetBSD
Date: Sun, 29 Aug 2021 22:36:41 +0200
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On 29.08.21 20:25, Simon Wright wrote:
> The problem can't be fixed by including C headers, because ...
> 
>>> For gettimeofday the symbol is replaced by __gettimeofday50.
>>> These symbols are marked with __RENAME(XXX) macros in the C headers.
> 
> The C header is (I got this from the net, so beware)
> 
> int	gettimeofday(struct timeval * __restrict, void *__restrict)
>      __RENAME(__gettimeofday50);

That is correct. I do not know exactly how the __RENAME() statement 
works, however, I can take a guess. The symbol gettimeofday should still 
be defined and just call the __RENAME directly. The NetBSD people cannot 
expect everybody to rename their functions just for them. There are very 
many more functions that are also __RENAME d

> The Ada needs to change to
> 
>     function gettimeofday
>       (tv : not null access struct_timeval;
>        tz : struct_timezone_ptr) return Integer;
>     pragma Import (C, gettimeofday, "gettimeofday50");
> 
> (or maybe "_gettimeofday50", or even "__gettimeofday50" - nm will be
> your friend).

This is exactly what I want to avoid. I took a look at FreeBSD's libc 
and glibc. None __RENAME their functions (at the very least the ones I 
am interested)... I need to interrogate some developers in IRC.

I will update the thread if I find anything relevant.

Regards,
-- 
Fernando Oleo Blanco
https://irvise.xyz