[ST-devel] Re: ST darwin support

[Wesley W. T. <we...@te...>]

On Tue, Jan 29, 2002 at 06:37:03PM -0800, Gene Shekhtman wrote:
> I wonder if DARWIN can be combined with OPENBSD in md.h.
> Something like that:
>
> #elif defined (OPENBSD) || defined (DARWIN)
> 
> ....
> 
> #if defined(__i386__)
> #define MD_JB_SP   2
> #elif defined(__alpha__)
> #define MD_JB_SP  34
> #elif defined(__ppc__)
> #define MD_JB_SP   0
> #else
> #error Unknown CPU architecture
> #endif
> 
> Unfortunately, I don't have OpenBSD on PPC to test it.

I tried exactly that when I first made the patch - it does work.

However, there is a few reasons I choose not to do that: 

-- What if OpenBSD runs on a ppc at some point? 
	This will probably mess up - 0 will not be right.
	Just look at AIX; it uses 3 for the same CPU.

-- Conversely, Darwin already does run on i386.
	I have no idea what MD_JP_SP to use there though.
	However, I doubt it's safe to assume it's 2.

On the other hand, if someone who runs darwin/i386 tries it and finds that
the value is 2, then merging them is probably smart.

PS. The thing that really annoys me is the poll.h problem. (!!)

-- 
Wesley W. Terpstra <we...@te...>