Re: Alpha test

Tom Lane wrote:
> Alvaro Herrera <alvherre@dcc.uchile.cl> writes:
> > On Mon, Dec 22, 2003 at 06:36:32PM -0500, Bruce Momjian wrote:
> >> Seems we have to test for __alpha and __alpha_.  This applied patch
> >> makes that consistent.
>
> > Won't something like the following work?
>
> > #ifdef(__alpha)
> > #define __alpha__ 1
> > #endif
>
> It seems risky to me to define macros that are in the
> reserved-for-system-use namespace.  Who knows what might break in the
> system headers if we did that?
>
> I'm not convinced that all of the changes Bruce made are needed, or even
> not likely to break things themselves.  What if __alpha and __alpha__
> actually indicate slightly different platforms or OS releases?  For
> example, we have *no* evidence to suggest that that NOFIXADE stuff in
> main.c is needed on platforms that don't define __alpha.  I would tend
> to take an "if it ain't broke don't fix it" approach, especially on
> platforms we don't have handy to test.

The problem was that certain cases tested for __alpha__ and some
__alpha --- same with __sparc.

I think I might have gotten started with the these spinlock changes
because of an __alpha fix.  I also verified with an alpha guy that we
need both in most cases, if not all.  I remember trying to go with
__alpha__ and finding someone couldn't compile alpha after that.

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