Re: [HACKERS] Sun performance - Major discovery!

Tom Lane wrote:
> Neil Conway <neilc(at)samurai(dot)com> writes:
> > On Wed, 2003-10-08 at 14:31, Bruce Momjian wrote:
> >> Well, this is really embarassing. I can't imagine why we would not set
> >> at least -O on all platforms.
>
> I believe that autoconf will automatically select -O2 (when CFLAGS isn't
> already set) *if* it's chosen gcc. It won't select anything for vendor
> ccs.
>
> > Can we get these optimizations enabled in time for the next 7.4 beta?
>
> I think it's too late in the beta cycle to add optimization flags except
> for platforms we can get specific success results for. (Solaris is
> probably okay for instance.) The risk of breaking things seems too
> high.

OK, patch attached and applied. It centralizes the optimization
defaults into configure.in, rather than having CFLAGS= in the template
files.

It used -O2 for gcc (generated automatically by autoconf), and -O for
non-gcc, unless the template overrides it.

--
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