Re: Raising our compiler requirements for 9.6

On 2015-08-05 10:23:31 -0400, Tom Lane wrote:
> Andres Freund <andres(at)anarazel(dot)de> writes:
> > How about moving that error check into into the aix template file and
> > erroring out there? Since this is master I think it's perfectly fine to
> > refuse to work with the buggy unsupported 32 bit compiler. The argument
> > not to do so was that PG previously worked in the back branches
> > depending on the minor version, but that's not an argument on master.
>
> The check as Noah wrote it rejects *all* 32-bit IBM compilers, not just
> buggy ones. That was okay when the effect was only a rather minor
> performance loss, but refusing to build at all would raise the stakes
> quite a lot. Unless you are volunteering to find out how to tell broken
> compilers from fixed ones more accurately, I think you need to confine
> the effects of the check to disabling inlining.

Wasn't the point that 32 bit AIX as a whole hasn't been supported for a
couple years now? My willingness to expend effort for that is rather
limited.

I mean I'd otherwise ok with a PG_FORCE_DISABLE_INLINE flag that takes
effect in c.h or so. That could easily be set in src/template/aix. Might
also be useful for investigatory purposes every couple years or so.

Andres