Andres Freund <and...@anarazel.de> writes: > On 2023-03-16 12:10:27 -0400, Tom Lane wrote: >> It wouldn't be entirely surprising if meson is selecting some -W >> switches that the configure script doesn't ... but I don't know >> where to check or change that.
> I think it's just that meson defaults to -O3 (fwiw, I see substantial gains of > that over -O2). I see such warnings with autoconf as well if I make it use > -O3. Oh, interesting. Should we try to standardize the two build systems on the same -O level, and if so which one? To my mind, you should ideally get the identical built bits out of either system, so defaulting to a different -O level seems bad. I'm not sure if we're prepared to go to -O3 by default though, especially for some of the older buildfarm critters where that might be buggy. (I'd imagine you take a hit in gdb-ability too.) regards, tom lane