https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98139
--- Comment #4 from ro at CeBiTec dot Uni-Bielefeld.DE <ro at CeBiTec dot Uni-Bielefeld.DE> --- > --- Comment #2 from David Edelsohn <dje at gcc dot gnu.org> --- > I bootstrap GCC on AIX with, and the instructions in the CompileFarm wiki > recommend, --disable-werror. Ah, I missed that. It's the only instance of target-specific build instructions in the Wiki. Shouldn't this go to install.texi, too, unless it's expected to be fixed before GCC 11? > If that currently is the only problem, we're lucky. I don't know that this > hack is better. Shrug. I only tested C,C++, but a couple of months ago I tried with Ada included and didn't have the issue at all (expect for PR ada/95549). The big advantage of doing it automatically (either similarly to my hack, variations of which have been used in the past when target macros ignore one or more of their args, or by enabling --disable-werror by default for AIX) is that you avoid wasted time: every time a developer runs into this, he either starts to hunt down the issue (when she's diligent) or moves on in disgust (the majority, I guess).