[Toybox] Warning: gcc can't tell this is never used uninitialized, but llvm can.

[Rob Landley]

On 10/30/18 12:35 PM, Josh Gao wrote:
> On Tue, Oct 30, 2018 at 10:05 AM Rob Landley <rob at landley.net
>
> > (assuming current llvm doesn't barf on the extra flag)
> 
> I have bad news for you:
> $ ./prebuilts/clang/host/linux-x86/clang-r339409b/bin/clang -Wmaybe-initialized
> -x c++ -
> warning: unknown warning option '-Wmaybe-initialized'; did you mean
> '-Wuninitialized'? [-Wunknown-warning-option] 

Which is why it was still on the todo list. Sigh. (Possibly llvm should
greenlight -Wno-* en masse if you're disabling something it doesn't _have_?
Dunno, not my area...)

The downside of leaving cryptic notes-to-self late at night that you don't see
again for months. And I said "current" because the last llvm I checked (2016?)
didn't have it. I remembered "missing" but forgot what specifically was missing
from where. I put it back on this release's todo list because somebody dinged me
on IRC about the x = x assignments on twitter being nonstandard. I want to say
"Rich Felker" since he tends to be the nitpickiest standards rules lawyer I hang
out with online, but it could be anybody at this point...

Rob

P.S. if you -x c++ toybox won't compile anyway. (C is not C++.)