Re: GDB 8.1 build error

Pedro Alves
2018-04-27T20:00:58Z

On 04/27/2018 08:18 PM, Simon Marchi wrote:
> On 2018-04-27 15:08, Pedro Alves wrote:
>> Oh, wait....Â  Your build line has no "-W" at all, it has "-w" instead??
>> How did that happen?
>
> When --disable-build-warnings is used, we don't put any -W/-Wno- flags:
>
> https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;a=blob;f=gdb/warning.m4;h=f176a3291aa68acf0122609531abb4652425525b;hb=HEAD#l62

But then, we add "-w", and I'm surprised that "-w" did not disable
all warnings, including "-Wc++11-narrowing". "-w" is supposed to mean
disable all warnings. At least, that's how GCC behaves.
Could that be a clang bug?

Thanks,
Pedro Alves