GDB 8.1 build error

Pedro Alves palves@redhat.com
Fri Apr 27 20:16:00 GMT 2018


On 04/27/2018 08:18 PM, Simon Marchi wrote:
> On 2018-04-27 15:08, Pedro Alves wrote:
>> Oh, wait....  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



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