Re: [PATCH] Fix -Wsystem-header warnings in libstdc++

[Jonathan Wakely <jwakely at redhat dot com>]

On 04/12/17 23:07 +0000, Jonathan Wakely wrote:
> On 01/12/17 16:10 +0000, Jonathan Wakely wrote:
> > On 01/12/17 15:11 +0000, Jonathan Wakely wrote:
> > > This fixes a number of warnings that show up with -Wsystem-headers
> >
> > This fixes some more.
>
> And some more, this time for -Wunused, -Wcomment, and
> -Wvariadic-macros.
>
> Tested powerpc64le-linux, committed to trunk.
>
> The purpose of these is not only to reduce noise if users use
> -Wsystem-headers, but to get us to a place where PR 50871 can be fixed
> (i.e. build and test libstdc++ without having useful warnings
> suppressed by the #pragma GCC system_header lines).

This warning remains:

/home/jwakely/gcc/8/include/c++/8.0.0/bits/valarray_array.h:56:12: warning: type qualifiers ignored on function return type [-Wignored-qualifiers]
    inline _Tp*__restrict__
           ^~~

I think we can just remove the __restrict__.