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Date:   Tue, 5 Jan 2021 09:26:36 -0600
From:   Josh Poimboeuf <jpoimboe@...hat.com>
To:     Valdis Klētnieks <valdis.kletnieks@...edu>
Cc:     Kees Cook <keescook@...omium.org>, linux-hardening@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] gcc-plugins:  fix gcc 11 indigestion with plugins...

On Sat, Dec 26, 2020 at 01:21:58PM -0500, Valdis Klētnieks wrote:
> Fedora Rawhide has started including gcc 11,and the g++ compiler
> throws a wobbly when it hits scripts/gcc-plugins:
> 
>   HOSTCXX scripts/gcc-plugins/latent_entropy_plugin.so
> In file included from /usr/include/c++/11/type_traits:35,
>                  from /usr/lib/gcc/x86_64-redhat-linux/11/plugin/include/system.h:244,
>                  from /usr/lib/gcc/x86_64-redhat-linux/11/plugin/include/gcc-plugin.h:28,
>                  from scripts/gcc-plugins/gcc-common.h:7,
>                  from scripts/gcc-plugins/latent_entropy_plugin.c:78:
> /usr/include/c++/11/bits/c++0x_warning.h:32:2: error: #error This file requires compiler and library support for the ISO
>  C++ 2011 standard. This support must be enabled with the -std=c++11 or -std=gnu++11 compiler options.
>    32 | #error This file requires compiler and library support \
> 
> In fact, it works just fine with c++11, which has been in gcc since 4.8,
> and we now require 4.9 as a minimum.
> 
> Signed-off-by: Valdis Kletnieks <valdis.kletnieks@...edu>

I'm also needing this.

Acked-by: Josh Poimboeuf <jpoimboe@...hat.com>

-- 
Josh

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