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Date:   Thu, 18 Mar 2021 13:38:41 +0000
From:   David Laight <David.Laight@...LAB.COM>
To:     'Valdis Klētnieks' 
CC:     Kees Cook <>,
        Josh Poimboeuf <>,
        Geert Uytterhoeven <>,
        "" <>,
        Linux Kernel Mailing List <>
Subject: RE: [PATCH RESEND] gcc-plugins: avoid errors with -std=gnu++11 on old

From: Valdis Kletnieks
> Sent: 18 March 2021 11:56
> On Thu, 18 Mar 2021 11:41:29 -0000, David Laight said:
> > That gcc bug just implies you need a space after "xxx".
> > That is easily fixable in the sources.
> It's not quite that simple.
>    In file included from /usr/lib/gcc/x86_64-linux-gnu/5/plugin/include/tm.h:27,
>                     from /usr/lib/gcc/x86_64-linux-gnu/5/plugin/include/gcc-plugin.h:31,
>                     from /usr/lib/gcc/x86_64-linux-gnu/5/plugin/include/plugin.h:23,
>                     from scripts/gcc-plugins/gcc-common.h:9,
>                     from scripts/gcc-plugins/latent_entropy_plugin.c:78:
> >> /usr/lib/gcc/x86_64-linux-gnu/5/plugin/include/config/elfos.h:102:21: warning: invalid suffix on
> literal; C++11 requires a space between literal and string macro [-Wliteral-suffix]
>        fprintf ((FILE), "%s"HOST_WIDE_INT_PRINT_UNSIGNED"\n",\
> The problem isn't in a kernel source file...  

Could you pass -Wno-literal-suffix on plugin builds?

Might be less faff than changing the -std=xxx' parameter.


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