linux-kernel - Re: [PATCH] gcc-plugins: fix gcc 11 indigestion with plugins...

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Message-ID: <122278.1610362619@turing-police>
Date:   Mon, 11 Jan 2021 05:56:59 -0500
From:   "Valdis Klētnieks" <valdis.kletnieks@...edu>
To:     Geert Uytterhoeven <geert@...ux-m68k.org>
Cc:     Kees Cook <keescook@...omium.org>, linux-hardening@...r.kernel.org,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Josh Poimboeuf <jpoimboe@...hat.com>
Subject: Re: [PATCH] gcc-plugins: fix gcc 11 indigestion with plugins...

On Mon, 11 Jan 2021 10:47:23 +0100, Geert Uytterhoeven said:

> I guess this is the cause of the new "warning: invalid suffix on
> literal; C++11 requires a space between literal and string macro
> [-Wliteral-suffix]" with gcc 4.9 or 5.4?

Well, we fixed a #error, and picked up a warning.  That's progress. ;)

It's probably related. I'm just having a hard time understanding why 4.9 and 5.4
whine about the lack of a space, while 8.3 and 11 didn't complain...

I'll see if I can cook up a patch that newer gcc are still happy with.  You able
to easily test with 4.9 or 5.4?

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