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Re: [Qemu-ppc] [Qemu-devel] [PATCH v3 2/2] configure: Force the C standa

From: Richard Henderson
Subject: Re: [Qemu-ppc] [Qemu-devel] [PATCH v3 2/2] configure: Force the C standard to gnu99
Date: Thu, 10 Jan 2019 08:23:41 +1100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.3.1

On 1/10/19 3:39 AM, Thomas Huth wrote:
> Different versions of GCC and Clang use different versions of the C standard.
> This repeatedly caused problems already, e.g. with duplicated typedefs:
>  https://lists.gnu.org/archive/html/qemu-devel/2018-11/msg05829.html
> or with for-loop variable initializers:
>  https://lists.gnu.org/archive/html/qemu-devel/2019-01/msg00237.html
> To avoid these problems, we should enforce the C language version to the
> same level for all compilers. Since our minimum compiler versions is
> GCC v4.8, our best option is "gnu99" for C code right now ("gnu17" is not
> available there yet, and "gnu11" is marked as "experimental"), and "gnu++98"
> for the few C++ code that we have in the repository.
> Signed-off-by: Thomas Huth <address@hidden>
> ---
>  v3: Compile C++ code with -std=gnu++98

Reviewed-by: Richard Henderson <address@hidden>


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