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From: Peter Eisentraut <[email protected]>
To: Bertrand Drouvot <[email protected]>
Cc: [email protected]
Subject: Re: Enable -Wstrict-prototypes and -Wold-style-definition by default
Date: Fri, 27 Mar 2026 13:15:29 +0100
Message-ID: <[email protected]> (raw)
In-Reply-To: <acZW7FB/[email protected]>
References: <aa73q1aT0A3/vke/@ip-10-97-1-34.eu-west-3.compute.internal>
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On 27.03.26 11:07, Bertrand Drouvot wrote:
> That looks ok but I wonder if we should also add '-Werror=vla' to it (
> and remove it from common_warning_flags) to be in sync with what configure.ac
> is doing:
> 
> "
>    PGAC_PROG_CC_CFLAGS_OPT([-Werror=vla])
>    # -Wvla is not applicable for C++
> "

Hmm.  This comment is not actually fully correct.  With g++, you can 
write a VLA and it will work, and also -Wvla will warn about it.  So we 
should actually add that option to C++ as well.  (It is true that VLAs 
are not in standard C++, and g++ with -pedantic will also warn about it.)

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