From mboxrd@z Thu Jan  1 00:00:00 1970
From: Thomas Monjalon <thomas@monjalon.net>
Subject: Re: [PATCH] eal/x86: fix pedantic build
Date: Thu, 04 Apr 2019 15:22:18 +0200
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References: <20190404130009.22042-1-thomas@monjalon.net>
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Cc: gage.eads@intel.com, Bruce Richardson <bruce.richardson@intel.com>,
 Konstantin Ananyev <konstantin.ananyev@intel.com>,
 Ferruh Yigit <ferruh.yigit@intel.com>, david.marchand@redhat.com,
 alialnu@mellanox.com
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04/04/2019 15:00, Thomas Monjalon:
> When enabling pedantic compilation with CONFIG_RTE_LIBRTE_MLX5_DEBUG,
> the compiler complains about non standard 128-bit integer type:
>=20
> include/rte_atomic_64.h:223:3: error:
> ISO C does not support =E2=80=98__int128=E2=80=99 types [-Werror=3Dpedant=
ic]
>=20
> It must be marked as an extension of the standard C language
> to be accepted in pedantic compilation.
>=20
> Reported-by: Ferruh Yigit <ferruh.yigit@intel.com>
> Signed-off-by: Thomas Monjalon <thomas@monjalon.net>

=46orgot one line:

=46ixes: 640c5f09ef2c ("eal/x86: add 128-bit atomic compare exchange")

Note: It seems only Ferruh can reproduce it.
I wonder whether the RTE_STD_C11 of the union is hiding the issue.