[oe] [meta-oe][PATCH] protobuf: Fix ptest compilation

[Adrian Bunk]

On Thu, May 16, 2019 at 08:57:04AM +0000, Oleksiy Obitotskyi -X (oobitots - GLOBALLOGIC INC at Cisco) via Openembedded-devel wrote:
> Tests require c++11 support, so add -std=c++11
> to compiler flags.
>...

What compiler are you using to compile for your target?

The description sounds as if it would be gcc < 6.

cu
Adrian

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