How to add -std=gnu++11 to CXXFLAGS?

Sebastian Huber sebastian.huber at
Mon Jun 30 08:38:20 UTC 2014

On 2014-06-26 12:50, Sebastian Huber wrote:
> Hello,
> for SMP support we need atomic operations.  We use the ones provided by the C11
> and C++11 standards.  For this it is necessary to use -std=gnu++11 as a GCC
> option since otherwise an include of <atomic> yields to compile time errors.
> Does anyone know how to add this option to the CXXFLAGS in our build system?

With this change

we have now a compile time error with C++ and SMP enabled for GCC 4.9 and later 
unless we manage to add -std=gnu++11 to the CXXFLAGS.

Sebastian Huber, embedded brains GmbH

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