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

[Sebastian Huber]

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?

-- 
Sebastian Huber, embedded brains GmbH

Address : Dornierstr. 4, D-82178 Puchheim, Germany
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