Comments (2)
I understand the error message in the way that the compiler does not recognize the [[maybe_unused]]
attribute, which is a C++17 feature. GCC is C++17 feature complete since version 8. This means your compiler GCC 8.5 should support [[maybe_unused]]
. Though, GCC 8.5 uses C++14 by default. Thus I suspect that the compiler does not see the -std=c++17
option.
Can you please double check your Makefiles?
What happens if you add
#if __cplusplus < 201703L
#error "C++17 or better required\n"
#endif
to your sources?
from mpl.
Thank you, the Makefile was fine and the issue is resolved, thank you for your help.
from mpl.
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