Comment 2 for bug 1610220

$ echo '#include <atomic>' > foo.h

$ gcc-6 -std=c++11 -fdump-translation-unit -fkeep-inline-functions -c -x c++-header -fpermissive -w -fPIC foo.h
In file included from /usr/include/c++/6/atomic:41:0,
                 from foo.h:1:
/usr/include/c++/6/bits/atomic_base.h: In member function 'std::atomic<bool>::operator bool() const':
/usr/include/c++/6/bits/atomic_base.h:390:7: error: inlining failed in call to always_inline 'std::__atomic_base<_IntTp>::__int_type std::__atomic_base<_IntTp>::load(std::memory_order) const noexcept [with _ITp = bool; std::__atomic_base<_IntTp>::__int_type = bool; std::memory_order = std::memory_order]': function body not available
       load(memory_order __m = memory_order_seq_cst) const noexcept
       ^~~~
In file included from foo.h:1:0:
/usr/include/c++/6/atomic:81:27: note: called from here
     { return _M_base.load(); }
                           ^

$ gcc-5 -std=c++11 -fdump-translation-unit -fkeep-inline-functions -c -x c++-header -fpermissive -w -fPIC foo.h