On 21/11/20 16:16 +0100, Andreas Schwab wrote:
>In file included from /daten/aranym/gcc/gcc-20201121/Build/m68k-linux/libstdc++-v3/include/bits/shared_ptr_atomic.h:33,
>                 from /daten/aranym/gcc/gcc-20201121/Build/m68k-linux/libstdc++-v3/include/memory:78,
>                 from /daten/aranym/gcc/gcc-20201121/Build/m68k-linux/libstdc++-v3/include/m68k-linux/bits/stdc++.h:82,
>                 from /daten/aranym/gcc/gcc-20201121/Build/m68k-linux/libstdc++-v3/include/m68k-linux/bits/extc++.h:32,
>                 from /daten/aranym/gcc/gcc-20201121/libstdc++-v3/testsuite/17_intro/headers/c++2020/all_attributes.cc:37:
>/daten/aranym/gcc/gcc-20201121/Build/m68k-linux/libstdc++-v3/include/bits/atomic_base.h: In member function 'void std::atomic_flag::wait(bool, std::memory_order) const':
>/daten/aranym/gcc/gcc-20201121/Build/m68k-linux/libstdc++-v3/include/bits/atomic_base.h:239: error: no matching function for call to '__atomic_wait(const __atomic_flag_data_type*, bool&, std::atomic_flag::wait(bool, std::memory_order) const::<lambda()>)'
>In file included from /daten/aranym/gcc/gcc-20201121/Build/m68k-linux/libstdc++-v3/include/bits/atomic_base.h:41,
>                 from /daten/aranym/gcc/gcc-20201121/Build/m68k-linux/libstdc++-v3/include/bits/shared_ptr_atomic.h:33,
>                 from /daten/aranym/gcc/gcc-20201121/Build/m68k-linux/libstdc++-v3/include/memory:78,
>                 from /daten/aranym/gcc/gcc-20201121/Build/m68k-linux/libstdc++-v3/include/m68k-linux/bits/stdc++.h:82,
>                 from /daten/aranym/gcc/gcc-20201121/Build/m68k-linux/libstdc++-v3/include/m68k-linux/bits/extc++.h:32,
>                 from /daten/aranym/gcc/gcc-20201121/libstdc++-v3/testsuite/17_intro/headers/c++2020/all_attributes.cc:37:
>/daten/aranym/gcc/gcc-20201121/Build/m68k-linux/libstdc++-v3/include/bits/atomic_wait.h:265: note: candidate: 'template<class _Tp, class _Pred> void std::__atomic_wait(const _Tp*, _Tp, _Pred)'
>/daten/aranym/gcc/gcc-20201121/Build/m68k-linux/libstdc++-v3/include/bits/atomic_wait.h:265: note:   template argument deduction/substitution failed:
>In file included from /daten/aranym/gcc/gcc-20201121/Build/m68k-linux/libstdc++-v3/include/bits/shared_ptr_atomic.h:33,
>                 from /daten/aranym/gcc/gcc-20201121/Build/m68k-linux/libstdc++-v3/include/memory:78,
>                 from /daten/aranym/gcc/gcc-20201121/Build/m68k-linux/libstdc++-v3/include/m68k-linux/bits/stdc++.h:82,
>                 from /daten/aranym/gcc/gcc-20201121/Build/m68k-linux/libstdc++-v3/include/m68k-linux/bits/extc++.h:32,
>                 from /daten/aranym/gcc/gcc-20201121/libstdc++-v3/testsuite/17_intro/headers/c++2020/all_attributes.cc:37:
>/daten/aranym/gcc/gcc-20201121/Build/m68k-linux/libstdc++-v3/include/bits/atomic_base.h:239: note:   deduced conflicting types for parameter '_Tp' ('unsigned char' and 'bool')

I'm testing this.