https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100180
--- Comment #2 from Christophe Lyon <clyon at gcc dot gnu.org> --- On trunk, the error message is: FAIL: experimental/net/internet/address/v6/members.cc (test for excess errors) Excess errors: /aci-gcc-fsf/builds/gcc-fsf-gccsrc/obj-arm-none-eabi/gcc3/arm-none-eabi/thumb/v7ve+simd/hard/libstdc++-v3/include/experimental/io_context:602: error: '__fdvec' is not a member of 'std::experimental::net::v1::io_context::__reactor' /aci-gcc-fsf/builds/gcc-fsf-gccsrc/obj-arm-none-eabi/gcc3/arm-none-eabi/thumb/v7ve+simd/hard/libstdc++-v3/include/experimental/io_context:677: error: 'struct std::experimental::net::v1::io_context::__reactor' has no member named 'wait' /aci-gcc-fsf/builds/gcc-fsf-gccsrc/obj-arm-none-eabi/gcc3/arm-none-eabi/thumb/v7ve+simd/hard/libstdc++-v3/include/experimental/io_context:677: error: '__fds' was not declared in this scope /aci-gcc-fsf/builds/gcc-fsf-gccsrc/obj-arm-none-eabi/gcc3/arm-none-eabi/thumb/v7ve+simd/hard/libstdc++-v3/include/experimental/io_context:679: error: '_S_retry' is not a member of 'std::experimental::net::v1::io_context::__reactor' /aci-gcc-fsf/builds/gcc-fsf-gccsrc/obj-arm-none-eabi/gcc3/arm-none-eabi/thumb/v7ve+simd/hard/libstdc++-v3/include/experimental/io_context:682: error: '_S_timeout' is not a member of 'std::experimental::net::v1::io_context::__reactor' [...]