Build error on GCC 8.1.2 i386

[glebm]

 [ 60%] Building CXX object _deps/libfmt-build/CMakeFiles/fmt.dir/src/os.cc.o
In file included from /home/runner/work/devilutionX/devilutionX/build/_deps/libfmt-src/src/format.cc:8:0:
/home/runner/work/devilutionX/devilutionX/build/_deps/libfmt-src/include/fmt/format-inl.h: In instantiation of ‘constexpr bool fmt::v8::detail::basic_fp<F>::assign(Float) [with Float = long double; F = fmt::v8::detail::uint128_fallback]’:
/home/runner/work/devilutionX/devilutionX/build/_deps/libfmt-src/include/fmt/format-inl.h:216:69:   required from ‘constexpr fmt::v8::detail::basic_fp<F>::basic_fp(Float) [with Float = long double; F = fmt::v8::detail::uint128_fallback]’
/home/runner/work/devilutionX/devilutionX/build/_deps/libfmt-src/include/fmt/format-inl.h:2212:20:   required from ‘int fmt::v8::detail::format_float(T, int, fmt::v8::detail::float_specs, fmt::v8::detail::buffer<char>&) [with T = long double]’
/home/runner/work/devilutionX/devilutionX/build/_deps/libfmt-src/src/format.cc:92:64:   required from here
/home/runner/work/devilutionX/devilutionX/build/_deps/libfmt-src/include/fmt/format-inl.h:238:9: error: no match for ‘operator+=’ (operand types are ‘fmt::v8::detail::uint128_fallback’ and ‘fmt::v8::detail::uint128_fallback’)
       f += static_cast<F>(implicit_bit);
       ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /home/runner/work/devilutionX/devilutionX/build/_deps/libfmt-src/include/fmt/format-inl.h:29:0,
                 from /home/runner/work/devilutionX/devilutionX/build/_deps/libfmt-src/src/format.cc:8:
/home/runner/work/devilutionX/devilutionX/build/_deps/libfmt-src/include/fmt/format.h:367:22: note: candidate: constexpr void fmt::v8::detail::uint128_fallback::operator+=(uint64_t)
   FMT_CONSTEXPR void operator+=(uint64_t n) {
                      ^~~~~~~~
/home/runner/work/devilutionX/devilutionX/build/_deps/libfmt-src/include/fmt/format.h:367:22: note:   no known conversion for argument 1 from ‘fmt::v8::detail::uint128_fallback’ to ‘uint64_t {aka long long unsigned int}’

Similar to #2810 but the error is different

Full build log https://github.com/diasurgical/devilutionX/runs/5703028971?check_suite_focus=true

[vitaut]

Fixed in 9693016. Thanks for reporting.

[glebm]

Thanks!