Description Dimitry Andric 2021-10-02 11:43:51 UTC

During an exp-run for llvm 13 (see bug 258209), it turned out that www/node fails to build with clang 13:

In file included from ../deps/v8/src/heap/cppgc/allocation.cc:5:
../deps/v8/include/cppgc/allocation.h:168:39: error: no member named 'forward' in namespace 'std'
    T* object = ::new (memory) T(std::forward<Args>(args)...);
                                 ~~~~~^
../deps/v8/include/cppgc/allocation.h:168:47: error: 'Args' does not refer to a value
    T* object = ::new (memory) T(std::forward<Args>(args)...);
                                              ^
../deps/v8/include/cppgc/allocation.h:164:25: note: declared here
  template <typename... Args>
                        ^
../deps/v8/include/cppgc/allocation.h:178:39: error: no member named 'forward' in namespace 'std'
    T* object = ::new (memory) T(std::forward<Args>(args)...);
                                 ~~~~~^
../deps/v8/include/cppgc/allocation.h:178:47: error: 'Args' does not refer to a value
    T* object = ::new (memory) T(std::forward<Args>(args)...);
                                              ^
../deps/v8/include/cppgc/allocation.h:173:25: note: declared here
  template <typename... Args>
                        ^
../deps/v8/include/cppgc/allocation.h:206:55: error: no member named 'forward' in namespace 'std'
      MakeGarbageCollectedTrait<T>::Call(handle, std::forward<Args>(args)...);
                                                 ~~~~~^
../deps/v8/include/cppgc/allocation.h:206:63: error: 'Args' does not refer to a value
      MakeGarbageCollectedTrait<T>::Call(handle, std::forward<Args>(args)...);
                                                              ^
../deps/v8/include/cppgc/allocation.h:203:35: note: declared here
template <typename T, typename... Args>
                                  ^
../deps/v8/include/cppgc/allocation.h:225:55: error: no member named 'forward' in namespace 'std'
                                                 std::forward<Args>(args)...);
                                                 ~~~~~^
../deps/v8/include/cppgc/allocation.h:225:63: error: 'Args' does not refer to a value
                                                 std::forward<Args>(args)...);
                                                              ^
../deps/v8/include/cppgc/allocation.h:221:35: note: declared here
template <typename T, typename... Args>
                                  ^
8 errors generated.

This was fixed upstream in v8 with: https://chromium.googlesource.com/v8/v8.git/+/69426180fac5d37643a28887b5e148f844e14ce6 ("cppgc: Fix missing <utility> include").