Compiling JUCE (develop) with clang-15 on Windows in
C++20 mode results in the following warnings:
.../3rd_party/JUCE/modules/juce_core/containers/juce_Variant.cpp:496:43: warning: out-of-line definition of constexpr static data member is redundant in C++17 and is deprecated [-Wdeprecated] constexpr var::VariantType var::Instance::attributesVoid; // Same warning for all attribute definitions (11) // ...
develop branch is on
C++17 now, this should be an easy fix.