GCC Developer Discovers "Our Codebase Isn't Fully C++20 Ready"
([GNU] 16 November 06:25 AM EST
C++20 Porting Patches)
Following the recent idea floated to consider C++20 as the default C++ language dialect by the GCC compiler rather than C++17, it was discovered that the GNU Compiler Collection itself has problems building in C++20 model.