Hi all, Commit d6453cfc3cd4771a5221528cab3056660be4b1e3 (PR # 8244) changes the default CXX_STANDARD for libxx to gnu++20 to make llvm libcxx 15.0.7 happy.
Unfortunately this makes GCC versions < 10.3 fail with something like: arm-none-eabi-g++: error: unrecognized command line option '-std=gnu++20'; did you mean '-std=gnu++2a'? And (as you can see in the PR discussions) on some host OSes (including mine) it isn't convenient to install a newer GCC. In commit 4e93f93f303a85e04bdd7e4da22df028c0f76de3, the documentation is updated to tell us that we need to update GCC to 10.3. The ---help--- for Kconfig CXX_STANDARD lists possible values: gnu++98/c++98, gnu++11/c++11, gnu++14/c++14, gnu++17/c++17 and gnu++20/c++20. Is it possible to add gnu++2a to that list, so that people with old(er) host OSes (like me) can continue? Thanks, Nathan
