Don't try to to build path from empty dependency string for a VPC Makefile dependency Cupertino: Cleanup source_posix_base, update SDK versions and build settings for macOS, just use latest SDK version, target Sonoma, don't use 10 year old tools for cc chmod +x on vpc_script bash scripts Cupertino: ISO C++20 Fixes Update .gitignore and build scripts, fix permission on antlr, some small code fixes