Recently, I upgraded to Xcode 15, and with that the update of the xcodebuild tools. However, suddenly, my standalone C++ applications are not able to use the g++-13 compiler for some reason? Anyone knows what might work, I don't want to downgrade to Xcode 14.
From Apple's internal employees, this is the fault of Homebrew, you can either wait for Homebrew to fix it or try other ways to install GNU tools.