bash-5.2$ which gcc
/usr/bin/gcc
bash-5.2$ g++-15 --version
g++-15 (Homebrew GCC 15.1.0) 15.1.0
Copyright (C) 2025 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
bash-5.2$ CXX=g++-15 cmake --preset gcc-release --fresh
-- The CXX compiler identification is AppleClang 16.0.0.16000026
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/g++ - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Configuring done (0.5s)
-- Generating done (0.2s)
-- Build files have been written to: /Users/clausklein/Workspace/cpp/beman-project/execution26/build/gcc-release
bash-5.2$