meCoffee_in_CPP/tools/apply_cplusplus_flags.py

# Adds the C++-only compiler flags to the C++ flag list so C sources of the Arduino
# core do not warn about options that do not apply to C.
Import("env")

env.Replace(CXXFLAGS=[flag for flag in env.get("CXXFLAGS", []) if flag != "-std=gnu++11"])
env.Append(CXXFLAGS=["-std=gnu++17", "-fno-exceptions", "-fno-rtti", "-fno-threadsafe-statics"])