I've acquired an Atmel Studio 7 project that uses Arduino code, customer-supplied
C++ code, other third party C++ code and third-party C code.
The project has warnings disabled because otherwise GNU complains about the option -fno-threadsafe-statics for all the C files.
I'd like to enable warnings, so I'd like to remove the option for just the C files.
How, if at all, can I do that?
Edit: better title