I've noticed that the macOS builds fail because in Clang the default level (warning or error) for Implicit function declaration seems to be error, while in other compilers it is warning.
This pr tries to fix this issue by defining that this should always be an warning, not an error
I've noticed that the macOS builds fail because in Clang the default level (warning or error) for Implicit function declaration seems to be error, while in other compilers it is warning. This pr tries to fix this issue by defining that this should always be an warning, not an error