BUILD: Makefile: add a function to detect support by the compiler of certain options

BUILD: Makefile: add a function to detect support by the compiler of certain options

The recent gcc and clang are utterly broken and apparently written by
people who don't use them anymore, because they emit warnings that are
impossible to disable in the code, which is the opposite of what a
warning should do. It is however possible to disable these warnings on
the command line, but not in a backwards-compatible way.

Thus here we create a new function which detect if the compiler supports
certain options, and which adds them if supported.