Fabrizio Gennari

Add a code comment explaining why there are cases where setting the value of kernal_rom_name is the right thing to do even though an attempt to load that kernal rom file has just failed

If a kernal file whose name is specified as relative path is loaded before expanded_system_path is initialised, it will fail, but this shouldn't be a fatal error, as the load will succeed when attempted after the initialisation of expanded_system_path

Add a new target for Mac shared library

Introduce weak linking (on Mac) delay loading (on Windows) of dependent libraries to avoid explicit loading of libraries and symbols

Visual Studio was complaining about an uninitialised variable. It wasn't, but make it clearer to Visual Studio too

Modifications to fix some Windows warnings

Change a macro to fix Visual Studio build

FIx a compilation error with recent compilers