Nargash

I ran into this when attempting to get Retroachievements working with the Wii in Retroarch. `getsockname` still needs to be implemented. Could [this](https://rtl-lwip.sourceforge.net/sources/sockets_8c-source.html#l00928) be used as a model? Apologies if...

Thank you for the feedback. Would you prefer I back out the mkdir changes and just submit the warning message changes, or is this whole PR not needed at all?

> Yeah, just the warnings should be good. It's likely the installer that should set up those directories/configurations rather than the application itself. Thank you! I have committed your changes...

This is something I'd like to see fixed as well. I wonder if it could be worth testing setting HAVE_CHEEVOS = 1 in the wii [makefile](https://github.com/libretro/RetroArch/blob/master/Makefile.wii) and trying to compile...

> please make this happen I had started to see if I could fix this myself but never was able to even get a Wii version to compile with HAVE_CHEEVOS...

I can produce this on Linux as well. One thing to note, this only happens when the scaled resolution is greater than your monitor resolution (if running full screen) or...