Hatari hardcodes paths to the system directory for each console. In the upcoming Aroma build for Wii U RetroArch (https://github.com/libretro/RetroArch/pull/14925), these paths changed. Rather than updating them to a new hardcoded path, use the libretro API to get the system directory.
Changes like this could probably be had on all the console ports, but this affects Wii U only for now. This code still works fine on the current Tiramisu build, so it's safe to merge without waiting for Aroma.
Hatari hardcodes paths to the system directory for each console. In the upcoming Aroma build for Wii U RetroArch (https://github.com/libretro/RetroArch/pull/14925), these paths changed. Rather than updating them to a new hardcoded path, use the libretro API to get the system directory.
Changes like this could probably be had on all the console ports, but this affects Wii U only for now. This code still works fine on the current Tiramisu build, so it's safe to merge without waiting for Aroma.