devkitPro

fatGetVolumeLabel in libfat.c is using regular C memory allocation routines (malloc/free) instead of the appropriate libfat wrappers (_FAT_mem_allocate/_FAT_mem_free), which breaks compiling when those functions aren't available.

Interesting, what are you using libfat for that you don't have malloc/free available? Mainly curious, I'd actually forgotten we allowed for that case.

Wii, but I use my own code for USB storage which expects data buffers allocated from MEM2.