Without the change build fails on upstream gcc-10 as:
ld: _obj/device/r4300/x86_64/dynarec.o (symbol from plugin): in function `dyna_jump': (.text+0x0):
multiple definition of `g_r4300_opcodes'; _obj/device/r4300/cached_interp.o (symbol from plugin):(.text+0x0): first defined here