cmd_drivers/block/built-in.a := rm -f drivers/block/built-in.a.symversions     ; cat drivers/block/loop.o.symversions >> drivers/block/built-in.a.symversions; rm -f drivers/block/built-in.a; llvm-ar cDPrST drivers/block/built-in.a drivers/block/brd.o drivers/block/loop.o