cmd_drivers/rtc/built-in.a := rm -f drivers/rtc/built-in.a.symversions   ; cat drivers/rtc/lib.o.symversions >> drivers/rtc/built-in.a.symversions   ; cat drivers/rtc/class.o.symversions >> drivers/rtc/built-in.a.symversions   ; cat drivers/rtc/interface.o.symversions >> drivers/rtc/built-in.a.symversions   ; cat drivers/rtc/nvmem.o.symversions >> drivers/rtc/built-in.a.symversions       ; cat drivers/rtc/sysfs.o.symversions >> drivers/rtc/built-in.a.symversions    ; rm -f drivers/rtc/built-in.a; llvm-ar cDPrST drivers/rtc/built-in.a drivers/rtc/lib.o drivers/rtc/class.o drivers/rtc/interface.o drivers/rtc/nvmem.o drivers/rtc/dev.o drivers/rtc/proc.o drivers/rtc/sysfs.o drivers/rtc/rtc-pl030.o drivers/rtc/rtc-pl031.o