CHK     include/linux/version.h
  CHK     include/generated/utsrelease.h
  CALL    scripts/checksyscalls.sh
  CHK     include/generated/compile.h
  CHK     include/linux/version.h
make[2]: `scripts/unifdef' is up to date.
  CC      arch/mips/boot/compressed/dummy.o
  OBJCOPY arch/mips/boot/compressed/piggy.o
  LD      vmlinuz
arch/mips/boot/compressed/calc_vmlinuz_load_addr: In function `main':
: multiple definition of `main'
arch/mips/boot/compressed/piggy.o:dummy.c:(.text+0x0): first defined here
mips_4KCle-ld: Warning: size of symbol `main' changed from 8 in arch/mips/boot/compressed/piggy.o to 335 in arch/mips/boot/compressed/calc_vmlinuz_load_addr
mips_4KCle-ld: warning: unknown architecture of input file `arch/mips/boot/compressed/calc_vmlinuz_load_addr' is incompatible with mips:isa32 output
make[1]: *** [vmlinuz] Error 1
make: *** [vmlinuz] Error 2