tools/perf/arch/powerpc/Makefile - linux - Git at Google

 ifndef NO_DWARF
 PERF_HAVE_DWARF_REGS := 1
 LIB_OBJS += $(OUTPUT)arch/$(ARCH)/util/dwarf-regs.o
 LIB_OBJS += $(OUTPUT)arch/$(ARCH)/util/skip-callchain-idx.o
 endif
 LIB_OBJS += $(OUTPUT)arch/$(ARCH)/util/header.o
	ifndef NO_DWARF
	PERF_HAVE_DWARF_REGS := 1
	LIB_OBJS += $(OUTPUT)arch/$(ARCH)/util/dwarf-regs.o
	LIB_OBJS += $(OUTPUT)arch/$(ARCH)/util/skip-callchain-idx.o
	endif
	LIB_OBJS += $(OUTPUT)arch/$(ARCH)/util/header.o