kbuild: arch/alpha cleanup / O_TARGET removal

arch/alpha/Makefile

@@ -91,15 +91,9 @@ CFLAGS := $(CFLAGS) -Wa,-mev6
 
 HEAD := arch/alpha/kernel/head.o
 
-SUBDIRS := $(SUBDIRS) arch/alpha/kernel arch/alpha/mm arch/alpha/lib \
-	arch/alpha/math-emu
-CORE_FILES := arch/alpha/kernel/kernel.o arch/alpha/mm/mm.o $(CORE_FILES)
-
-ifeq ($(CONFIG_MATHEMU),y)
-  CORE_FILES := $(CORE_FILES) arch/alpha/math-emu/built-in.o
-endif
-
-LIBS := $(TOPDIR)/arch/alpha/lib/lib.a $(LIBS) $(TOPDIR)/arch/alpha/lib/lib.a
+core-y			:= arch/alpha/kernel/ arch/alpha/mm/
+core-$(CONFIG_MATHEMU)  += arch/alpha/math-emu/built-in.o
+libs-y 			:= arch/alpha/lib
 
 MAKEBOOT = $(MAKE) -C arch/alpha/boot
 

arch/alpha/kernel/Makefile

@@ -2,7 +2,6 @@
 # Makefile for the linux kernel.
 #
 
-O_TARGET	:= kernel.o
 EXTRA_TARGETS	:= head.o
 
 EXTRA_AFLAGS	:= $(CFLAGS)

arch/alpha/mm/Makefile

 #
 # Makefile for the linux alpha-specific parts of the memory manager.
 #
-# Note! Dependencies are done automagically by 'make dep', which also
-# removes any old dependencies. DON'T put your own dependencies here
-# unless it's something special (ie not a .c file).
-#
-# Note 2! The CFLAGS definition is now in the main makefile...
-
-O_TARGET := mm.o
 
 obj-y	:= init.o fault.o extable.o