x86_64: Use standard AS rule

arch/x86_64/ia32/Makefile

@@ -2,10 +2,7 @@
 # Makefile for the ia32 kernel emulation subsystem.
 #
 
-.S.s:
-	$(CPP) $(AFLAGS) -o $*.s $<
-.S.o:
-	$(CC) $(AFLAGS) -c -o $*.o $<
+USE_STANDARD_AS_RULE := true
 
 export-objs := ia32_ioctl.o	
 

arch/x86_64/kernel/Makefile

 #
 # Makefile for the linux kernel.
 #
-# 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 definitions are now in the main makefile...
 
-.S.o:
-	$(CC) $(AFLAGS) -traditional -c $< -o $*.o
+USE_STANDARD_AS_RULE := true
+
+EXTRA_AFLAGS := -traditional
 
 all: kernel.o head.o head64.o init_task.o
 

arch/x86_64/lib/Makefile

@@ -2,8 +2,7 @@
 # Makefile for x86_64-specific library files..
 #
 
-.S.o:
-	$(CC) $(AFLAGS) -c $< -o $*.o
+USE_STANDARD_AS_RULE := true
 
 L_TARGET = lib.a
 obj-y  = generic-checksum.o old-checksum.o delay.o \