ia64 kvm fixes for O=... builds

* EXTRA_CFLAGS do not apply for *.S
* don't bother with symlinks to ../lib/mem*.S, just add ../lib/mem*.o
  to object list
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

arch/ia64/kvm/Makefile

@@ -42,10 +42,7 @@ $(obj)/$(offsets-file): arch/ia64/kvm/asm-offsets.s
 #
 
 EXTRA_CFLAGS += -Ivirt/kvm -Iarch/ia64/kvm/
-
-$(addprefix $(objtree)/,$(obj)/memcpy.S $(obj)/memset.S):
-	$(shell ln -snf ../lib/memcpy.S $(src)/memcpy.S)
-	$(shell ln -snf ../lib/memset.S $(src)/memset.S)
+EXTRA_AFLAGS += -Ivirt/kvm -Iarch/ia64/kvm/
 
 common-objs = $(addprefix ../../../virt/kvm/, kvm_main.o ioapic.o)
 
@@ -57,5 +54,5 @@ EXTRA_CFLAGS_vcpu.o += -mfixed-range=f2-f5,f12-f127
 kvm-intel-objs = vmm.o vmm_ivt.o trampoline.o vcpu.o optvfault.o mmio.o \
 	vtlb.o process.o
 #Add link memcpy and memset to avoid possible structure assignment error
-kvm-intel-objs += memset.o memcpy.o
+kvm-intel-objs += ../lib/memset.o ../lib/memcpy.o
 obj-$(CONFIG_KVM_INTEL) += kvm-intel.o