CONFIG_ALTIVEC is always enabled for CoreNet64. And if we
select CONFIG_E{5,6}500_CPU this may introduce -mcpu=e500mc64
into $CFLAGS. But Altivec and Spe options not allowed with
e500mc64, so :

  CC      arch/powerpc/lib/xor_vmx.o
arch/powerpc/lib/xor_vmx.c:1:0: error: AltiVec not supported in this target
make[1]: *** [arch/powerpc/lib/xor_vmx.o] Error 1
make: *** [arch/powerpc/lib] Error 2

Signed-off-by: Tiejun Chen <tiejun.c...@windriver.com>
---
 arch/powerpc/lib/Makefile |    3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/powerpc/lib/Makefile b/arch/powerpc/lib/Makefile
index 95a20e1..641a77d 100644
--- a/arch/powerpc/lib/Makefile
+++ b/arch/powerpc/lib/Makefile
@@ -40,5 +40,8 @@ obj-y                 += code-patching.o
 obj-y                  += feature-fixups.o
 obj-$(CONFIG_FTR_FIXUP_SELFTEST) += feature-fixups-test.o
 
+# Altivec and Spe options not allowed with e500mc64 in GCC.
+ifeq ($(call cc-option-yn,-mcpu=e500mc64),n)
 obj-$(CONFIG_ALTIVEC)  += xor_vmx.o
 CFLAGS_xor_vmx.o += -maltivec -mabi=altivec
+endif
-- 
1.7.9.5

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