1 files changed, 7 insertions, 0 deletions

diff --git a/arch/ppc64/Makefile b/arch/ppc64/Makefile
index d33e20bcc52f..691f3008e698 100644
--- a/arch/ppc64/Makefile
+++ b/arch/ppc64/Makefile
@@ -56,13 +56,20 @@ LDFLAGS_vmlinux	:= -Bstatic -e $(KERNELLOAD) -Ttext $(KERNELLOAD)
 CFLAGS          += -msoft-float -pipe -mminimal-toc -mtraceback=none \
                    -mcall-aixdesc
 
+GCC_VERSION     := $(call cc-version)
+GCC_BROKEN_VEC  := $(shell if [ $(GCC_VERSION) -lt 0400 ] ; then echo "y"; fi ;)
+
 ifeq ($(CONFIG_POWER4_ONLY),y)
 ifeq ($(CONFIG_ALTIVEC),y)
+ifeq ($(GCC_BROKEN_VEC),y)
         CFLAGS += $(call cc-option,-mcpu=970)
 else
         CFLAGS += $(call cc-option,-mcpu=power4)
 endif
 else
+        CFLAGS += $(call cc-option,-mcpu=power4)
+endif
+else
         CFLAGS += $(call cc-option,-mtune=power4)
 endif