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-rw-r--r--arch/ppc64/Makefile7
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/ppc64/Makefile b/arch/ppc64/Makefile
index d33e20bcc52..691f3008e69 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