powerpc: Add -mno-altivec for ARCH=powerpc builds

Signed-off-by: Paul Mackerras <paulus@samba.org>

diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile
index 29cda0732703ccf3327dc793570aeb39303f36ee..2f4cce06a7e55cd2888c983b01352ce650aa52ec 100644 (file)
--- a/arch/powerpc/Makefile
+++ b/arch/powerpc/Makefile
@@ -93,6 +93,9 @@ else
 endif
 endif
 
+# No AltiVec instruction when building kernel
+CFLAGS += $(call cc-option,-mno-altivec)
+
 # Enable unit-at-a-time mode when possible. It shrinks the
 # kernel considerably.
 CFLAGS += $(call cc-option,-funit-at-a-time)