Index: kernel/arch/ppc64/Makefile.inc
===================================================================
--- kernel/arch/ppc64/Makefile.inc	(revision f74bbaf20e8d8be55495c56affc5b17ef6ea2bf0)
+++ kernel/arch/ppc64/Makefile.inc	(revision 3ee8a07528aa466b40a362672714a05e936d396e)
@@ -36,5 +36,5 @@
 TOOLCHAIN_DIR = /usr/local/ppc64
 
-CFLAGS += -mcpu=powerpc64 -msoft-float -m64
+GCC_CFLAGS += -mcpu=powerpc64 -msoft-float -m64
 AFLAGS += -a64
 LFLAGS += -no-check-sections -N