diff -r c32abbaccdac xen/arch/powerpc/Rules.mk
--- a/xen/arch/powerpc/Rules.mk	Tue Jan 09 19:24:12 2007 +0000
+++ b/xen/arch/powerpc/Rules.mk	Wed Jan 10 03:13:33 2007 +0200
@@ -12,7 +12,7 @@ C_WARNINGS :=
 # C_WARNINGS += -Wpacked
 
 CFLAGS := -m64 -ffreestanding -fno-builtin -fno-common -fno-strict-aliasing
-CFLAGS += -iwithprefix include -Wall -Werror -pipe
+CFLAGS += -iwithprefix include -Wall -Wno-always-true -Werror -pipe
 CFLAGS += -I$(BASEDIR)/include
 CFLAGS += -I$(BASEDIR)/include/asm-powerpc/mach-generic
 CFLAGS += -I$(BASEDIR)/include/asm-powerpc/mach-default
diff -r c32abbaccdac xen/arch/x86/Rules.mk
--- a/xen/arch/x86/Rules.mk	Tue Jan 09 19:24:12 2007 +0000
+++ b/xen/arch/x86/Rules.mk	Wed Jan 10 03:13:13 2007 +0200
@@ -18,7 +18,7 @@ endif
 endif
 
 CFLAGS += -fno-builtin -fno-common -fno-strict-aliasing
-CFLAGS += -iwithprefix include -Werror -Wno-pointer-arith -pipe
+CFLAGS += -iwithprefix include -Wno-always-true -Werror -Wno-pointer-arith -pipe
 CFLAGS += -I$(BASEDIR)/include 
 CFLAGS += -I$(BASEDIR)/include/asm-x86/mach-generic
 CFLAGS += -I$(BASEDIR)/include/asm-x86/mach-default