--- xen-3.0.4_1-src/Config.mk	2007-01-08 15:00:44.000000000 +0000
+++ xen-3.0.4_1-src/Config.mk	2007-01-10 10:04:04.000000000 +0000
@@ -13,7 +13,7 @@ CONFIG_$(XEN_OS) := y
 
 # Tools to run on system hosting the build
 HOSTCC     = gcc
-HOSTCFLAGS = -Wall -Werror -Wstrict-prototypes -O2 -fomit-frame-pointer
+HOSTCFLAGS = -Werror -Wstrict-prototypes -O2 -fomit-frame-pointer
 
 DISTDIR     ?= $(XEN_ROOT)/dist
 DESTDIR     ?= /
@@ -39,7 +39,7 @@ endif
 
 CFLAGS += -std=gnu99
 
-CFLAGS += -Wall -Wstrict-prototypes
+CFLAGS += -Wstrict-prototypes 
 
 # -Wunused-value makes GCC 4.x too aggressive for my taste: ignoring the
 # result of any casted expression causes a warning.