diff -r 4e2ffbd99aeb Config.mk
--- a/Config.mk	Wed Aug 19 14:23:30 2009 +0100
+++ b/Config.mk	Wed Aug 19 12:58:55 2009 -0400
@@ -14,7 +14,7 @@
 
 # Tools to run on system hosting the build
 HOSTCC      = gcc
-HOSTCFLAGS  = -Wall -Werror -Wstrict-prototypes -O2 -fomit-frame-pointer
+HOSTCFLAGS  = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer
 HOSTCFLAGS += -fno-strict-aliasing
 
 DISTDIR     ?= $(XEN_ROOT)/dist
diff -r 4e2ffbd99aeb extras/mini-os/minios.mk
--- a/extras/mini-os/minios.mk	Wed Aug 19 14:23:30 2009 +0100
+++ b/extras/mini-os/minios.mk	Wed Aug 19 12:58:55 2009 -0400
@@ -6,7 +6,7 @@
 
 # Define some default flags.
 # NB. '-Wcast-qual' is nasty, so I omitted it.
-DEF_CFLAGS += -fno-builtin -Wall -Werror -Wredundant-decls -Wno-format -Wno-redundant-decls
+DEF_CFLAGS += -fno-builtin -Wall -Wredundant-decls -Wno-format -Wno-redundant-decls
 DEF_CFLAGS += $(call cc-option,$(CC),-fno-stack-protector,)
 DEF_CFLAGS += $(call cc-option,$(CC),-fgnu89-inline)
 DEF_CFLAGS += -Wstrict-prototypes -Wnested-externs -Wpointer-arith -Winline
diff -r 4e2ffbd99aeb tools/blktap/drivers/Makefile
--- a/tools/blktap/drivers/Makefile	Wed Aug 19 14:23:30 2009 +0100
+++ b/tools/blktap/drivers/Makefile	Wed Aug 19 12:58:55 2009 -0400
@@ -5,7 +5,6 @@
 QCOW_UTIL    = img2qcow qcow2raw qcow-create
 LIBAIO_DIR   = ../../libaio/src
 
-CFLAGS   += -Werror
 CFLAGS   += -Wno-unused
 CFLAGS   += -I../lib
 CFLAGS   += $(CFLAGS_libxenctrl)
diff -r 4e2ffbd99aeb tools/blktap/lib/Makefile
--- a/tools/blktap/lib/Makefile	Wed Aug 19 14:23:30 2009 +0100
+++ b/tools/blktap/lib/Makefile	Wed Aug 19 12:58:55 2009 -0400
@@ -13,7 +13,6 @@
 SRCS     :=
 SRCS     += xenbus.c blkif.c xs_api.c
 
-CFLAGS   += -Werror
 CFLAGS   += -Wno-unused
 CFLAGS   += -fPIC
 # get asprintf():
diff -r 4e2ffbd99aeb tools/console/Makefile
--- a/tools/console/Makefile	Wed Aug 19 14:23:30 2009 +0100
+++ b/tools/console/Makefile	Wed Aug 19 12:58:55 2009 -0400
@@ -2,8 +2,6 @@
 XEN_ROOT=../..
 include $(XEN_ROOT)/tools/Rules.mk
 
-CFLAGS  += -Werror
-
 CFLAGS  += $(CFLAGS_libxenctrl)
 CFLAGS  += $(CFLAGS_libxenstore)
 LDFLAGS += $(LDFLAGS_libxenctrl)
diff -r 4e2ffbd99aeb tools/debugger/xenitp/Makefile
--- a/tools/debugger/xenitp/Makefile	Wed Aug 19 14:23:30 2009 +0100
+++ b/tools/debugger/xenitp/Makefile	Wed Aug 19 12:58:55 2009 -0400
@@ -1,7 +1,7 @@
 XEN_ROOT=../../..
 include $(XEN_ROOT)/tools/Rules.mk
 
-#CFLAGS  += -Werror -g -O0
+#CFLAGS  += -g -O0
 
 CFLAGS  += $(CFLAGS_libxenctrl)
 
diff -r 4e2ffbd99aeb tools/firmware/Rules.mk
--- a/tools/firmware/Rules.mk	Wed Aug 19 14:23:30 2009 +0100
+++ b/tools/firmware/Rules.mk	Wed Aug 19 12:58:55 2009 -0400
@@ -10,8 +10,6 @@
 CFLAGS += -DNDEBUG
 endif
 
-CFLAGS += -Werror
-
 # Disable PIE/SSP if GCC supports them. They can break us.
 $(call cc-option-add,CFLAGS,CC,-nopie)
 $(call cc-option-add,CFLAGS,CC,-fno-stack-protector)
diff -r 4e2ffbd99aeb tools/flask/libflask/Makefile
--- a/tools/flask/libflask/Makefile	Wed Aug 19 14:23:30 2009 +0100
+++ b/tools/flask/libflask/Makefile	Wed Aug 19 12:58:55 2009 -0400
@@ -9,7 +9,6 @@
 SRCS       :=
 SRCS       += flask_op.c
 
-CFLAGS   += -Werror
 CFLAGS   += -fno-strict-aliasing
 CFLAGS   += $(INCLUDES) -I./include -I$(XEN_LIBXC) -I$(XEN_INCLUDE)
 
diff -r 4e2ffbd99aeb tools/flask/loadpolicy/Makefile
--- a/tools/flask/loadpolicy/Makefile	Wed Aug 19 14:23:30 2009 +0100
+++ b/tools/flask/loadpolicy/Makefile	Wed Aug 19 12:58:55 2009 -0400
@@ -6,7 +6,7 @@
 LIBFLASK_ROOT = $(XEN_ROOT)/tools/flask/libflask
 
 PROFILE=#-pg
-BASECFLAGS=-Wall -g -Werror
+BASECFLAGS=-Wall -g
 BASECFLAGS+= $(PROFILE)
 #BASECFLAGS+= -I$(XEN_ROOT)/tools
 BASECFLAGS+= $(CFLAGS_libxenctrl)
diff -r 4e2ffbd99aeb tools/fs-back/Makefile
--- a/tools/fs-back/Makefile	Wed Aug 19 14:23:30 2009 +0100
+++ b/tools/fs-back/Makefile	Wed Aug 19 12:58:55 2009 -0400
@@ -5,7 +5,6 @@
 
 IBIN         = fs-backend 
 
-CFLAGS   += -Werror
 CFLAGS   += -Wno-unused
 CFLAGS   += -fno-strict-aliasing
 CFLAGS   += $(CFLAGS_libxenctrl)
diff -r 4e2ffbd99aeb tools/libaio/harness/Makefile
--- a/tools/libaio/harness/Makefile	Wed Aug 19 14:23:30 2009 +0100
+++ b/tools/libaio/harness/Makefile	Wed Aug 19 12:58:55 2009 -0400
@@ -4,7 +4,7 @@
 HARNESS_SRCS:=main.c
 # io_queue.c
 
-CFLAGS=-Wall -Werror -g -O -laio
+CFLAGS=-Wall -g -O -laio
 #-lpthread -lrt
 
 all: $(PROGS)
diff -r 4e2ffbd99aeb tools/libfsimage/Rules.mk
--- a/tools/libfsimage/Rules.mk	Wed Aug 19 14:23:30 2009 +0100
+++ b/tools/libfsimage/Rules.mk	Wed Aug 19 12:58:55 2009 -0400
@@ -1,6 +1,6 @@
 include $(XEN_ROOT)/tools/Rules.mk
 
-CFLAGS += -I$(XEN_ROOT)/tools/libfsimage/common/ -Werror
+CFLAGS += -I$(XEN_ROOT)/tools/libfsimage/common/
 LDFLAGS += -L../common/
 
 PIC_OBJS := $(patsubst %.c,%.opic,$(LIB_SRCS-y))
diff -r 4e2ffbd99aeb tools/libxc/Makefile
--- a/tools/libxc/Makefile	Wed Aug 19 14:23:30 2009 +0100
+++ b/tools/libxc/Makefile	Wed Aug 19 12:58:55 2009 -0400
@@ -54,7 +54,7 @@
 
 -include $(XEN_TARGET_ARCH)/Makefile
 
-CFLAGS   += -Werror -Wmissing-prototypes
+CFLAGS   += -Wmissing-prototypes
 CFLAGS   += $(INCLUDES) -I. -I../xenstore -I../include
 
 # Needed for posix_fadvise64() in xc_linux.c
diff -r 4e2ffbd99aeb tools/libxen/Makefile.dist
--- a/tools/libxen/Makefile.dist	Wed Aug 19 14:23:30 2009 +0100
+++ b/tools/libxen/Makefile.dist	Wed Aug 19 12:58:55 2009 -0400
@@ -22,7 +22,7 @@
 CFLAGS = -Iinclude                     \
          $(shell xml2-config --cflags) \
          $(shell curl-config --cflags) \
-         -W -Wall -Wmissing-prototypes -Werror -std=c99 -O2 -fPIC
+         -W -Wall -Wmissing-prototypes -std=c99 -O2 -fPIC
 
 LDFLAGS = $(shell xml2-config --libs) \
           $(shell curl-config --libs)
diff -r 4e2ffbd99aeb tools/misc/Makefile
--- a/tools/misc/Makefile	Wed Aug 19 14:23:30 2009 +0100
+++ b/tools/misc/Makefile	Wed Aug 19 12:58:55 2009 -0400
@@ -1,8 +1,6 @@
 XEN_ROOT=../..
 include $(XEN_ROOT)/tools/Rules.mk
 
-CFLAGS   += -Werror
-
 INCLUDES += -I $(XEN_XC)
 INCLUDES += -I $(XEN_LIBXC)
 INCLUDES += -I $(XEN_INCLUDE)
diff -r 4e2ffbd99aeb tools/misc/lomount/Makefile
--- a/tools/misc/lomount/Makefile	Wed Aug 19 14:23:30 2009 +0100
+++ b/tools/misc/lomount/Makefile	Wed Aug 19 12:58:55 2009 -0400
@@ -1,8 +1,6 @@
 XEN_ROOT=../../..
 include $(XEN_ROOT)/tools/Rules.mk
 
-CFLAGS  += -Werror
-
 HDRS     = $(wildcard *.h)
 OBJS     = $(patsubst %.c,%.o,$(wildcard *.c))
 
diff -r 4e2ffbd99aeb tools/pygrub/setup.py
--- a/tools/pygrub/setup.py	Wed Aug 19 14:23:30 2009 +0100
+++ b/tools/pygrub/setup.py	Wed Aug 19 12:58:55 2009 -0400
@@ -3,7 +3,7 @@
 import os
 import sys
 
-extra_compile_args  = [ "-fno-strict-aliasing", "-Werror" ]
+extra_compile_args  = [ "-fno-strict-aliasing" ]
 
 XEN_ROOT = "../.."
 
diff -r 4e2ffbd99aeb tools/python/setup.py
--- a/tools/python/setup.py	Wed Aug 19 14:23:30 2009 +0100
+++ b/tools/python/setup.py	Wed Aug 19 12:58:55 2009 -0400
@@ -4,7 +4,7 @@
 
 XEN_ROOT = "../.."
 
-extra_compile_args  = [ "-fno-strict-aliasing", "-Werror" ]
+extra_compile_args  = [ "-fno-strict-aliasing" ]
 
 include_dirs = [ XEN_ROOT + "/tools/libxc",
                  XEN_ROOT + "/tools/xenstore",
diff -r 4e2ffbd99aeb tools/security/Makefile
--- a/tools/security/Makefile	Wed Aug 19 14:23:30 2009 +0100
+++ b/tools/security/Makefile	Wed Aug 19 12:58:55 2009 -0400
@@ -1,7 +1,6 @@
 XEN_ROOT = ../..
 include $(XEN_ROOT)/tools/Rules.mk
 
-CFLAGS   += -Werror
 CFLAGS   += -fno-strict-aliasing
 CFLAGS   += -I. $(CFLAGS_libxenctrl)
 
diff -r 4e2ffbd99aeb tools/vnet/libxutil/Makefile
--- a/tools/vnet/libxutil/Makefile	Wed Aug 19 14:23:30 2009 +0100
+++ b/tools/vnet/libxutil/Makefile	Wed Aug 19 12:58:55 2009 -0400
@@ -25,7 +25,7 @@
 PIC_OBJS := $(LIB_SRCS:.c=.opic)
 
 $(call cc-option-add,CFLAGS,CC,-fgnu89-inline)
-CFLAGS   += -Werror -fno-strict-aliasing
+CFLAGS   += -fno-strict-aliasing
 CFLAGS   += -O3
 #CFLAGS   += -g
 
diff -r 4e2ffbd99aeb tools/vtpm/Rules.mk
--- a/tools/vtpm/Rules.mk	Wed Aug 19 14:23:30 2009 +0100
+++ b/tools/vtpm/Rules.mk	Wed Aug 19 12:58:55 2009 -0400
@@ -9,7 +9,7 @@
 TOOLS_INSTALL_DIR = $(DESTDIR)/usr/bin
 
 # General compiler flags
-CFLAGS   = -Werror -g3 -I.
+CFLAGS   = -g3 -I.
 
 # Generic project files
 HDRS	= $(wildcard *.h)
diff -r 4e2ffbd99aeb tools/vtpm_manager/Rules.mk
--- a/tools/vtpm_manager/Rules.mk	Wed Aug 19 14:23:30 2009 +0100
+++ b/tools/vtpm_manager/Rules.mk	Wed Aug 19 12:58:55 2009 -0400
@@ -9,7 +9,7 @@
 TOOLS_INSTALL_DIR = $(DESTDIR)/usr/bin
 
 # General compiler flags
-CFLAGS	= -Werror -g3 -I.
+CFLAGS	= -g3 -I.
 
 # Generic project files
 HDRS	= $(wildcard *.h)
diff -r 4e2ffbd99aeb tools/xcutils/Makefile
--- a/tools/xcutils/Makefile	Wed Aug 19 14:23:30 2009 +0100
+++ b/tools/xcutils/Makefile	Wed Aug 19 12:58:55 2009 -0400
@@ -11,7 +11,6 @@
 XEN_ROOT	= ../..
 include $(XEN_ROOT)/tools/Rules.mk
 
-CFLAGS += -Werror
 CFLAGS += $(CFLAGS_libxenctrl) $(CFLAGS_libxenguest) $(CFLAGS_libxenstore)
 
 PROGRAMS = xc_restore xc_save readnotes lsevtchn
diff -r 4e2ffbd99aeb tools/xenmon/Makefile
--- a/tools/xenmon/Makefile	Wed Aug 19 14:23:30 2009 +0100
+++ b/tools/xenmon/Makefile	Wed Aug 19 12:58:55 2009 -0400
@@ -13,7 +13,6 @@
 XEN_ROOT=../..
 include $(XEN_ROOT)/tools/Rules.mk
 
-CFLAGS  += -Werror
 CFLAGS  += -I $(XEN_XC)
 CFLAGS  += $(CFLAGS_libxenctrl)
 LDFLAGS += $(LDFLAGS_libxenctrl)
diff -r 4e2ffbd99aeb tools/xenpmd/Makefile
--- a/tools/xenpmd/Makefile	Wed Aug 19 14:23:30 2009 +0100
+++ b/tools/xenpmd/Makefile	Wed Aug 19 12:58:55 2009 -0400
@@ -1,7 +1,6 @@
 XEN_ROOT=../..
 include $(XEN_ROOT)/tools/Rules.mk
 
-CFLAGS  += -Werror
 CFLAGS  += $(CFLAGS_libxenstore)
 LDFLAGS += $(LDFLAGS_libxenstore)
 
diff -r 4e2ffbd99aeb tools/xenstat/libxenstat/Makefile
--- a/tools/xenstat/libxenstat/Makefile	Wed Aug 19 14:23:30 2009 +0100
+++ b/tools/xenstat/libxenstat/Makefile	Wed Aug 19 12:58:55 2009 -0400
@@ -34,7 +34,7 @@
 OBJECTS-$(CONFIG_NetBSD) += src/xenstat_netbsd.o
 SONAME_FLAGS=-Wl,$(SONAME_LDFLAG) -Wl,libxenstat.so.$(MAJOR)
 
-WARN_FLAGS=-Wall -Werror
+WARN_FLAGS=-Wall
 
 CFLAGS+=-Isrc -I$(XEN_LIBXC) -I$(XEN_XENSTORE) -I$(XEN_INCLUDE)
 LDFLAGS+=-Lsrc -L$(XEN_XENSTORE)/ -L$(XEN_LIBXC)/
diff -r 4e2ffbd99aeb tools/xenstat/xentop/Makefile
--- a/tools/xenstat/xentop/Makefile	Wed Aug 19 14:23:30 2009 +0100
+++ b/tools/xenstat/xentop/Makefile	Wed Aug 19 12:58:55 2009 -0400
@@ -18,7 +18,7 @@
 all install xentop:
 else
 
-CFLAGS += -DGCC_PRINTF -Wall -Werror -I$(XEN_LIBXENSTAT)
+CFLAGS += -DGCC_PRINTF -Wall -I$(XEN_LIBXENSTAT)
 LDFLAGS += -L$(XEN_LIBXENSTAT)
 LDLIBS += -lxenstat $(CURSES_LIBS) $(SOCKET_LIBS)
 CFLAGS += -DHOST_$(XEN_OS)
diff -r 4e2ffbd99aeb tools/xenstore/Makefile
--- a/tools/xenstore/Makefile	Wed Aug 19 14:23:30 2009 +0100
+++ b/tools/xenstore/Makefile	Wed Aug 19 12:58:55 2009 -0400
@@ -4,7 +4,6 @@
 MAJOR = 3.0
 MINOR = 0
 
-CFLAGS += -Werror
 CFLAGS += -I.
 CFLAGS += $(CFLAGS_libxenctrl)
 
diff -r 4e2ffbd99aeb tools/xenstore/xenstored_core.c
--- a/tools/xenstore/xenstored_core.c	Wed Aug 19 14:23:30 2009 +0100
+++ b/tools/xenstore/xenstored_core.c	Wed Aug 19 12:58:55 2009 -0400
@@ -865,7 +865,7 @@
 {
 	unsigned int offset, datalen;
 	struct node *node;
-	char *vec[1] = { NULL }; /* gcc4 + -W + -Werror fucks code. */
+	char *vec[1] = { NULL }; /* gcc4 + -W + -Werror demonstrates the pointlessness of -Werror. (expletive removed) */
 	char *name;
 
 	/* Extra "strings" can be created by binary data. */
diff -r 4e2ffbd99aeb tools/xentrace/Makefile
--- a/tools/xentrace/Makefile	Wed Aug 19 14:23:30 2009 +0100
+++ b/tools/xentrace/Makefile	Wed Aug 19 12:58:55 2009 -0400
@@ -1,8 +1,6 @@
 XEN_ROOT=../..
 include $(XEN_ROOT)/tools/Rules.mk
 
-CFLAGS  += -Werror
-
 CFLAGS  += $(CFLAGS_libxenctrl)
 LDFLAGS += $(LDFLAGS_libxenctrl)
 
diff -r 4e2ffbd99aeb xen/arch/ia64/Rules.mk
--- a/xen/arch/ia64/Rules.mk	Wed Aug 19 14:23:30 2009 +0100
+++ b/xen/arch/ia64/Rules.mk	Wed Aug 19 12:58:55 2009 -0400
@@ -68,7 +68,7 @@
 CFLAGS += -DCONFIG_XEN_IA64_TLBFLUSH_CLOCK
 endif
 ifeq ($(no_warns),y)
-CFLAGS	+= -Wa,--fatal-warnings -Werror -Wno-uninitialized
+CFLAGS	+= -Wa,--fatal-warnings -Wno-uninitialized
 endif
 ifneq ($(vhpt_disable),y)
 CFLAGS += -DVHPT_ENABLED=1
diff -r 4e2ffbd99aeb xen/arch/x86/Rules.mk
--- a/xen/arch/x86/Rules.mk	Wed Aug 19 14:23:30 2009 +0100
+++ b/xen/arch/x86/Rules.mk	Wed Aug 19 12:58:55 2009 -0400
@@ -17,7 +17,7 @@
 endif
 
 CFLAGS += -fno-builtin -fno-common
-CFLAGS += -iwithprefix include -Werror -Wno-pointer-arith -pipe
+CFLAGS += -iwithprefix include -Wno-pointer-arith -pipe
 CFLAGS += -I$(BASEDIR)/include 
 CFLAGS += -I$(BASEDIR)/include/asm-x86/mach-generic
 CFLAGS += -I$(BASEDIR)/include/asm-x86/mach-default
diff -r 4e2ffbd99aeb xen/arch/x86/boot/build32.mk
--- a/xen/arch/x86/boot/build32.mk	Wed Aug 19 14:23:30 2009 +0100
+++ b/xen/arch/x86/boot/build32.mk	Wed Aug 19 12:58:55 2009 -0400
@@ -8,7 +8,7 @@
 $(call cc-option-add,CFLAGS,CC,-fno-stack-protector)
 $(call cc-option-add,CFLAGS,CC,-fno-stack-protector-all)
 
-CFLAGS += -Werror -fno-builtin -msoft-float
+CFLAGS += -fno-builtin -msoft-float
 
 # NB. awk invocation is a portable alternative to 'head -n -1'
 %.S: %.bin