--- xen-unstable.orig/tools/Rules.mk	2005-02-07 10:12:56.184342544 -0600
+++ xen-unstable/tools/Rules.mk	2005-02-07 10:16:30.674735048 -0600
@@ -4,12 +4,14 @@ XEN_XC             = $(XEN_ROOT)/tools/p
 XEN_LIBXC          = $(XEN_ROOT)/tools/libxc
 XEN_LIBXUTIL       = $(XEN_ROOT)/tools/libxutil
 
-ifeq ($(TARGET_ARCH),x86_32)
+XEN_TARGET_ARCH ?= $(shell uname -m | sed -e s/i.86/x86_32/)
+
+ifeq ($(XEN_TARGET_ARCH),x86_32)
 CFLAGS  += -m32 -march=i686
 LDFLAGS += -m elf_i386
 endif
 
-ifeq ($(TARGET_ARCH),x86_64)
-CFLAGS  += -m64
+ifeq ($(XEN_TARGET_ARCH),x86_64)
+CFLAGS  += -m64 -fpic
 LDFLAGS += -m elf_x86_64
 endif