diff -ur xen-4.4.1.orig/stubdom/Makefile xen-4.4.1/stubdom/Makefile
--- xen-4.4.1.orig/stubdom/Makefile	2014-09-02 06:20:19.000000000 +0000
+++ xen-4.4.1/stubdom/Makefile	2014-10-13 06:57:49.075000000 +0000
@@ -165,7 +165,7 @@
 	rm $@ -rf || :
 	mv gmp-$(GMP_VERSION) $@
 	#patch -d $@ -p0 < gmp.patch
-	cd $@; CPPFLAGS="-isystem $(CROSS_PREFIX)/$(GNU_TARGET_ARCH)-xen-elf/include $(TARGET_CPPFLAGS)" CFLAGS="$(TARGET_CFLAGS)" CC=$(CC) $(GMPEXT) ./configure --disable-shared --enable-static --disable-fft --without-readline --prefix=$(CROSS_PREFIX)/$(GNU_TARGET_ARCH)-xen-elf
+	cd $@; CPPFLAGS="-isystem $(CROSS_PREFIX)/$(GNU_TARGET_ARCH)-xen-elf/include $(TARGET_CPPFLAGS)" CFLAGS="$(TARGET_CFLAGS)" CC=$(CC) $(GMPEXT) ./configure --disable-shared --enable-static --disable-fft --without-readline --prefix=$(CROSS_PREFIX)/$(GNU_TARGET_ARCH)-xen-elf --build=$(GNU_TARGET_ARCH)
 	sed -i 's/#define HAVE_OBSTACK_VPRINTF 1/\/\/#define HAVE_OBSTACK_VPRINTF 1/' $@/config.h
 	touch $@