diff -r f80cf52a4fb6 stubdom/Makefile
--- a/stubdom/Makefile	Thu Apr 30 14:34:15 2009 +0100
+++ b/stubdom/Makefile	Mon May 04 11:35:03 2009 +0200
@@ -235,6 +235,8 @@ libxc-$(XEN_TARGET_ARCH)/libxenctrl.a li
 ioemu: cross-zlib cross-libpci libxc
 	[ -f ioemu/config-host.mak ] || \
 	  ( $(absolutify_xen_root); \
+	    PREFIX=$(PREFIX); \
+	    export PREFIX; \
 	    cd ioemu ; \
 	    LWIPDIR=$(CURDIR)/lwip-$(XEN_TARGET_ARCH) \
 	    TARGET_CPPFLAGS="$(TARGET_CPPFLAGS)" \
diff -r f80cf52a4fb6 tools/Makefile
--- a/tools/Makefile	Thu Apr 30 14:34:15 2009 +0100
+++ b/tools/Makefile	Mon May 04 11:35:03 2009 +0200
@@ -91,6 +94,8 @@ ioemu-dir-find:
 	fi
 	set -e; \
 		$(absolutify_xen_root); \
+		PREFIX=$(PREFIX); \
+		export PREFIX; \
 		cd ioemu-dir; \
 		./xen-setup $(IOEMU_CONFIGURE_CROSS)