tools: make building xend configurable.

xend has been deprecated for 2 releases now. Lets make it possible to not even
build it.

For now I'm leaving the default of on but I would like to change that before
the 4.4 release.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Reviewed-by: Andrew Cooper <andrew.cooper3@citrix.com>
Acked-by: Matt Wilson <msw@amazon.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>

tools/python/Makefile

@@ -16,20 +16,26 @@ build: genpath genwrap.py $(XEN_ROOT)/tools/libxl/libxl_types.idl \
 		$(XEN_ROOT)/tools/libxl/libxl_types.idl \
 		xen/lowlevel/xl/_pyxl_types.h \
 		xen/lowlevel/xl/_pyxl_types.c
-	CC="$(CC)" CFLAGS="$(CFLAGS)" $(PYTHON) setup.py build
+	CC="$(CC)" CFLAGS="$(CFLAGS)" $(PYTHON) setup.py build --xend=$(CONFIG_XEND)
 
 .PHONY: install
 install: install-dtd
 	CC="$(CC)" CFLAGS="$(CFLAGS)" $(PYTHON) setup.py install \
-		$(PYTHON_PREFIX_ARG) --root="$(DESTDIR)" --force
+		$(PYTHON_PREFIX_ARG) --root="$(DESTDIR)" --force --xend=$(CONFIG_XEND)
 
 	$(INSTALL_DIR) $(DESTDIR)$(SBINDIR)
+ifeq ($(CONFIG_XEND),y)
 	$(INSTALL_PYTHON_PROG) xen/xm/xm $(DESTDIR)$(SBINDIR)/xm
 	$(INSTALL_PYTHON_PROG) xen/xend/xend $(DESTDIR)$(SBINDIR)/xend
+endif
 
 install-dtd: all
+ifeq ($(CONFIG_XEND),y)
 	$(INSTALL_DIR) $(DESTDIR)$(SHAREDIR)/xen
 	$(INSTALL_DATA) xen/xm/create.dtd $(DESTDIR)$(SHAREDIR)/xen
+else
+	:
+endif
 
 .PHONY: test
 test: