Force all the tools to be rebuilt before make depend, otherwise make
will try to do that from the include directory.

diff --git a/Makefile.in b/Makefile.in
index 7c78197..677d40c 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -121,20 +121,7 @@
 programs/__install__: libs tools include/__install__ dlls/__install-lib__
 tools/__install__: tools
 
-# Dependencies rules
-
-$(SUBDIRS:%=%/__depend__): idl
-
-idl: $(WIDL) dummy
-	cd include && $(MAKE) all
-
-$(WIDL): $(TOOLSDIR)/libs/libwpp.a $(TOOLSDIR)/libs/libwine_port.a
-	cd $(TOOLSDIR)/tools/widl && $(MAKE) `basename $@`
-
-$(TOOLSDIR)/libs/libwpp.a $(TOOLSDIR)/libs/libwine_port.a:
-	cd $(TOOLSDIR)/libs && $(MAKE) `basename $@`
-
-.PHONY: idl
+$(SUBDIRS:%=%/__depend__): tools include
 
 # Test rules