makefile: Automatically re-run configure if it has been modified.
diff --git a/Makefile.in b/Makefile.in
index bdf0155..b94782f 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -68,8 +68,7 @@
 @MAKE_RULES@
 
 config.status: configure
-	@echo configure is newer than config.status, please rerun ./configure!
-	@exit 1
+	@./config.status --recheck
 
 wine: $(WINEWRAPPER)
 	$(RM) $@ && $(LN_S) $(WINEWRAPPER) $@