make: Fix dependency generation

In case if no goals specified the all
goal is implied so don't forget to generate
deps. This as well fixes a problem where
two "make clean" in a row forced build system
to regenerate deps.
Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Looks-good-to: Stanislav Kinsbursky <skinsbursky@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

Makefile

@@ -201,8 +201,16 @@ help:
 	$(E) '      test            - Run zdtm test-suite'
 .PHONY: help
 
-deps-targets := %.o %.s %.i
+deps-targets := %.o %.s %.i $(PROGRAM) zdtm test-legacy
 
-ifeq ($(filter deps-targets, $(MAKECMDGOALS)),)
+ifneq ($(filter $(deps-targets), $(MAKECMDGOALS)),)
+	INCDEPS := 1
+endif
+
+ifeq ($(MAKECMDGOALS),)
+	INCDEPS := 1
+endif
+
+ifeq ($(INCDEPS),1)
 -include $(DEPS)
 endif