nmk: Make collect-deps to be more precise about targets

Thus to choose which deps to include, for example if only
particular file is being build there is no need to include
any other deps.
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: Andrei Vagin <avagin@virtuozzo.com>

scripts/nmk/scripts/build.mk

@@ -277,20 +277,22 @@ define collect-target-deps
         endif
 endef
 define collect-deps
-        ifneq ($(filter-out %.d,$(1)),)
-                ifneq ($(filter %.o %.i %.s,$(1)),)
-                        deps-y += $(addsuffix .d,$(basename $(1)))
-                endif
-        endif
-        $(eval $(call collect-builtin-deps,$(builtin-target),$(1)))
-        $(eval $(call collect-lib-deps,$(lib-target),$(1)))
-        $(foreach t,$(hostprogs-y),$(eval $(call collect-hostprogs-deps,$(t),$(1))))
-        $(foreach t,$(target),$(eval $(call collect-target-deps,$(t),$(1))))
-        ifneq ($(filter all $(filter-out $(builtin-target) $(lib-target), $(all-y)) $(hostprogs-y),$(1)),)
-                deps-y += $(obj-y:.o=.d)
-                deps-y += $(lib-y:.o=.d)
+        ifneq ($(filter all,$(1)),)
+                $(eval $(call collect-builtin-deps,$(builtin-target),$(builtin-target)))
+                $(eval $(call collect-lib-deps,$(lib-target),$(lib-target)))
                 $(foreach t,$(hostprogs-y),$(eval $(call collect-hostprogs-deps,$(t),$(t))))
                 $(foreach t,$(target),$(eval $(call collect-target-deps,$(t),$(t))))
+        else
+                ifneq ($(filter-out %.d $(builtin-target) $(lib-target) $(hostprogs-y) $(target),$(1)),)
+                        ifneq ($(filter %.o %.i %.s,$(1)),)
+                                deps-y += $(addsuffix .d,$(basename $(1)))
+                        endif
+                else
+                        $(eval $(call collect-builtin-deps,$(builtin-target),$(1)))
+                        $(eval $(call collect-lib-deps,$(lib-target),$(1)))
+                        $(foreach t,$(hostprogs-y),$(eval $(call collect-hostprogs-deps,$(t),$(1))))
+                        $(foreach t,$(target),$(eval $(call collect-target-deps,$(t),$(1))))
+                endif
         endif
 endef