Fix warnings when running make dist-clean

Sming/Components/Storage/component.mk

@@ -34,28 +34,26 @@ HWCONFIG_TOOL := \
 	BUILD_BASE=$(BUILD_BASE) \
 	$(PYTHON) $(PARTITION_TOOLS)/hwconfig/hwconfig.py
 
-ifeq (,$(MAKE_DOCS))
+ifeq (,$(MAKE_DOCS)$(MAKE_CLEAN))
 
 # Generate build variables from hardware configuration
 HWCONFIG_MK := $(PROJECT_DIR)/$(OUT_BASE)/hwconfig.mk
 $(shell $(HWCONFIG_TOOL) --quiet expr $(HWCONFIG) $(HWCONFIG_MK) "config.buildVars()")
 include $(HWCONFIG_MK)
+ifeq ($(SMING_ARCH_HW),)
+$(error Hardware configuration error)
+else ifneq ($(SMING_ARCH),$(SMING_ARCH_HW))
+$(error Hardware configuration is for arch $(SMING_ARCH_HW), does not match SMING_ARCH ($(SMING_ARCH)))
+endif
+COMPONENT_CXXFLAGS := -DPARTITION_TABLE_OFFSET=$(PARTITION_TABLE_OFFSET)
 
+# Function to evaluate expression against config
 HWEXPR := $(HWCONFIG_TOOL) $(if $(PART),--part "$(PART)") expr $(HWCONFIG) -
 
 define HwExpr
 $(shell $(HWEXPR) "$1")
 endef
 
-# Import PARTITION_TABLE_OFFSET from hardware configuration
-DEBUG_VARS += PARTITION_TABLE_OFFSET
-ifeq ($(SMING_ARCH_HW),)
-$(error Hardware configuration error)
-else ifneq ($(SMING_ARCH),$(SMING_ARCH_HW))
-$(error Hardware configuration is for arch $(SMING_ARCH_HW), does not match SMING_ARCH ($(SMING_ARCH)))
-endif
-COMPONENT_CXXFLAGS		:= -DPARTITION_TABLE_OFFSET=$(PARTITION_TABLE_OFFSET)
-
 
 ##@Configuration
 

Sming/Makefile

@@ -161,7 +161,7 @@ component-samples-clean: ##Clean all component samples
 
 CLEAN_TESTS := $(TESTS_COMPLETED:complete=clean)
 .PHONY: tests-clean
-tests-clean: $(CLEAN_TESTS) ##Clean all test applications (all arch/build types)
+tests-clean: $(wildcard $(CLEAN_TESTS)) ##Clean all test applications (all arch/build types)
 	-$(Q) rm -f $(TESTS_COMPLETED)
 
 .PHONY: $(CLEAN_TESTS)