add support for auxiliary arguments to the cppunit tests

solenv/gbuild/CppunitTest.mk

@@ -49,7 +49,7 @@ $(call gb_CppunitTest_get_target,%) : $(gb_CppunitTest_CPPTESTTARGET)
 	$(call gb_Output_announce,$*,$(true),CUT,2)
 	$(call gb_Helper_abbreviate_dirs_native,\
 		mkdir -p $(dir $@) && \
-		$(gb_CppunitTest_CPPTESTCOMMAND) $(call gb_LinkTarget_get_target,CppunitTest/$(call gb_CppunitTest_get_libfilename,$*)) > $@.log 2>&1 || (cat $@.log && false))
+		$(gb_CppunitTest_CPPTESTCOMMAND) $(call gb_LinkTarget_get_target,CppunitTest/$(call gb_CppunitTest_get_libfilename,$*)) $(ARGS) > $@.log 2>&1 || (cat $@.log && false))
 
 define gb_CppunitTest_CppunitTest
 $(call gb_CppunitTest__CppunitTest_impl,$(1),$(call gb_CppunitTest__get_linktargetname,$(1)))
@@ -68,10 +68,16 @@ $(call gb_LinkTarget_set_defs,$(2), \
 $(call gb_CppunitTest_get_target,$(1)) : $(call gb_LinkTarget_get_target,$(2))
 $(call gb_CppunitTest_get_clean_target,$(1)) : $(call gb_LinkTarget_get_clean_target,$(2))
 $(call gb_CppunitTest_CppunitTest_platform,$(1),$(2),$(gb_CppunitTest_DLLDIR)/$(call gb_CppunitTest_get_libfilename,$(1)))
+$(call gb_CppunitTest_get_target,$(1)) : ARGS :=
 $$(eval $$(call gb_Module_register_target,$(call gb_CppunitTest_get_target,$(1)),$(call gb_CppunitTest_get_clean_target,$(1))))
 
 endef
 
+define gb_CppunitTest_set_args
+$(call gb_CppunitTest_get_target,$(1)) : ARGS := $(2)
+
+endef
+
 define gb_CppunitTest__forward_to_Linktarget
 gb_CppunitTest_$(1) = $$(call gb_LinkTarget_$(1),$$(call gb_CppunitTest__get_linktargetname,$$(1)),$$(2),$$(3))